Why does a tiny rock sink to the bottom of a lake, while a giant boat can stay afloat? When any object hits water, it displaces some amount of water. To float, the object needs to be lighter than the ...

Release anonymous doubts and cares on Adrift, a site that casts your thoughts out to sea in the form of a digital paper boat. So far, 684 boats are sailing around on the website. You can click on any ...