Here are a few links for your weekend reading:
- A magician-turned-mathematician uncovers a bias in coin flipping. “Preliminary analysis of the video-taped tosses suggests that a coin will land the same way it started about 51 percent of the time.” This 7-year-old Stanford news article is a fun read.
- Anatomy of a traffic jam. Northwestern professors explain how “traffic suddenly go[es] from 55 mph to zero, only to speed up a few minutes later with no sign of an accident.”
- More on traffic, this time when making left turns at intersections: “Can you ever truly design your way out of congestion.” (Hat tip to @iamreddave)
- If you haven’t read the OR vocabulary test taken by non-OR people from OR at the Beach, you need to read it.
- Feminism & science don’t socialize in the same circles. An OB-GYN insists that they should. “It is not a feminist choice to ignore science.” Spacefem (an engineer) writes about this issue, too. My engineering education has definitely helped me to interpret feminist issues more optimistically (and I would argue more accurately) than others do (this article on the gender pay gap is a great example about how much progress has been made!). But I’m not really an expert so I could be wrong.
September 9th, 2011 at 3:39 pm
Your post on traffic delays was wonderful and answered questions i have had for years. From now on I will call it the piece of paper syndrome.
September 9th, 2011 at 3:48 pm
Biased coins have a really interesting research history. You Can Load a Die, But You Can’t Bias a Coin http://www.stat.columbia.edu/~gelman/research/published/diceRev2.pdf
says they do not actually exist
5 also has a really interesting history Ignaz Semmelweis got treated really badly when he suggested germs might be killing women after childbirth “Some doctors, for instance, were offended at the suggestion that they should wash their hands; they felt that their social status as gentlemen was inconsistent with the idea that their hands could be unclean” http://en.wikipedia.org/wiki/Ignaz_Semmelweis#Discovery_of_cadaverous_poisoning
September 10th, 2011 at 10:08 am
Thanks for the link to my post! 🙂