a: aneroid barometer ~
b: vacuum

What:

"We live in a large pool of air called an atmosphere. Air pressure is the weight of all this air weighing down on us. A barometer is an instrument that measures the amount of air pressure in the air. An aneroid barometer is like a vacuum and it does not use mercury because it dangerous. The more air that is above us the higher the air pressure is."


Useful?
Writer: Jamal W.
LCC:
Where: Reference Link Has Evaporated
Date: Dec 18 2014 11:50 AM


No critique for this page.
Feel free to be the first


Please review the linked page for context.
If you can think of something better than this,
please add it to the database

Name:
required
Contact:
(email or url) optional
Topic:
Comment:

This is an anti-spam device. Are you Human?

If so, please click the circle next to 'Yes' to submit your comment