ARTi

The ultimate split second

Chapter 1

The speed of sound and nerves

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Chapter 2

The technology behind the blocks

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Chapter 3

Famous starting line controversies

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Chapter 4

Training the mind and muscles

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YOUR GOAL

Master of The ultimate split second

Ch 1 · The speed of sound and nerves
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dave The nerve highway to the legs

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The speed of sound and nerves

dave Time your sprint start to discover how sound and nerve speeds limit Olympic reaction times.

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dave The brain processes the bang

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dave How sound travels to the ear

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dave The physical limits of human biology

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dave Olympic 100m Reaction Time

Wait for the signal, don't you jump too fast (no, don't you go!) / A tenth of a second is the boundary line (yeah, that's the line!)

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The nerve highway to the legs

dave Electrical signals travel from the brain, down the spinal cord, to the leg muscles.

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Fun Fact

Starting line sound: In the 100m sprint, runners in outer lanes hear a traditional starting gun 0.15 seconds later than runners in inner lanes.

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The brain processes the bang

dave The auditory cortex of the brain processes the sound of the starting gun before sending a signal to the legs.

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Quiz

What is the biological limit of human reaction time to sound based on?

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Gossip

Which senses do you react to fastest?

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Quiz

Why do Olympic sprinters not hear a single traditional gun at the start line?

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Quiz

What medium does the sound of a traditional starting gun travel through to reach a sprinter's ear?

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Quiz

Which part of the brain is responsible for first processing the sound of the starting gun?

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Quiz

What is the official minimum reaction time allowed in an Olympic 100-meter sprint?

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Quiz

How long does it take for a sound wave to become an electrical signal in the inner ear?

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Quiz

What happens if an Olympic runner reacts to the starting gun in 0.095 seconds?

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Quiz

Approximately how fast do motor nerve impulses travel down the spinal cord to a runner's legs?

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