860 LEM Particle Bots

This robot’s parts are helpless alone, but turn smart as they team up

When you imagine a robot, you might picture R2-D2 in Star Wars, the Omnidroid from The Incredibles or the big-armed machines that build cars on an assembly line. But there’s a new robotic system that doesn’t resemble any of these. Instead, it looks like some kids forgot to pick up their toys. The robot is a collection of plastic, neon-green […]

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Test

Settling the Score

The debate over one of the most contested exams in medical education comes to a head. The next few months may bring a seismic shift to a medical school milestone, the United States Medical Licensing Exam (USMLE) Step 1. Aspiring doctors typically take it after their second year of medical school, and a good score

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BEC

Life at the bottom

What does Absolute Zero mean? Temperature tends to be relative — the air is below freezing, her fever is above normal. But scientists probe the extreme ends of the spectrum of what’s called absolute temperature: At the upper limit, absolute hot is a theoretical furnace where the laws of physics melt away. On the flip side, absolute zero —

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860 Main Drowningcar 1

What is attribution science?

Climate and weather are related — but not the same. Climate describes patterns of weather in an area over long stretches of time. Weather refers to specific events, such as hot days or thunderstorms. Heat waves, droughts, wildfires, hurricanes, tornadoes and floods are all examples of extreme weather. When extreme weather occurs, people often want to know if climate

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R20190920 Cover 2

Extreme Weather: Will Global Warming Produce More Disasters?

Climate scientists say that rising global temperatures caused by greenhouse gas emissions are making some extreme weather events increasingly likely and severe. They predict that heat waves, wildfires, hurricanes and other weather-related disasters will continue to set records and send damage costs soaring, even as countries around the world pledge to reduce emissions in response

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860 Units Of Measure

Scientist vote to fix the world’s weight-loss problem

November is election time, and not only for voters in the United States. On November 16, hundreds of scientists will gather in Paris, France, for the most unusual election this year, if not this century. Maybe ever. The voting scientists won’t be choosing new leaders or passing new laws. They’ll be voting on something more

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