Visit Worldwide Topsites

50mw High Powered Black Dimple Green Laser Pointer
Amazon Price:
Customer Review: this laser is absolutly a piece of junk. it is not bright at all and it flickers and dims. i highly recomend you buy your laser from a different company because the laser is a piece of junk and i will...

5mw Black Dimple Finish High Power Green Laser with Double Bonus L.E.D. Flash...
Amazon Price:
Customer Review: This item is NOT SOLD as it is described! It is only the Green Laser and it does NOT come with the flashlight or optical cloth! This has also been posted by another buyer today, where they do not sh...

Green Laser Pen Astronomy Grade for Military, Lecturers and Law Enforcement w...
Amazon Price:
Customer Review: I love this little super bright laser pointer, it sends out strong beam , bright and firm. The service from Kaito is as great as the laser pointer,I order it and they ship it the same day, and I recei...

50mw Black Dimple Green Laser Pointer High Powered
Amazon Price:

20mw Black Dimple Green Laser Pen Astronomy Grade for Military, Lecturers and...
Amazon Price:


Kindle: Amazon's New Wireless Reading Device

Scientific American News

 
Today's Astronomy, Space and Science News
Eurekalert Astronomy & Space News
Astrobiology Magazine News
Gemini Observatory News
Earth Observatory News
European Southern Observatory News
The Astronomer's Telegram
Lunar & Planetary Institute News
Astronomy Picture of the Day
PBS Nova News
BBC Science and Nature News
CNN Science News
MSNBC Science News
National Geographic News
Science@NASA News
NASA PlanetQuest News
NASA Breaking News
NASA TV
ESA News
Space Today News
NASA Watch News
Space Shuttle News
X-Prize News
Scientific American News
The Space Show
Wired Space News
STEREO Solar Mission News

Scientific American News

Girls Equal Boys at Math [60-Second Science]

24 Jul 2008 at 10:01pm 

[The following is an exact transcript of this podcast.]

[More]
Read more...

How Anecdotal Evidence Can Undermine Scientific Results [Scientific American ...

24 Jul 2008 at 10:00pm 

The recent medical controversy over whether vaccinations cause autism reveals a habit of human cognition--thinking anecdotally comes naturally, whereas thinking scientifically does not.

On the one side are scientists who have been unable to find any causal link between the symptoms of autism and the vaccine preservative thimerosal, which in the body breaks down into ethylmercury, the culprit du jour for autism’s cause. On the other side are parents who noticed that shortly after having their children vaccinated autistic symptoms began to appear. These anecdotal associations are so powerful that they cause people to ignore contrary evidence: ethylmercury is expelled from the body quickly (unlike its chemical cousin methylmercury) and therefore cannot accumulate in the brain long enough to cause damage. And in any case, autism continues to be diagnosed in children born after thimerosal was removed from most vaccines in 1999; today trace amounts exist in only a few.

[More]
Read more...

Looking for a Sign?: Scientifically (In)accurate Horoscopes [Scientific Ameri...

24 Jul 2008 at 10:00pm 

We Scientific Americans are emphatic empiricists. And although astronomy and astrology have common historical roots, the modern practice of astrology is total hooey. (And we say that only because we choose not to use stronger words than hooey in a family magazine.)

Nevertheless, some staffers were recently musing about what a horoscope would look like in our august pages. (Or September, even.) So here’s a proof-of-concept. It’s not based on science, because it’s impossible to have a horoscope based on science. But it’s science heavy. Specific predictions accompany individual zodiacal signs as per the form of the typical newspaper or magazine horoscope page (and shame on all you allegedly legitimate news outlets for running such garbage). Some of the predictions may seem intimately related to the sign in question. Even so, consider them all totally interchangeable, as the truly important aspect of the coordinates of your birth is the GDP at that time and place. And away we go.

[More]
Read more...

