In this show: How we got from candles made out of cow fat to as much light as we want. The history of light is the history of economic growth —... Episode 534: The History Of Light Note: This episode ...

If the weather cooperates, the astronomical event April 8 could eclipse anything ever seen in Northeast Ohio. The last total solar eclipse visible here was in 1806. Over the past 218 years, there have ...

For thousands of years, getting light was a huge hassle. You had to make candles from scratch. This is not as romantic as it sounds. You had to get a cow, raise the cow, feed the cow, kill the cow, ...

In 1882, the look of the holiday season changed forever. Instead of decorating a Christmas tree with candles, Edward H. Johnson, inventor and vice president of Thomas Edison’s booming electric company ...