Menu Close

Articles on Albert Einstein

Displaying 1 - 20 of 79 articles

An artist’s impression of the Double Pulsar system in which the two pulsars orbit each other every 2.5 hours and send out high-energy beams that sweep across the sky. Image credit: John Rowe Animations/CSIRO

We counted 20 billion ticks of an extreme galactic clock to give Einstein’s theory of gravity its toughest test yet

Astronomers watched a pair of pulsars for 16 years to test the theory of general relativity, which has stood unchallenged for over a century.
Gravity feels like it’s pulling everything toward Earth, but why? AdventurePhoto/E+ via WikimediaCommons

Why does gravity pull us down and not up?

Gravity is something every person on Earth intuitively understands: It is what keeps you on the ground. But how come gravity pulls down, rather than pushes up? Einstein came up with the answer.
Shutterstock

Curious Kids: is light a wave or a particle?

Einstein was awarded a Nobel prize for his explanation for how light can be described as being made up of individual particles of energy under certain conditions.
Faster than light travel is the only way humans could ever get to other stars in a reasonable amount of time. Les Bossinas/NASA/Wikimedia Commons

Warp drives: Physicists give chances of faster-than-light space travel a boost

If humanity wants to travel between stars, people are going to need to travel faster than light. New research suggests that it might be possible to build warp drives and beat the galactic speed limit.
A portrait of Albert Einstein on a transformer station in St.Petersburg, Russia. (Shutterstock)

Why the h-index is a bogus measure of academic impact

The h-index has become an indicator of quality for many researchers and may influence the allocation of research funds. But some question its value.
Woodcut from Camille Flammarion’s 1888 book L'Atmosphère : météorologie populaire. The caption reads: ‘A missionary of the Middle Ages tells that he had found the point where the sky and the Earth touch’ and continues, ‘What is there, then, in this blue sky, which certainly exists, and which veils the stars during the day?’ Wikipedia

Einstein’s two mistakes

Albert Einstein may have been the ultimate example of a visionary genius, but that did not stop him from twice losing his way due to beliefs that were perhaps not so scientific.
A white dward (centre) and its companion pulsar make for an excellent natural gravitational laboratory. Mark Myers/OzGrav

Warp factor: we’ve observed a spinning star that drags the very fabric of space and time

One of Einstein’s weirder predictions is that massive, spinning objects exert a drag on space-time itself. Now an orbiting pair of unusual stars has revealed this effect in action.

Top contributors

More