TAPR's John Ackermann N8UR details this little Arduino based device - he calls it a stopwatch - that will measure time to the trillionths of a second. Why does anyone need that, when, according to Star Trek, it's possible to give verbal start-stop commands controlling spacecraft going faster than light? Aaaaand... Go! But we digress. 

This is a fully assembled device, not a kit (Gary will make that mistake in the intro).