Return to the Cloudy Nights Telescope Reviews home pageAstronomics discounts for Cloudy Nights members
· Get a Cloudy Nights T-Shirt · Submit a Review / Article

Click here if you are having trouble logging into the forums

Privacy Policy | Please read our Terms of Service | Signup and Troubleshooting FAQ | Problems? PM a Red or a Green Gu… uh, User

General Astronomy >> Outreach

Pages: 1 | 2 | 3 | (show all)

Reged: 11/13/06

Loc: Prescott, AZ
Re: Most Interesting Questions new [Re: Ira]
      #6037485 - 08/20/13 11:25 PM

Magnification becomes completely ambiguous with a video display. You double your magnification by halving your distance to the screen.


Post Extras: Print Post   Remind Me!   Notify Moderator  

Reged: 06/15/11

Re: Most Interesting Questions new [Re: gravitino]
      #6037764 - 08/21/13 06:34 AM



"This thing has great resolution. How many pixels does it have?"

Cool question. In this case, your EYE is acting in place of the camera, so the each individual receptor cell is like a pixel. If you assume you are only using the rods (non-color sensitive cells on your retina) in the dark, then there are about 120 million rods. If a megapixel is 1 million pixels, that is about 120 megapixels. :-)

Clear skies,
-- Shane

Very interesting. I'd given some more thought to it, but assuming each rod as a pixel never occurred me. I suppose if I ever get that question again, I'll have an answer!


Post Extras: Print Post   Remind Me!   Notify Moderator  
Pages: 1 | 2 | 3 | (show all)

Extra information
2 registered and 1 anonymous users are browsing this forum.

Moderator:  nitegeezer, tecmage 

Print Thread

Forum Permissions
      You cannot start new topics
      You cannot reply to topics
      HTML is disabled
      UBBCode is enabled

Thread views: 3102

Jump to

CN Forums Home

Cloudy Nights LLC
Cloudy Nights Sponsor: Astronomics