Monday, August 1, 2011

Fall Of The Neanderthals

Map of the migration of modern man out of Africa. Triangles represent Aurignacian (considered the first modern humans) split-base points. (Credit: Dora Kemp, McDonald Institute for Archaeological Research)

Fall of the Neanderthals: Volume of Modern Humans Infiltrating Europe Cited as Critical Factor -- Science Daily

ScienceDaily (July 29, 2011) — New research sheds light on why, after 300,000 years of domination, European Neanderthals abruptly disappeared. Researchers from the University of Cambridge have discovered that modern humans coming from Africa swarmed the region, arriving with over ten times the population as the Neanderthal inhabitants.

The reasons for the relatively sudden disappearance of the European Neanderthal populations across the continent around 40,000 years ago has for long remained one of the great mysteries of human evolution.

Read more ....

Rate Of Species Disappearance Is Accelerating


History's Normal Rate Of Species Disappearance Is Accelerating, Scientists Say -- McClatchy News

PHILADELPHIA — Biologist E.O. Wilson once pondered whether many of our fellow living things were doomed once evolution gave rise to an intelligent, technological creature that also happened to be a rapacious carnivore, fiercely territorial and prone to short-term thinking.

We humans can be so destructive that some scientists believe we've now triggered a mass extinction - one that in several hundred years will rival the asteroid impact that killed the dinosaurs.

In some places, a mass extinction is already under way. Haiti, a "hotspot" for plant and animal diversity, may be closest to ecological collapse.

Read more
....

Monday, July 25, 2011

Chimps Are Not Human



The Chimp They Tried To Turn Into A Human: An Extraordinary Experiment In Which Scientists Raised A Chimpanzee As Their Child... With Chilling Results -- Daily Mail

The woman volunteer thought Nim was coming to hug her, but instead the young chimp lunged, biting so deep into her cheek that his fangs pierced her mouth.

As she clutched her bleeding face, the little ape was beside himself, using the same piece of sign language again and again to attract her attention. ‘I’m sorry, I’m sorry,’ he repeated.

This haunting recollection is one of many contained in a riveting new film, Project Nim, by the director of the Oscar-winning Man On Wire, about one of the most bizarre scientific experiments of recent times.

Read more ....

My Comment
: In today's world, these individuals would have been cited for animal abuse.

Saturday, July 23, 2011

Job Cuts At The US Space Shuttle Program


NASA Reducing Space Shuttle Workforce From 6,700 to 1,000 -- PC World

The landing of the Space Shuttle Atlantis and the official ending of NASA's 30-year space shuttle program marked a bittersweet moment for the 6,700-some shuttle workers tasked with maintaining the space-faring fleet.

NASA began issuing the first of its layoff notices for approximately 3,200 contract workers Friday, the first in a series of cuts scheduled to occur between now and August. NASA plans to drop down to a shuttle de-servicing staff of around 1,000 workers, which will be tasked with prepping the three main shuttles for their new homes in museums around the country.

Read more ....

My Comment: Remembering the US shuttle program.

Friday, July 22, 2011

150 Human Animal Hybrids Grown In UK Labs

Research centre: Warwick University has been growing animal human hybrids over the last three years

150 Human Animal Hybrids Grown In UK Labs: Embryos Have Been Produced Secretively For The Past Three Years -- The Daily Mail

Scientists have created more than 150 human-animal hybrid embryos in British laboratories.

The hybrids have been produced secretively over the past three years by researchers looking into possible cures for a wide range of diseases.

The revelation comes just a day after a committee of scientists warned of a nightmare ‘Planet of the Apes’ scenario in which work on human-animal creations goes too far.

Read more ....

Mass Extinction Caused by Deadly 'Earth Burp'

The Northern Calcareous Alps, where scientists found evidence of a giant, killing "burp" of methane emitted hundreds of millions of years ago.

From FOX News:

A massive, long-ago extinction was once thought to have been caused by a destructive wave of volcanic activity. Scientists now point their fingers at another culprit.

A giant, deadly “Earth burp.”

Micha Ruhl and researchers from the Nordic Center for Earth Evolution at the University of Copenhagen in Denmark have found that the mass extinction of half of Earth’s marine life over 200 million years ago was likely the result of a giant release of carbon methane in the atmosphere.

Read more ....

Wednesday, July 13, 2011

Will Budget Woes Kill NASA's Next Great Telescope?

The James Webb Space Telescope is the heir apparent to the Hubble Space Telescope
NASA

After Hubble: Will Budget Woes Kill NASA's Next Great Telescope? -- Time

Over the past hundred years or so, the science of astronomy has been utterly predictable, in an utterly unpredictable sort of way. Decade after decade, telescopes got steadily bigger and more powerful, and expanded their range beyond ordinary visible light into the hidden realms of ultraviolet, infrared, radio waves and more. And with every one of those leaps, astronomers discovered something unexpected and astonishing — massive black holes spewing blasts of energy into space, tiny neutron stars spinning a thousand times a second, dark matter pushing galaxies around like toys, and even the afterglow of the Big Bang at the dawn of time.

