How to test the twin paradox without using a spaceship
Forget about anti-ageing creams and hair treatments. If you want to stay young, get a fast spaceship. That is what Einstein's Theory of Relativity predicted a century ago, and it is commonly known as "twin ...
Giant 'balloon of magma' inflates under Santorini
A new survey suggests that the chamber of molten rock beneath Santorini's volcano expanded 10-20 million cubic metres – up to 15 times the size of London's Olympic Stadium – between January 2011 and April ...
Land bulge clue to aviation threat from volcanoes
Bulging in land that occurs before a volcano erupts points to how much ash will be spewed into the sky, providing a useful early warning for aviation, geologists in Iceland said on Sunday.
Locata positioning hits ground at New Mexico missile range
Disappearing light: Precision measurement of an atomic transition
(Phys.org)—Modern precision measurements are spectacular feats of engineering. An excellent example is determining the passage of time. Before John Harrison's marine chronometer in the mid 18th century, ...
GPS data reveals more on mega-thrust earthquakes
US military developing geolocation system for underground
GPS getting an upgrade - for $8 billion
Women navigate more efficiently than men
Gravity variations much bigger than previously thought
A joint Australian-German research team led by Curtin University's Dr Christian Hirt has created the highest-resolution maps of Earth's gravity field to date—showing gravitational variations up to 40 percent ...
Toronto teens send Lego man into space: video
A video posted on YouTube Wednesday appeared to show the amazing voyage of a Lego man sent into space on a homemade spacecraft by two Toronto students.
Scientists shed light on riddle of Sun's explosive events
(Phys.org)—Four decades of active research and debate by the solar physics community have failed to bring consensus on what drives the sun's powerful coronal mass ejections (CMEs) that can have profound ...
US army seeks new technology to replace GPS
The US army is working to limit its dependence on GPS by developing the next generation of navigation technology, including a tiny autonomous chip, the director of the Pentagon's research agency said Wednesday.
Deciphering the mysterious math of the solar wind
(Phys.org)—Many areas of scientific research—Earth's weather, ocean currents, the outpouring of magnetic energy from the sun—require mapping out the large scale features of a complex system and its ...