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300tube William Osman   20 September, 2016
 212,956

download youtube mp4 : Potato Cannon Speed Sensor

I built an infrared speed sensor for my potato cannon. 
More information: http://www.williamosman.com/2016/09/potato-cannon-speed-sensor.html

Yes, I could have displayed mph instead of converting from fps.

Average acceleration: 328 g's 
Acceleration time: 0.024 seconds 
Projectile energy: 211 joules 
Average power: 9250 watts ~ 12.4 horsepower

Music: http://www.newgrounds.com/audio/listen/695153

Lots of filming by: John Willner
http://www.johnwillner.com/

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