Yellow traffic lights posed and provided an opportunity for applied mathematicians. Witness this study, published more than a half century ago: “The Problem of the Amber Signal Light in Traffic Flow,” Denos Gazis [pictured here, reportedly thrilling an audience], Robert Herman, and Alexei Maradudint, Operations Research, vol. 8, no. 1, 1960, pp. 112-132. The authors, […]
Tag: speed
Vibrostimulating the Latvian bobsleighers can produce victory (study)
With the Winter Olympics about to begin, what better time to ask, ‘Do Latvian bobsleighers have a unique advantage? Specifically, the RE21 from the Latvian Academy of Sport Education? [photo at right] Details were revealed in a 2011 paper for the LASE JOURNAL OF SPORT SCIENCE 2011/2/1 | 3 by Uģis Ciematnieks, Nauris Ķeizans, Sandis […]
How does one measure the wind speed inside a tornado?
How does one measure the wind speed inside a tornado? Bernie Vonnegut looked back at an early state-of-the-art method, and wrote a report called “Chicken Plucking as Measure of Tornado Wind Speed” [published in “Weatherwise,” October 1975, p. 217]. Vonnegut told the world why that early method, which involved a chicken carcass and a cannon, may have […]
XKCD: The physics of relativistic baseball
XKCD, Randall Munroe’s comic strip, today considers the question “What would happen if you tried to hit a baseball pitched at 90% the speed of light?” Even if you find the game of baseball to be confusing or uninteresting, the answer might please you. The drawing below is but one detail: BONUS (for baseball historians […]