RT @ThingsWork: This is a simple visualization behind the formula to calculate the surface of a sphere https://t.co/oOzhKsUbF1 0 atbildes
bokmelders (2016-12-19 06:23:03) |
RT @ThingsWork: This is a simple visualization behind the formula to calculate the surface of a sphere https://t.co/oOzhKsUbF1 |