| Author | Comment | Last activity | Moderation | ||
|---|---|---|---|---|---|
| amysoyka | "http://home.hiroshima-u.ac.jp/er/EV_EI_A(2)_07.html ...If you scroll down in the page linked above, it tells you the different refractive indexes ..." | Read more » | about 10 years ago | |||
| amysoyka | "@el_tonio Your image has me thinking it might be worth using a piece of metal piping & turning it into an electromagnet. Also, found this art..." | Read more » | about 10 years ago |