Science and the Infinite Part 3

I have tried in these Views to use only simple everyday language, and am fully aware how inadequate are the words I have employed; but my readers will have, I hope, recognised how difficult, and in many cases impossible, it is, in treating these metaphysical subjects, to find words to express the exact meaning; we have to describe the Infinite in terms of the finite, and by use of imperfect finite a.n.a.logies to get a glimpse of the otherwise unthinkable, and even then it requires a mystical sense, or what St. Paul called spiritual discernment, to see beyond the physical mists. If the whole of the phenomena of Nature must be looked upon as the manifestation of the Divine Noumenon, it follows that Matter is as divine as the Spiritual, though not as real; it is His shadow, or the outline of His very image, thrown upon the material plane of our sensations; and the principle of sympathetic action, upon which, as we have seen, the whole power to influence depends throughout the Universe, becomes surely the best symbol we can use for understanding the efficacy of prayer and the connection between our Transcendental Self and the All-loving. Realise that the Transcendental Ego is a Spirit, and therefore akin to the Great Spirit, not only in essence, but in "loving and knowing communion,"

then look at my last experiment, where we saw two material bodies (remember they are shadow manifestations of the Reality) which could influence each other from the fact that they were akin, not only in substance, but in perfect sympathetic communion.

If now we watch the shadows of two human beings thrown upon a wall, and see those shadows shaking hands and embracing each other, are we not justified in concluding that those images give us a true explanation of what is really taking place? and is not that exactly what I have done? have I not shown, as I proposed to do, that it is possible by examining the phenomena of Nature (the shadows of the Reality) to reach that point where we may even feel that we are listening to, or having divulged to us, some of what may be called the very thoughts of the Great Reality?

VIEW FIVE

THE PHYSICAL FILM

We have seen in former Views that the whole Phenomenal Universe, as perceived by our senses, and all intellectual thoughts or concepts based on those perceptions, are, in reality, only mists or shadows; they have no existence apart from our physical senses, and may be likened to a thin film, which at death is p.r.i.c.ked and pa.s.ses away like a scroll, leaving us face to face with the Reality. We thus seemed to grasp that all phenomena, including our Physical Egos, are but the shadows or outline of the Reality, as depicted on our limited plane of consciousness; but these phenomena, having Motion for their basis, are none the less real to us under our present outlook, limited as it is by conditioning in Time and s.p.a.ce, and we have to deal with them as realities in our everyday life. I want to make this distinction clear in the present View.

Those of us who were youngsters in the 'sixties, and were fortunate enough to be taken to that land of wonders for children, the London Polytechnic, will remember seeing what were called Professor Pepper's Ghosts. By means of a large sheet of gla.s.s on the stage, the _reflection_ of a human being (otherwise invisible), which we will call the "_unreal_," was, by the audience, seen walking alongside the people on the stage, and it was impossible to say which was the real and which the unreal. When the unreal was made to appear further back on the stage, it was apparently seen through the real figures and they appeared as ghosts, for they were seen to be transparent. If now we fix, perpendicularly on a table, a small pane of gla.s.s, and place, say, an orange in front and another orange behind it, we can arrange so that an observer, looking through the gla.s.s, sees two oranges alongside each other, one being the real and the other the unreal, and, with proper lighting and dark background, it is impossible to determine which is which, as they are both apparently real oranges. We will call the real, A, and the unreal, B; we now also introduce a human hand on both sides of the gla.s.s, and again we have apparently two real hands close to the oranges; if the real hand is now seen to try to touch the B orange, it pa.s.ses through it, but it can take up the A; and the same result is seen when the unreal hand tries to grasp them, except that it can grasp the B but not the A; it is, in fact, only the unreal that can apprehend the unreal, and the real the real.