Mystery of Why Northern Lights "Dance" May Be Solved [News]

24 Jul 2008 at 6:00pm 

People have long marveled at the majestic and mysterious northern lights that light up the skies over the polar regions of countries like Canada and in Scandinavia. Scientists have known for years that these undulating auroras are caused by a storm of charged particles high above Earth. And although a sight to behold, the forces triggering these lights can endanger satellites and air travelers near the poles. But researchers were in the dark about just what forces acted on these so-called magnetic substorms to produce the shimmering lightshows that dazzle us--until now.

Scientists have debated for decades whether local electrical disruptions in Earth's magnetic field or far-flung happenings in the so-called magnetotail (the tapering region of the magnetic field that points away from the sun) lead to the flare-ups of these substorms and their associated auroras.

[More]
Read more...

Shrimp fossil tells of once (and future?) temperate Antarctic [60-Second Scie...

24 Jul 2008 at 4:12pm 

Was the Antarctic once a balmier place? Researchers report in the British journal Proceedings of the Royal Society B that a fossil of a tiny crustacean offers proof that it had a relatively toasty clime as recently as 14 million years ago. The rocks in eastern Antarctica's Dry Valleys region yielded the fossil of an ostracod (seen at left)--a shrimp-like crustacean that lived in an ancient Antarctic lake seen at left. The tiny crustaceans need liquid water to survive--unavailable in today's Antarctic where temps average -13 degrees Fahrnenheit (-25 degrees Celsius), but possible eons ago when the climate there was more like Alaska's. The living relatives of the ancient critter don't get any closer to Antarctica than the surrounding seas, but the fossil indicates that the bone dry landscape, often compared to that of Mars, once was warm enough to have water. What it doesn't reveal is what caused the climate shift, a process that may be reversing itself at present.

[More]
Read more...

Aging May Be Controlled by Brake and Accelerator Genes [News]

24 Jul 2008 at 4:00pm 

Can we tweak certain genes to stave off the aging process--or, conversely, to speed it up? New research indicates that it may one day be possible. [More]


Read more...

A Shark Tale: Are These Mighty Ocean Predators in Trouble? [News]

24 Jul 2008 at 4:00pm 

Forget Jaws. The scariest thing about sharks is their tenuous future.

Though often misperceived as villainous denizens of the deep, these top predators play an important role in preserving the balance of the ocean's ecosystems by keeping their prey's populations in check.

[More]
Read more...

Supernova Caught Red-Handed Seen as Missing Link [News]

24 Jul 2008 at 3:30pm 

Researchers have offered a new explanation for an unprecedented stellar explosion caught in the act earlier this year. [More]


Read more...

Gas-Free Horizon--An Update on Plug-In Cars [EarthTalk]

24 Jul 2008 at 12:30pm 

Dear EarthTalk: Should we expect to see “plug-in” hybrid cars anytime soon? I’ve been hearing they are on the horizon but I wonder if that means in one year or 10.-- Bill A., Stratford, CT

[More]
Read more...

A Tale of Two "Spam Kings" [News]

24 Jul 2008 at 8:45am 

Law enforcement has for years struggled to keep up with cyber crooks who use computers and networks to commit their crimes--whether it's theft, extortion or fraud. Cyber criminals are a slippery bunch, adept at covering their digital fingerprints to stay one step ahead of the law. One of the most effective ways of fighting any crime is to discourage would-be criminals by making an example of lawbreakers. [More]


Read more...

Scientific American Resources

Scientific American
The homepage for Scientific American magazine.

Scientific American Astronomy Channel
Read up on the latest discoveries in our galaxy and universe beyond at Scientific American's Astronomy Channel.

