It has been believed that Hall thrusters, an efficient kind of electric propulsion widely used in orbit, must be large to produce a lot of thrust. Now, a new study from the University of Michigan suggests that smaller Hall ...
Space Exploration
Jan 24, 2023
4
3819
(Phys.org)—The world of rechargeable batteries is full of trade-offs. While lithium-ion (Li-ion) batteries are currently the most commercially successful, their low energy density doesn't allow for a long driving range. ...
A Stanford University research team has designed a high-efficiency charging system that uses magnetic fields to wirelessly transmit large electric currents between metal coils placed several feet apart. The long-term goal ...
Energy & Green Tech
Feb 1, 2012
66
2
Researchers at the University of Miami and at the Universities of Tokyo and Tohoku, Japan, have been able to prove the existence of a "spin battery," a battery that is "charged" by applying a large magnetic field to nano-magnets ...
General Physics
Mar 11, 2009
11
0
(Phys.org) —A Purdue University nuclear engineering student has turned his time-consuming hobby into something new under the sun—an electric drive train that turns almost any skateboard into a high-speed magic carpet ...
Engineering
Nov 28, 2013
0
0
(PhysOrg.com) -- Plasma TVs are notorious for their excessive use of electricity, but the same principle used to produce high definition pictures in the TVs could result in the development of a new type of battery that would ...
If the mission sounds impossible, that's because it is—at least with today's technology: Build a three-pound flying machine that can, under its own control, take off, fly through a window into a model building, avoid security ...
Engineering
Aug 2, 2013
0
0
(Phys.org) —A Tesla Motors patent application filed earlier this year shows the company's interest in a hybrid battery pack using lithium ion and metal-air batteries. The patent is titled "Electric Vehicle Extended Range ...
Scientists have taken an important step forward in developing a new material using nano-sized magnets that could ultimately lead to new types of electronic devices, with greater capacity than is currently feasible, in a study ...
General Physics
Mar 30, 2012
4
0
The popular perception of electric vehicles is that it is a pain to keep them powered up. So imagine a world where the road itself keeps your battery juiced or your driveway starts recharging your car as soon as you park. ...
Hi Tech & Innovation
Nov 17, 2015
0
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