The above simile may help some of my readers to understand how the phenomena of Nature, though having no real existence apart from our senses, have the appearance of reality to us, because both we and the whole Phenomenal Universe are the unreal of our a.n.a.logy, namely, the reflection or shadow of the Real on the physical plane. If we run against a stone wall, which is also part, with us, of the shadow, we hurt ourselves and acknowledge its existence, but to the Real it would not be an obstruction at all, it is not there. We know that this wall is not really solid, it is made up of Atoms revolving round each other but never touching, but the man in the street would give as the reason why it hurt, that it was dense, or what is called hard; if the wall were made of hay, or cotton wool, or of sunbeams, we should not suffer by running against it; in fact, the denser anything becomes, the more it shows its character of being real to our senses. If we take this as the true explanation for the Physical Universe, we are met with something quite beyond our powers of comprehension, when we try to form a conception of the all-pervading Ether; unless we may look upon it as actually a _presentation_ of the Reality itself. If we wave our hand, we can feel the obstruction of the air, but we cannot feel the Ether. We think our earth very solid, and we know it is rushing round the sun at the enormous rate of 60,000 miles per hour, but it finds no obstruction in the Ether, there is no r.e.t.a.r.dation of its velocity; and yet the study of Radio-Activity has quite lately shown us that that Ether is not only as dense as iron, or a hundred or a thousand times denser, but millions of times denser than that metal; and yet it permeates all matter like a sieve. In Sir Oliver Lodge's words, "the Ether is so dense that matter by comparison is like a gossamer or a filmy imperceptible mist." We can, therefore, by again using our "Ghost" a.n.a.logy, understand why matter cannot obstruct the Ether, or vice versa; there is no perceivable friction between them, unless, as I shall presently suggest, we may find something akin to obstruction by Matter, not to Ether itself, but to its pressure, in the phenomenon of Gravitation.

The evidence we are gradually winning from Radio-Activity seems to be leading us to the conclusion that all forms of matter are but different motions or strains in the Ether (perhaps, as Lord Kelvin thought, in the form of vortices), that the different atoms of which matter is composed are, as suggested in View Three, _apertures_ of different complexity of outline--namely, those points at which Ether is absent or its density attenuated. Have we not apparently here another example of Positive and Negative, the Invisible the Ether, as the Real, and the Visible, the Material Universe, as its Negative the Unreal, similar to our list of Positives and Negatives in View One?

Ether itself cannot be explained by any of the known dynamical laws, though it is probably the very root and cause of all of them; it is absolutely beyond our plane of perception or conception. We can only perceive certain effects of its presence when it comes into our limited world of consciousness, under the aspects of Time and s.p.a.ce--namely, in its movements, which we cla.s.sify as forms of matter and modes of energy.

It is only lately that we have been able to see clearly that the effects known to us as Light, Heat, Electricity, and Magnetism are caused by pulsations or rills of different rapidity in the Ether (this will be referred to in a later View); it is also probably the cause of what we call Gravitation, and we shall see that the action of Gravitation may, after all, be not in the direction of a pull but must be looked upon as a pushing force. Gravitation is common to all matter; in common language, every particle attracts every other particle with a force directly proportional to its ma.s.s, and inversely to the square of its distance; it is a very weak force compared with others we know, and difficult to measure except when a large ma.s.s of matter is involved. Perhaps this will be clearer, and not far from the truth, if I say that the force of Gravitation exerted between two ma.s.ses of matter compared with that which we find acting between the const.i.tuents of matter--namely, in chemical affinity, is comparable to the difference existing between the density of matter and the density of Ether.

The latest calculation of the pressure of the Ether is almost inconceivable--namely, about 25,000 tons on the square inch, or 3,600,000 tons on the square foot; it may well therefore be that, in the degree of permeability of matter by the Ether, when we can calculate it, will be found the explanation of what we call Gravitation between two ma.s.ses; they are each shielding the other from Ether pressure, in its own direction, with an obstructive force equal to its ma.s.s. The reason why the earth appears to attract us, is that it is shielding us from a certain amount of pressure in its direction; and we know that we are also apparently attracting every particle of the earth with a force proportionate to our ma.s.s, because we are, however slightly, shielding the earth from pressure in our direction; if this is the true explanation, Gravitation is a phenomenon of the Ether; it will be seen to be a movement of matter in the line of least pressure, and is therefore a push and not a pull.

Let us now come down to what we understand better concerning the subject of this View.

The question, "What is Truth?" "What is the Reality?" goes to the very root of the Riddle of the Universe. We are all trying in one direction or another to answer this question. As knowledge increases, old theories become untenable and have to be discarded, and, in their place, fresh ones are formulated to account for new phases of phenomena. There seems a general impression, among even thinking people, that scientists are wedded to, and always trying to find proofs for, their last theories, but this is not the case. The endeavour of the true seeker after truth is not so much to discover fresh facts which coincide with existing theories, as to find phenomena which cannot be explained thereby; there is indeed more joy over one fact which does not agree with preconceived theory, than over ninety-nine facts which are found to fall under that heading. In our everyday life we have become so accustomed to take for granted that what we see, hear, or feel by touch must be real, that it is difficult for the man in the street to realise that our senses woefully deceive us; that perception without knowledge often leads us astray into false concepts, and these false concepts lead us into difficulties which require fresh concepts to be formed, and these again demand further and more exact knowledge to be applied to perceived phenomena. This necessity for overcoming difficulties is the greatest incentive we have for gaining fresh knowledge of our surroundings. Owing to the fact, as already pointed out, that our sense perceptions are based upon the appreciation of change or motion, and must therefore be limited in Time and s.p.a.ce, and that the trueness of our conceptions of the Reality is dependent upon the knowledge which can be brought to bear upon those perceptions, we are forced to postulate two aspects of the Universe; one of these is what may be called the Visible, Finite, or Physical, which indeed carries the appearance of Reality to our limited senses, though it has no real existence for us apart from those senses, and the other is that which transcends our utmost conception, which we call the Invisible, the Infinite, or Spiritual.

