By Archimedes Principle, a helium balloon floats upward because the weight of the balloon is less than the weight of the air it displaces. The volume of air displaced by a tanker truck remains constant regardless of whether it contains helium or a vacuum. Since helium weighs more than nothing, a truck filled with helium weighs more than a truck filled with nothing.
BE THIS GUY almost 4 years ago
Moonkey Premium Member almost 4 years ago
That is one big knife.