Stealthy, Versatile, and Jam Resistant Antennas made of Gas

User rating: 4.2 / 5 after 39 vote(s)

This prototype plasma antenna is stealthy versatile and jam-resistant. Credit: T. R. Anderson and I. Alexeff
This prototype plasma antenna is stealthy, versatile, and jam-resistant. Credit: T. R. Anderson and I. Alexeff

A new antenna made of plasma (a gas heated to the point that the electrons are ripped free of atoms and molecules) works just like conventional metal antennas, except that it vanishes when you turn it off.


Full story »
All News summaries from Physics news
All News summaries for November 12, 2007

FLASH Imaging Redux: Nano-Cinema is Born

Jul 08, 2008 | User rating: not rated yet
Flash imaging of nanoscale objects undergoing ultrafast changes is now a technical possibility, according to a recent paper published in the June 22 edition of Nature Photonics. The results are a direct ...

New logic: the attraction of magnetic computation

Jul 07, 2008 | User rating: not rated yet
European researchers are the first to demonstrate functional components that exploit the magnetic properties of electrons to perform logic operations. Compatible with existing microtechnology, the new approach ...

Are We in the Peak of an Oil Bubble?

Jul 07, 2008 | User rating: not rated yet
Since 2003, worldwide oil prices have quadrupled. According to a new study, the price of oil is rising at a faster-than-exponential rate, and cannot be sustained. In other words, we’re in the midst of an oil ...

Australia joins push for open access to particle physics

Jul 07, 2008 | User rating: not rated yet
Australia has joined SCOAP3, an international consortium that aims to provide free access to major particle physics journals world-wide. Six of the Group of Eight universities in Australia have agreed to participate in the ...

Einstein was right: Unique stellar system provides 'laboratory' for testing relativity

Jul 03, 2008 | User rating: not rated yet
Researchers at McGill University's Department of Physics – along with colleagues from several countries – have confirmed a long-held prediction of Albert Einstein's theory of general relativity, via observations ...
Goto Archive PhysOrg Forum Goto Archive Video Goto Archive Editorials Goto Archive Free Magazines Goto Archive Newsletter

News Archive