July 11, 2011 |
In the skies above Libya, the U.S. Navy has been deploying a small fleet of supersonic EA-18 Growler jets to "jam" Moammar Kadafi's ground radar, giving NATO fighters and bombers free rein to strike tanks, communication depots and other strategic targets. It's the latest demonstration of "electronic attack" hardware — the "EA" in the Growler's name. Armies have been waging electronic warfare since World War II, but today's technology packs a strategic wallop unforeseen even a decade ago. With foreign adversaries continuing to improve their radar capabilities and air defense networks, and terrorists worldwide using modern consumer electronics to trigger explosives, the United States is spending billions of dollars in a massive effort to respond.
CALIFORNIA | LOCAL
June 13, 2011 |
Robert Helliwell, a Stanford electrical engineer whose study of radio waves emitted by lightning opened a new window to understanding the upper layers of the Earth's atmosphere, died May 3 in Palo Alto of complications of dementia. He was 90. Helliwell specialized in bouncing radio waves off the ionized particles in the upper atmosphere, transmitting them over long distances to deduce the structure of those upper layers. Among other things, he showed that the Earth's ionosphere, an envelope of electrons and charged atoms and molecules beginning about 36 miles above the Earth's surface, actually extends as high as 20,000 miles, not the 200 miles researchers had previously believed.
November 29, 2010 |
"Private Practice" 10 p.m. Nov. 18, ABC Episode: "Can't Find My Way Back Home" The Premise: Sharon, a widow in her 40s, has been having severe seizures for more than seven years. Neurosurgeon Amelia Shepherd (Caterina Scorsone) is able to locate the scar from an old brain lesion that is causing the seizures, and she offers to insert a probe that will emit "radio waves to heat and ablate the scar. " Amelia tells Sharon that the repeated seizures will result in brain damage over 10 to 15 years if left untreated.
June 7, 2010 |
Though there's much to me you never will see I surround you and pound you. You never can flee. Without me you'd starve, be blinded and cold. The oceans would freeze and darkness take hold. I am light! And very little of me Is all that your poor eyes ever will see. You will never make out the radio waves From broadcasting towers and cell phones . . . and space. The infrared rays from the warmth of your knuckles Look as dim to you as those from your buckles.
September 5, 2009 |
Two radio station towers near Seattle that have generated intense local opposition were toppled in an act of sabotage that bore the initials of the radical Earth Liberation Front. The towers for KRKO-AM -- one of which was 349 feet tall -- were torn down because of health and environmental concerns, according to an e-mail from the North American ELF Press Office, which has represented the shadowy group in the past. "We have to weigh our priorities, and the local ecosystem in Everett, along with the local residents, do not need additional sports news radio station towers that come at the expense of reduced property values and harmful radio waves," ELF press office spokesman Jason Crawford said in the e-mail.
May 17, 2009 |
Pacific Gas & Electric Co. for decades has generated power for its customers by splitting atoms, burning natural gas and capturing the force of falling water. More recently, the San Francisco utility began turning to the sun, wind, boiling geysers and even fermented cow manure to produce electricity. Now, PG&E wants to turn to outer space. A Manhattan Beach start-up called Solaren Corp.