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News. Politics. Culture. Printer Cartridrges. Cocoa-nomics explained: Unwrapping the chocolate industry. 50 Unbelievable Facts About Earth. Antoinette Tuff survived a standoff with a gunman. Antoinette Tuff saved 800 students from gunmanHer actions offer survival guide to othersTuff survived because she made three key decisionsSurvival expert: "She played her part perfectly" (CNN) -- Antoinette Tuff's knees tremble as she stares at the black barrel of an AK-47.

Antoinette Tuff survived a standoff with a gunman

Her hands shake so much she can't hold a pencil. Facing her, a stocky young man dressed in black points the assault rifle at her. 'The night I invented 3D printing' Chuck Hull is the American engineer who invented 3D printingHull created the first 3D printer in 1983 and has been refining his creation ever sinceHe says the process has "blossomed" in the last few years Frankfurt, Germany (CNN) -- Call him Charlie, Charles, Chuck -- whatever you want.

'The night I invented 3D printing'

It's all okay with him. Beaming a warm smile from beneath his push-broom mustache, the softly spoken 74-year-old doesn't strike you as a pioneering innovator -- the man responsible for a breakthrough that's now driving forward the world of manufacturing. But Chuck Hull -- "in this kind of environment, it's usually 'Chuck'," he says, as he sits down with CNN in Frankfurt, Germany -- is executive vice president and chief technology officer of 3D Systems, a company built on his creation: the 3D printer. 3D printing inventor Chuck Hull. 9 things everyone should know about the drug Molly. Molly is a drug that used to be the powder or crystal form of MDMA, or EcstasyNow, Molly is more often made up of a toxic mix of lab-created chemicalsAlmost all the chemicals in Molly and other synthetic drugs come from laboratories in ChinaThe DEA says using Molly is like playing Russian roulette (CNN) -- The drug called Molly isn't what most of its users think it is.

9 things everyone should know about the drug Molly

If you Google "Molly," many articles say the drug is "pure" MDMA, the active ingredient in Ecstasy. Meteorite unveils secrets of ancient Mars. This meteorite may be the first example identified piece of ancient Martian crust on Earth, scientists say.

Meteorite unveils secrets of ancient Mars

Meteorite has materials from Mars that are 4.4 billion years oldIt has 10 to 30 times more water in it than any other Martian meteoriteScientists will analyze it for chemical traces of lifeNo fossils have been found in this meteorite (CNN) -- Its name is Black Beauty, and it has traveled a long way to tell you about its home: Mars. This meteorite, discovered in northern Africa, contains preserved materials from the Red Planet that are 4.4 billion years old, say scientists in a new study published in the journal Nature.

Black Beauty, they say, may be the first identified example of crust from ancient Mars, and its age suggests that the planet's crust formed within the first 100 million years of Mars' existence. "It's just pressing its nose against the creation of Mars," lead study author Munir Humayun, a professor at Florida State University, said of the meteorite. 19 Insanely Successful College Dropouts Prove You Don’t Need A Degree. Why Explore Space? .

Why Explore Space?

Specifically, she asked how he could suggest spending billions of dollars on such a project at a time when so many children were starving on Earth. Stuhlinger soon sent the following letter of explanation to Sister Jucunda, along with a copy of "Earthrise," the iconic photograph of Earth taken in 1968 by astronaut William Anders, from the Moon (also embedded in the transcript). His thoughtful reply was later published by NASA, and titled, "Why Explore Space? " India’s Darkest Hour. What is Sensex? How is it calculated? By J Victor on August 2nd, 2010 The SENSEX-(or SENSitve indEX) was introduced by the Bombay stock exchange on January 1 1986.

What is Sensex? How is it calculated?

Ig Nobels 2013: from attaching penises to stargazing beetles. By Dean Burnett, Cardiff University This year’s Ig Nobel prizes were awarded on September 12 at a meeting of nerds at Harvard University.

Ig Nobels 2013: from attaching penises to stargazing beetles

The prizes are given for genuine scientific research that “first makes people laugh and then makes them think”. So, at first glance, the research may strike you as somewhat baffling, surreal or even downright ridiculous. But science is rarely frivolous. Huge Reservoir of Water Discovered in Space 30 Billion Trillion Miles Away.

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Huge Reservoir of Water Discovered in Space 30 Billion Trillion Miles Away

Follow @universetoday on Twitter This artist's concept illustrates a quasar, or feeding black hole, similar to APM 08279+5255, where astronomers discovered huge amounts of water vapor. Gas and dust likely form a torus around the central black hole, with clouds of charged gas above and below. Image credit: NASA/ESA From a Caltech Press Release: Vedic Mathematics: Our Lost Treasure - Social Scribblers. “What has India given to this World?” “Nothing…” “Yes it’s nothing… But this nothing is probably the greatest invention in the history of Mathematics… The number ZERO” (The earliest encryption of Zero on Sankheda Copper Plate which dates back to 6 th century A.D was found in Gujrat.) When we think of India our heart melts for the spicy chicken tikka masala of North India, the Pav Bhajis of West India, the idli-vada-dosas of South India or the fish curry of East India.

Jack Andraka. Jack Thomas Andraka (born January 8, 1997) is an American inventor, scientist and cancer researcher.

Jack Andraka

He is known for his work in developing a new, rapid, inexpensive, and patent pending[1] method to detect an increase of a protein that indicates the presence of pancreatic, ovarian, and lung cancer during their early stages. On December 12, 2014, Andraka announced that he would be attending Stanford University as a member of the Class of 2019. Career[edit] Research and experimentation[edit] Want to Drive Safer? Switch the Radio to Coldplay. Jan 10, 2013 8:28am Carlos R.

Want to Drive Safer? Switch the Radio to Coldplay

Alvarez/WireImage/Getty Images. How to Get Up Right Away When Your Alarm Goes Off. When your alarm wakes you up in the morning, is it hard for you to get up right away? Do you find yourself hitting the snooze button and going right back to sleep? That used to be part of my daily awakening ritual too.

When my alarm would blare its infernal noise, I’d turn the damned thing off right away. Hypothetical zeolite. At present there are millions of hypothetical zeolite frameworks known. For any fixed number of vertices, these are a small faction of possible 4-regular periodic graphs, because the geometric constraints imposed by the chemistry of zeolites rules out most possibilities. A hypothetical zeolite that has not been found in nature.. Enumeration methods[edit] There are several methods for enumerating zeolite frameworks. The method of Earl et al.[1] uses simulated annealing to arrange a fixed number of tetrahedral atoms under periodic symmetry constraints. Open questions[edit] Zeolite. Zeolite thermal storage retains heat indefinitely, absorbs four times more heat than water.

Watch what happens when two supermassive black holes collide. (23) Mathematics: What is the most intriguing mathematical concept you have ever encountered. Is alcohol more dangerous than ecstasy?" Scientists in Britain are proposing a complete revamping of drug classifications in the wake of findings that reveal some major discrepancies between a drug's legality and its safeness. A study surveying health, crime and science professionals regarding the dangers of a set of 20 legal and illegal drugs, published in The Lancet in March 2007, found that alcohol and tobacco, which are legal in Britain and the United States, are considered by experts to be more dangerous than ecstasy and marijuana, which are illegal in both countries.

In Britain, under the Misuse of Drugs Act, illegal drugs (including prescription drugs sold on the street) are classified as A, B or C.