Tagged: Einstein

The Great Eclipse of 1919 - Out of Space

Duncan Steel May 29, 2019

Measurements of photographs obtained during the total solar eclipse of 29th May 1919 were pivotal in demonstrating the veracity of Einstein’s General Theory of Relativity, turning him into a household name. The centenary of that event is now upon us, and well worthy of being remembered.  As I sit here typing on my keyboard, my favourite photo showing myself and … Read More

Black holes aren’t totally black, and other insights from Stephen Hawking’s groundbreaking work - Guest Work

Guest Author Mar 20, 2018

Christoph Adami, Michigan State University This article was originally published on The Conversation. Read the original article. Mathematical physicist and cosmologist Stephen Hawking was best known for his work exploring the relationship between black holes and quantum physics. A black hole is the remnant of a dying supermassive star that’s fallen into itself; these remnants contract … Read More

Science Tank | Schrodinger’s cat & the double slit experiment - Guest Work

Guest Author Jan 11, 2018

In 1935, an Austrian physicist named Erwin Schrödinger published his “Schrödinger’s Cat” thought experiment to explain superposition (a quantum mechanics principle stating that something exists in all possible states until it is directly observed or measured, at which point it exists only in one of its possible states). Erwin Schrödinger, staring intently at you. Wikimedia Commons. The thought … Read More

UFOs, climate change and missing airliners: how to separate fact from fiction - Guest Work

Guest Author Jun 20, 2016

By Michael J. I. Brown, Monash University If you’ve been on social media then perhaps you’ve seen the “Ancient Aliens” meme; a wild-haired alien aficionado Giorgio A. Tsoukalos attributing all manner of things to aliens. Giorgio A. Tsoukalos is a well known speculator about alien visitation to Earth. History Channel Attributing the pyramids to aliens is … Read More

What happens when LIGO texts you to say it’s detected one of Einstein’s predicted gravitational waves - Guest Work

Guest Author Feb 12, 2016

Chad Hanna, Pennsylvania State University The best thing about a day in my life on the lookout for gravitational waves is that I never know when it will begin. Like many of my colleagues working for the Laser Interferometer Gravitational-Wave Observatory (LIGO), the morning of Monday, September 14, 2015 caught me completely off-guard. For years, we’ve been … Read More

The arrow of time - Physics Stop

Marcus Wilson Mar 02, 2015

Benjamin is now two-and-two-thirds, or near enough. As ever, his grasp of physics continues to improve.  In the last few weeks, he has been picking up the idea of time.  We have a large (more accurately, LARGE) analogue clock on the wall of our lounge. He's watched me take it off the wall, change the battery and move … Read More

FTL neutrinos FTW! - misc.ience

Aimee Whitcroft Sep 23, 2011

* Ahem *  Well, not quite.              (Note: FTL = Faster Than Light) The first image, taken in 2007, of a neutrino interaction. The neutrino, coming from the left of the figure following an interaction, produces several particles identified by their tracks in the detecting 'brick'. Credit: INFN (Italian National Institute of Nuclear Physics) … Read More

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