Leap seconds have helped keep clocks synchronized with Earth’s rotation, but their time is now over – here’s why
300 glaciers have disappeared from the American West since the mid‑20th century – the survivors have a few things in common
Read More 6 minute read Engineering Quantum sensors could spot hidden damage in the thousands of US bridges rated ‘structurally deficient’ Alex Krasnok, Florida International University Every bridge has parts that drivers never see: steel buried in concrete, welds… byAlex KrasnokJune 30, 2026