parag shende

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Supercomputing reveals geometry of ‘jamming’

Using a supercomputer and mathematically rich formulas, physicists have captured fundamental insights about what happens when objects moving freely …

National Science Foundation

Freedom for scientific mavericks

Donald Braben and others ask for suggestions on how to support and encourage "maverick" scientists to pursue open-ended research (Letters, 19 March). One way is to encourage scientists to move from one institution to another, so they do not become set in the orthodox thinking of one particular …

Why The Exxon Valdez Spill Was A Eureka Moment For Science

<i>On March 24, 1989, the tanker Exxon Valdez struck a reef in Prince William Sound, Alaska, spilling 11 million gallons of crude oil into the pristine water. At the time, it was the single biggest spill in U.S. history. In a series of stories, NPR is examining the lasting social and economic impacts</i> …

The Power of Simple Math

Chess has existed for around 1,500 years, and there are different stories about how it was invented. The most colorful is the legend of King Shirham, …

What's the Weirdest Event of the Last 50 Years?

<i>On Fridays, we ask a series of unrelated questions. Your answers help get us through the afternoon. Answer one, answer all, or ask your own question.</i> …

11 Surprising Facts About Archie Comics

Ever think while reading <i>Archie</i> comics, "I wonder how Archie dies"? No? Well too bad, because you're going to find out. In issue #36 of "Life With …

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 …

Could bionic plants save our lives one day?

Bionics, such as this device invented to replace the functionality and feeling of a man's hand lost in an accident, are steadily finding their way into human lives. Thanks to new research conducted at MIT, such devices may soon be infiltrating the plant world as well -- leading to plants that could …

Gravitational waves discovery: 'We have a first tantalising glimpse of the cosmic birth pangs'

The sighting came from a small telescope on the roof of a laboratory sat on the ice sheet three quarters of a mile from the geographic South Pole. First came the rumours. But then researchers at the Harvard-Smithsonian Centre for Astrophysics went public. Their telescope had spotted indirect …

Is Sirius the most luminous star?

Tonight – March 17, 2018 – look outside, and you can’t miss Sirius, the brightest star in the nighttime sky. Is Sirius the most luminous star? No. To …

Star trails, moon trail, over Monument Valley

The bright light in this 25-minute exposure by Victor Goodpasture is the moon.<p>EarthSky Facebook friend Victor Goodpasture captured this photo at …

Newton's Universal Law of Gravitation

How Isaac Newton's encounter with that apple ended up helping send rockets into space<p>Newton's equation first appeared in the <i>Philosophiæ Naturalis Principia Mathematica</i>, July 1687. It describes why that apple fell from that tree in that orchard in Lincolnshire. Whether or not that apple actually …

New idea for how Earth’s core formed

An iron melt network helped grow Earth’s core, a Stanford study suggests<p>Stanford scientists recreated the intense pressures and temperatures found …

How Quantum Computers and Machine Learning Will Revolutionize Big Data

Author: Jennifer Ouellette, Quanta Magazine. Jennifer Ouellette, Quanta Magazine Science<p>Date of Publication: 10.14.13.<p>Time of Publication: 9:30 am. …

Map of 6,000 clouds pinpoints where stars are born

Astronomers have completed the largest-ever survey of dense gas clouds in the Milky Way—pockets shrouded in gas and dust where new stars are being …

