Department of Energy Argonne National Laboratory Office of Science NEWTON's Homepage NEWTON's Homepage
NEWTON, Ask A Scientist!
NEWTON Home Page NEWTON Teachers Visit Our Archives Ask A Question How To Ask A Question Question of the Week Our Expert Scientists Volunteer at NEWTON! Frequently Asked Questions Referencing NEWTON About NEWTON About Ask A Scientist Education At Argonne Indigo
Name: Sean
Status: student
Age: 12
Location: N/A
Country: N/A
Date: 1999 


Question:
Is indigo really a color in the rainbow?


Replies:
Yes, Sean, it is. But it is a color that the human eye is not very sensitive to so we do not see it very well. It's frequency is between blue and violet, both of which we see better.

Larry Krengel


No. Although all the blues in a rainbow do contain some red, there is no place in the rainbow where a deep enough blue combine with enough red to make indigo. But isn't ROYGIV easier to pronounce than ROYGBV?

Tim Mooney



Click here to return to the Physics Archives

NEWTON is an electronic community for Science, Math, and Computer Science K-12 Educators, sponsored and operated by Argonne National Laboratory's Educational Programs, Andrew Skipor, Ph.D., Head of Educational Programs.

For assistance with NEWTON contact a System Operator (help@newton.dep.anl.gov), or at Argonne's Educational Programs

NEWTON AND ASK A SCIENTIST
Educational Programs
Building 360
9700 S. Cass Ave.
Argonne, Illinois
60439-4845, USA
Update: June 2012
Weclome To Newton

Argonne National Laboratory