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Re: March for Women's Lives: msg#01244culture.sf.killerbs
At 10:42 PM 4/29/04, Julia Thompson wrote: But I'd much rather give my kid a magnifying glass than let him spread If you do that (I am not making a recommendation here), just be sure it is a genuine magnifying _glass_, as many of the plastic ones I have experimented with¹ appear to not pass enough IR to get something¹ at the focal point hot enough to burn. Of course, this introduces safety issues of its own, such as what may happen if he drops it on a hard surface and it shatters . . . _____ ¹FWIW, my experiments generally involved materials such as paper or dry leaves . . . -- Ronn! :) |
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