How the microwave oven was made from WWII radar tech

WWII radar technology unexpectedly and inadvertently led to the invention of one of the most widely used home appliance in the world.

Europe’s microwave ovens release as much CO2 as 6.8 million cars

That’s a lot of CO2.

Kitchen sponges are hotspots for bacteria. Sanitizing methods like microwaving don’t seem to work

Used sponges are teeming with bacteria. You should better replace them weekly instead of sanitizing them.

Why you should microwave your sponges, according to science

The best way to keep your sponges clean is to microwave them.

NASA confirms “Impossible” propellant-free microwave thruster works

Designs for a device called a “microwave thruster” were proposed in 2006. While the device was physically sound and followed the principles of relativity, it has been dismissed by researchers who claimed that such a functioning device would defy the law of conservation of momentum. A team from NASA set out to trial the device and see if it works; lo and

Microwave harvester converts wireless energy into direct current with solar cell-like efficiency

Using a range of cheap materials arranged in a specific manner, researchers at Duke University have demonstrated a device that captures microwave signals, such as those relayed by WiFi or even satellites high up above in Earth’s orbit, an converts this free, lost energy into electrical current. The harvesting and conversion efficiency of the device is on par with currently

Universe may be curved, not flat

It is currently believed that we live in a lopsided Universe: cosmologists reached this conclusion by examining the detailed structure of the left over radiation from the Big Bang. Now, two cosmologists presented data which seems to suggest that our Universe is actually curved slightly, in a saddle-like fashion; if correct, their model would invalidate the long standing idea that

Scientists cloak 3D object in microwave spectrum

The much dreamed off invisibility cloak is just a few tiny steps away, after remarkable research in the field, many backed by military interests, have sparked some amazing advances. In the last few years alone, scientists have managed to successfully cloak various objects either using meta-materials that bent light around an object to conceal it or electrically stimulated nanotubes which cause

The science behind crop circles

Crop circles have always been an important weapon in any conspiracy theorist’s arsenal, certain to be mentioned alongside UFOs, green aliens or reptilians. Since 1970, tens of thousands of crop circles have been reported around the world, most amateur hoaxes, while some are so intricately built that they even baffle scientists. In this month’s edition of Physics World, Richard Taylor,