In December 2014, Google introduced a reCAPTCHA checkbox that let many users skip distorted letters while the system weighed browser characteristics and a Google tracking cookie before deciding whether to show another challengeSeptember 9, 2026
When Bell Labs engineer Karl Jansky pointed a rotating antenna at the sky in 1932 looking for sources of transatlantic radio static, he kept picking up a faint hiss that peaked every 23 hours and 56 minutes, and he eventually realized he had become the first human to hear the center of the Milky Way. Saving Tips June 5, 2026 In the summer of 1932, a radio engineer named Karl Jansky was standing in a field in New Jersey, next…
