Supercapacitors: They’ll enable you to charge your cell phone in 5 seconds, or an electric car in about a minute. They’re cheap, biodegradable, never wear out and as Trace’ll tell you, could be powering your life sooner than you’d think.
Levitating graphite discs can be moved using just light © ACS A graphite disk levitating over a bed of rare earth permanent magnets can be ‘pushed’ around or made to spin using a laser beam, Japanese scientists have shown. The phenomenon can also be used to convert sunlight into movement, offering a possible alternative [...]
