tag:blogger.com,1999:blog-5088860151651047897.post8957744448400266772..comments2024-03-25T10:56:59.380-04:00Comments on Jacobs Physics: Cheap-arse demonstrations: Goldfish bowl as refraction tankGreg Jacobshttp://www.blogger.com/profile/03854009948036330746noreply@blogger.comBlogger2125tag:blogger.com,1999:blog-5088860151651047897.post-31745340674339878142012-03-27T22:49:42.501-04:002012-03-27T22:49:42.501-04:00Green lasers are pretty cheap now. Don't buy ...Green lasers are pretty cheap now. Don't buy from standard science supply houses, google around for a deal. The green laser is well worth the investment. <br /><br />GCJGreg Jacobshttps://www.blogger.com/profile/03854009948036330746noreply@blogger.comtag:blogger.com,1999:blog-5088860151651047897.post-14084830546928899572012-03-27T18:47:03.701-04:002012-03-27T18:47:03.701-04:00Congratulations, you have earned 10 points to your...Congratulations, you have earned 10 points to your nerdity score. Coincidently, yes I know how to construct a perpendicular with a compass, and did so doing this very demonstration (or reminded to students how to construct one).<br /><br />Out of curiosity, I was thinking about purchasing a green laser for next year (all I have is a red one right now). Do you think it is worth purchasing or should I focus my budget (meek as it is) on other supplies I need (such as materials for fluid mechanics.Mr. Adam B. Kellamhttps://www.blogger.com/profile/07520550441007568844noreply@blogger.com