Category Archives: computing

The Threats to the Net

My first glimpse of the World Wide Web came in 1993 on a visit to Fermilab, the physics playground near Chicago. Tom Nash, head of the computing division, showed me a screenful of text with a few highlighted phrases. When … Continue reading

Posted in computing, modern life | 3 Comments

Approximately Yours

Today, I’m told, is Rational Approximation Day. It’s 22/7 (for those who write dates in little-endian format), which differs from π by about 0.04 percent. (The big-endians among us are welcome to approximate 1/π.) Given the present state of life … Continue reading

Posted in computing, mathematics | 10 Comments

Counting Your Chickens Before They’re Pecked

It started with a brief story in the New York Times about Luke Robitaille, a 13-year-old student from Euless, Texas, who won the Raytheon Mathcounts National Competition by correctly answering the following question: In a barn, 100 chicks sit peacefully … Continue reading

Posted in biology, computing, featured, mathematics, problems and puzzles, statistics | 9 Comments

The short arm of coincidence

James Tanton tosses off number theory problems the way John D. Rockefeller handed out dimes. I wrote about one of Tanton’s problems back in January. Then a few weeks ago this tweet about factorials and squares snagged my attention, and … Continue reading

Posted in computing, featured, mathematics, problems and puzzles | 14 Comments

The secret life of tweets

On Twitter you can say anything you want as long as it fits in 140 characters. The length limit is one of those frozen accidents of history, like QWERTY and the genetic code. In olden days (2006), tweets had to … Continue reading

Posted in computing | 4 Comments