The extremes of Earth's Late Heavy Bombardment
On June 30, 1908 a bolide streaked across the sky in the region near the Podkamennaya Tunguska River in Russia. When it exploded, the airburst leveled more than 2,000 square kilometers of trees. It is now ...
New analysis shows a way to self-propel subatomic particles
Some physical principles have been considered immutable since the time of Isaac Newton: Light always travels in straight lines. No physical object can change its speed unless some outside force acts on it.
On quantum scales, there are many second laws of thermodynamics
New research from UCL and the Universities of Gdansk, Singapore, and Delft has uncovered additional second laws of thermodynamics which complement the ordinary second law of thermodynamics, one of the most ...
Post-Snowden, iPhone 6 encryption fans safety debate
How iron feels the heat
As you heat up a piece of iron, the arrangement of the iron atoms changes several times before melting. This unusual behavior is one reason why steel, in which iron plays a starring role, is so sturdy and ...
Scientists seek international authority on climate geoengineering
US scientists and legal experts are calling for a strong, international authority to regulate any man-made interventions meant to combat global warming, amid fears that the technology could be harmful to ...
Black hole thermodynamics
In the 1800s scientists studying things like heat and the behavior of low density gases developed a theory known as thermodynamics. As the name suggests, this theory describes the dynamic behavior of heat ...
Law enforcement personnel using see-through radar tech
Sheriffs expand concerns about Waze mobile traffic app
A law enforcement campaign to compel Google Inc. to disable a feature in its popular Waze traffic app that lets drivers warn others about nearby police activity shifted Wednesday when a sheriffs' organization ...
New privacy battle looms after moves by Apple, Google
A new battle is brewing over privacy for mobile devices, after moves by Google and Apple to toughen the encryption of their mobile devices sparked complaints from law enforcement.
What is Hooke's Law?
The spring is a marvel of human engineering and creativity. For one, it comes in so many varieties – the compression spring, the extension spring, the torsion spring, the coil spring, etc. – all of which ...
New rooftops in France to go green
Rooftops on new buildings built in commercial zones in France must either be partially covered in plants or solar panels, under a law approved on Thursday.
Law enforcement wants popular police-tracking app disabled
Law enforcement is concerned that the popular Waze mobile traffic app by Google Inc., which provides real-time road conditions, can also be used to hunt and harm police.
Employing private security companies in war cuts costs but causes problems
New research from The University of Manchester is examining whether employing private security companies in war cuts costs but causes problems.