Hi Double-A True his ruler,and clock stays relative in size,but one
effect that is proven by our great accelerators(not around in Einstien's
time) inertia goes up,and that means even though his scale still can
read he weighs 180 lb going at 99.999999999 of 'c' he now weighs
70,0000 times his rest mass. He died when his space ship past the speed
of 73% of 'c' 73% of 'c' is my personal figure The
figure of 70,000 times heavier came from the Cern lab. Bert