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'A Beautiful Planet': A 3D Film of Earth from Space

The new IMAX documentary "A Beautiful Planet," filmed by astronauts on the International Space Station, illuminates life on the station and the …

3tags.org is coming soon

Did Earth’s magnetic field collapse for 2 hours on April 23?

No, Earth’s magnetic field did not collapse for 2 hours on April 23. The erroneous story, which is still spreading, originated with a glitch in a …

Why Does Gravity Move At The Speed Of Light?

If you looked out at the Sun across the 93 million miles of space that separate our world from our nearest star, the light you’re seeing isn’t from the Sun as it is right now, but rather as it was some 8 minutes and 20 seconds ago. This is because as fast as light is — moving at the speed of light …

Physics

The Beauty of Uncertainty: How Heisenberg Invented Quantum Mechanics, Told in Jazz

Quantum mechanics and the combinatorial nature of creativity, set to song.<p>Seven decades after Henry David Thoreau explored the limits of knowledge and the value of “useful ignorance,” a very different intellectual titan, in a very different era, applied this philosophy to a very different field: In …

Angela Merkel's incredible rise from quantum chemist to the world's most powerful woman

Germany's Angela Merkel is the undisputed leader of her political party, and she faces hardly any opposition in her now third parliamentary term as chancellor.<p>In honor of the Bundeskanzlerin's birthday, here's the story of Merkel's rise from humble beginnings under an oppressive East German regime …

A Simple Way To Retrieve Info You Lost In A Black Hole

Just an easy quantum procedure<p>Black holes are full of conundrums. Like, what would happen if you threw a book inside one of these gravity wells? The theory of general relativity (the physics laws that govern really big things in the universe) predicts that the book would disappear forever. But …

Harnessing 'Spooky Action at a Distance' To Make a Better Battery

Quantum entanglement exploiting 'quantacells' are still a ways off, but here's proof that it works.<p>While there are some pretty serious hurdles in between quantacell theory and quantacell realization, an international group of physicists has at least offered a tantalizing hint of the potential of …

Great Books For Non-Physicists Who Want To Understand Quantum Physics

A few times last week at the Schrödinger Sessions workshop, I made reference to books that I think do a good job with particular aspects of quantum physics (in addition to the one that I wrote, that is…). At the end of the workshop, some of the writers asked if I had a list of those. A couple of …

Quantum Mechanics

Face the facts people, there is no life on Mars

The Universe is big. Huge. But we're so alone. Get used to it<p>Suddenly, space is getting interesting again. After decades of going boldly nowhere in low Earth orbit, Man, or rather his robotic emissaries, have made some startling discoveries in our Solar System.<p>Cold, distant Pluto is – who would …

Planetary Habitability