# Category Archives: computing

## 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

## The 39th Root of 92

My new office space suffers from a shortage of photons, so I’ve been wiring up light fixtures. As I was snaking 14-gauge cable through the ceiling cavity, I began to wonder: Why is it called 14-gauge? I know that the … Continue reading

## Getting to Know Julia

When I first started playing with computers, back in the Pleistocene, writing a few lines of code and watching the machine carry out my instructions was enough to give me a little thrill. “Look! It can count to 10!” Today, … Continue reading

## Prime After Prime

Are the prime numbers sprinkled randomly along the number line, like windblown seeds?Of course not: Primality is not a matter of chance but a product of simple arithmetic. A number is prime if and only if no smaller positive integer … Continue reading

## Where’s My Petabyte Disk Drive?

Fourteen years ago I noted that disk drives were growing so fast I couldn’t fill them up. Between 1997 and 2002, storage capacity doubled every year, allowing me to replace a 3 gigabyte drive with a new 120 gigabyte model. … Continue reading