For kids:
Promising young electrical engineers can create a flying saucer, an alarm circuit, a doorbell, and much more with this award-winning kit from Elenco Electronics, a company that began in 1972 with two electronic engineers. Children can fit these circuits together on a base grid using snap wires that carry electricity. The kit includes a motor and a speaker that creates sound from electricity. The manual shows how to create all 101 projects, each with a specific learning objective. Kids can learn how a fan increases its speed with the flip of a switch or experience the science behind touch-lamps.
Completely new to electric circuits? Don鈥檛 worry鈥攖he manual also has of 鈥渄o鈥檚 and don鈥檛s.鈥�
Ages 8+
For adults: , $27.95
It might take a while to understand this clock, but for your STEM friend in college鈥攖he one who was always doing work in the lab鈥攊t takes no time at all.
It鈥檚 1 o鈥檆lock? Well, 1 g/cm鲁 is the number of the maximum density of water, which occurs at 4 degrees Celsius. (Actually, it鈥檚 a tiny bit less than 1颅 鈥� 999.9720, to be exact). Now it鈥檚 four? That happens to be the same number of base pairs that make up DNA! Time suddenly got a lot more fascinating to your science whiz of a friend.
