FreedomFighter
New member
My friend and I are arguing over the difference between iron weights vs. rubber weights. Ive always lifted iron and tried a differewnt gym this evening(one w/rubber weights). The rubber weights feel about 20% lighter without a doubt. he claims there is no difference because a pound of weight is a pound of weight no matter what. I cant explain it, maybe it has something to do with gravity but the rubber weights just doesnt give me the pump or stretch that an iron weight has (and no its not in my head caused I tried rubber wts. 3 years ago for a week with the same result). So whats the deal?? Why is it like this? any physics majors here? Anyone agree?