Re: About planetary gravity
Very simple way of explaining density...
Cannonball... very heavy chunk of metal right? So what happens when you drop it in a pool of mercury... mercury is a liquid, and cannonballs are pretty damn heavy...
easiest practical explanation of density i've ever seen
In Russia, a 122 year old man has passed away, he credited his long life to abtaining from alcohol, tobacco and women. His last words were "I've made a huge mistake."