Bookmark/Share This Page

ADD TO DEL.ICIO.US
ADD TO DIGG
ADD TO FURL
ADD TO NEWSVINE
ADD TO NETSCAPE
ADD TO REDDIT
ADD TO STUMBLEUPON
ADD TO TECHNORATI FAVORITES
ADD TO SQUIDOO
ADD TO WINDOWS LIVE
ADD TO YAHOO MYWEB
ADD TO ASK
ADD TO GOOGLE
ADD TO MAGNOLIA
ADD TO NING
ADD TO RAWSUGAR
ADD TO SPURL
ADD TO TAGTOOGA


Bookmark and Share


Related Scientific American Videos



Meade LXD75 SN-6" Telescope with UHTC. Opens up the sky to images and capabilities previously unavailable to the cost-conscious amateur astronomer.


Scientific American News News


2008 Maine Literary Festival to Focus on the Environment - MarketWatch

24 Jul 2008 at 3:28pm 

2008 Maine Literary Festival to Focus on the Environment
MarketWatch - 12 hours ago
He contributes articles to national publications including Science, Scientific American, The Smithsonian, Natural History and the New York Times. ...

Read more...


UN on Tight Deadline to Reduce Malaria Cases - findingDulcinea

24 Jul 2008 at 2:35pm 

findingDulcinea

UN on Tight Deadline to Reduce Malaria Cases
findingDulcinea, New York - 13 hours ago
... will require an unprecedented degree of coordination among financing, training, monitoring and logistics? to be successful, said Scientific American. ...

Read more...


G8 leaders are able but unwilling to act - guardian.co.uk

24 Jul 2008 at 12:02pm 

G8 leaders are able but unwilling to act
guardian.co.uk, UK - 15 hours ago
The third problem is the disconnection between global scientific expertise and politicians. Scientists and engineers have developed many powerful ways to ...

Read more...


Earnings roundup: Ford, Cash America - Forbes

24 Jul 2008 at 7:39am 

Earnings roundup: Ford, Cash America
Forbes, NY - 20 hours ago
(AP) - Laboratory equipment and supply maker Thermo Fisher Scientific (nyse: TMO - news - people ) Inc. said Thursday its profit rose 52 percent in the ...

Read more...


Are a Popular Doping Drug?s Effects All in the Mind? - Scientific American

24 Jul 2008 at 2:07am 

Are a Popular Doping Drug?s Effects All in the Mind?
Scientific American - Jul 24, 2008
By Katherine Leitzell Editors? note: This story will appear in the October/November 2008 issue of Scientific American Mind. Many athletes credit drugs with ...

Read more...


Industry Veteran Brett Scott Joins North American Scientific as ... - FOXBusi...

23 Jul 2008 at 12:21pm 

Industry Veteran Brett Scott Joins North American Scientific as ...
FOXBusiness - Jul 23, 2008
Mr. Scott joins North American Scientific from his role as CFO at Alsius Corporation, a publicly traded medical device company focused on temperature ...

Read more...


IN THE MAIL: Renewable energy?s clean future awaits - Grand Forks Herald

19 Jul 2008 at 10:00pm 

IN THE MAIL: Renewable energy?s clean future awaits
Grand Forks Herald, ND - Jul 19, 2008
The January Scientific American says solar energy?s potential is off the chart. In about 16 years, sunlight can provide 3 percent of our energy ? equivalent ...

Read more...



Texas Instruments TI-89 Titanium Graphing Calculator
Texas Instruments TI-89 Titanium Graphing Calculator

Amazon Price: $134.99
Used from: $89.43

Texas Instruments TI-30X IIS 2-Line Scientific Calculator
Texas Instruments TI-30X IIS 2-Line Scientific Calculator

Amazon Price: $17.48
Used from: $7.99

Texas Instruments TI34II Calculator
Texas Instruments TI34II Calculator

Amazon Price: $24.99
Used from: $14.50

Celestron 44300 HandHeld Digital Microscope
Celestron 44300 HandHeld Digital Microscope

Amazon Price: Too low to display
Used from: $0.00

Amazing Mirage Bowl
Amazing Mirage Bowl

Used from: $32.50

Telescopes and Telescope Eyepieces

Software for your Phone, PDA and Handheld Devices:

astrographics.com

Search astrographics.com