A battery can hold a lot of energy, but it takes a long time to charge it. A capacitor can be charged very quickly, but doesn't hold a comparable amount of energy.
A graphene supercharger is the best of both: it takes just seconds to charge, yet stores a lot of energy. Imagine being able to charge your spent laptop or phone battery in 30 seconds, and your electric car in a few minutes. Also, unlike batteries, Graphene supercapacitors are non-toxic.
The Nobel Prize was awarded to the inventors of Graphene in 2010. Wikipedia defines Graphene as a "substance composed of pure carbon, with atoms arranged in a regular hexagonal pattern similar to graphite, but in a one-atom thick sheet. It is very light, with a 1-square-meter sheet weighing only 0.77 milligrams."
(via Tony Moore at the Boing Boing G+ community)
MNTNT’s Albert Clock is a clock that presents the hours and minutes as simple math problems. Is it annoying or engaging? Or…. both! In standard mode, the queries change every minute. They are completely random, so even the query for the hours change, even if the result stays the same. You can speed up this […]
“Before a finger leaves a key, the next key is already being pressed. She is making 9 keystrokes per second.” (From the Japanese TV series Begin Japanology)
The last manufacturer of arcade-sized cathode ray tubes is out of the business, with one supplier having only 30 or so in stock and no chance of ordering more. The manufacturing process is difficult enough that it’s unlikely anyone will step into the breach; Venturebeat’s Jeff Grubb reports that times will be good for skilled […]
The Lightning port has thus far resisted the cruel fate that befell the headphone jack, and despite rumors that it may be disappearing come iPhone 8, for the present and foreseeable future, Lightning cables are a hot commodity for iPhone users. As such, we must make do in this strange time in which long, glorified […]
All the filters in the world won’t save your smartphone pics from a shaky hand. To really step up your mobile photography game, you’ll need some kind of mount to hold it steady. You could buy a smartphone attachment for a conventional camera tripod, but who wants to carry that kind of gear everywhere they […]
The forced transition from analog to digital TV signals was probably met with relative indifference from people with Netflix subscriptions and the “I don’t even own a TV” snoots. But anyone living in the vast swaths of the country that don’t have guaranteed high-speed internet, broadcast TV is a perfectly valid (and 100% free) way […]