Uncategorized

  1. 18984

    You missed the papers that describe our experiments that produce ball lightning in our lab. We use a lightning-arc-producing apparatus. Clint SewardElectron Power SystemsActon, Mass. The ball-lightning article makes no mention of Nikola Tesla’s creation of ball lightning while generating megavolt discharges from gigantic Tesla coil arrays. Ted V. PowellBaldwin, N.Y.

    By Science News
  2. Physics

    Anatomy of a Lightning Ball

    Metallic fuzz, acid droplets, or other fairy dust may conjure up ball lightning (with video clips).

    By Peter Weiss
  3. Math

    Euler’s Homework

    Even the best and most prolific of mathematicians have had to do homework assignments. Famed Swiss mathematician Leonhard Euler (1707–1783) was no exception. Euler was only 14 years old when he was sent to the University of Basel in 1720 to study for the ministry.