When you’re driving your car, you’re probably regularly looking at the speedometer to make sure you comply with the local speed limits. The method by which it works is simple enough: ...

Infrared spectroscopy (IR spectroscopy) is an optical technique that detects molecular bond vibrations and rotations upon absorption of infrared light. Because different chemical functional groups ...

Sometimes, the factory speedometer isn’t an option. Maybe you’re trying different wheel and tire combinations that throw off calibration. Maybe the gauge cluster finally gave up the ghost. Or maybe ...