July 27, 2026

Coronavirus disease 2019

COVID-19 is a contagious disease caused by the coronavirus SARS-CoV-2. In January 2020, the disease spread worldwide, resulting in the COVID-19 pandemic. The symptoms of COVID‑19 can vary but often include fever,[7] fatigue, cough, breathing difficulties, loss of smell, and

December 6, 2025

Why Your Smoothie Separates by the Time You Sit Down

You blend a perfect glass, put it on the desk, answer two emails and come back to a pale watery layer with sludge underneath. Nothing has gone wrong with the machine. What you made was a suspension, and suspensions come