In Insert Coin, we look at an exciting new tech project that requires funding before it can hit production. If you'd like to pitch a project, please send us a tip with "Insert Coin" as the subject line. Spectrometers are a pretty invaluable piece of lab equipment. They make it rather simple to identify substances by analyzing the light that they absorb. Problem is, for the hobby scientist, they typically cost thousands of dollars. Jeffrey Yoo Warren's latest