At the outset of all investigation, we are forced to recognise that the only way we can approach conception of the Infinite is necessarily in the form of a negative, the negative applying to those things of which we have cognisance; we carry our thought to the utmost limit possible with our present knowledge, and, when we have come to a standstill, we conceive the Infinite to be not that but something further on. As our knowledge increases by small steps, that something further on seems ever to be flying from our grasp by mighty strides, until we are forced to bow our heads and recognise that we are in the presence of, though still not in sight of, the Reality. A divine impulse is ever urging us forward to greater conceptions but shattering our hopes, and giving us a feeling akin to despair, if we arrogate to ourselves a greater power of conception than we have knowledge to sustain; we have to approach the study with, indeed, that feeling of elation which the consciousness of our origin and destiny wakes within us, giving us a feeling of certainty that we are capable, in the hereafter, of attaining to the highest summit of knowledge, but with that humility, in the present, which makes us acknowledge that he who knows most knows most how little he knows. In this frame of mind let us now examine our surroundings.

We are living in a world of continuous and mult.i.tudinous changes; in fact, without change, we could have no cognisance of our surroundings, we should have no consciousness of living. We have become so accustomed to certain sensations that we are apt to take them, as facts, and scoff at the suggestion that they are non-realities. I propose, however, to show that what we perceive are not Realities, and true conception of our surroundings depends upon the knowledge which we can bring to bear to interpret the meaning of these sensations. It is only in response to our conscientious endeavours to form new concepts that knowledge is being daily revealed to us; the more we progress in Knowledge the more we see that Perception alone without Knowledge leads to false concepts, and these in their turn create fatal obstacles and difficulties to our progress towards the true appreciation of the Universe. Let me give a few examples.

In early times the Sun and the Stars were seen to revolve round the Earth once every day, and, without Knowledge of Astronomy, this was taken for granted as an absolute fact, and was looked upon as a reality; later on, however, it was noted that the Stars never changed their relative positions; this necessitated a new concept, namely, that they were fixed on the inner surface of a huge globe, which was also revolving. This false concept brought other difficulties into play, the question arose as to what was beyond the globe, and also the difficulty that, when the Stars as well as the Sun were found to be at such enormous distances from the Earth, their rates of motion were quite inconceivable. Even in the case of the Sun the motion represents over twenty-five million miles per hour, and the apparent motion of the Stars is thousands of times faster than Light travels. These insuperable difficulties were not swept away until, by the advance of Knowledge, the falsity of Conception, based only upon appearance, was made manifest, and it was seen that it was the Earth which revolved and not the Stars. Even then, owing to its supposed antagonism to what was stated in the Bible, the new Conception was opposed with great bitterness, it being long looked upon and denounced as a sacrilegious invention, and anybody daring to promulgate such a doctrine was threatened with death.

Our present Conception, that the Earth turns round on its axis once every day, and rolls in its...o...b..t round the Sun once in every year, may be called a Reality to our finite Senses; but I shall show later on that, except for the finiteness of our senses and the imperfection of our Knowledge, the Concept is not a true one. With perfect Perception and perfect Knowledge we shall see that, apart from the two limitations or modes under which our physical senses act, there can be no such thing as Motion, because the very essence of Motion is but the product of those limitations, namely, Time and s.p.a.ce.

