Scientists say they can explain dark matter by positing a particle that links to a fifth dimension. While the “warped extra dimension” (WED) is a trademark of a popular physic ...
Examples of granular matter: multicolored plastic balls in a playground, gravel, sesame seeds and lentils (clockwise from top left). Images by Julia Kertesz, Martin Olsson, Jitender Kumar and Zyance ...
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