To download mp3 (audio): Click "Download mp3" button
To Cut/Crop mp3: Please use the slider below and click on "Download mp3" button to download the selected part.
Note that video to mp3 conversion output is limited to 10 minutes.
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.
"See The Scientific Accident That May Change The World (Or At Least Your Battery Life)"
"There's a video making the viral rounds describing a potential energy storage device that seems way too good to be true: a high capacity "battery" made in an almost absurdly simple process, which offers the prospect of super-fast charging of everything from smartphones to electric cars, and which can be safely composted at the end of its useful life."
"Graphene And The Emerging Technology of Neural Prostheses"