RT @physicsJ: All light from space is refracted by our atmosphere. Stars twinkle because they are very far and appear very small in our sky… 0 atbildes
Pēteris Krišjānis (2019-07-10 10:08:15) |
RT @physicsJ: All light from space is refracted by our atmosphere. Stars twinkle because they are very far and appear very small in our sky… |