Tuesday, July 22

The Debunker: Can Warm Summer Nights Cause “Heat Lightning”?

by Ken Jennings

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.

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Tuesday, July 15

The Debunker: Did Benjamin Franklin Invent the Franklin Stove?

by Ken Jennings

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: Did Benjamin Franklin Invent the Franklin Stove?

Benjamin Franklin was certainly one of the great inventors of his time, and his lively intellect led to a series of innovations we still benefit from today: bifocals, the lightning rod, the flexible urinary catheter. Yes, every time an old person is able to finish their Sudoku while not getting struck by lightning and/or peeing his hospital bed, we have Ben Franklin to thank.

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Tuesday, July 08

The Debunker: Are Meteorites White-Hot When They Land?

by Ken Jennings

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: Are Meteorites White-Hot When They Land?

First of all, let’s settle this “shooting stars” thing once and for all. Feel free to make a wish on a streak of light in the night sky, but what you’re seeing is, of course, not a star. It’s a meteoroid—a small chunk of a comet or an asteroid. When the meteoroid enters the atmosphere, friction produces a burst of light and heat, which we call a meteor. If the whole thing doesn’t burn up during its descent, a fragment of rock may fall to Earth, at which point it becomes a meteorite. Got it? The order is asteroid -> meteoroid -> meteor -> meteorite.

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Tuesday, July 01

The Debunker: Is Human Body Temperature 98.6°?

by Ken Jennings

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: Is Human Body Temperature 98.6°?

My mom was a slave to the thermometer. A temperature of 98.6° meant that, even if I felt lousy, I was perfectly healthy and had to go to school. Anything higher meant a fever, so I could stay home and watch game shows and General Hospital. Anything lower meant I wasn’t holding the damn thing in my mouth right, and I got just one more chance before she’d go back to the medicine cabinet to get (ominous music sting!) the other thermometer.

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