But first, a demo! Click the image to see the full-size (potato-quality) clip: Winter is coming. I normally visit my club’s 3D archery range either early in the morning before work, or in the evening after, but with the lengthening dark it’s getting harder and harder to spot my arrows in the targets1. Lighted nocks to the rescue! Component-wise, a lighted nock is just an LED and a battery inserted in an ordinary transparent nock, but the trick is getting the LED to turn on only upon relea...