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A new biologic logic gate based on proteins can perform binary calculations, serving as the first "cellular calculator," researchers say. Various combinations of components can be arranged into circuit elements, leading to specific metabolic processes inside a cell. The setup can answer mathematical questions in a similar fashion to a computer.

Same old jogging routine got you bored? Can't move your leaden legs faster than 1 and a half kms in 15 minutes? Turn into a juggernaut with Joggobot, a hovercraft that will fly above your head and motivate you to run faster.

Yesterday at E3, the gaming industry's biggest American conference, Nintendo showed up with a 30-minute video updating their upcoming Wii U console - there have been some minor changes, like the move from touch-sensitive circle-pads to real joysticks, but the biggest change is that Nintendo seems to have finally heard of the internet.

Trials for a prostate cancer drug in the US has been shut down, after the first batch of results proved so promising it was deemed unfair to then not provide the drug to the rest of the participants in the trial.

We already know that our traditional thermoelectric power sources, namely coal, are having a negative impact on our planet's climate. But, as it turns out, the reverse is also true - research has found that worldwide warming is reducing the amount of cooling water that can be used in coal and nuclear plants, and this is already causing problems for electrical grids in the US and Europe.

Is this week's Baarbarian illustration a Robert Palmer reference? Or just a horrifying singing tomato with rat backup dancers and a shiny grill? Either way it means one thing: it's time for the weekend.

Inspired by the iconic look of time bombs in old movies, software engineer Michael Krumpus set out to build an alarm clock that would make his mornings more action-packed. When the alarm goes off in defuse mode, the clock starts a 10-second countdown; the correct wire, which is randomly assigned each day, has to be cut or pulled out to stop the detonation, or the clock will "explode" with noise and flashing LEDs.

One month from today - July 1st, 2012 - is the deadline for the newest InnoCentive challenge. InnoCentive is a US organisation (linked to "the mothership" - the US edition of Popular Science) that provides, well, incentives for inventors and innovators to come up with solutions to problems. The problem this time? New super-cement...

It begins with a tweet and ends with a twisted ankle. Still, since everyone seems intent on continuing to stumble along looking down at their smartphones, Transparent Screen can help minimize accidents.

First, the bad news: In four billion years it's going to get a lot more crowded around here. The Milky Way and Andromeda galaxies are on a collision course. The good news is that a new video from NASA shows how it'll go down.

With careful training using a robotic harness, and a special chemical cocktail designed to stimulate brain cells, rats with spinal cord injuries were able to re-learn how to walk. Scientists in Switzerland say the tests suggest humans with paralysis due to spinal cord injuries may regain some nerve activity.

Scientists at the University of Eastern Finland say they hope to have an allergy vaccine on the market in five to seven years. For everything, from pollen to cat hair.

At PopSci, we're not that into exotic footwear. You have your casual shoes, your dress shoes, and maybe a couple of pairs of thongs. Having said that, even we were impressed/stunned by a pair of genetically engineered boots made almost entirely from stingray. For real.