Read more ....

Breath-Taking Snaps Of Galaxy Seen With The Naked Eye

Stunning: Photographer Alex Cherney has dedicated his life's work to capturing the night sky as it is rarely seen by humans by using just an ordinary digital camera

The Milky Way So Close You Can Almost Taste It: Breath-Taking Snaps Of Galaxy Seen With The Naked Eye -- The Daily Mail

A star-gazer has come a little bit closer to the final frontier - after spending 18 months photographing the night sky.

With just an ordinary digital camera, Alex Cherney turned thousands of snaps into an incredible time-lapse video of the cosmos.

Using long exposures to allow more light in, these breath-taking pictures from the southern tip of Australia demonstrate how he captured the dramatic way the sky changes at night.

Read more ....

Tuesday, July 12, 2011

American Soccer Robots Dominate World RoboCup 2011

CHARLI-L2 Contemplates the Ball RoMeLa

American Soccer Robots Dominate at the World RoboCup 2011 -- Popular Science

Soccer fans, rejoice: America has won the World Cup. Well, the robot World Cup.

In the finale of RoboCup 2011, two Virginia Tech robots took top honors in the adult-size and child-size categories. The full-size humanoid CHARLI-2, making its public debut at RoboCup, won the adult-size robot soccer match with a penalty kick, beating Robo Erectus of Singapore 1-0.

Read more ....

Monday, July 11, 2011

Personal Life Of American Astronauts In Space


The Personal Life Of American Astronauts In Space: What's It really Like? -- L.A. Times

America's last space shuttle, Atlantis, docked Sunday at the International Space Station where the crew has a full 10-day schedule of work to accomplish on the final visit of the U.S. craft.

We witnessed the Atlantis launch Friday in the bright Florida sunshine, brightened even further by the 200-foot-long flaming flare of its five muscular rockets lifting the nearly five million pounds of craft and fuel into orbit.

Read more
....

Atlantis Mission Threatened By "Russian Debris"

Mission control is monitoring space junk to make sure it doesn't get too close during a space walk

'Russian' Debris Threatens Atlantis Mission As Ground Control Fears It Will Hurtle 'Dangerously Close' To ISS During Space Walk -- Daily Mail

* Nasa is trying to work out if the junk comes from a defunct Russian satellite
* It is scheduled to pass the space station at around 5pm GMT on Tuesday

Nasa is monitoring a piece of 'Russian' space junk that looks likely to come dangerously close to the International Space Station during a planned space walk tomorrow.

The debris is heading towards the station, where Atlantis yesterday docked on its final mission.

Scientists are still trying to work out how big the object is and how close it will come to Atlantis. Some believe it originated from a defunct Russian satellite that is orbiting Earth.

Read more ....

Is Cyberwar Unlikely?

Photo: USAF

Why Cyberwar Is Unlikely -- Live Science

In this last of a three-part series, LiveScience's sister site SecurityNewsDaily explores truths, distortions, confusions and likelihood of cyberwar. Click for Part 1: Cyberwar: Definition, Hype and Reality and Part 2: What Cyberwar Would Look Like.

Even as more and more countries invest in the idea of cyberwarfare, cyberspace remains largely peaceful insofar as actual war is concerned.

In the two decades since cyberwar first became possible, there hasn't been a single event that politicians, generals and security experts agree on as having passed the threshold for strategic cyberwar.

Read more ....

10 Ways Shuttle Tech Can Now Be Found Right Here On Earth

The Space Shuttle Cockpit NASA, via Wikimedia Commons

Ten Tech Innovations From NASA's Space Shuttle That Trickled Down to Non-Astronauts -- Popular Science

Tech designed for the space shuttle program have permeated just about every aspect of our lives. Here are ten you may not know about.

Your life is full of what NASA calls "spinoffs": ideas or products initially designed for NASA's particular (and particularly challenging) uses, but which trickled down to become commercial products. Of course, you may not recognize these items--there's no "made for NASA" sticker, and many of the iconic NASA products (Tang, Teflon, Velcro) weren't actually designed for or by NASA at all. But NASA-developed stuff is everywhere, from insulation to infant formula, from prostheses to fishing nets. Here are ten of our favorites that originated in the Shuttle program--the very program that just saw its last launch ever.

Read more ....

My Comment: Only 10?

NASA Tracking Space Debris In Space Station's Path

This handout illustration image created by Australia's Electro Optic Systems (EOS) aerospace company shows a view of the Earth with low-orbiting space debris. The US space agency is tracking a piece of space junk that could be on a path toward the International Space Station, where the shuttle Atlantis has just docked on its final mission, NASA said.

From Yahoo News/AFP:

The US space agency is tracking a piece of space junk that could be on a path toward the International Space Station, where the shuttle Atlantis has just docked on its final mission, NASA said Sunday.

