Uploaded July 2026 | Updated September 2026, 35 minutes ago
Can you calculate an engine's RPM just by listening to it? In this video, I show you exactly how.
A viral Formula 1 clip claims to feature a V10 revving to 21,000 RPM, but does the audio actually support that claim? Using nothing more than sound and a little math, I'll show you how to estimate engine RPM by ear...and why this famous clip doesn't add up.
Then we take the same method and apply it to real rotary engines. I'll compare the sound and frequency of my 2-rotor, 3-rotor, 4-rotor, and 5-rotor engines, explain why they sound similar to respective piston engines, and show how firing frequency creates the pitch you hear.
Whether you're into Formula 1, rotary engines, engineering, or just love understanding how things work, you'll never listen to an engine the same way again.
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Planning a fall getaway or driving back to campus? ๐ The GOOLOO A3X packs a 3000A jump starter for trucks/SUVs PLUS a built-in 150 PSI smart tire inflator! Dead batteries and flat tires are now an easy DIY fix.
๐ก Pro-Tip: Need it ASAP? Click the link below, select "Store Pickup", and grab it at your nearest Walmart todayโzero shipping delays!
Can you calculate an engine's RPM just by listening to it? In this video, I show you exactly how.
A viral Formula 1 clip claims to feature a V10 revving to 21,000 RPM, but does the audio actually support that claim? Using nothing more than sound and a little math, I'll show you how to estimate engine RPM by ear...and why this famous clip doesn't add up.
Then we take the same method and apply it to real rotary engines. I'll compare the sound and frequency of my 2-rotor, 3-rotor, 4-rotor, and 5-rotor engines, explain why they sound similar to respective piston engines, and show how firing frequency creates the pitch you hear.
Whether you're into Formula 1, rotary engines, engineering, or just love understanding how things work, you'll never listen to an engine the same way again.
๐ Fall Road Trip & Back-to-School Essential: The GOOLOO A3X 4-in-1 Savior!
๐ Check live Walmart stock here:
walmart.com/ip/GOOLOO-Car-Jump-Starter-with-Air-Compressor-3000A-Portable-Car-Battery-Booster-9-0-Gas-6-5L-Diesel-150PSI-Auto-Shutoff-Tire-Inflator-A3X-12V-Supersafe/19933750532?classType=REGULAR&from=/search
Planning a fall getaway or driving back to campus? ๐ The GOOLOO A3X packs a 3000A jump starter for trucks/SUVs PLUS a built-in 150 PSI smart tire inflator! Dead batteries and flat tires are now an easy DIY fix.
๐ก Pro-Tip: Need it ASAP? Click the link below, select "Store Pickup", and grab it at your nearest Walmart todayโzero shipping delays!










