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The speed of sound is much slower than the speed of light.

by cringeyjokesman September 3, 2022, 10:40 pm

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Drivers who speed up when they see someone trying to pass them, why ?

by QuestionGuy September 3, 2022, 4:14 am

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Goldenrod Land Speed Car

by HistoryBuff August 27, 2022, 8:02 pm

7 Points
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Speed dating

by cringeyjokesman August 20, 2022, 10:58 pm

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5 Comments

TIL a US train company plans to connect major Northeast metropolitan hubs, including a one-hour service from DC to NYC, with the world’s fastest high-speed trains (operational speed of 310 mph – 500 km/h)

by whatilearned August 18, 2022, 7:11 am

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TIL the Japanese L0 Series are the world’s fastest trains. With a record speed of 603 km/h (375 mph). And an operational speed of 500 km/h (311 mph). With these, a trip from Los Angeles to New-York would take about 8 hours.

by whatilearned August 18, 2022, 6:08 am

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TIL that the black mamba is the most feared snake in Africa because of its size, aggression, venom toxicity and speed of onset of symptoms following envenomation.

by whatilearned August 15, 2022, 5:41 pm

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TIL A line with knots tied about every 47 feet was attached to a “log.” The log was tossed overboard while the attached log line would continue trailing out from the ship. After 28 seconds the number of knots that had passed overboard was counted and the resulting number was the speed of the ship.

by whatilearned August 9, 2022, 7:17 pm

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TIL recumbent bicycles are more aerodynamic and holds the world speed record for a bicycle. They were banned from racing by the Union Cycliste INternationale in 1934.

by whatilearned August 9, 2022, 3:13 am

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I got pulled over for going 7 mph over the speed limit.

by CopyPastaArchive August 8, 2022, 7:01 am

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TIL sound travels at 343 m/s in air, 1,481 m/s in water (almost 4.3 times as fast) and at 5,120 m/s in iron (almost 15 times as fast) and in diamond sound travels at 12,000 metres per second (39,000 ft/s),[2]— about 35 times its speed in air because of how exceptionally stiff diamond is.

by whatilearned August 5, 2022, 3:20 am

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TIL roadrunners are actually much slower than coyotes. A roadrunner sprints at about 20 mph (or 32 km/h), whereas a coyote’s top speed can reach over 40 mph (or 64 km/h).

by whatilearned August 4, 2022, 9:31 pm

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