We are so accustomed to take everything for granted, that it may perhaps seem strange to question whether it can even be a.s.serted that we have ever seen matter. Let us turn towards a common object in this room. We catch in our eyes the mult.i.tudinous impulses which are reflected from its surface under circ.u.mstances somewhat similar to those in which a cricketer "fields" a ball; he puts his hand in the way of the moving ball and catches it, and, knowing the distance of the batsman, he perhaps recognises, by the hard impact of the ball, that the batsman has strong muscles, but he cannot be said to _see_ the batsman by that impact, nor can he gain thereby any idea as to his character. So it is with objective intuition; we direct our eyes towards an object, and catch thereby rays of light reflected from that object at different angles, and, by combining all these directions, we recognise _form_, and come to the conclusion that we are looking at, say, a chair. The eye also tells us that rays are coming in greater quant.i.ty from some parts of it, and we know that those parts are _polished_; the eye again catches rays giving higher or lower frequencies of vibration, and we call that _colour_; our eyes also tell us that it intercepts certain rays reflected from other objects in the room, and we know that it is not _transparent_ to light; and those are our sight perceptions of a wooden chair.

We may go a little further by "pushing," when we know, by the amount of resistance compared with the power exerted, what force of gravity is being exerted by and on that chair, and we declare it heavy or light, but by these means we get no nearer to the knowledge of what matter is. By tests and reagents we can resolve wood into other forms which we call Carbon, Oxygen, Hydrogen, Nitrogen, &c., which, because we cannot divide them into any other known substances, we call "Elements," but we can only look at these in the same way as we are looking at the chair. Chemists, however, carry us a little further, and show us that the Elementary substances have not only their likes and dislikes, but their pa.s.sionate desires and lukewarmness to others of their ilk, and, when opportunity offers, they break up with great violence any ordinary friendship existing between them and their neighbours, and seize on their coveted prey with a strength of will surpa.s.sing anything experienced in the Organic World; and this new a.s.sociation they maintain, until they, in their turn, are dispossessed, or they encounter another substance of still greater attraction, when they leave their first love and take up new connections.

I shall touch upon the subject of what matter is later on; meanwhile let us consider how, owing to our senses being limited by the considerations of Time and s.p.a.ce, we are surrounded by inconceivables, and yet it is those very inadequate conceptions which force us to acquire Knowledge; the greatest incentive we have to pursue our investigation is, as we have seen, the fact that Perception without sufficient Knowledge leads us into difficulties. Let me give you two instances of these inconceivables. Infinite s.p.a.ce is inconceivable by us, but it is also quite as inconceivable, or perhaps even more so, to think of s.p.a.ce being limited, and yet we are forced to declare that one of these two must be true. Again, Matter is either composed of ultimate bodies, of a certain size which cannot be divided, or is infinitely divisible; both of these are inconceivable, the latter for the same reason as that of the Infinity of s.p.a.ce, and the former because it is inconceivable that the ultimate body could not be divided into two parts by a sharp edge forced between its two sides, or by a stronger force than at present holds it together; it has indeed been suggested as an explanation that, if an atom could be divided, it might cease to be matter, that its parts would have no existence, but it is difficult to conceive how two nothings can form one something.

Another example of Perception leading to a false Concept is our Sense of Pain; we apply a red-hot coal to the tip of one of our fingers and our Perception would have us believe that we feel intense pain at the point of contact, but we know this to be a false Concept, as it can be shown that the pain is only felt at the brain: there are in communication with different parts of our body small microscopical nerve threads, any of which may be severed with a pen-knife close to the base of the skull, with the result that no pain can then be felt, although the fingertip is just as much alive and is seen to be burning away.

Another example is our Sense of Hearing. A musical sound is made up of a certain number of pushes in a second, but each push is silent. It is only, as we have seen, a musical sound to our Sense when the pushes recur at intervals of not more than the sixteenth part of a second.

The p.r.o.ngs of a tuning-fork, vibrating 500 times per second, seem to be travelling very quickly, but are really only moving at the rate of 10 inches per second, or not much over half a mile per hour, when the amplitude is the hundredth part of an inch, which gives quite a loud sound.

Light is also composed of rills in the Ether, but the rill itself is not Light, it is only Light when these rills strike, with a certain enormous frequency, on a special organ adapted for, we might say, counting these frequencies, and if these frequencies fall below that certain number, or above twice that number per second, there is no Sense of Sight.

How few people have ever realised what a wonderful Counting Machine they possess in their organ of Sight! I think the best method I can adopt, to bring this clearly before you, is to take our tuning-fork, vibrating 500 times per second, a rapidity which to some will be even difficult to comprehend, and then ask you to consider how long that fork must continue to vibrate before it has accomplished the full number of frequencies, which must necessarily impinge upon the eye in one second of time, before the phenomenon of sight becomes possible.

