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 […]
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.