Fedor Emelianenko
the hardest pitch ever was 106 mph
elbows -.-
The hardest challenge I've ever faced is life.
cheats to the hardest game ever
brainteasers
Hardest material ever FOUND so far is still diamond because it's produced by nature. Nano-materials are proven to be harder than any diamond but since it's man made it can not be "found". It's engineered. So the question for this nano variants should be - how hard do you need it to be ?
Diamond. a very hard material that is the hardest substance ever, or at least discover to be the hardest substance on EARTH THAT IS
I had not given a hardest interview like this one you give
E = mc2
What is the riddle
Diamond is the hardest natural mineral; nothing is harder.
The hardest element is chromium, which is in group 6.