Hey, Vsauce, Michael here! Down here. But which way is down? And how much does down weigh? Well, down weighs about 1/100 of a g/cm3 . It is light, and airy, which makes it a great source of insulation and buoyancy for waterbirds. But if you let go of down, it falls down. So that's which way down is, it's the direction that gravity is pulling everything. Now for someone on the other side of the Earth, my down is their up, but where are falling things going? Why do things fall? Are they being pushed or pulled? Or, is it because of TIME TRAVEL.
𝓜𝔂 𝓭𝓮𝓪𝓻𝓮𝓼𝓽 𝓫𝓻𝓸𝓽𝓱𝓮𝓻, 𝓽𝓸𝓭𝓪𝔂 𝓶𝓪𝓻𝓴𝓼 𝓽𝓱𝓮 8𝓽𝓱 𝔂𝓮𝓪𝓻 𝔀𝓮 𝓱𝓪𝓿𝓮 𝓱𝓪𝓭 𝔀𝓲𝓽𝓱𝓸𝓾𝓽 𝓿𝓪𝓻𝓲𝓮𝓽𝔂. 𝓦𝓮 𝓶𝓪𝔂 𝓷𝓸𝓽 𝓫𝓮 𝓪𝓫𝓵𝓮 𝓽𝓸 𝓮𝓷𝓭𝓾𝓻𝓮. 𝓟𝓵𝓮𝓪𝓼𝓮 𝓹𝓻𝓪𝔂 𝓯𝓸𝓻 𝓸𝓾𝓻 𝓼𝓪𝓵𝓿𝓪𝓽𝓲𝓸𝓷. .