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Imaginary_Past777 t1_iu43zz1 wrote

Reply to comment by jados112 in TIL Devon Allen, track & field athlete/Philadelphia Eagles wide receiver, was disqualified in the World Athletic Championships for a controversial false start. The starting blocks measured his reaction time from the time the gun went off at 0.099, which is 0.001 seconds faster than legally allowed. by The_Critical_Cynic

IIRC they randomize the signals at the start of the drag races and no one actually knows when exactly it will flash from yellow to green.

Edit. Wrong. No ones knows the flash to triple amber but the move from that to green is .4

Edit 2. Just to be clear. Im saying I in fact did not recall correctly

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stangmx13 t1_iu4hhza wrote

It’s always a set time between amber and green, 0.4s for pros. That’s how perfect reaction times are possible - they know when green is coming.

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Imaginary_Past777 t1_iu4iq8l wrote

TIL... Depending on the type of racing, all three amber lights will flash simultaneously, followed four-tenths of a second later by the green light (a Pro Tree), or the three bulbs will flash consecutively five-tenths of a second apart, followed five-tenths later by the green light (a Sportsman, or full, Tree)

Still though. Thats incredibly fast. Also I saw the op article originally posted and there is a lot to it. Light travels faster than sound. The brains processing time. The speed of electricity to activate muscles. Some people can truly process faster and some top tier athletes actually have to train themselves to wait the full .1 which is ridiculous.

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shewy92 t1_iu5cklh wrote

In F1 the red lights go out randomly though.

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