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In short, viruses can’t take the heat.

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E1deP TIL that it takes four or five generations of monarch butterflies to complete the annual migration from Mexico to northern USA/Canada in the spring but in the fall a single "super generation" completes the entire 3,000 mile journey.
wEb1 TIL William Shatner called out reddit for being a site for racism and hate mongering.
6NKl TIL that “runner’s high” is chemically equivalent to smoking marijuana.
VMK8D TIL On April 30th 2003, the world rocket sled speed record was broken at Holloman High Speed Test Track, New Mexico. The sled reached Mach 9, 9465 feet per second (6453 mph) producing 228,000lbs thrust over 1.4 seconds. The track speed limit is currently set at Mach 10.
ROK1 TIL while sexual sadist serial killer Peter Kürten was in a guillotine, he said to a priest, “Tell me… after my head is chopped off, will I still be able to hear, at least for a moment, the sound of my own blood gushing from the stump of my neck? That would be the pleasure to end all pleasures.”