Ice-Tray Battery | Experiments | Steve Spangler Science

You probably know that voltaic batteries come in all kinds of shapes and sizes, from tiny button batteries to car batteries to huge industrial heavy-weights. They turn chemical energy into the electrical energy that people use to power clocks, toys, cell phones, medical devices, tablets, cars, satellites… and an LED! These batteries seem pretty complicated but you can make a real voltaic battery right in your kitchen. Grab the ice tray and start the electrons moving. Continue reading

Battery fires: The potential danger hiding in your kitchen junk drawer at Christmas and year-round

Health Canada says it received more than 100 consumer reports over the last year involving batteries — everything from overheating to starting fires.

Source: Battery fires: The potential danger hiding in your kitchen junk drawer at Christmas and year-round

Can 100% renewable energy power the world? – TED Ed

Every year, the world uses 35 billion barrels of oil. This massive scale of fossil fuel dependence pollutes the earth, and it won’t last forever. On the other hand, we have abundant sun, water and wind, which are all renewable energy sources. Continue reading