However, NASA is not ready to say for sure whether the object is projected to collide with the shuttle and station, though the paths were likely to cross on Tuesday, said deputy manager of the space shuttle program LeRoy Cain.

"What we were told today is very preliminary," Cain said. "It is a potential right now."

Read more ....

Friday, July 8, 2011

Better Eyes For The Next Generation of UAVs



Hyperspectral Sensors: The Flying Eyes That See The Invisible -- Popular Mechanics

Hyperspectral imagers seen in bands of light that humans cannot. They are changing the way satellites scan the world, and now they're about to go aboard unmanned aircraft.

Bees see what we don't. Their eyes are adept at seeing in ultraviolet, so much so that flowers have evolved colorful patterns visible only in UV to attract bees' attention.

The vision of these buzzing insects is just one example of what lies beyond the limits of our naked eyes. In the bands beyond what we can see, there's lots of data that can be used to identify objects. But a new breed of man-made sensors is, like the eye of a bee, plucking information from a wider part of the spectrum than a camera or eye can see.

Read more
....

My Comment: In short .... you can run but you cannot hide .... the reaper uav in the sky will still be able to see you.

Thursday, July 7, 2011

A Separate Internet Could Curb Cyber Threats

The U.S. Navy Cyber Defense Operations Command The U.S. military and intelligence arms are already defending the nation from cyber attacks. DARPA hopes to give them another tool.

Former CIA Chief: A Separate Internet Could Curb Cyber Threats -- Popular Science

To combat cyber attacks, the U.S. may need more than new cyber defenses. It might need a whole new piece of Internet infrastructure. So says former CIA director Michael Hayden, who served under President G.W. Bush, and he’s not the only one. Several lawmakers and the current Cyber Command chief Gen. Keith Alexander are toying with the notion of creating a “.secure” domain where Fourth Amendment rights to privacy are voluntarily foregone in order to keep that corner of the Internet free of cyber criminals.

Read more ....

My Comment: We are going down this pathway, and while setting up the infrastructure for a separate but secure will be expensive .... the alternative of letting everything continue as is may end up being even more pricey.

New Clues To Galaxy Evolution

The region around Supernova 1987A as viewed by Herschel and Hubble. (Credit: ESA/Herschel/PACS/SPIRE/NASA-JPL/Caltech/UCL/STScI and the Hubble Heritage Team (AURA/STScI/NASA/ESA)

Stardust in Our Backyard Provides New Clues to Galaxy Evolution -- Science Daily

ScienceDaily (July 7, 2011) — New data from the European Space Agency's Herschel Space Observatory have revealed surprisingly large amounts of cold dust in the remnant of the famous supernova SN1987A, which exploded 24 years ago in the Large Magellanic Cloud, a neighboring galaxy of the Milky Way. With this discovery, astronomers confirm that supernovae are able to produce significant quantities of dust over very short time scales. This may help explain previous observations, by Herschel and other observatories, of abundant dust in the early Universe as seen in high-redshift galaxies.

Read more ....

A Lightning Show On Saturn

Detailed views ... Saturn's great white spot. Photo: AP/NASA

Saturn Puts On Spectacular Lightning Show -- Brisbane Times

LOS ANGELES: Saturn's Great White Spot, a recurring storm that has intrigued scientists since it was first observed in 1876, is a windy, towering cloud of ammonia and water spewing out super bolts of lightning.

Now astronomers and NASA's Cassini spacecraft, which has been orbiting Saturn since 2004, have captured the most detailed views to date of the phenomenon.

Read more ....

Tuna Need Urgent Protection, Study Concludes

A school of bluefin tuna (Thunnus maccoyii).
CREDIT: NOAA Fisheries Service

From Live Science:

Five of the eight species of tuna now qualify as threatened or near-threatened, according to the world's main authority on the conservation status of animal species. The tuna face a bleak future if more isn't done to safeguard them from overfishing, researchers warn.

Published today (July 7), the draft assessment of the International Union for Conservation of Nature's Red List of Threatened Species shows most tuna species are declining.

Read more ....

Wednesday, June 29, 2011

Top 10 Civilizations That Mysteriously Disappeared


From Toptenz.com:

Throughout our history, most civilizations have either met a slow demise or were wiped out by natural disasters or invasion. But there are a few societies whose disappearance has scholars truly stumped:

Read more ....

Los Alamos Nuclear Laboratory Remains Closed As Wildfires Threaten Facility



Los Alamos Fire: EPA Testing for Radiation -- ABC News

The wildfire that surrounds the nuclear lab in Los Alamos, New Mexico, has grown to at least 61,000 acres amid mounting concerns about what might be in the smoke that's visible from space.

Such fear has prompted the Environmental Protection Agency to bring in air monitors, along with a special airplane that checks for radiation levels. So far officials have not been able to find anything.

"Our facilities and nuclear material are protected and safe," Laboratory Director Dr. Charles McMillan told ABC News.

Read more ....