That tuning-fork would have not only to continue its vibrations without diminution for seconds, minutes, hours, weeks, months, years, or hundreds of years, but for 30,000 years before it has accomplished the full number of pulsations which, as Ether waves, must strike the eye in one second of time, to give the impression of Light; the calculation is easy, the rills of Red Light are so small that 40,000 of these only cover one inch of length, and light travels 186,000 miles per second. If therefore the number of inches in 186,000 miles are multiplied by the 40,000, and the product is divided by the 500 times which the tuning-fork vibrates in one second, you have the number of seconds that tuning-fork must vibrate, before it has completed the number of impacts which, in one second of time, must fall on our retina to give us the impression of red light; and that tuning-fork would have to vibrate nearly twice as long, say 50,000 years, to reach the number of impulses which strike the eye in one second of time and give the impression of violet light; and between these two limits are situated the colours--Orange, Yellow, Green, Blue, and Indigo.

What a marvellous sense then is Sight, when we find that, not only can it grasp these innumerable vibrations, but can actually differentiate colours, appreciating as a different colour each increase of about one-tenth in these mult.i.tudinous frequencies; and it is princ.i.p.ally by means of this Sense of Sight that we gain a knowledge of what is happening around us. And yet what strides we have made in the last two hundred years to improve upon that instrument! With all its wonderful capabilities, we shall see later on that the eye is a very imperfect instrument for seeing very small objects, or even large objects when at a great distance. With the present compound Microscope, only developed in the last hundred years, and its apochromatic lenses, invented only in the last forty years, we are able to see and photograph objects of a minuteness immeasurably beyond the power of the human eye, and, with our telescopes, we can see and photograph stars far beyond the possibility of vision by the unaided eye; and yet, by the stellar spectroscope, we are actually able to examine and identify the very atoms of which that distant star is composed, or rather was composed hundreds of thousands of years ago; we can compare those atoms with the same atoms in our laboratories, and we find that, though the former are hundreds of thousands of years older than the latter, they show absolutely no signs of wear or loss of energy, though they have been for that enormous time, and are still, pulsating at the rate of not only millions but billions of times per second; and though the pulsations they emit have travelled across such a vast depth of s.p.a.ce that the mind cannot even imagine the distance, there has not been any diminution in the numbers of pulsations per second, nor the slightest slowing down of the rate of flight at which they started on their journey from that far-off world. If there had been the _slightest_ change we could detect it at once by means of the Spectroscope.

With another instrument we are able, not only to hear but to converse audibly, as long as we like, with another human being a thousand miles away, who is also sitting comfortably in his own arm-chair and speaking to us with as much freedom as though we were both in the same room. With another instrument we can go further, and exchange thoughts, in a few seconds, with a being on the other side of the world, by means of a thin wire that is itself fixed, and does not move, and we have lately invented another means by which we can do the same, over several thousands of miles, without even a connecting wire.

With another instrument we have gone far beyond the facility with which the Printing press enabled us to communicate our thoughts to our fellow human beings, we can actually imprint our very words and laughter upon a wax cylinder and send it to the antipodes, and our friends there, with a similar instrument, can not only hear and recognise our very voice, but can make that voice repeat our thoughts audibly, to a thousand others at the same time, and can repeat that process for hundreds of times without exhausting that voice. With another instrument we can depict on a film, not only the images of our friends but their very actions, which may also be sent to any distance, and the persons, thereon depicted, may be seen by their relatives alive and going about their everyday employments, with every movement exact to life. We can cross the Ocean against the wind and waves by means of harnessed sunbeams, without any exertion of our own, at the rate of an express train, which train, by the by, is also moved by the same means; we can dive to the bottom of the sea and journey there for hours, in perfect safety, without coming to the surface, and we are even developing wings, or their equivalent, which from immemorial tradition we were not to possess before we had finished doing our duty properly in this world and had gained admission to the next.

We can do all these things, but how ignorant we still are in the commonest doings of Nature! By giving up our whole lifetime, and spending millions of pounds, we could never make a grain of wheat or an acorn, and wherever we turn we find ourselves confronted with mysteries beyond our power to explain from a finite material standpoint; even in material vibrations we meet a mystery almost beyond our power to comprehend. Take for instance those small insects, of the family of Gra.s.shoppers, which make the primaeval woods of Central America give out a noise like the roaring of the sea, a wondrous sound never to be forgotten by those who have heard it. By means of a kind of rasp one of these insects creates a sound which Darwin states can be heard to the distance of one mile: these insects weigh less than the hundredth part of an ounce, and the instrument by which the noise is made, weighs much less than one-tenth of the total insect; it is less therefore than one thousandth part of an ounce in weight, and yet it is found, by calculation, that this small instrument is actually able to move at the enormous rate of a thousand vibrations per second and keep in motion for hours, from five to ten million tons of matter, and it does this so powerfully that every particle of that enormous bulk of matter gives out a sound audible to our ears. But even these millions of tons are not its limit of action, for we know that these vibrations must go on until, in the end, every particle of matter connected with this earth has been affected by each of those vibrations.

