Latest Issue of Science News

Letters to the Editor


Consider numbers
I have been a faithful subscriber to Science News for a long time, since I subscribed for my kids in the 1960s. I don’t have a degree but was a naval aviator for 32 years. I just cannot get used to converting kilometers per hour to miles per hour each time I encounter astronomical rates of speed in your articles. My flight career in the U.S. Navy began from helicopters, through patrol planes, then F-4B Phantom jets. Everything was in knots, nautical miles and Mach number. During combat tours in Vietnam we got used to kilometers, but miles and miles per hour never left us. Your use of kilometers per hour causes me to stop and convert.
Joe R. Brewer, Pensacola, Fla.

Note: To comment, Science News subscribing members must now establish a separate login relationship with Disqus. Click the Disqus icon below, enter your e-mail and click “forgot password” to reset your password. You may also log into Disqus using Facebook, Twitter or Google.

This article is available only to subscribing members. Join SSP today or Log in.