Jump to content

stargazine_ep46_banner.thumb.jpg.34e6cdd5a0856b006a0b47c6373eb9b1.jpg

Primer: Understanding night vision, averted gaze and telescope tapping


Recommended Posts

  • Replies 102
  • Created
  • Last Reply

Top Posters In This Topic

Top Posters In This Topic

Popular Posts

As a relative newbie to astronomy I can't really contribute any tutorials on nebulae and planets, but in the spirit of giving back to this forum, from where I've learnt so much, here is a short primer

I've been reading stuff on this site for a while now but I finally decided to register after reading this just to say thanks.  I learned a LOT from this article and it really helped me understand why

Hi well I have just signed up to this forum with all intentions to ask about equipment and the like. I didn't think that my first post on the forum would be this but after reading this post (one

Posted Images

Sorry Colin...Errrr....I mean Ian :p, Im afraid i just follow the crowd and presumed from earlier posts that your name was Colin, still a great post though, irrespective of what us bufoons choose to call you .;)

PS its Spiders fault, first use of "Colin" :(:D

Link to post
Share on other sites

Ian, thank you so much for posting that. That has taught me a thing or two! I was asked the other night why the side of the eye is more sensitive to light. My answer was, "because it is". Now I'll be able to give a slightly more scientific reason ;)

Link to post
Share on other sites

Well I think we've all learnt something very important about punctuation here! I'm going to hang on to this page for next time I hear someone suggesting that people shouldn't be so up-tight about good punctuation.

(Goes off to light candles at the Lynn Truss shrine.)

Link to post
Share on other sites

Fantastic thread, most impressed, although im a little bit worried now that everything i see is upside down in reality, this concerns me as i can get my head around it. Anyone else? LOL

Once again though, thank you very much Colin!!!!!

Link to post
Share on other sites
Fantastic thread, most impressed, although im a little bit worried now that everything i see is upside down in reality, this concerns me as i can get my head around it. Anyone else? LOL

.....I need that clearing up. I can not get my head around it.

Colin please help.....so is my up actually down....:icon_eek::icon_scratch::)]

Link to post
Share on other sites

Yes, it's all upside down. The cornea and lens in your eye effectively form a single (uncoated - pah!) optical element, and this projects an upside-down image onto the retina.

There was an experiment once where somebody spent a week wearing special goggles that turned everything upside down. For the first few days they spent a lot of time falling over, walking into things and stabbing themselves with forks. Then, after a few days experience with this new world, they totally got used to it. Of course, when they took the goggles off after a week they had to re-adjust all over again!

So what all this shows is that your brain soon adjusts to the input it gets. For all of us, our brains since birth have only ever seen the world upside-down - so they've long ago got used to it.

Ian

Link to post
Share on other sites
Once again though, thank you very much Colin!!!!!
.....I need that clearing up. I can not get my head around it.

Colin please help.....so is my up actually down....:icon_eek::icon_scratch::)]

ROFLMAO

It's IAN!!! Not Colin!!!!

You guys are the best..I love this place...;)

Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
  • Recently Browsing   0 members

    No registered users viewing this page.

×
×
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue. By using this site, you agree to our Terms of Use.