More News On The Los Alamos Fire

Los Alamos nuclear laboratory under siege from raging wildfire
-- The Telegraph
Los Alamos nuclear laboratory threatened by wildfire -- The Guardian
Towns near NM fire, nuclear lab wary of smoke -- USA Today
Scientists monitor air as fire burns near NM lab -- Forbes/AP
Fire chief says Los Alamos lab is safe from wildfire -- CNN
Los Alamos nuclear lab to remain closed as New Mexico wildfire nears -- Washington Post
Los Alamos wildfire reaches lab, forces evacuation -- CNET
Mandatory evacuation ordered as blaze threatens Los Alamos -- MSNBC

Saturday, June 25, 2011

A Look At Cyberwarfare And Hackers From A Russian Perspective

Evgeny Kaspersky was trained as a cryptologist and went on to co-found Kapersky Labs, which makes antivirus, anti-spyware, anti-spam and other online security products. In a recent SPIEGEL interview, he discussed a number of what he sees as worrying trends in cyber security. Regarding the new era of cyber war, he stated: "This war can't be won; it only has perpetrators and victims. Out there, all we can do is prevent everything from spinning out of control. Only two things could solve this for good, and both of them are undesirable: to ban computers -- or people." Sergei Chirikov/ AFP/ Getty Images

'I Fear the Net Will Soon Become a War Zone'. An Interview With Anti-Virus Pioneer Evgeny Kaspersky -- Spiegel Online

Evgeny Kaspersky is one of Russia's top Internet virus hunters and IT entrepreneurs. In a SPIEGEL interview, he discusses a raft of recent hacker attacks on multinationals, the "total professionals" behind the Stuxnet virus and his fear of both personal and widespread cyber violence.

Read more
....

My Comment: I love interviews like this one, and this from Spiegel does not disappoint. On a side note, the Independent has an excellent story on the secret world of hackers and the anarchy that they can unleash on the web. That link is here.

Tuesday, June 14, 2011

Photos Of Space Shuttle Docked At Space Station

ISS Shuttle Docking NASA

First-Ever Photos of Space Shuttle Docked At Space Station -- Popular Science

How the once-in-a-lifetime photo-op came to be.

After a 5-month stay at the International Space Station, Italian astronaut Paolo Nespoli snapped one-of-a-kind photos of the Space Shuttle docked at the ISS, on his way back to Earth in a Soyuz craft. This is the very first time photos have captured an American orbiter docked to the International Space Station.

Read more ....

Google Earth Goes Under the Sea



From Popular Science:

Google Earth broke new ground (new water?) when they took the world of virtual-earth-exploring into the oceans. Of course, the oceans are kind of big. They fill up nearly three-quarters of the earth's surface area, and most of that area hasn't been mapped out. But now you can tour roughly half of the known area without pulling on any SCUBA gear, thanks to Google's new underwater terrain explorer.

Read more ....

Commentary On Europe's Organic Food Scare



Europe's Organic Food Scare -- Wall Street Journal

German Greens and their European Union acolytes have long fought scientific advances in food production and protection. After a spice manufacturer in Stuttgart employed the world's first commercial food irradiation in 1957, West Germany banned the practice in 1959 and has since allowed few exceptions. So it's no small scandal that the latest fatal E. coli outbreak has been linked to an organic German farm that shuns modern farming techniques.

Read more ....

Monday, June 13, 2011

What Could A Solar Flare Do To Us?

CME NASA

When The Sun Unleashed Its Plasma Blast This Week, Earth Got Lucky -- Popular Science

What a predicted 2013 blast from the sun could mean for the U.S.

On Tuesday, the biggest solar flare in four years erupted from the sun, sending a mass of charged particles hurtling towards Earth. NASA announced that it was an M-2 (medium-sized) flare and an S1-class (minor) radiation storm. The electromagnetic pulse it induced created amazing auroras, but it could also damage satellites and radio communications. What would happen with an even stronger, larger flare? Something terrible...

Read more ....

Ancient Language Dictionary Finished

Martha Roth, Editor in Charge of the Assyrian Dictionary at the University of Chicago, puts the final volume in the set of books. (Credit: University of Chicago)

Huge Ancient Language Dictionary Finished After 90 Years -- Science Daily

ScienceDaily (June 9, 2011) — An ambitious project to identify, explain and provide citations for the words written in cuneiform on clay tablets and carved in stone by Babylonians, Assyrians and others in Mesopotamia between 2500 B.C. and A.D. 100 has been completed after 90 years of labor, the University of Chicago announced June 5.

Read more ....

My Comment: I look forward to them putting it online.

New 'Subatomic Particle' Likely A Fluke

The CDF detector, about the size of a three-story house, weighs about 6,000 tons. It recrods the "debris" emerging from each high-energy proton-antiproton collision produced by the Tevatron. CREDIT: Fermilab

From Live Science:

A report in April suggesting a giant atom smasher may have detected a never-seen-before subatomic particle had physicists at the edge of their seats with hope, albeit with a healthy dose of skepticism. Now an independent test of the results suggests it was just a fluke.

