... Mike, Are you referring to the insulation properties of cork when you say it enhances thermal stability? Why is thermal stability desirable? - Brandon...
I think it depends on your viewing targets as well. If you're into planetary, lunar, and doubles you'll appreciate the ability to park on an object and observe...
... True, although being able to park on a blank patch of sky to pull out faint DSOs is /very/ handy as well. In fact, I tend to appreciate my platform most...
Having looked around a lot at light shrouds, I decided to go in another direction (at least new to me). Instead of making a "sock" that slips down over the...
... As a kid I used to fix my mom's sewing maching when she got it jammed up. A truly impressive piece of machinery. But I'd recommend you keep quiet about...
Funny. I just got rid of a rip-stop nylon shroud in favor of a nylon-lycra "sock" type: --the ripstop nylon one flapped in the breeze and sounded like a used...
On this general issue, which system would be easier to "shorten up" when it's windy? The sock style shrouds roll up fairly readily without changing the...
... Keep in mind, though, that it's likely you're far less dark-adapted when you go out to your car in the morning that when you've been out for a while in the...
You will learn the heavens much better and more rapidly if you take the time to find objects by star hopping. My repetoir of objects is much larger and now...
Just in for a warmup- first night out in weeks. It's cold out, so I've been coming in the house periodically to warm up. Each time, my eyes have to readapt....
Wow, I like this idea. Do you have any pics you could share? Jeff Hineline ... From: bigdob@yahoogroups.com [mailto:bigdob@yahoogroups.com] On Behalf Of...
I read recently that it is not so much the color red that helps revent the loss of dark adoption as the intention of the light. As an exemple I use a night...
Due to the accident with the dog, kids, some duct tape and a sewing machine, Im not allowed to touch the sewing machine ever again,,, state mandate.. LOL LOL...
I've had this experience many times when I take a break in the warming room at the local obs. I use a computer in there that I don't have a night-vision mode ...
Jeff- I've created a folder (Greg H) with some pix of the ripstop wrap. To greg n: I didn't think of the roll-up aspect for wind...o well, back to the drawing...
... I've noticed it most when I'm driving back after an observing session. By that time, I've had opportunity to warm up, sit and rest behind the wheel for a...
This may seem like a dumb question, but I'll risk it for the sake of my #1 toy- My DOB is normally kept in our unheated porch (great-no cooldown). It's been...
Greg I'm not sure that it would crack, but as a precaution I'd bring it in then cover it with a few blankets a let it sit over night to warm slowly. If you...
Greg, While pretending to cook the other day I was melting frozen butter in one of those blue Pyrex cake pans. I thought it would be expedient to just melt the...
... is virtualy no risk other than it will fog over till it warms up bob Agreed, a quote from the S&T magazine February 2002 p.123, Four Infamous Telescope...
I just sent the following question to Roger Greenwood at Astrocrumb, maker of the filter slide. Anyone have any experience with this or the obstruction issue?...
Pyrex primary mirrors have been found unharmed after a house fire melted the telescope. While this test is not recommended to find your mirror's durability,...
Greg, The effect of the filter slide protruding into the light path is an extra diffraction spike at 45 degrees to the spider spikes (assuming a 4-vane...
I have an astrocrumb filter slide in my 20-inch Starmaster with feathertouch focuser. I had to put spacers on the inside so I could bring a couple eyepieces to...
Two alternatives to shimming, both of which have worked for me: - Shorten the truss poles. - Oversize the bottom hole in the slide, so that the draw tube goes ...
Just about all of my lab glass boiling flasks etc. are composed of Pyrex. I have a favorite Erlenmeyer flask that I regularly degas distilled water in directly...
I've asked for help several times in the last few days on various topics, and each time have received almost immediate responses from the membership. It is...
