Order doesn’t always form perfectly—and those imperfections can be surprisingly powerful. In materials like liquid crystals, tiny “defects” emerge when symmetry breaks, shaping everything from cosmic ...

I RECEIVED a few days ago Sir Wm. J. Herschel's brochure, “The Origin of Finger-Printing.” His object–in, addition to examining other claims to this method—is stated to be the desire to place on ...

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Senior U.S. officials met repeatedly this week to review potential military options in Venezuela, while U.S. President Donald Trump said he has “largely made up his mind” on next steps, as legal ...