capacitors
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Guy creates handheld railgun with a 3D-printer
An ambitious maker has built a partly 3D-printed railgun that can fire aluminum or graphite projectiles at over 250 meters per second (560 mph). No, this isn't Quake, but it's no janky, all-plastic gun, either. The "handheld" weapon houses six capacitors that weigh 20 pounds and deliver over 1,800 joules of energy per shot. And it indeed works just like a full-sized railgun, using parallel electrodes to fire an "armature" bullet. The creator, David Wirth, added an Arduino Uno R3 to monitor charging levels, temperature and other factors, and tweaked the rails after he noticed "plasma damage."
DUST 514 driver's ed includes stealthing, siege mode, and power draining
While the idea of piloting your own tank or drop ship in a virtual world may seem like a carefree joyride of devastation and destruction, think again: Turning on the engine in a DUST 514 vehicle may be the last thing you ever do if you're ignorant of the basics. In a new dev post, CCP opens up the manual of vehicle operation in its upcoming title and tells it like it is. For starters, players will need to train up specific skills in order to even be allowed behind the wheel of any of these beasts, and even then, a clueless operator could find him or herself a sitting duck if attention isn't paid to power consumption (in DUST 514's terminology, capacitors). Equipped modules all draw power from capacitors during combat, and while capacitors do regenerate over time, they can be drained, both from a player's actions or an enemy's attack. As such, it's important to keep power demands in mind when modding a vehicle. Two DUST 514 war machines are used as examples in the article. There's the Marauder HAV, a tank-busting tank that comes with an alternate siege mode, and there's the Force Recon dropship, which can clock, jam enemy sensors, and drain enemy vehicles' power. The post ends with a hypothetical battle scenario involving both of these, showing how they could be used out in the field.
Quantum batteries are theoretically awesome, practically non-existent
Today's dose of overly ambitious tech research comes from the physics lab over at the University of Illinois at Urbana-Champaign, in a proposal titled "Digital quantum batteries: Energy and information storage in nano vacuum tube arrays." It's like a who's who of undelivered promises got together and united to form one giant and impossible dream, but it's one we'd prefer to believe in regardless. Aiming to improve battery performance by "orders of magnitude," the project's fundamental premise is that when capacitors -- and we're talking billions of them -- are taken to a small enough scale and packed to within 10nm of one another, quantum effects act to prevent energy loss. The projected result is a wonderful world of rapid recharges and storage of up to ten times the energy current lithium-ion packs can hold, as well as the potential for data retention. The only problem? It would take a year just to build a prototype, meaning we can expect market availability somewhere between a score from now and just prior to the underworld morphing into an ice rink.
NC State researchers working up longevous capacitors
If being able to recharge your future collection of batteries "a thousand times more" than your existing stockpile sounds enticing, a team of NC State physicists now have your attention. Thanks to their research on the electromechanical properties of the commonly used polymer polyvinylidene fluoride (PVDF), they have discovered that when combined with CTFE (that's yet another polymer), it may allow capacitors to store "up to seven times more energy than those currently in use." According to Vivek Ranjan, the process moves atoms within the material "in order to make the polymer rearrange with the least voltage," and this storage booster could even be used to allow electric cars of the future to sport the "same acceleration capability as a gas-powered sports car." Sounds like more than a few manufacturers are desperate for something like this, eh?[Image courtesy of Biopact]
