S. Janitschek

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This is the best scientific argument that your brain isn't a computer

One of the most intriguing speculative arguments in physics and computer science isn't really about physics or computer science at all. It's about the brain — or more precisely, about consciousness — and it's been going on for decades. The central question: Is the brain fundamentally like a …

Computer Science

NASA orders a second SpaceX crew mission to the ISS

NASA has ordered a second mission from SpaceX to send astronauts to the International Space Station. The order is part of the Commercial Crew Program, which was started by NASA six years ago as a way of making sure the United States continues to have human access to space. NASA ordered a first …

Space Exploration

Obama is not a scientist. JAMA shouldn't pretend he is

The Journal of the American Medical Assn. recently published a very unusual article: a scientific study authored by a sitting president of the United States. That's never happened before.<p>In a sense, it's cool that President Obama cares enough about science to want to publish a paper in one of the …

Almost half of Earth's ecosystems have dropped below 'safe' levels of biodiversity — here's why that's troubling

The study, conducted by Tim Newbold, a post-doctoral scientist and the Centre for Biodiversity and Environment Research at University College London, aimed to analyze the level of biodiversity on the planet, but its impacts reach further than ecology, affecting food production, personal well-being, …

Biodiversity

3tags.org

These Are the 5 Best TED Talks Ever, According to the Guy Who Runs TED

The event's boss names the talks that have taught him the most.<p>If you're a massive TED fan like me, you've probably watched a whole lot of the compelling talks by now. But when it comes to consuming all the insights TED has to offer, even the most dedicated enthusiasts can't hold a candle to Chris …

Public Speaking

Scientist's new rewriteable 'paper' is actually made of glass or plastic

If you ask us, the idea of rewritable paper seems pretty redundant no matter how high-tech it is. Apparently that didn't cross the mind of scientists at the University of California, Riverside. See, that's where Yadong Yin and his colleagues are using special color-switching dyes (called "redox") …

Why Time Can't Go Backward: Physicists Explain

“<i>Time is what keeps everything from happening at once,</i>” wrote Ray Cummings in his 1922 science fiction novel “The Girl in the Golden Atom,” which …

Make Your Desktop Meditate with These Zen-Inspired Wallpapers

Zen is both a practice and a philosophy. The word itself, translated as "meditative state," suggests focus, calm, and simplicity. That makes …