Sunday, October 15


Sir Francis Beaufort (1774-1857) was an English admiral and hydrographer who devised and gave his name to a scale of wind velocity, the Beaufort scale or Beaufort's scale. The scale ranges from nought or zero (eg. calm, or conditions in which smoke rises vertically) to twelve (hurricane force winds above seventy-five mph).

Beaufort devised his scale in 1805 ( the year of the Battle of Trafalgar) and became the official hydrographer to the Royal Navy in 1829. 

Reactions:
Posted by Questa Learn On 10/15/2017 No comments

0 comments:

  • RSS
  • Delicious
  • Digg
  • Facebook
  • Twitter
  • Linkedin
  • Youtube

Latest Post

EDUCATION IS . . .