Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock () or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
This instrument is an electromagnet that is used for measuring the variation of induced magnetization in standard-sized paleomagnetic samples. Applied fields range from 0 to 700 milliTesla.
Public Domain.
