Why Can’t You Hit a Fly With Your Hand?
PLN finance
1,651 views
Ever tried to swat a fly with your bare hand — and somehow missed again? 🪰 The reason is far more impressive than simple speed.
A fly’s brain contains only around 140,000 neurons, compared with roughly 86 billion in yours. Yet in about 100 milliseconds, it can detect your hand, calculate where the threat is coming from, adjust its legs, choose an escape direction, and launch before you have fully reacted.
In this video, we explore why flies appear to experience your attack almost in slow motion, how their compound eyes detect movement, and how tiny sensory hairs feel the air your hand pushes ahead of it. We’ll also see why a fly swatter works better than your palm, how flies choose between two different escape programs, and how they perform fighter-jet-like turns in midair. 🔬
And the story gets even stranger: flies have helped scientists understand genetics, disease, biological clocks, brain wiring, hearing technology, and even drone flight.
The next time a fly escapes your hand, remember: it probably knew where you were aiming before you did. 👀
⏱️ TIMESTAMPS
00:00 — Why You Keep Missing the Fly
01:09 — The 100-Millisecond Escape Plan
02:24 — Why Flies See You in Slow Motion
04:40 — Compound Eyes, Air Sensors & Why Swatters Work
06:47 — Two Escape Modes, Fighter-Jet Turns & the Tiny Brain
11:13 — America’s War on Flies and the Fly Swatter
12:55 — How Flies Changed Genetics, Medicine & Engineering
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#Flies #Science #Biology #AnimalFacts #Neuroscience
20 Comments
Been hitting flys with my hand since the 70s. Catching them with chopsticks has proved more challenging.
Why Can’t You Hit a Fly With Your Hand?
PLN finance
1,651 views
Ever tried to swat a fly with your bare hand — and somehow missed again? 🪰 The reason is far more impressive than simple speed.
A fly’s brain contains only around 140,000 neurons, compared with roughly 86 billion in yours. Yet in about 100 milliseconds, it can detect your hand, calculate where the threat is coming from, adjust its legs, choose an escape direction, and launch before you have fully reacted.
In this video, we explore why flies appear to experience your attack almost in slow motion, how their compound eyes detect movement, and how tiny sensory hairs feel the air your hand pushes ahead of it. We’ll also see why a fly swatter works better than your palm, how flies choose between two different escape programs, and how they perform fighter-jet-like turns in midair. 🔬
And the story gets even stranger: flies have helped scientists understand genetics, disease, biological clocks, brain wiring, hearing technology, and even drone flight.
The next time a fly escapes your hand, remember: it probably knew where you were aiming before you did. 👀
⏱️ TIMESTAMPS
00:00 — Why You Keep Missing the Fly
01:09 — The 100-Millisecond Escape Plan
02:24 — Why Flies See You in Slow Motion
04:40 — Compound Eyes, Air Sensors & Why Swatters Work
06:47 — Two Escape Modes, Fighter-Jet Turns & the Tiny Brain
11:13 — America’s War on Flies and the Fly Swatter
12:55 — How Flies Changed Genetics, Medicine & Engineering
__________________________________
Related video:
Mosquitoes Don’t Bite Randomly Here’s Why They Choose You: Mosquitoes Don’t Bite Randomly Here’s Why ...
Why Can Kangaroos Never Walk Backwards?: Why Can Kangaroos Never Walk Backwards?
Why Elephants Are Physically Unable to Jump — Even as Babies: Why Elephants Are Physically Unable to Jum...
Why Every Cat on Earth Is Genetically Blind to Sweetness: Why Every Cat on Earth Is Genetically Blin...
#Flies #Science #Biology #AnimalFacts #Neuroscience