Sign Up for a Free Account

This is an image preview.
Start a Free Account
to view the full image.

  • Nearly 3,000 illustrations, including video clips of neurologic disorders.

  • Every article is reviewed by our esteemed Editorial Board for accuracy and currency.

  • Full spectrum of neurology in 1,200 comprehensive articles.

  • Listen to MedLink on the go with Audio versions of each article.

Ball lightning

19th-century depiction of ball lightning (“Le globe de feu dans la salle,” or in English, “the globe of fire in the room”). (Courtesy of Wikimedia Commons. Public domain.)

Related Media