With 13 dimes, 13 pennies, 13 paperclips, salt water and an ice cube tray, you can make a 1.5-volt battery, powerful enough to light up an LED. Is there any better way to spend $1.43?
With 13 dimes, 13 pennies, 13 paperclips, salt water and an ice cube tray, you can make a 1.5-volt battery, powerful enough to light up an LED. Is there any better way to spend $1.43?