All our difficulties of understanding the true meaning of these and other phenomena around us are, as I have already pointed out, caused by our inability to recognise that vibration or motion has no reality, it is a pseudo-conception arising from the fact that our senses are entirely dependent upon the two modes or limitations, Time and s.p.a.ce, for their very action, and that, as conceptional knowledge is based upon perceptional knowledge, our very consciousness of living is also dependent upon these same limitations. We have seen that Motion is nothing but the product of these two modes of perceptions, and, in my next Views, I shall examine these elusive limitations, these two mysteries of Time and s.p.a.ce, the forever and the never-ending; I shall trace them to the utmost limit of our conception, and try to gain thereby a clearer insight into the fact, not only that the whole Physical Universe is but a transient and s.p.a.ce-limited phenomenon, a thin film which our senses have erected and which divides us from the Reality, but that, if our power of _introspection_ were fully developed, we should know that the Reality is nearer and dearer to us, and has much more to do with us, even in this life, than has the physical.

VIEW SIX

s.p.a.cE

We have seen that our very thoughts, and therefore consciousness of living, are limited by Time and s.p.a.ce, but we cannot with the utmost endeavour conceive a limit to Time and s.p.a.ce; they are two twin sisters, alike in many respects but different in others, and we shall realise later on that they are readily interchangeable. The sensuous aspect of Motion is, as we have seen, the time that an object takes to go over a certain s.p.a.ce--namely, what is called the rate at which it pa.s.ses from one point to another, and we cannot imagine Motion unless it contains both of these modes in however small a quant.i.ty; we may have the greatest imaginable s.p.a.ce traversed in a moment of time, or the smallest imaginable s.p.a.ce covered in what may be called, for want of a better word, an eternity, but we still have to postulate what we call Motion; this, of course, follows from the fact that our thoughts require both these modes for forming concepts. If we compare our conception of Matter with that of Time and s.p.a.ce, we see that the two latter are not separately the object of any sense, but are the modes or conditions under which all our senses act, to a greater or less degree, and these conditions cannot therefore carry the same impression of objectivity to our senses as Matter does, except perhaps in the sense that all physical phenomena are simply motion, and motion is the product of both of these limitations but not of either of them separately.

If we a.n.a.lyse our conceptions of Time and s.p.a.ce we seem forced to postulate that they are both infinitely divisible and infinitely extensible; they are both what is called continuous and not discrete, we cannot conceive any minimum in their division; both duration in Time and extension in s.p.a.ce can be reduced, as it were, to a mathematical point; nor can we conceive any maximum in either duration or extension. They are both therefore comprised in every conception possible to our consciousness; all parts of Time are time and all parts of s.p.a.ce are s.p.a.ce; there are no holes, as it were, in s.p.a.ce which are not s.p.a.ce, nor intervals in Time which are not time, they are both complete units; s.p.a.ce cannot be limited except by s.p.a.ce, and Time cannot be limited except by time. So far they are alike, but, on the other hand, s.p.a.ce is comprised of three dimensions--namely, length, breadth, and depth, whereas Time has the appearance to us of comprising one dimension only--namely, length.

Under our present conditions we can only think of one finite subject at a time, and, at that moment, all other subjects are cancelled. We can therefore only think of points in Time and s.p.a.ce as situated beyond, or in front of, other fixed points, which again must be followed by other points; we cannot fix a point in either so as to exclude the thought of a point beyond; we can only in fact examine them in a form of finite sequences.

The Idea of Infinity, which we shall refer to in a later View and show to be a false conception, is therefore a necessary result of the limitation of our thoughts; our physical Ego cannot conceive beyond the Finite as long as we are conscious of living under present conditions. With every act of perception by our senses, we have therefore not only intuition of the Visible or Finite, but we become at the same moment aware of an Invisible Infinite beyond. Time appears to us as an inconceivable, intangible something, which gives us the impression of movement without anything that moves it. s.p.a.ce is an omnipresent, intangible, inconceivable nothing, outside of which nothing which has existence can be even thought to exist. Let us now try and get an insight into what we mean by perception of distance in s.p.a.ce.

