Wi-fi networks that enable our burgeoning online communications are a threat to trees, say Dutch scientists. According to the study in Holland, trees planted close to a wireless router had bleeding bark and dying leaves, reports the Daily Mail. The revelation has raised fears that wi-fi radiation may also be having an effect on the [...]
Posts Tagged ‘radiation’
Mimicking black holes: Dr Hawking’s bright idea
September 30th, 2010 |
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A long-predicted phenomenon has turned up in an unexpected place
IN 1974 Stephen Hawking, pictured, had a startling theoretical insight about black holes—those voracious eaters of matter and energy from whose gravitational clutches not even light can escape. He predicted that black holes should not actually be black. Instead, because of the quirks of quantum mechanics, they should glow ever so faintly, like smouldering embers in a dying fire. The implications were huge. By emitting this so-called Hawking radiation, a black hole would gradually lose energy and mass. If it failed to replenish itself it would eventually evaporate completely, like a puddle of water on a hot summer’s day.
Unfortunately for physicists, Dr Hawking also predicted that the typical temperature at which a black hole radiates should be about a billionth of that of the background radiation left over from the Big Bang itself. Proving his theory by observing actual Hawking radiation from a black hole in outer space has therefore remained a practical impossibility. …
Is BP’s Gulf Oil Radioactive?
August 31st, 2010 |
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New Orleans attorney Stuart Smith knows something about radiation from oil drilling:Smith is well known for his role as lead counsel in an oilfield radiation case that resulted in a verdict of $1.056 billion against ExxonMobil for contaminating land…
GE CT Scanning App Cuts Radiation Exposure by 50 Percent
June 24th, 2010 |
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General Electric’s ASIR software technology allows for reduced radiation in virtual colonography scans while maintaining accurate results, according to a study. Siemens and Philips are also working on similar radiation-reducing applications. – You may be able to dread cardiovascular tests a little less.
A software-based medical technique from General Electric called Adaptive Statistical Iterative Reconstruction, or ASIR,
has led to a lower amount of radiation in computed tomography (CT)
colonography tests while maintaining accurate …
San Francisco Expected to Pass Cell Phone Radiation Law
June 17th, 2010 |
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San Franciscos Board of Supervisors has stated its approval for a bill proposing that retailers clearly display the levels of radiation emitted by each cell phone they sell. While the link between brain cancers and cell phone use is considered inconclusive, some studies suggest otherwise. – Do cell phones cause brain tumors? Scientific evidence on the matter
is considered inconclusive, but residents of San Francisco are saying
theyd nonetheless like to be able to make more informed, and
potentially safer, cell phone shopping decisions.
On June 16, the San Francisco Board of Supe…
San Francisco shops to display phone radiation
June 17th, 2010 |
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In a first of its kind of law, San Francisco has made it a mandatory for the shops to display the amount radiation each mobile phone is capable of emitting. This is despite the fact that no scientific study has so far concluded that thee mobile phones are dangerous. The move to display the amount [...]
BlackBerry Bold Tops New Radiation Ranking
February 24th, 2010 |
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Latest Environmental Working Group data places the BlackBerry Bold 9700 as the device with the highest legal levels of cell phone radiation among popular smartphones, followed by the Motorola Droid, LG Chocolate and Google’s HTC Nexus One.
– RIM’s (Research in Motion) BlackBerry Bold 970 scores the highest
among popular smartphones for exposure to the highest legal levels of
cell phone radiation, according to the latest 2010 ranking by the (EWG) Environmental Working Group. Following the Bold are the Motorola Droid, LG Chocolate and G…
Radiation therapy can boost longevity in rare pancreatic cancer patients
November 21st, 2009 |
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People with rare pancreatic cancer, called pancreatic neuroendocrine tumours (PNTs), might live longer if treated with radiation therapy, says a study.
The researchers found that this method is effective in achieving local control and palliation in PNTs, despite such tumours being commonly considered resistant to radiation therapy.
PNT is a very rare form of pancreatic cancer that [...]
Sept. 25, 2002: Mysterious Meteorite Dazzles Siberia
September 25th, 2009 |
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2002: A large fireball flashes across the night skies of the Irkutsk region of Siberia. What may have been a comet causes electrical circuits to come alive and leaves residents worrying about radioactivity.
Eyewitnesses saw the sky light up. More than a hundred people in the sparsely settled area reported seeing it.
At least one person fell [...]
Cell Phone Radiation: The Five Best and Worst Devices
September 16th, 2009 |
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Iowa Sen. Tom Harkin, chairman of the Senate Health, Education, Labor, and Pensions Committee, said Sept. 14 the Senate plans to investigate the possible links between cell phone use and cancer. The World Health Organization and National Cancer Institute have said there is little clear evidence to prove the linkage, but the EWG (Environmental Working Group) and other organizations believe the evidence is compelling. According to the EWG here are the five safest phones for radiation emissions and the five worst.
– …
Motorola, Blackberry Tops for High Radiation Handsets, Study Finds
September 10th, 2009 |
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Put down that phone! A report from the Environmental Working Group finds handsets like RIM’s Blackberry Curve and phones from Motorola, T-Mobile and others lead the list of radioactive phones.
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A report from the Environmental Working Group (EWG), a
nonprofit research organization focused on protecting health and the
environment, published a comprehensive online consumer guide ever to cell phone
radiation, rating more than 1,000 cell phones marketed in the U.S. EWGs list
…
Motorola, BlackBerry Tops for High Radiation Handsets, Study Finds
September 10th, 2009 |
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Put down that phone! A report from the Environmental Working Group finds handsets like RIM’s BlackBerry Curve and phones from Motorola, T-Mobile and others lead the list of radioactive phones.
– The Motorola Moto VU204 has the highest radiation of any cell phone,
according to Environmental Working Group research, followed by T-Mobiles
myTouch 3G. Two of Research In Motions popular BlackBerry smartphones made the
top 10: the BlackBerry Curve 8330, at No. 4, and the BlackBerry Bold 9000, a…
Tanning Beds As Deadly As Arsenic And Mustard Gas: Study
July 29th, 2009 |
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LONDON — International cancer experts have moved tanning beds and other sources of ultraviolet radiation into the top cancer risk category, deeming them as deadly as arsenic and mustard gas. For years, scientists have described tanning b…
Study: Tanning beds as deadly as arsenic
July 29th, 2009 |
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LONDON (AP) — International cancer experts have moved tanning beds and other sources of ultraviolet radiation into the top cancer risk category, deeming them as deadly as arsenic and mustard gas. For years, scientists have described tanning beds and ultraviolet radiation as “probable carcinogens.”
A new analysis of about 20 studies concludes the risk of skin [...]
Helene Pavlov: The FAQ’s of X-Ray
July 22nd, 2009 |
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You hear the expression “you need an X-ray” at the Doctor’s office. This primer provides a better understanding of what that expression exactly means.