The tantalizing signal came from the Tevatron particle accelerator at the Fermilab physics laboratory in Batavia, Ill. Inside the accelerator there, particles race around a 4-mile (6.3 km) ring at near light speed. When two particles collide, they disintegrate into other exotic particles in a powerful outpouring of energy. [Wacky Physics: The Coolest Little Particles in Nature]

Read more
....

Astonishing Image Captures Night Sky

The image, taken in the remote town of Denial Bay, a fishing village on the edge of the Great Australian Bight, was taken using a special 'time lapse' process Photo: ANDREW BROOKS

Pictured: Astonishing Image Captures Night Sky In Dazzling Formation -- The Telegraph

Exclusive: Lit up in the night sky, this spectacular picture shows a galaxy of stars in a dazzling formation more akin to a large-scale spinning wheel.


The astonishing image, taken in the heart of the Australian outback, was used simply by taking advantage of the earth's rotation.

Andrew Brooks, an amateur photographer, took the image using his camera, a tripod, his neighbour's lounge room light and a little patience while letting gravity do the rest.

Read more ....

My Comment: This is why I love astronomy.

Most Apples Have Pesticide Residues

Apples Top List For Pesticide Contamination -- CBS News

That shiny little apple you're eating has a dirty little surprise. At least, that's what a food safety watchdog claims in its annual examination of government produce tests.

The Environmental Working Group says apples top its "Dirty Dozen" list of fruits and vegetables with the highest amounts of pesticides. "We found that nearly every apple sampled, 98 per cent, had pesticide residues," says Sonya Lunder, a senior analyst. "This is an accumulation of 48 different pesticides."

Read more ....

My Comment: One more reason to go organic

Monday, June 6, 2011

An Army Of Hackers Are Now Informing For The FBI

A quarter of hackers in the US have been recruited by federal authorities, according to Eric Corley, publisher of the hacker quarterly, 2600. Photograph: Getty Images

One In Four US Hackers 'Is An FBI Informer' -- The Guardian

The FBI and US secret service have used the threat of prison to create an army of informers among online criminals

The underground world of computer hackers has been so thoroughly infiltrated in the US by the FBI and secret service that it is now riddled with paranoia and mistrust, with an estimated one in four hackers secretly informing on their peers, a Guardian investigation has established.

Cyber policing units have had such success in forcing online criminals to co-operate with their investigations through the threat of long prison sentences that they have managed to create an army of informants deep inside the hacking community.

Read more ....

My Comment: I am skeptical that the FBI list of informers (in the hacking community) is that long .... but it is certainly an effective way to police the internet.

Friday, June 3, 2011

China's Drought Is Impacting World's Food Supplies


How Will China's Food Supply Weather the Year of Drought? -- Time

In China food supplies and food prices are deeply sensitive topics. So by the time the U.N.'s Food and Agriculture Organization issued a special alert warning in February that a prolonged drought in the North China Plain was a “potentially serious problem” for the country's winter wheat crop, China's leaders had already mobilized. President Hu Jintao and Premier Wen Jiabao made visits to farming regions in north China, pledging cash, equipment and manpower to ensure the crop survived.

Read more ....

My Comment: The world is already at the brink of experiencing severe food shortages .... China's drought is only going to make the situation worse.

Number Of Internet-Connected Devices Set To Reach 15 Billion Globally By 2015

New generation of users: Almost three billion people are expected to be connected to the internet by 2015

Everybody's Doing It: Number Of Internet-Connected Devices Set To Reach 15 Billion Globally By 2015 -- The Daily Mail

Forecasters predict there will be 15billion internet-connected devices in use around the world by 2015 - more than two for every person on the planet.

The recent growth in mobile phones and tablets has already pushed the number of devices above the five billion mark.

And fresh technical developments - including internet-connected televisions and cars - will drive a new surge in appliance use in the next four years, according to technology giant Cisco.

Read more ....

Endeavour's Mind-Boggling Cockpit Controls

(Click on Image to Enlarge)
Cluttered cockpit: Commander Mark Kelly and Italian astronaut Roberto Vittori sit on Endeavour's flight deck during what was the Nasa vessel's final mission

So, Where's The Ignition Switch? Endeavour's Mind-Boggling Cockpit Controls Revealed In All Their Glory -- The Daily Mail

Nasa shuttle is now bound for the California Space Center museum in Los Angeles

With hundreds of switches and buttons, and pieces of paper stuck to various hard surfaces, this is the somewhat chaotic cockpit of space shuttle Endeavour.

Commander Mark Kelly and Italian astronaut Roberto Vittori sit on the flight deck during what was the Nasa vessel's final mission.

With equipment strapped in place all around them, including a device taped to the back of a seat, the pair are jammed into their seats at the controls of the $2.2billion ship.

The cockpit is so crammed full of electronics, the astronauts are unable to stand when they climb in and out of their seats.

Read more
....

