How do they measure sea level?

Browse the article How do they measure sea level?

Forward this article to five of your friends.

Your Name:

Your E-mail:

Friend #1 E-mail:

Friend #2 E-mail:

Friend #3 E-mail:

Friend #4 E-mail:

Friend #5 E-mail:

Your Message:




Please enter the characters you see above:
This helps HowStuffWorks prevent automated emails.

SEA LEVEL BOOKS

Jules Verne - Twenty Thousand Leagues Under the Sea: Level 1, Penguin Readers

Release Date: March 30, 2005

See It
$8.08 - $9.27

Susan G. Purdy - Pie in the Sky: Successful Baking at High Altitudes 100 Cakes, Pies, Cookies, Breads, and Pastries Home-Tested for Baking at Sea Level, 3,000, 5,000, 7,000, and 10,

Release Date: June 01, 2005

See It
$13 - $13

Lisa Miles - Diego's Deep-Sea Mission: Follow the Reader Level 1

Release Date: July 01, 2008

See It
$17 - $25