Hydroponics and Aeroponics are great alternatives to traditional gardening for those who want to grow indoors, but it can be tricky to give your plants the right balance of nutrients and water. YouTube user GrowColt figured out a simple way to hack a $9 lamp timer into a controller that can automatically provide water and/or nutrients to your plants for 50 seconds every 40 minutes using common hand tools, a rubber washer, and superglue. More »