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.
Berkeley team explores sound for indoor localization
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, ...
Japan clocks keep time for 16 billion years
Japanese researchers have built a pair of clocks which they say are so accurate they will lose a second only every 16 billion years—longer than the Earth has been around.
GPS data reveals more on mega-thrust earthquakes
'Twisted rope' clue to dangerous solar storms
A "twisted rope" of magnetically-charged energy precedes solar storms that have the potential to damage satellites and electricity grids, French scientists said on Wednesday.
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.