Oh, another bloody Star Wars T-shirt I'm going to have to buy. Ever had a cat bring home a dead thing that it wanted you to have? That's the inspiration behind this shirt, called Cat-At Loves You. Available on Red Bubble.
Determine remaining daylight on your hand. Use this simple trick to measure the remaining daylight without a watch. Count the finger widths between the sun and the horizon. Each finger is equivalent to 15 minutes, with each hand totaling an hour.
Pump Fire Drill - The Iroquois invented this ingenious pump drill, which uses a flywheel to generate friction. The crossbar and flywheel are made of hardwood; the spindle and fireboard are made from softwoods (as in the ha