Astronomers Capture A Milky Way 'Clone'

The large spiral galaxy named NGC 6744 Photo: ESO/PA

Milky Way 'Clone' Captured By European Astronomers -- The Telegraph

A striking image of a giant Milky Way ''clone'' has been captured by astronomers.

The bird's eye view of NGC 6744 gives a good idea of what our own galaxy would look like to a passing space traveller.

The spiral galaxy is around 30 million light years away in the southern constellation of Pavo, the Peacock.

In the new image from European Southern Observatory astronomers it is seen almost face on, so that the striking spiral arms are clearly visible.

NGC 6744 would almost be an identical twin of the Milky Way were it not for its size.

Read more ....

A Leap Forward For DNA-Based Computers

A wiring diagram illustration depicts a system of 74 DNA strands that constitute the largest synthetic circuit of its type ever made. The circuit can compute the square root of numbers up to 15, though very slowly. (Lulu Qian / Caltech / June 2, 2011)

Research Marks A Leap Forward For DNA-Based Computers -- L.A. Times

A system involving 74 DNA strands can calculate square roots of numbers up to 15, though very slowly. Scientists say the goal is to devise computers that can interact directly with living cells — and perhaps fight disease.

Caltech researchers have produced the most sophisticated DNA-based computer yet, a wet chemistry system that can calculate the square roots of numbers as high as 15.

The system is composed of 74 strands of DNA that make up 12 logic gates comparable to those in a silicon-based computer, the researchers reported Thursday in the journal Science. But the system operates a little more slowly than a conventional computer: It takes as much as 10 hours to obtain each result.

Read more ....

The Evolution of DARPA's Robotic Hummingbird



Video: The Evolution of DARPA's Robotic Hummingbird, From Start to Finish -- Popular Science

Of all the DARPA projects we follow here at PopSci--and regular readers know that we follow a lot of them--perhaps none has been quite so fascinating as the Nano Air Vehicle (NAV) program, a.k.a. the robotic hummingbird, which culminated earlier this year in a working prototype. So you can imagine our delight when DARPA released this short video chronicling the bird’s journey from drawing board to early prototype to crash test dummy to eventual functioning, camera-equipped nano air vehicle that fits in the palm of a hand.

Read more ....

My Comment: I can easily see soldiers having this tech in their arsenal 5 years (or more) from now.

How Quantum Entanglement Will Help Computers Cool Themselves

The Tianhe-1A Supercomputer NVIDIA

Quantum Entanglement Means Computers Could Cool Themselves By Deleting Information -- Popular Science

But don't wipe your hard drives just yet.

It’s common empirical knowledge that computing generates heat--go ahead, touch the bottom of your MacBook--but a new paper in the journal Nature claims that it doesn’t have to. In fact, under the right conditions, theoretical physicists say that deleting data can actually produce negative heat--that is, it can have a cooling effect. That’s right, this is a quantum mechanics post. Exit now if you don’t want a headache to start the weekend.

Read more ....

The Final Minutes of Air France 447

Photo: AF447 Rio-Paris plane flight data recorder are displayed during a press conference on May 12, 2011, in the French agency Bureau of Enquiry and Analysis for Civil Aviation Safety (BEA) headquarters. Mehdi Fedouach/AFP/Getty Images

The Final Minutes Of Air France 447 -- Popular Science

Today, France's civil aviation authority released the first details from the flight data recorders of Air France 447, which wrecked in the Atlantic Ocean two years ago after taking off from Rio de Janeiro, killing everyone on board. The new information begins to fill in the picture of what happened up there, but leaves many open questions about both the actions of the crew and the subsequent behavior of the aircraft.

Read more ....

Honeybee Losses Reported Over Winter

Honeybees are dying off and last winter U.S. populations dropped by 30 percent. NOAA

Heavy Honeybee Losses Reported Over Winter -- Discovery News

The 30 percent drop was significant, but was at least less steep than the previous winter.

* Honeybee colonies nationwide have reduced in number by 30 percent, based on a recent survey.
* The decline is higher than normal but is less than losses of 34 percent sustained for the previous winter.
* Experts encourage individuals to plant pollinator gardens and otherwise join in the fight to save honeybees.

Honeybee colonies in the United States reduced in number by 30 percent over the 2010-2011 winter, according to a recently released annual survey conducted by the U.S. Department of Agriculture and the Apiary Inspectors of America (AIA).

Read more
....

Phase Change Memory-Based 'Moneta' System

A view of the internals of the Moneta storage array with phase change memory modules installed. (Credit: UC San Diego / Steve Swanson)

Phase Change Memory-Based 'Moneta' System Points To The Future Of Computer Storage -- Science Daily

A University of California, San Diego faculty-student team is about to demonstrate a first-of-its kind, phase-change memory solid state storage device that provides performance thousands of times faster than a conventional hard drive and up to seven times faster than current state-of-the-art solid-state drives (SSDs).

Read more ....

