PROOF OF EXISTENCE OF A SUPRA-WORLD 1 1 1 



this radius contains no masses but the visible stars, 

 about 100 million in number, and possessing an aggre- 

 gate mass of 10 42 grammes. A strange body falling 

 from infinite space into the outskirts of this system 

 will acquire a velocity of 



2 x 6-66 x 1Q- 8 x 10 ia 



centimetres per second, or 36 '5 x 10 5 cm. per second, 

 or 3G*5 km. or 22 miles per second about the 

 speed of the earth, and quite a reasonable and 

 usual speed. If space is universally filled with 

 stars to the same extent as our stellar system, 

 there will be no free fall from infinite space, and 

 no speed to be got from the attraction of our par- 

 ticular galaxy. Yet speeds of the same order will 

 be generated under the force of attraction of the 

 various suns, and nothing will be altered by 

 adding galaxies upon galaxies, so long as it is 

 done consistently and uniformly throughout infinite 

 space. But supposing that we stop at a distance of 

 10 26 cm., increasing the radius 10,000 times, then 

 we increase the mass a billion times, the potential 

 at the limit 100 million times, and the resulting 

 speed 10,000 times. Thus the speed will be 225,000 

 miles per second. This speed is some 40,000 miles 

 per second above that of light, and therefore, by 

 all accounts, quite impossible. The result will bo 

 that all foreign bodies will enter our system with 



