Huge radio-controlled cardboard airplane made at home with cereal boxes, this time the only thing not made with cardboard is the fuselage, since this kind of cardboard is not strong enough to stand ...

How to make a glider with cardboard ******************************************************************** Subscribe: This time ...

The helicopter sex position is athletic and not for the faint of heart — but you can also try easier variations like the ...

It’s energy...in motion!Hello parents, teachers and students! Today’s experiment is all about potential and kinetic energy.