Serious QuestionPosted By Paul Kammueller |
On Mars.Darrell Fichtl said:
Where do you think heaven is?
No telemarketers.
Why do you think that?
Serious QuestionPosted By Paul Kammueller |
On Mars.Darrell Fichtl said:
Where do you think heaven is?
No telemarketers.
Why do you think that?
Personal timePosted By Paul Kammueller |
Re: Cuts to the budgetPosted By Paul Kammueller |
The news is the only reason I listen to NPR. They have in depth coverage and analysis and stuff that just isn't available on the sound-bite oriented short-attention-span-theatre network news.Lee Spain said:
NPR should simply not be in the business of producing news or social commentary because they are an extension of the government.
Another Bush appointee goes!Posted By Paul Kammueller |
They pride themselves on not doing their homework. Take WMD's as an example, along with the whole global warming denial thing.Maurice Clark said:
Did he resign because of the uproar that that caused in scientific circles? No! apparently he was caught out having lied on his resume. Claimed he had a degree when he didn't. Somebody within the administration did not do their homework!
Rep soft drop Delay into politically powerful postPosted By Paul Kammueller |
Creation Sunday.Posted By Paul Kammueller |
Great World ReligionsPosted By Paul Kammueller |
Harry Drutok said:
I'm curious, from a logical standpoint did any of these make more sense to you then the others? If so, why?
AfterlifePosted By Paul Kammueller |
AfterlifePosted By Paul Kammueller |
reflector/refractor, planetary-wisePosted By Paul Kammueller |
You would need a rather huge refractor just to equal the performance of your 10" assuming the mirror's good and it's well collimated. To get some idea of relative appearances to a smaller refractor, you can make an off-axis aperture mask that stops your scope down to 4" or so (f/12.5), that will give you a bit of a feel for some of the trade-offs between aperture, obstruction and collimation.Evan Hawbaker said:
I have an f/5 10" dobsonian.
Is there a noticeable difference in quality in longer focal length refractors as opposed to fast dobs? What do you think is the lowest amount of aperture I could get for a refractor to show improvement over a light bucket on moon/planets?
Thanks for any advice.