Air Pollution In Ancient Egypt

This mummy was discovered in Dakhleh Oasis, a remote outpost in southwest Egypt and lived around 1,800 years ago, at a time when the Romans occupied Egypt. Although much of the mummy remains are lost, the area around the lungs, where particulates were found, is well preserved. CREDIT: Photo courtesy Dakhleh Oasis Project.

Egyptian Mummies Hold Clues of Ancient Air Pollution -- Live Science

Ancient Egyptians may have been exposed to air pollution way back when, according to new evidence of particulates in the lungs of 15 mummies, including noblemen and priests.

Particulates, tiny microscopic particles that irritate the lungs, have been linked to a wide array of modern-day illnesses, including heart disease, lung ailments and cancer. The particulates are typically linked to post-industrial activities, such as fossil-fuel burning.

Read more ....

Thursday, June 2, 2011

Black Holes Spinning Faster Than Ever

An artist’s impression of the jets emerging from a supermassive black hole at the centre of the galaxy PKS 0521-36. Credit: Dana Berry / STScI

Black Holes Are Spinning Faster Than Ever -- Cosmos

PORTSMOUTH: The giant black holes in the centre of galaxies are on average spinning faster now than at any time in the history of the universe, according to two U.K. astronomers.

The new discovery was made using radio, optical and X-ray data, and suggests that the supermassive black holes that grow by swallowing matter will barely spin, while those that merge with other black holes will be left spinning rapidly.

Read more ....

Windows 8 Tablets Set To Challenge iPad, Android

Microsoft demonstrated for the first time the next generation of Windows, internally code-named "Windows 8," at the D9 conference. The company calls it a "reimagining of Windows, from the chip to the interface." YouTube

From FOX News:

Watch your back, iPad. Look out, Android. Windows is coming.

Microsoft Windows president Steven Sinofsky showed off a prototype Windows 8 tablet at the All Things D conference in California this week -- the company's answer to Apple's "magical" device and Google's Android.

The new tablet-friendly operating system will function much like the Windows Phone 7 platform, with tiles you can flick around the screen, click to start an app, or reposition anyway you want.

Read more ....

Cartoon Pic For Today

(Click on Image to Enlarge)

Californian Dolphin Gang Caught Killing Porpoises

Photo: Frustrated youth (Image: Mark P. Cotter)

From New Scientist:

SEEMINGLY random acts of violence by bottlenose dolphins on porpoises could be down to sexual frustration among young males.

Cases of the cetaceans killing other creatures for no apparent reason have been reported in UK waters. Now bottlenose dolphins have been seen attacking harbour porpoises in the Pacific Ocean. Crucially, these observations show for the first time that the attackers are young males (Marine Mammal Science, DOI: 10.1111/j.1748-7692.2011.00474.x).

Read more ....

Hidden Hieroglyphs Found Inside The Great Pyramid

A composite of images taken by a robot of the floor of the Great Pyramid is shown. Red hieroglyphs are visible. Djedi Team

Robot Finds Hidden Hieroglyphs Inside Pyramid -- MSNBC

Secrets of 4,500-year-old tomb revealed in first images from behind mysterious doors.

A robot explorer sent through the Great Pyramid of Giza has begun to unveil some of the secrets behind the 4,500-year-old pharaonic mausoleum after it transmitted the first images behind one of its mysterious doors.

The images revealed hieroglyphs written in red paint that have not been seen by human eyes since the construction of the pyramid. The pictures also unveiled new details about two puzzling copper pins embedded in one of the so called "secret doors."

Read more ....

How One Man And Half A Billion Honey Bees Help Feed America

The Beekeeper’s Lament: How One Man and Half a Billion Honey Bees Help Feed America By Hannah Nordhaus HarperCollins 336 pp

The Beekeeper's Lament: How One Man And Half a Billion Honey Bees Help Feed America -- Christian Science Monitor

Our bees are dying in apocalyptic numbers. What does it mean to us?

Bees are amazing. That’s the first reason to read The Beekeeper’s Lament, journalist Hannah Nordhaus’s rewarding account of migratory beekeeping and the mysterious scourge stalking the domestic bee population.

For the past week I’ve been telling everyone I’ve met stories from the miraculous lives of bees, like this one about the queen bee: Dihttp://www.blogger.com/img/blank.gifd you know that she makes only one flight her entire life, when she’s a few days old, and that it’s out among the swarms of male drones where she intertwines with as many as she can before returning to her colony carrying all the sperm she’ll ever need over the course of a reproductive lifetime in which she’ll lay hundreds of thousands of eggs?

Read more ....

VLT (Very Large Telescope) HD Timelapse Footage



This Time Lapse Video of the Very Large Telescope At Work is the Coolest Thing You'll See Today -- Popular Science

There’s very little we can write to preface the imagery below, so we’ll just set the scene and get out of the way. The video below was captured by Stephane Guisard and Jose Francisco Salgado at the European Southern Observatory’s Very Large Telescope (VLT) in Chile’s Atacama Desert. And it might make you cry.

Read more ....

My Comment: This looks so cool.

