Archaeology

Centuries of child labor left lasting spinal damage in Dutch children, study finds

Children in the postmedieval Dutch workforce worked so hard that their spines became worn and deformed, with some children affected before they even had a chance to lose their baby teeth, a new study published in the International ...

General Physics

How plastic welds retain a molecular 'memory' of their former surfaces to strengthen pipe joints

Welding plastic is a critically important part of everyday engineering—especially for preventing leaks in underground water and gas pipes. For decades, engineers have understood that a properly welded joint in polyethylene ...

Light-powered soft robots that can keep jumping forever

Researchers from North Carolina State University have created teardrop-shaped soft robots that leap upward or forward when exposed to infrared light—and will keep jumping as long as the light is present. The work demonstrates ...

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Medical Xpress

Tech Xplore

New transistor brings high voltage to microchip scale

Inside every electronic device, the flow of electricity is controlled by a switch called a transistor. For decades, these switches were made from silicon. More recently, engineers have turned to a material called gallium ...

Naked photobombing comet found in public image

Sometimes images are released before anyone realizes they have been photobombed, meaning something unexpected showed up in the background. A team of researchers found a naked photobombing comet in publicly available archival ...

3D atomic imaging reveals a new pathway to crystal formation

The most common scientific approach for thinking about how condensation, freezing and other phase transitions begin is based in classical nucleation theory, which was developed about a century ago. Thousands of experiments ...

Erasable semiconductor is programmed with light

Researchers at Princeton Engineering have created a semiconductor with unique properties: It is just a few molecules thick and can repeatedly change its properties in response to light. This is a step toward building more ...

Scientists give aircraft composite waste a second life

Researchers from the National University of Singapore (NUS) have developed a method to turn waste from the tough, lightweight composites used in aircraft and other high-performance structures into aerogels that could be used ...