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(PhysOrg.com) -- Scientists have solved one of the printing industry's greatest challenges - whether a liquid thread will break up into drops.

After the furies of birth, the mature cosmos now evolves more slowly.

Time’s seemingly inexorable march has always provoked interest in, and speculation about, the far future of the cosmos. The usual picture is grim. Five billion years from now the sun will puff itself into a red giant star and swallow the inner solar system before slowly fading to black

On March 1, 1962, thousands of people lined New York City s Broadway.

New research, published by the National Physical Laboratory (NPL), takes a significant step towards changing the international definition of the kilogram – which is currently based on a lump of platinum-iridium kept in Paris. NPL has produced technology capable of accurate measurements of Planck's constant, the final piece of the puzzle in moving from a physical object to a kilogram based on fundamental constants of nature. The techniques are described in a paper published in Metrologia on the 20th February.

Dilute magnetic semiconductors (DMS) have recently been a major focus of magnetic semiconductor research. A laboratory from the University of Science and Technology of China explored the feasibility of doping manganese (Mn) into zinc sulfide (ZnS) to obtain magnetic semiconductors.

“Game over” for climate change . So opines NASA climatologist Jim Hansen when it comes to the development of the Canadian tar sands.

U.S. Food and Drug Administration officials plan to investigate whether inhalable caffeine sold in lipstick-sized canisters is safe for consumers and if its manufacturer was right to brand it as a dietary supplement.

“Happy hour” is not when you might expect it to be, according to a new analysis of about half a billion Twitter messages from around the globe. On average, people are chipper when they wake up and become grouchy as the day wears on.

(PhysOrg.com) -- In the United States, ultrafast trading in financial markets between 2006 and 2011 was the underlying factor for over 18,000 extreme price changes, according to a new study.

Quantum cryptography is the ultimate secret message service. Now new research, presented at the 2012 AAAS Annual Meeting, shows it can counter even the ultimate paranoid scenario: when the equipment or even the operator is in the control of a malicious power.

Just as NASA engineers test new rocket designs in computer studies before committing themselves to full prototypes, so physicists will often model matter under various circumstances to see whether something new appears. This is especially true of atomtronics, a relatively new science devoted to creating artificial tailored materials consisting of neutral atoms held in an array with laser beams, or atoms moving along a desired track under electric or magnetic influence

QUITO, ECUADOR--Long before the Spanish conquered the Incas in 1533, and centuries before the Incas inhabited this area, the present-day site of Quito International Airport was a marshy lake surrounded by Indian settlements--the Quitus on one shore and the Ipias on the other. Between A.D.

VANCOUVER Resistance to hydraulic fracturing in the U.S. has risen steadily in recent months.

Online dating might give you something, but it’s probably not a soulmate. [More]