Universe

APOD: The Great Carina Nebula (2013 Oct 15) Image Credit & Copyright: Lorand Fenyes http://apod.nasa.gov/apod/ap131015.html Explanation: A jewel of the southern sky, the Great Carina Nebula, also known as NGC 3372, spans over 300 light-years, one of our galaxy's largest star forming regions. Like the smaller, more northerly Great Orion Nebula, the Carina Nebula is easily visible to the unaided eye, though at a distance of 7,500 light-years it is some 5 times farther away. This gorgeous telescopic portrait reveals remarkable details of the region's glowing filaments of interstellar gas and obscuring cosmic dust clouds. Wider than the Full Moon in angular size, the field of view stretches over 300 light-years across the nebula. The Carina Nebula is home to young, extremely massive stars, including the still enigmatic variable Eta Carinae, a star with well over 100 times the mass of the Sun. Eta Carinae is the brightest star near the image center, just left of the dusty Keyhole Nebula (NGC 3324). While Eta Carinae itself maybe on the verge of a supernova explosion, X-ray images indicate that the Great Carina Nebula has been a veritable supernova factory. http://www.pleiades.hu/en/index.php Starship Asterisk* • APOD Discussion Page http://asterisk.apod.com/discuss_apod.php?date=131015 #APOD

What If Science Fiction Were Boringly Real?

The more scientifically accurate the story is, the less fun the fiction.<p>Gigantic beasts are attacking Earth's cities. Gigantic robots are designed to combat them. The design is rejected in favor of air strikes.— Hard Sci-Fi Movies (@HardSciFiMovies) October 8, 2013<p>Science fiction is a great genre, …

Ada Lovelace Day: Where are the women in science? Right here ... My top 10 female scientists

On Ada Lovelace Day, Suzi Gage considers the most influential and inspirational female scientists that have helped shape who she is – and the world as we know it.<p><b>Ada Lovelace Day</b>asks people to think about the women that have inspired them to be the person that they are today. The Day remembers the …

Mother Nature talks nanotech: data storage breakthrough

WoodyStock/Alamy<p>A new method of data storage could place 200bn pages of text on a glass plate the size of a compact disc. Photograph: WoodyStock/Alamy<p>276<p>image/jpeg<p>http://static.guim.co.uk/sys-images/Guardian/Pix/cartoons/2013/10/14/1381764372595/piles-of-books-008.jpg<p>460<p>WoodyStock/Alamy<p>A new method …

Fuel In The Fire: Burn Wood For Power Or Leave It To Nature

The record-breaking wildfire in Yosemite National Park is almost fully contained, two months after it started. The blaze calls attention to a problem across the western U.S.: After a century of having its fires routinely extinguished, the forests are overloaded with fuel.<p>A heated debate has flared …

Science quiz: test your knowledge

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Everglades sunset

An October sunset in the Florida Everglades.<p>Eleanor Imster has helped write and edit EarthSky since 1995. She was an integral part of the …

Maths is fun (sometimes)

In my secondary school, one of the maths teachers had a sign in his window saying "Maths is Fun". Of course, we often mocked this on a regular basis; we were adolescents and therefore knew everything, so poured endless scorn on the claims of teachers with the worldly cynicism of 14-year-olds.<p>But …

Mitochondria can invade cells like body snatchers

Mitochondria are able to orchestrate a cell’s future, according to a study with embryonic mice that identifies potential culprits in the origins of …

Biology

One thousand exoplanets but still no twin for Earth

Imagine Earth's twin planet: shining blue with oceans and laced with white clouds. It orbits a star that is virtually indistinguishable from the sun, and is – of course – teeming with alien life.<p>The problem is that try as they might, astronomers have not been able to find such a world. Even after …

Three planets, zodiacal light and Milky Way

This stupendous photo by Justin Ng shows the recent array of three planets seen from Earth’s Southern Hemisphere, the Milky Way and the elusive …

How To Turn Your Camera Into A Photosynthesis Detector

In about an hour, you can hack a camera to only display blue, green, and near-infrared light, which will give you a lovely view of plant life.<p>Members of Public Lab, an online civic science community, wanted to build an inexpensive tool to measure plant health. Their solution: convert an obsolete …

Climate Watcher Says He's Done With Flying

Meteorologist Eric Holthaus has made his career monitoring the Earth's climate, and he's alarmed at what he sees. After reading a new, bleak international report on climate change, Holthaus has decided one important way to reduce his carbon footprint is to give up airplane travel for good.<p>Transcript<p>…