tag:blogger.com,1999:blog-7688668567466252214.post2759759192704961595..comments2009-11-15T22:47:11.849-08:00Comments on Room 20: How to make a calculator work with a homemade batteryMiss Lucashttp://www.blogger.com/profile/15742743403402488304noreply@blogger.comBlogger1125tag:blogger.com,1999:blog-7688668567466252214.post-42686500127505693642009-11-15T21:33:47.380-08:002009-11-15T21:33:47.380-08:00Wow, what a great experiment. When I first read y...Wow, what a great experiment. When I first read your post I thought "no way will this work!" I think you have written a great post - I love the photo's and illustrations.<br />Miss S.Miss S.http://room25eps.blogspot.comnoreply@blogger.com