Recently, I was trying to learn how to spear northern pike through a hole in the ice. The weapon was a heavy, five-foot-long iron trident, except with seven tines instead of three. You start with the tines already in the water before you ever see a fish, so to minimize splash, and you hold the spear absolutely vertical. When the moment comes, you don’t throw the spear so much as release it. Using the slightest thrust of your thumb and forefinger. As if releasing a paper airplane.