Leo

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Tiny power plant can charge a pacemaker through heartbeats

Pacemakers and other electronic implants are a pain to keep running -- patients need surgery to replace batteries, and body-powered generators aren't currently strong enough to charge these devices. They may be far more practical in the future, though, as American and Chinese researchers have …

Scientists Make Hair-Growing Cells From Ordinary Skin Cells

It's a step toward curing baldness with stem cells made from a person's own skin.<p>Bald? A team of stem cell scientists has made an advance that's a step toward being able to regrow your own natural hair, using samples of your skin.<p>The scientists took adult human skin cells and transformed them into …

Stem Cells

Genetically modified monkeys created with cut-and-paste DNA

Breakthrough could help battle diseases such as Alzheimer's and Parkinson's but ethical concerns remain over animal testing<p>Researchers have created genetically modified monkeys with a revolutionary new procedure that enables scientists to cut and paste DNA in living organisms.<p>The macaques are the …

Test finds painkiller potential in spider venom - Futurity

A protein from the venom of the Peruvian green velvet tarantula blunts activity in pain-transmitting neurons, a new study shows.

Pain

How Dogs Read Our Moods: Emotion Detector Found In Fido's Brain

A paw on the leg. A nose nuzzling against your arm. Maybe even a hop onto your lap.<p>Dogs always seem to know when you're upset and need extra love, even though they hardly understand a word of what you say. How can that be?<p>Our four-legged friends have a little patch of their brain devoted to …

Scientists can now control flies' brains with lasers

A laser beam can alter a fly’s behavior and make it mate with just about anything — even a ball of wax, according to scientists at the Howard Hughes Medical Institute. The researchers have developed an experiment which involves shining an infrared laser directly at the head of a fly whose brain has …

A Cheap, Promising Way to Filter Water: Through A Twig

Plant's xylem tissue could be an efficient, low-cost way to filter water.<p>One way to avoid getting sick while traveling is to only eat fruit that you peel yourself, since plants can filter out bacteria and prevent it from traveling throughout their tissues. Well, why not apply this principle to …

Particles

Stanford opening new lab to study bad science

Despite the prestige that comes with research being published in peer-reviewed journals like <i>Nature</i>, recent investigation into published studies have found many to be irreproducible or flat-out wrong. Indeed, one groundbreaking stem cell study was recently called into question after researchers were …

10 Questions Still Baffling Scientists

Science has done a terrific job of answering some of the world’s most difficult questions, but certain mysteries still elude researchers. How does …

Happily disgusted? 15 new emotions ID'd

Until recently, scientists had only identified six basic human emotions: happy, sad, fearful, angry, surprised and disgusted.<p>These "emotion categories," as cognitive scientists like to call them, are defined by the facial muscles we use to express each emotion.<p>"The problem with that is that we …

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Four Girls Received Lab-Grown Vaginas

The girls, who were between the ages of 13 and 18, underwent the vaginal organ implant surgery between 2005 and 2008. All of them had Mayer-Rokitansky-Küster-Hauser (MRKH) syndrome, a rare genetic condition in which the vagina and uterus are either underdeveloped or absent. At follow-up, the organs …

Nanorobots that hide in your blood like viruses could someday fight cancer

When it comes to fighting disease, your body’s defense system doesn’t like enlisting outside help. Overcoming this “locals only” attitude has been a huge handicap for scientists trying to make medical nanorobots, but now a team from Harvard thinks they’ve developed a disguise that will help the …

Immune System

Tiny Fish May Be Ancestor of Nearly All Living Vertebrates

A stunningly preserved, soft-bodied fish that is more than 500 million years old could be the ancestor of almost all living vertebrates.<p>The fossilized fish, called <i>Metaspriggina,</i> sports characteristic gill structures that later evolved into jawbones in jawed vertebrates, according to a new …

Dinosaurs

Gene Editing Could Erase HIV

Scientists have used gene editing for years to manipulate genetic material—but what if it could be used to end HIV?<p>The diagnosis of HIV is not what …

Hidden 'Ocean' Discovered Deep Underground Near Earth's Core

We may have another "ocean" to add to the world map -- only this one is hidden hundreds of miles beneath our planet's surface.<p>A new study suggests that a hidden "ocean" is nestled in the Earth's mantle some 400 miles beneath North America. The hidden reservoir, apparently locked in a blue …

Scientists discover massive ocean of water 400 miles underground

Researchers at Northwestern University have found evidence for a massive reservoir of water deep within the Earth's mantle. The reservoir, which is said to be three times the volume of the oceans on the surface, is contained within highly-pressurized rock known as ringwoodite. The scientists hope …

10 Scientific Ideas That Scientists Wish You Would Stop Misusing

Many ideas have left the world of science and made their way into everyday language — and unfortunately, they are almost always used incorrectly. We …

Neutrons

Genetically Engineered 'Super Bananas' Begin Human Trials

If bananas weren't a super food before, these "super bananas" make a case for the fruit's place among the nutritious elite.<p>Bananas genetically …

This iPhone app could cut costs & save lives, & major hospitals are already using it

It’s the phone call everyone dreads: Mom had a stroke and was rushed to a nearby hospital. A nurse performs an EKG and other diagnostic tests, then contacts your mother’s cardiologist — who is at a medical conference and unable to review the test results.<p>Someone has to decide what happens next. If …

What God does to your brain

The controversial science of neurotheology aims to find the answer to an age-old question: why do we believe?<p>When neuroscientist Andrew Newberg scanned the brain of “Kevin”, a staunch <b>atheist,</b> while he was meditating, he made a fascinating discovery. “Compared with the Buddhist monks and Franciscan …

Breast Cancer

Researchers Now Able To 3D Print Working Blood Vessels

One of the biggest problems with printing human meat was the creation of blood vessels and ventricles. Making a solid mass of flesh was easy but adding a way to pump blood and other nutrients through the flesh was more difficult. Now researchers at the University of Sydney, Harvard, Stanford and …

Terrawatch: The crash that splintered Earth's crust

One of the things that distinguishes Earth from other planets is its plate tectonics. But how did this moving jigsaw surface begin? New research suggests that a 3.26 billion-year-old asteroid impact may have kick-started the process.<p>The impact crater has long since gone (recycled by plate …

The Fastest Way To Crack A 4-Digit PIN Number [Infographic]

Good ol' 1234 accounts for about 10 percent of passwords. That's more than the bottom 4,200 combinations put together.<p>We know people default to bad passwords, whether for their computers or banking PINs. But, we have to stress this here, people are <i>really</i> bad at picking passwords. This infographic …

Our Incredible Immune System

The human body is a biological marvel. Tasked to protect it is our immune system, which is responsible for detecting and neutralizing a wide variety …

The ultimate comeback: Bringing the dead back to life

A radical procedure that involves replacing a patient's blood with cold salt water could retrieve people from the brink of death, says David Robson.<p>“When you are at 10C, with no brain activity, no heartbeat, no blood – everyone would agree that you’re dead,” says Peter Rhee at the University of …

Medicine

The First Man-Made Biological Leaf Turns Light and Water Into Oxygen

If humanity hopes to realize its dreams of exploring the stars, we're going to need to find ways to recreate life on Earth aboard a spaceship. Simply …

EmDrive Is an Engine That Breaks the Laws of Physics and Could Take Us to Mars

An experimental engine is gaining acceptance among scientists, and could introduce a new era of space travel — it only had to break a law of physics …

4 Of The Most Evil Science Experiments Ever Performed

Image Source: Photobucket<p>At their best, scientists represent the best in humanity: intelligence, curiosity, and skeptical rigor. This allows …