K.ravi

26 Flips | 1 Magazine | 3 Likes | @Kravi7dhi | Keep up with K.ravi on Flipboard, a place to see the stories, photos, and updates that matter to you. Flipboard creates a personalized magazine full of everything, from world news to life’s great moments. Download Flipboard for free and search for “K.ravi”

This Tiny Sculpture Is Perched Atop A Human Hair

Fine art at the microscale<p>The world’s smallest human figure, by artist Jonty Hurwitz, is only as tall as a sheet of paper is thick--just 100 microns. To "sculpt" it, he had nanoscientist Stefan Hengsbach direct long-wavelength light through a microscope onto a photosensitive polymer. This produced …

Will we ever eat genetically modified meat?

Tweaking the DNA of fish, pigs, and cows promises to breed healthier, happier animals and boost food production. But will people eat the results? Daniel Cossins investigates.<p>We need to use all the tools we have available, and genetic engineering is one of them<p>The highlands of western Panama are an …

Watch MMS spacecraft launch March 12

A stack of four identical spacecraft will study Earth’s magnetosphere – the comet-shaped magnetic shield that protects us from “space weather.” Watch …

Feeling tired? How melatonin helps you sleep

Melatonin supplements are often taken as a sleep aid, although it’s not clear if or how they work.<p>Our bodies also make melatonin naturally, and a new …

Apple's new ResearchKit lets iPhone users participate in clinical trials

It could help researchers recruit from more diverse populations<p>Apple announced today that it will help researchers recruit medical research participants through ResearchKit, a software medical platform that will turn the iPhone and HealthKit into diagnostic tools.<p>"There are hundreds of millions of …

False memories implanted into the brains of sleeping mice | Mo Costandi

Artificial memories implanted into sleeping mice influence the animals’ behaviour when they wake up<p>Neuroscientists in France have implanted false memories into the brains of sleeping mice. Using electrodes to directly stimulate and record the activity of nerve cells, they created artificial …

Look! Up in the sky! It's a meteor, says 81-year-old WA farmer

Journalists and astronomy buffs headed to a farm at Gidgegannup, 40km out of Perth in Western Australia, to search for a meteorite which a talkback radio caller says she saw fall over her property.<p>Angela Whife, 81, called ABC radio in Perth on Monday to say that she believed a meteor had winked out …

Rodent recall: false but happy memories implanted in sleeping mice

Researchers at CRNS in Paris create artificial positive feelings in mouse’s memory for first time during sleep, highlighting possible new treatment for depression<p>Scientists have succeeded in creating false but happy memories in mice, in the first demonstration of memory manipulation during sleep.<p>In …

Demonstration

Apple's medical research app raises hopes, questions

A new toolkit announced by Apple on Monday would allow medical researchers to tap into an expanding universe of iPhone users to recruit and enroll study participants, collect data and monitor health outcomes that are the object of research.<p>Apple on Monday made publicly available five new apps built …

9 Strategies For Battling Stress

Don't let tension take over your life<p>A little stress can be a good thing, but it’s important to keep it under control. These strategies will help you retain your Zen.<p>1. Bounce Back<p>Some people are naturally resilient, but it’s also a learned skill. Stress inoculation gradually exposes people to …

Harvard

Vegetarians who ate fish had lowest colorectal cancer risk, study says

Colorectal cancers kill more Americans than any other cancer except lung cancer, but a new study suggests you can reduce your risk of the disease by laying off the cheeseburgers and pastramis and opting for a large salad or broiled salmon instead.<p>After tracking 77,659 Americans and Canadians for an …

Colon Cancer

See the zodiacal light

At top: mysterious zodiacal light shining behind the Faulkes Telescope North on Maui, via Rob Ratkowksi/UH High Altitude Observatory.<p>Now that the …

How Do You Get People To Work Harder? Keep The Reward A Secret

When we're asked to do something, we often ask, "What's in it for me?" or "What am I going to get out of it?" Research suggests not knowing what you will get can sometimes be a strong motivator.<p>Transcript<p>RENEE MONTAGNE, HOST:<p>And I'm sitting in the studio with NPR's social science correspondent, …

How a doctor’s words can make you ill

A good bedside manner can help heal the body, but if doctors don’t choose their words carefully, they can also make you unwell.<p>Have you ever visited a doctor, and come away feeling they weren’t much help? Listen to the following audio clip, and you might start to understand why.<p>During a role-play …

Stress Quiz: How Stressed Are You?

No doctor's appointment required for this stress test<p>Afraid of needles? Pick up a pencil. In addition to drawing blood to check for stress markers, scientists craft quizzes to reveal whether you’re feeling harmful stress. This stress quiz was adapted from the Perceived Stress Scale by Sheldon …

Solar-powered plane takes off for round-the-world flight

Two pilots aboard a solar-powered aircraft took off at 7:12 a.m. local time from Abu Dhabi for the first leg of what they hope will be the first …

My Video

Superconductivity

Play media<p><b>Superconductivity</b> is a phenomenon of exactly zero electrical resistance and expulsion of magnetic flux fields occurring in certain …

Thallophyte

"Protophyta" redirects here. For the genus of moth, see Protophyta (moth).<p>The <b>thallophytes</b> (<b>Thallophyta</b> or <b>Thallobionta</b>) are a polyphyletic group of …

The man with the missing brain

A medical recovery that is baffling science - and giving hope to head injury patients<p>"Are you ready for our drive then?” Simon Lewis, 56, comes hobbling into his parents’ living room in Sherman Oaks, a suburb of the San Fernando Valley, north of Los Angeles. An Englishman by birth, his …

The Machine That Tried To Scan The Brain — In 1882

Everyone points to the Wright Brothers as the inventors of human flight. But centuries earlier, it was Leonardo da Vinci who imagined human flight, recognizing how birds used concepts like lift and wing shape to glide high above us.<p>Now scientists have uncovered new details about the man you might …

What Really Killed the Dinosaurs?

A Temporary Tattoo to Track Your Workout and Charge Your Phone

Scientists have invented a biosensor that can monitor exercise and store electricity.<p><b>Researchers have developed a battery in the</b> form of a temporary tattoo that can monitor your workout and even make electricity from your sweat. Eventually, biobatteries like this may be able to charge your watch, …

University of California

Machine that keeps lungs alive outside body tested

DETROIT — Creamy-pink and glistening, they lie on a stainless steel exam table — this pair of lungs inflating and falling in a rhythmic, ghostly pattern.<p>At the University of Michigan, researchers are pushing the limits of medicine, eking out new ways to boost the numbers of organs that are …