Why We Need A Good Night’s Sleep


A Good Night’s Sleep Isn’t a Luxury; It’s a Necessity -- New York Times

In my younger years, I regarded sleep as a necessary evil, nature’s way of thwarting my desire to cram as many activities into a 24-hour day as possible. I frequently flew the red-eye from California, for instance, sailing (or so I thought) through the next day on less than four hours of uncomfortable sleep.

But my neglect was costing me in ways that I did not fully appreciate. My husband called our nights at the ballet and theater “Jane’s most expensive naps.” Eventually we relinquished our subscriptions. Driving, too, was dicey: twice I fell asleep at the wheel, narrowly avoiding disaster. I realize now that I was living in a state of chronic sleep deprivation.

Read more
....

Wednesday, June 1, 2011

Endeavour Returns Home For The Final Time (Video)



As Endeavour Returns Home For the Final Time, Atlantis Prepares for the Last Shuttle Launch Ever -- Popular Science

Sailing through the midnight sky to a picture-perfect landing in Florida, the country’s youngest spaceship came home for the last time Wednesday, leaving a completed space station in its wake. On a 16-day mission, the crew of space shuttle Endeavour installed a massive physics experiment and put the finishing touches on the ISS, completing the last scheduled spacewalks by shuttle crew members.

Read more ....

How the Brain Processes Faces

Stimuli were matched with respect to low-level properties, external features and high-level characteristics. (Credit: Face images courtesy of the Face-Place Database Project, Copyright 2008, Michael J. Tarr)

How the Brain Processes Faces: Neural System Responsible for Face Recognition Discovered -- Science Daily

ScienceDaily (June 1, 2011) — Each time you see a person that you know, your brain rapidly and seemingly effortlessly recognizes that person by his or her face.

Until now, scientists believed that only a couple of brain areas mediate facial recognition. However, Carnegie Mellon University's Marlene Behrmann, David Plaut and Adrian Nestor have discovered that an entire network of cortical areas work together to identify faces. Published in the current issue of the Proceedings of the National Academy of Sciences (PNAS), their findings will change the future of neural visual perception research and allow scientists to use this discovery to develop targeted remedies for disorders such as face blindness.

Read more
....

Claim Of Arsenic-Based Life Reignites Debate

This scanning electron micrograph shows a strain of the arsenic-eating bacterium called GFAJ-1. CREDIT: Science/AAAS.

Debate Reignited Over Claim of Arsenic-Based Life -- Live Science

One of the more heated scientific debates of recent years has been stirred up again with the publication of new criticisms of the reported finding of "arsenic life."

The prestigious journal Science published the criticisms today (May 27) along with a defense of the study, which Science had posted online this past December.

A team of researchers led by Felisa Wolfe-Simon of NASA's Astrobiology Institute had studied bacteria collected from California's Mono Lake and reported finding evidence that these microorganisms were substituting the poisonous molecule arsenic for the phosphorous usually used to build DNA.

Read more
....

Hackers Finding The Holes In Net Safety

From Philly.com:

No security in cyber world.

Major hacking stories in the personal, political, and industrial worlds have shown recently how widespread cyber attacks - from the silly to the vicious - really are.

"They're happening every nanosecond - that's how you have to think," says Ray O'Hara, 2011 president of ASIS International, a security organization. "You just can't go to sleep at night, thinking you're secure."

Read more ....
Photo: "Mrs Ples" is the most famous example of A. africanus from the Sterkfontein cave site

Ancient Cave Women 'Left Home' -- BBC

Analysis of early human-like populations in southern Africa suggests females left their childhood homes, while males stayed at home.

An international team examined tooth samples for metallic traces which can be linked to the geological areas in which individuals grew up.

The conclusion was that while most the males lived and died around the same river valley, the females moved on.

Similar patterns have been observed in chimpanzees, bonobos and modern humans.

Details of the study are published in a letter in Nature.

Read more ....

Electrons Are Almost Perfectly Round

Electrons orbiting an atom Photo: ALAMY

Electrons Are Almost Perfectly Round, Scientists Discover -- The Telegraph

Electrons may be the most round natural objects in the universe, a study has discovered.

Researchers at Imperial College London have made the most accurate measurement yet of the shape of an electron, finding that it is almost a perfect sphere.

Experts found that the subatomic particles differ from being perfectly round by less than 0.000000000000000000000000001cm.

Read more
....

Steve Jobs Returns From Medical Leave

Mr Jobs will launch Apple's new Mac software, Lion, and iO5, the next version of the firm's iPhone and iPad software

Steve Jobs Returns From Medical Leave For Launch Of Apple's Lion Operating System -- The Daily Mail

*He will launch Apple's new Mac software, Lion, and iO5, the next version of the firm's iPhone and iPad software

Apple chief executive Steve Jobs will return to the fray from medical leave next week to open the technology giant's annual developers' conference.

The company's inspirational boss, who has been gravely ill in recent months, will deliver the San Francisco event's keynote speech next Monday.

Read more ....