One of the great successes of 20th-century physics was the quantum mechanical description of solids. This allowed scientists to understand for the first time how and why certain materials conduct ...

All products featured here are independently selected by our editors and writers. If you buy something through links on our site, Mashable may earn an affiliate commission. Walker Scobell in "Percy ...

Two Palestinian youth react to the news of the ceasefire between Israel and Hamas from Khan Younis. Ramadan Abed/Reuters A long-awaited ceasefire between Israel and Hamas is finally underway, and now ...

The Rolling Square AirNotch Pro Dual finder tags are water- and dust-resistant, last up to 20 months, and attach securely to almost anything.