What's in a Word | All Blogs


See you around

By Debra Dobbins

Peripheral vision is the vision that we have on the sides of our heads. If someone says, “I saw you out of the corner of my eye,” that person has used peripheral vision.

“Peri” is a Greek word part that means around. It is included in words such as perimeter (“meter” means measure) and periscope (“scope” means look).

The illustration below shows two simple periscopes. To learn how to make one out of milk cartons and pocket mirrors, go to http://www.exploratorium.edu/science_explorer/periscope.html.

BTW, grandparents, parents and teachers all have excellent peripheral vision. It comes with the job.

Principle of the periscope. The periscope on the left uses mirrors at location "a" whereas the right uses prisms at "b". The observer is "c".

Caption and illustration courtesy of Wikipedia

 

Answers for yesterday's question on musicians in an orchestra:

pianist, cellist, tympanist, clarinetist, flutist, trombonist,
cellist, bassist, bassoonist, contrabassoonist, oboist, harpist
 


 

COMMENTS

Please Login or Register to leave a comment.




Recent Posts
A Stay at the Milky Way Motel
By Ann Driggers
Wednesday, August 27, 2014

Salute to the Little League World Series parents
By Richie Ann Ashcraft
Wednesday, August 27, 2014

Jamestown Revival Headline Grand Junction Off Road Mountain Bike Race
By David Goe
Wednesday, August 27, 2014

Reverend Horton Heat Back for More
By David Goe
Wednesday, August 27, 2014

C’mere 9th grade, I got something for you
By Robin Dearing
Monday, August 25, 2014


TOP JOBS




THE DAILY SENTINEL
734 S. Seventh St.
Grand Junction, CO 81501
970-242-5050
Editions
Subscribe to print edition
E-edition
Advertisers
Sign in to your account
Information

© 2014 Grand Junction Media, Inc.
By using this site you agree to the Visitor Agreement and the Privacy Policy