- Joined
- Nov 13, 2010
- Messages
- 1
- Points
- 0
Today in science class, my teacher was using a laser to point to the different elements on the periodic table. I was noticing that you couldn't see the light beam going to the wall, only when it hit the wall.
Today in science class, my teacher was using a laser to point to the different elements on the periodic table. I was noticing that you couldn't see the light beam going to the wall, only when it hit the wall.
Today in science class, my teacher was using a laser to point to the different elements on the periodic table. I was noticing that you couldn't see the light beam going to the wall, only when it hit the wall.