Lord Almighty, I feel my temperature rising. If you live in the Northern Hemisphere, July is the beginning of the “dog days” of summer, the hottest period of the year. But you know what’s cool on a hot day? Knowledge. Grab a tall glass of lemonade, settle down in a hammock under a shady tree, and let Jeopardy! wunderkind Ken Jennings set you straight on some shamefully persistent misinformation about hot stuff.
The Debunker: Can Warm Summer Nights Cause “Heat Lightning”?
You’re sitting on your porch on a warm, humid summer night. Without warning, off on the horizon, you see flashes of lightning. After a few minutes’ pause, the lightning continues. But the whole time, you haven’t felt a drop of rain—in fact, there’s not a cloud in the sky. Even weirder, none of the lightning was accompanied by thunder! This is clearly no ordinary lightning.