; User command example CtrlAlt1 = usercmd:1
In science, buoyancy (also known as upthrust) is an upward force exerted by a fluid that opposes the weight of an immersed object. The density, or more precisely, the volumetric mass density, of a substance is its mass per unit volume.
; User command example CtrlAlt1 = usercmd:1 total commander wincmd.key
"Inasmuch as we can capture that wonder… that pure excitement about the complexity and beauty of the world. That will be how much we actually create kids that love science. That love to learn."
―David Gagnon
