Bisbee daily review., 1921-04-17

without proving It. Anu someone us covered the fourth dimension and no one living can demonstrate it.
 Now. Einstein has discovered rela- tivity. Put plainly, that means that all dimensions as well as time are de- termined by motion
 He established this principle by first standardizing all clocks with ref erence to the velocity of light, which is the highest known velocity and equals about 1S6,O0O miles a second.
 He then proved by plain figuring that one of these clocks would regis ter the hours in the ratio of to faster than a like clock on the earth.
 Then he figured that If a mile on the earth should be measured off in comparison to the speed of light, this same mile, if taken to the sun, would measure only three-fourths the dis tance of a sun mile. determined in he same way.
 Why" I asked him.
 "Because," he answered, while the earth is moving mile by earth time. as indicated by my clock before re- ferred to, it only can move three fourths as far as the sun will move by sun time" ~
 ''For example?'' I inquired.
 Well" said Dr. Einstein, suppose a man had been present at the close of the battle of Waterloo. Suppose he had been moved away from the battlefield at Q speed greater than the speed of light. He would soon catch up with the light particles which had emanated from the battle and could witness the entire event naturally, only he would see it back ward
 Now, suppose he had been at a sufficient distance from the battlefield when the fray closed and had been moved toward it at a rate faster than the velocity of light. He would pick up the light particles in reverse order and see the battle as it occurred.
 Suppose he moved up toward the battlefield at speed only little less than that of light? The picture of the battle would then present itself as transpiring at an extremely slow rate"
 These illusions" said I, "are often produced on the same principle by tricks of the moving picture camera, are they not?"
 Yes, exactly" he answered, add. ing, 'manifestly time for the moving man, and distances also, would be de- termined by his rate of translation with reference to the movements on the battlefield
 Tt happens further. that the speed of light is probably the highest ve, locity of movement which the exist ing human mind can grasp, even by the aid of instruments. If light should suddenly begin to travel faster or slower than 1S6,0OO miles a second, we couldn't see. at all.
 Speeds greater than that of light would escape any measurement in terms of time and run our past his tory far into the future.
 The speed of light is the basis for all figures"
 Now what does this all amount to?
 We'll, time and distance and space have always been guessed at by meta physicians and have been thought but human illusions produced in the mind by imperfect knowledge.
 Now, if Einstein has actually prov ed these things by mathematical com putation, he may not have done much for humanity in the way of iInmed- fate advance, but he has come closer than any toward ending the age-long controversy between those who have held that all is matter and those who have claimed there is nothing but Omnipotence of mind
 Einstein has discovered substance and relativity and there you are.
 The scientist is little bald in front but with bristly. pompadour and black, piercing eyes. His moustache points turn downward, crescent shape He is normal, natural. polished.
 He is 42, and is the youngest man ever elected to the Berlin Academy of