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.
Leveraging preattentive processig. Utilizing the innate ability of our visual system allows individuals to identify differences in length more accurately than those of area. In both examples the shape on the right is 5% smaller than the shape on the left.
