According to a press release, Sony is fielding proposals for a way to charge users to, well, charge. The technology would allow building owners to require authentication for power outlets, which could be used to reduce unwanted energy usage, but could also be used to demand money from, say, coffeeshop squatters who want to charge their laptops.
A case in which the conventional wisdom is scientifically inaccurate
By Gordon Mah UngPosted 09.04.2011 at 5:48 pm 0 Comments
Laptop computers used to run on nickel-cadmium batteries, which experienced the "memory effect," where they lost capacity over time if recharged before they were drained. That's no longer the case. Newer laptops use lithium-ion or lithium-polymer batteries. Repeatedly discharging the battery to zero doesn't help a lithium-ion; in fact, it will probably shorten its overall life and capacity.
One of the biggest obstacles facing electric vehicles is their range — the best models on the market can only drive about 100 miles on the highway on a single charge, which is pretty limiting in a world with very few EV charging stations. But AAA, the biggest roadside assistance service in the country, plans to offer a solution that has helped many a stranded motorist who runs out of fuel: An emergency supply of juice.
This Japanese cooking pot converts the heat from a boiling pot of water to electricity that can charge your smartphone at the same time it cooks a delicious meal. The invention, inspired by footage of Japan’s earthquake victims building fires to keep warm, could prove a boon after a natural disaster, when all you’d have to do to keep communication open would be to light a campfire.
When you think about it, it's ridiculous to spend the effort lugging around spare batteries, hand-cranked chargers, piezoelectric gadgets, and all the other half-baked solutions we depend on to resuscitate a dead phone. There's a potent supply of free power just waiting to be tapped, right above our heads. No, not the sun -- overhead power lines.
First the British invented waterproof Wellington boots; now they've invented a way to derive power from those boots. Could corduroy-friction-power be far off?
The European telecom firm Orange, which sponsors the huge Glastonbury Festival at the end of June, is promoting its new "Power Wellies" as a means for festivalgoers to keep their cellphones charged.
Imagine millions of plug-in vehicle owners returning home from work on a hot summer day, plugging in their cars at the same time, and melting down an overtaxed, outdated, and otherwise atrophied electrical grid. But the geniuses at Google say averting a disaster scenario could be as simple as a few lines of code (well, a few more than just a few).
If cord-free power delivers on its promise, our "wireless" world will finally live up to the name
By Kalee Thompson Posted 01.23.2008 at 3:58 am 18 Comments
Scientists have known for nearly two centuries how to transmit electricity without wires, and the phenomenon has been demonstrated several times before. But it wasn't until the rise of personal electronic devices that the demand for wireless power materialized. In the past few years, at least three companies have debuted prototypes of wireless power devices, though their distance range is relatively limited [see "Power Brokers," next page]. Then last year, a team at the Massachusetts Institute of Technology set the stage for wireless power that works from across a room.