What are some natural ingredients one might stumble upon in the wilderness that you could potentially mix together (sans laboratory) to create a flash or explosion?
[more inside]
posted by np312
on Dec 3, 2012 -
12 answers
Resourceful mefites, can you help me crank my hand crank radio with a stationary bicycle or elliptical trainer?
[more inside]
posted by umbú
on Aug 28, 2012 -
8 answers
Jerry-rigging a hot plate. Help me (a total beginner at electricity) not get myself killed, and maybe even learn something.
[more inside]
posted by Rykey
on Jun 27, 2012 -
11 answers
Physics question: A hotel room. An ice bucket. An air conditioner shooting up cold air. A fleece blanket. Put the fleece blanket over the bucket to trap the air. Hypothesis: The fleece blanket will trap the cool air around the bucket, keeping it colder longer. OR The fleece blanket will do what it always does, make things warmer. Which will be?
[more inside]
posted by amethysts
on Jul 16, 2010 -
21 answers
How to safely moderate my radiator that has no knobs? My studio apartment's heat is controlled by the landlord, and is just too hot.
[more inside]
posted by ecks
on Nov 5, 2007 -
20 answers
So our garage door opener was randomly opening and I think I've solved it, but the real question is, how do I test it without leaving ourselves open to the world?
[more inside]
posted by advicepig
on Sep 5, 2007 -
13 answers
