If you comb your hair, you may have found yourself wondering how fast (in metres per second) your elbow moves as you do so. In which case, help is at hand – in the form of a recent paper published in the American Institute of Physics (AIP) Conference Proceedings. A research team from Kolej Poly-Tech […]
Tag: velocity
Polish mine shaft math exercise
Today’s Math Estimation Exercise involves this short video. Estimate the maximum speed attained by the man as he hurtles through the mineshaft. Then estimate the precision of your estimate: [vimeo]26618119[/vimeo] BONUS EXERCISE: Estimate how much salt was removed from the section of the salt mine visible in this video.