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Courtesy of Kouzou Sakai/Quanta Magazine Using machine learning, string theorists are finally showing how microscopic configurations of extra dimensions translate into sets of elementary particlesthough not yet those of our universe. String theory captured the hearts and minds of many physicists decades ago because of a beautiful simplicity. Zoom in far enough on a patch of space, the…

(Yaroslav Kushta/Getty Images) When you turn on a lamp to brighten a room, you are experiencing light energy transmitted as photons, which are small, discrete quantum packets of energy.These photon…

You can’t see particles smaller than 2.5 microns. But they kill 3.4 million people a year. Climate change is going to have profound consequences on human health and survival. Most obviously, a hotter world means more heat stroke and other heat-caused deaths.

 R. Satish Babu/AFP via Getty Microplastics and nanoplastics, tiny particles shed by plastics that end up in the environment, have been linked to human health problems such as heart attacks, strokes, and death, according to a landmark study. The study found that nearly 60% of people undergoing surgery had microplastics or nanoplastics in a main…

We asked a theoretical physicist, an experimental physicist, and a professor of philosophy to weigh in. During the 20th century, researchers pushed the frontiers of science further than ever before…