Category Archives: Computer Science

Nitrate flux in the Arctic not following the decreasing NOx emissions in neighboring countries

Nitrate deposits in the Arctic remains high even after the turn of the century, despite environmental policies adopted by neighboring countries in the late 20th century to cut nitrogen oxide…

Private browsing gets more private

New system patches security holes left open by web browsers’ private-browsing CAMBRIDGE, Mass. — Today, most web browsers have private-browsing modes, in which they temporarily desist from recording the user’s…

Chat tool simplifies tricky online privacy policies

Register for an account on just about any website or download an app to your smartphone and you likely will encounter that pesky, “I certify that I’ve read and understand…

Energy-efficient encryption for the internet of things

Special-purpose chip reduces power consumption of public-key encryption by 99.75 percent, increases speed 500-fold. CAMBRIDGE, MASS.–Most sensitive web transactions are protected by public-key cryptography, a type of encryption that lets…

New depth sensors could be sensitive enough for self-driving cars

Computational method improves the resolution of time-of-flight depth sensors 1,000-fold. CAMBRIDGE, Mass. — For the past 10 years, the Camera Culture group at MIT’s Media Lab has been developing innovative imaging…

Reading a neural network’s mind

Technique illuminates the inner workings of artificial-intelligence systems that process language. CAMBRIDGE, Mass. — Neural networks, which learn to perform computational tasks by analyzing huge sets of training data, have been…

Controlling spin for memory storage

Using computer simulations, researchers are learning how lasers might be used to switch how electrons spin within magnetic materials, making room for faster magnetic memory devices. Tohoku University researchers have…

Optoelectronics origami: An easy-to-make, double-duty curved image sensor

Cellphone users rely on their phone cameras to capture virtually every aspect of their lives. Far too often, however, they end up with photos that are a sub-par reproduction of…

Molecular magnetism packs power with “messenger electron”

Electrons can be a persuasive bunch, or at least, a talkative bunch, according to new work from John Berry’s lab at the University of Wisconsin–Madison. The spins of unpaired electrons…

Researchers develop flexible, stretchable photonic devices

CAMBRIDGE, Mass. — Researchers at MIT and several other institutions have developed a method for making photonic devices — similar to electronic devices but based on light rather than electricity…