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Dear [name]:
Thank you for your inquiry to NASA of April 30, 2010.
For “Ask a Scientist” please visit: sunearth.gsfc.nasa.gov...
The NASA website, www.nasa.gov also provides valuable information to students for projects.
You are also encouraged to visit www.nasa.gov... for the latest NASA news and information. In addition, NASA invites you to consider using one or more of the following easy and convenient communications tools for receiving NASA Updates on the exciting work NASA is doing.
• Subscribe to E-mail Delivery – Simply go to www.nasa.gov, enter your e-mail address, set your delivery preferences, and choose your area(s) of interest.
• Receive Updates by RSS (Really Simple Syndication) – NASA RSS Feeds are available at www.nasa.gov...
• Join Twitter at twitter.com...
Your interest in NASA and America’s space program is greatly appreciated.
Sincerely,
Public Communications
Public Services and Protocol Division
Office of Communications
Cosmic Heliospheric Learning Center to me
show details 1:43 PM (2 hours ago)
Hello,
This message is an automated response.
Thank you for using the "Ask a Physicist" service on the Cosmicopia
website. Your submitted question has been received by our team.
This service is run by volunteer cosmic ray scientists in the NASA
Goddard Space Flight Center. We attempt to answer as many questions
as possible, but because of the volume of email we receive, we are
unfortunately often unable to answer all of them.
Please note that we will not answer homework questions or give general
information for term papers or projects. We will also not do web searches,
or answer questions whose answer may be found in our archive of previously
answered questions ( helios.gsfc.nasa.gov...&a )
or on our web site.
Also, please understand that we are busy with other projects, and it may
take some time for you to receive your answer.
Thank you.
Hi - I am away from the office from April 18th - May 17th. In my absence you can contact Cynthia Lodge (OCFO SID Director) for help.
Thanks,
Louis
The fully dark-adapted eye, in which photopigment regeneration is complete, restores retinal sensitivity to its maximal level. Rods and cones differ markedly, however, in their rate of dark adaptation. Cones attain maximum sensitivity in 5-7 minutes, while rods require 30-45 minutes or longer of absolute darkness to attain maximum sensitivity after exposure to bright light.