Everybody wants to bring in the New Year with a bang but be sure to be careful! Creating your own fireworks display can teach you not only a lot about physics, but a lot about medicine, too. If explosives are a little bit scary (and they should be!), you can always make a resolution to just use compressed air instead during 2003. If you do it right, you can, er, kill two birds with one stone and also get those more frequent servings of fruits and vegetables you know you need. Then again, you might be less of a doer and more of a dreamer…