The appreciation of distance depends upon what is called _parallax_, or the apparent displacement of projectment of an object when seen by our two eyes separately. If you hold up a finger and look at it, with each eye separately, you will see that the finger is projected by each eye on to a different part of the background; the angle which the lines of sight, from each eye, make when they meet at the object, is called the angle of parallax, and the further the object is away the smaller that angle becomes; it is, in fact, the angle subtended, at the object, by the distance between the two eyes. As the object is brought nearer the eyes have to be inclined inwards to impinge on that object; the appreciation of distance then, in our sense of sight, is dependent upon our perception of the amount of inclination of those two lines of sight, and is therefore an acquired knowledge. The distance between the eyes is about 2-1/2 inches, and this is a very short base line upon which to estimate distance; in fact, without the help of perspective and known dimensions of surrounding objects, it is doubtful if anyone could by its means estimate distance beyond a few hundred yards. The object would, of course, also have to be an unknown one, as, otherwise, the converse of the above comes into play, and the distance could be estimated by the angle which the known diameter of the object subtends at the eye; but this necessitates the size of the object being known beforehand and the employment of perspective.

We can extend our perception of distances by, ourselves, moving from one place to another, gaining thereby a longer base line, and noting the displacement of projection of the object on a distant background; by that means, distance up to several miles can probably be appreciated. But, when we try to determine the distance of, say, the Moon (240,000 miles away), we are helpless, especially as we have no marked background, except in the case of occultations of the Sun or Stars. But the Astronomer at once comes to our aid; a distance of several miles is carefully measured on a level plane, and, by placing telescopes at the extremities of that known line, we can mark the inclination of those telescopes to each other when focussed upon a particular mountain peak on the moon; by this means we know the angle of parallax (180 less the sum of the two angles of inclination), and, from this and our known length of base line, we can calculate the distance. When however we go a step further and attempt to calculate the distance of the Sun (93,000,000 miles), we find our last base line again absolutely inadequate. But the astronomer helps us again; we now separate our two telescopic eyes by the whole diameter of the earth (7900 miles); this is accomplished by taking from the Equator two simultaneous observations of the Sun, at its rising and setting; for when the Sun is setting, at say the Equinox, it is at that moment rising at exactly the other side of the earth; the inclination of the two telescopes, directed to a certain point on the Sun, will now give the distance approximately, though even this base line is too short for exact.i.tude. When however we attempt to go still further and try to ascertain the distance of stars, which are a million times further off than the Sun, such a base line is quite out of the question. How then can we get a base line for our telescopes longer than the whole width of the earth? The Astronomer again provides the means. The earth takes one year to complete its vast orbit round the sun, and the diameter of that path is 186,000,000 miles. This is made our new base line for separating our telescopes; an observation of a star is taken, say, to-day, and after waiting six months, to enable the earth to reach the other extremity of its vast orbit, another observation is taken, and yet it is found, as we shall see later on, that the distance of the nearest fixed star is so _stupendous_ that even this base line, of 186,000,000 miles, shows absolutely no inclination between the two telescopes except in about a dozen cases, and even in those the angle of parallax, perceivable, is so minute that no reliable distance can be calculated; we can only say that the star is at least as far away as a certain distance, but it may be much farther.

Let us now try by other means to get a clearer insight into the subject of this View, by tracing s.p.a.ce to the utmost limit of human conception. I think the best method I can adopt will be to take you, in imagination, for a journey as far as is possible by means of the best instruments at our disposal.

We will start outwards from the Sun, and glance on our way at the worlds involved in the Solar System. Let us first understand what are the dimensions of our central Luminary. The distance of the Moon from the Earth is 240,000 miles, but the dimensions of the Sun are so great that, were the centre of the Sun placed where the centre of the Earth is, the surface of the Sun would not only extend as far as the Moon, but as far again on the other side, and that would give the radius only of the enormous circ.u.mference of the Sun; another way to understand its size is, to remember that, light travelling 186,000 miles per second, would actually take five seconds to go across its disc. Let us now start outward from this vast ma.s.s. The first world we meet is the little planet Mercury, only 3000 miles in diameter, revolving round the Sun at a distance of 36 million miles. We next come upon Venus, at a distance of 67 million miles. She is only 400 miles smaller in diameter than our Earth, and, with the dense atmosphere with which she is surrounded, animal and vegetable life similar to that on our Earth would be possible. Continuing our course, we arrive at our Earth, situated 93 million miles away from the Sun.

