11월
15
2022
0
Astronomy 2022: Major Skywatching Events For The Coming Year
At higher noon in Hawaii when the Sun is straight overhead, the shadows of objects evenly line up to make it appear as if there are no shadows becoming cast,...
apollo
Everything you can do with your computer.
openzem
The development of computers is too fast. Computers have changed everything about us. I can work at home and play games at home.