Recent Posts

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"I've never seen a camera with an equally powerful lens as an astronomical telescope. Who knew that telescope manufacturers were unnecessarily making their telescopes so large when they could pack it down into a small package and get equal results, as indicated by someone's claim on an internet forum. ::)" - Tom Bishop

The Hale telescope at Mount Palomar has no eyepiece. It is impossible to look through it as a telescope, all you can do is take pictures. Is it a telescope or a camera?

The pictures it takes require long exposures, thus an EQ mount is necessary. A large "horseshoe mount" has a motor on ti to power it at 1 rev per day, aka 15 degrees per hour. The mount is aligned to be parallel to the earth's axis. Look it up, really fascinating 1935 tech. Still used today by CalTech, UC, Cornnell, and JPL. The FAQ says "small conspiracy", but if the earth is flat they must all be some combination of stupid and/or liars.

All major astronomical telescopes use cameras, for at least 3 reasons. 1 - permamnent record for sharing and further study, 2 - film/digital can do long exposure for dimmer objects, the human eye can't, and 3- time on these telescopes is valuable, you submit request to take pic of something, they stack them up one after the other to get the most out of the telescope. I expect there is close to zero astronomers putting their eyes to a telescope and staring. Besides, they probably use spectrographs, infrared, ultraviolet, etc, to study things that are outside the wavelengths the human eye can see.

When mars was unusually close and thus the largest it ever appears, a local astronomy club had a public meeting where they lined up their telescopes from small to large, all with EQ mounts and 1 rpd motors. We looked through the eyepieces, smallest to largest, and each one you could see mars a little better. The last one had no eyepiece, it had a CCD that connected to a laptop through usb. So that telescope, you looked at a laptop screen. It used eq mount to get exactly the same image as the eyepiece telescopes, although bigger and more detailed.

I doubt that modern telescopes use film cameras any more. Why bother with developing and cost, just get a shareable permanent image in a file. Here are a bunch of digital cameras made to screw on to telescope eyepiece mounts:

https://www.highpointscientific.com/telescope-accessories/astro-photography/ccd-cameras

Telescope/cameras that are physically larger collect more light and so can see dimmer objects. This is why owls and other night hunters have big eyes. The only part of the telescope that can't be miniaturized with adequate results is the optics. You can make a tiny telescope/camera, but it won;t see very much. Your cell phone is a telescope, just set it to magnify. It's not a good one, but you can buy an external lens and make it betterm or even better, mount your cell phone to a telescope:



A telescope is, or can be a camera. A single lens reflex camera allows the photographer to look through the same lens as the film (or CCD) will see, with a telephoto lens , it is literally both a telescope and a camera.

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Arts & Entertainment / Re: Rama Does Acting
« Last post by junker on Today at 05:47:25 PM »
Rama reminds me of Jon Lajoie.
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Arts & Entertainment / Re: Rama Does Acting
« Last post by Rama Set on Today at 05:40:52 PM »
EDIT: Legendary thumbnail
That's avatar material right there, just saying.

Also, I know you know this already, but Thork is wrong about everything, all the time, on purpose.

I am not convinced about how volitional he is.

Quote
Take his criticisms as compliments.

I absoutely did.
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Arts & Entertainment / Re: Rama Does Acting
« Last post by Pete Svarrior on Today at 05:12:03 PM »
EDIT: Legendary thumbnail
That's avatar material right there, just saying.

Also, I know you know this already, but Thork is wrong about everything, all the time, on purpose. Take his criticisms as compliments.
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Arts & Entertainment / Re: Rama Does Acting
« Last post by Rama Set on Today at 04:40:46 PM »
The second run was way better, I see what you mean by big energy.

It just frees everything up.

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Also my mom's name is Cheryl.  >:(

Tell her I say "what's up".
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Arts & Entertainment / Re: Rama Does Acting
« Last post by rooster on Today at 04:35:59 PM »
The second run was way better, I see what you mean by big energy.

Also my mom's name is Cheryl.  >:(
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Arts & Entertainment / Re: Rama Does Acting
« Last post by Rama Set on Today at 04:09:58 PM »
Well you've ruled out comedy. I guess you are quickly eliminating your weaknesses so this is great progress.

There is a good chance you didn't understand what you were watching, so you will understand that I don't take you seriously.
There is an equally good chance that your last video was 💩

Thanks for the input.  Now can you go admit you were wrong about vaccination in australia already, or do you just feel like running all day?
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Arts & Entertainment / Re: Rama Does Acting
« Last post by Dr David Thork on Today at 04:06:13 PM »
Well you've ruled out comedy. I guess you are quickly eliminating your weaknesses so this is great progress.

There is a good chance you didn't understand what you were watching, so you will understand that I don't take you seriously.
There is an equally good chance that your last video was 💩
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Arts & Entertainment / Re: Rama Does Acting
« Last post by Rama Set on Today at 03:43:21 PM »
Well you've ruled out comedy. I guess you are quickly eliminating your weaknesses so this is great progress.

There is a good chance you didn't understand what you were watching, so you will understand that I don't take you seriously.
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Arts & Entertainment / 2022 Six Nations Championship
« Last post by xasop on Today at 03:43:03 PM »
The Six Nations kicks off next week in Dublin, with Ireland v Wales. I will, of course, be supporting Ireland. Wikipedia has the full list of matches, but for next week, we have:
  • February 05, 2022, 02:15:00 PM — Ireland–Wales (Dublin)
  • February 05, 2022, 04:45:00 PM — Scotland–England (Edinburgh)
  • February 06, 2022, 03:00:00 PM — France–Italy (Saint-Denis)