Still speeding on, a further 50 million miles brings us to Mars, with a diameter of nearly 5000 miles, and accompanied by two miniature moons. The sight of this planet in a good instrument is most interesting. Ocean beds and continents are visible, and the telescope shows large tracts of snow, though not necessarily formed from water (perhaps carbonic dioxide), surrounding its polar regions, which increase considerably during the winter, and decrease during the summer seasons on that planet; but there are no ca.n.a.ls! The fact that our largest and best telescopes failed to show these imaginary ca.n.a.ls, was an insurmountable barrier to the advocates of these markings, but the "Ca.n.a.lites" made their contention ridiculous when they actually suggested that the reason for this failure to perceive them was that our telescopes were too large to see such small markings! How such a statement could have been made is incomprehensible on any supposition, as everybody knows that the whole use of size, or what is called aperture, in a telescope, is to help us to see more clearly small and faint markings.

The distances we now have to travel become so great that I shall not attempt to give them; you can, however, form an idea of the tremendous s.p.a.ces we are traversing when you consider that each successive planet is nearly double as far from the Sun as the preceding one.

In the place where, by Bode's law, we should expect to have found the next world, we find a group of small planets, ranging in size from about 200 miles in diameter down to only a few hundred yards. They pa.s.s through nearly the same point once in each of their periods of revolution round the Sun, and it has been suggested that they are fragments of a great globe rent asunder by some mighty catastrophe; over 400 of these little worlds have been discovered and have received names, or are known under certain numbers.

We now continue our voyage over the next huge s.p.a.ce and arrive at Jupiter, the largest and grandest of the planets. This world is more than 1000 times larger than our Earth, its circ.u.mference being actually greater than the distance from the Earth to the Moon. It has seven moons, and its year is about twelve times as long as ours.

Pursuing our journey, we next come to Saturn. It is nearly as large as Jupiter, and has a huge ring of planetary matter revolving round it in addition to seven moons. Further and further we go, and the planets behind us are disappearing, and even the Sun is dwindling down to a mere speck; still we hurry on, and at last alight on another planet, Ura.n.u.s, about sixty times larger than our Earth; we see moons in attendance, but they have scarcely any light to reflect; the Sun is only a star now; but we must hasten on deeper and deeper into s.p.a.ce.

We shall again, as formerly, have to go nearly as far beyond the last planet as that planet is from the Sun. The mind cannot grasp these huge distances. Still we travel on to the last planet, Neptune, revolving on its lonely orbit; sunk so deep into s.p.a.ce that, though it rushes round the Sun at the rate of 22,000 miles per hour, it takes 164 of our years to complete one revolution. Now let us look back from this remote point. What do we see? One planet only, Ura.n.u.s, is visible to the unaided eye; the giant planets, Jupiter and Saturn, have disappeared, and the Sun itself is now only a star; practically no heat, no light, all is darkness in this solitary world; the Sun is 1000 times smaller than we see it from the earth, and gives, therefore, only one-thousandth part of its heat and light. Thus far have we gone, and, standing there at the enormous distance of 3,000,000,000 miles from our starting-point, we can begin to comprehend the vast limits of the solar system; we can begin to understand the ways of this mighty family of planets and satellites.

But let us not set up too small a standard whereby to measure the Infinity of s.p.a.ce. We shall find, as we go on, that this stupendous system is but an infinitesimal part of the whole universe.

Let us now look forward along the path we are to take. We are standing on the outermost part of our Solar System, and there is no other planet towards which we can wing our flight; but all around are mult.i.tudes of stars, some shining with a brightness almost equal to what our Sun appears to give forth at that great distance, others hardly visible, but the smallest telescope increases their number enormously, and presents to our mind the appalling phantom of _immensity_ in all its terror, standing there to withstand our next great step. How are we to continue on our journey when our very senses seem paralysed by this obstruction, and even imagination is powerless from utter loneliness? One guide only is there to help us, the messenger which flits from star to star, universe to universe; Light it is which will help us to appreciate even these bottomless depths.

Now, Light travels 186,000 miles per second, or 12 million miles every minute of time. It therefore takes only about four hours to traverse the huge distance between our Sun and Neptune, where we are now supposed to be standing; but to leap across the s.p.a.ce separating us from the nearest star, it would require many years for Light, travelling at 186,000 miles every second of that time, to span the distance. There are, in fact, only fifteen stars in the whole heaven that could be reached, on the wings of Light, in sixteen years!