Recent content by lanovia

The solar eclipse (semi) is going to occur at Asia (include Russian, China, Asia East, Việt Nam) ...

I had the answers for those questions. Thanks russ_watters ... Your site is very nice!

When we stir a glass or water, the dregs move into the middle of glass. Why?

Hi everybody How are you? I am a Vietnamese student. I hope to find this forum because I want to development my lovely subject "physics." Here are some question: 1. Why the sky is blue, and why the ocean is blue, too. 2. Are there a double rainbow, and how can we see a full...