https://blog.danallan.com/tags/sciencedemo/ Recent content in Sciencedemo on Dan Allan Hugo en-us daniel.b.allan@gmail.com (Daniel Allan) daniel.b.allan@gmail.com (Daniel Allan) Wed, 25 Nov 2020 00:00:00 +0000 https://blog.danallan.com/posts/2020-11-25-soap-bubbles/ Wed, 25 Nov 2020 00:00:00 +0000daniel.b.allan@gmail.com (Daniel Allan) https://blog.danallan.com/posts/2020-11-25-soap-bubbles/ When Dawn changed their proprietary soap recipe in 1996, making great bubble soap at home became less straightforward. https://blog.danallan.com/posts/2010-10-27-tug-of-war/ Wed, 27 Oct 2010 00:00:00 +0000daniel.b.allan@gmail.com (Daniel Allan) https://blog.danallan.com/posts/2010-10-27-tug-of-war/ Giving Baltimore City high school students hands-on experience with mechanical advantage https://blog.danallan.com/posts/2008-09-13-exploding-popsicle-sticks/ Sat, 13 Sep 2008 00:00:00 +0000daniel.b.allan@gmail.com (Daniel Allan) https://blog.danallan.com/posts/2008-09-13-exploding-popsicle-sticks/ Four Popsicle sticks can be bent together to form a spring-loaded projectile, perfect for entertaining bored children.