(Phys.org) -- Mechanical energy is all around us, whether in the form of a vehicle's vibrations, ocean waves, or vibrating train tracks. However, much of this energy is irregular and oscillatory - for example, road bumps ...
High-frequency antennas transmit radio waves across vast distances and even over mountain ranges using very little energy, making them ideal for military communications. These devices, however, have one big problem: They ...
Engineering
Apr 26, 2016
5
30
(PhysOrg.com) -- European researchers have developed a small robotic drone capable of helping save lives in emergency situations or preventing terrorist attacks in urban areas.
Engineering
May 29, 2009
5
0
How can we navigate airliners or allow military vehicles to stay on course without GPS or satellite signals? This is a problem for which quantum inertial sensors offer a solution. Harnessing quantum technology, they can take ...
Quantum Physics
Nov 10, 2022
0
87
The market for military drones is expected to almost double by 2024 to beyond $10 billion (8.9 billion euros), according to a report published Friday by specialist defence publication IHS Jane's Intelligence Review.
Engineering
Oct 3, 2015
1
886
An ultra-light unmanned aircraft powered by solar energy and designed for military surveillance landed after two weeks aloft and setting a record for the longest unmanned flight, its manufacturer said.
Energy & Green Tech
Jul 24, 2010
2
0
(Phys.org) —A long-term collaboration between the University and industry has resulted in a super-strong form of steel, which is now being manufactured in the UK for use as stronger and cheaper armour for front-line military ...
Engineering
Jun 10, 2014
15
0
U.S. Navy pilots and sailors won't be considered crazy for reporting unidentified flying objects, under new rules meant to encourage them to keep track of what they see. Yet just a few years ago, the Pentagon reportedly shut ...
Other
May 17, 2019
19
22
Hovering like mechanical sparrows over a windswept Maryland field on a bright Saturday afternoon, small drones seem harmless—but they are at the center of an ardent dogfight over US regulations.
Engineering
Feb 14, 2014
3
0
(AP) -- China is shuttering more than a dozen websites, penalizing two popular social media sites and detaining six people for circulating rumors of a coup that rattled Beijing in the midst of its worst high-level political ...
Internet
Mar 31, 2012
0
0
