- Business Insider - Aylin Woodward
Some symptoms of COVID-19 overlap with those of the common cold, allergies, and the flu. That can make it tricky to diagnose without a test. The coronavirus generally affects the lungs and commonly causes...
- Popular Mechanics - By Caroline Delbert
Here's how to try it. The math wizards at Numberphile have brought back an age-old multiplying algorithm known as halves and doubles, peasant math, Egyptian math, or—as math presenter Johnny Ball describes...