White quartz countertops, clean and eye-catching, fit comfortably with a variety of other colors and designs in kitchens and bathrooms. A popular choice when considered against other countertop ...

-Sapphire glass has a large dispersion, which means that light of different wavelengths will experience significant ...

Time crystals are like a clock that never needs winding or batteries. “In theory, it should be able to go on forever,” Zu said. In practice, time crystals are fragile and sensitive to the environment.

Right: OH-defects in young (0.3 Gyr) Variscan granites are one order of magnitude higher than in old (0.9-1.8 Gyr) Proterozoic granites from Scandinavia . The OH-content is reflected in recent ...