PRINTABLE SOLAR CELLS JUST GOT A LITTLE CLOSER
Dr Hairen Tan and his team of University of Toronto, Canada have cleared a critical manufacturing hurdle in the development of a relatively new class of solar devices called perovskite solar cells. This alternative solar technology could lead to low-cost, printable solar panels capable of turning nearly any surface into a power generator. The scientsts […]
How does wifi work?
IF you have wireless Internet access at home, you probably have a little box called a router that plugs into your telephone socket. This kind of router is a bit like a sophisticated modem: it’s a standalone computer whose job is to relay connections to and from the Internet. At your office, you might use […]
How do microwave ovens work?
MICROWAVE ovens cook and heat food incredibly fast, in minutes or less. But how does this great invention work? Microwave ovens operate in the electromagnetic spectrum at about the same frequency as a lot of telephones—2450 megahertz, but they have more power output as compared to cell phones. Microwaves do most of their work on […]