PUBLIC MARKS from rax262 with tag science

Our Boing Boing Gadgets editor, Joel Johnson, wrote an article for the magic-themed issue of MAKE on how to build a fireball shooter. Today, MAKE's video producer, Kip Kay has a video on the awesome shooter.

May 2004 has brought almost record breaking rainfall. This has led to questions about how much nitrogen was lost from the soil. More to the point, the real question being asked is, "How much extra fertilizer should I apply to keep from losing yield?" This question cannot be answered precisely, since many variables enter the picture, but we can at least start to make some educated guesses.