Search found 902 matches

by Eclipse
Thu Feb 25, 2010 2:14 pm
Forum: General chat
Topic: The One Show and laser pointers.
Replies: 33
Views: 6716

Astrocomet wrote:
So do I find them dangerous-
A bit like every knife in my kitchen, then.
by Eclipse
Thu Feb 25, 2010 1:35 pm
Forum: General chat
Topic: Global Warming
Replies: 97
Views: 13923

GeorgeC wrote:
Eclipse wrote:I am still waiting for the SARS epidemic, for the Bird Flu epidemic, for the Swine Flu epidemic. Oh, and for the AIDS pandemic - remember the adverts with the coffin?

All predicted by the same people who are predicting global warming.
Daft comment.
Probably no dafter than you are.
by Eclipse
Thu Feb 25, 2010 1:34 pm
Forum: General chat
Topic: Global Warming
Replies: 97
Views: 13923

Feb 25th, continuing massive snowfalls, longest, coldest winter for decades. And these damn fools still bleat on about this fiction of ´global warming´.
by Eclipse
Fri Feb 19, 2010 9:51 am
Forum: General chat
Topic: The One Show and laser pointers.
Replies: 33
Views: 6716

The first laser pen I bought ( how the price has come down since then, this one cost over £70! ) has a remote cable on the end, which is more convenient than pressing down on the little black button. Pens with remote cables seem to be hard to get nowadays, so I did a DIY job on a second pen I bough...
by Eclipse
Fri Feb 19, 2010 9:39 am
Forum: General chat
Topic: Global Warming
Replies: 97
Views: 13923

I am still waiting for the SARS epidemic, for the Bird Flu epidemic, for the Swine Flu epidemic. Oh, and for the AIDS pandemic - remember the adverts with the coffin? All predicted by the same people who are predicting global warming. No, global warming is the trendy new scare produced by scientists...
by Eclipse
Tue Feb 16, 2010 11:00 pm
Forum: General chat
Topic: Global Warming
Replies: 97
Views: 13923

It's a scientific fact that the planet is warming up. Look, for instance, at the fast disappearing North Polar Cap. The warming might be due solely to human-generated greenhouse gases, or, a combination of that with the fact that we're living in an interglacial period, when global warming naturally...
by Eclipse
Tue Feb 16, 2010 10:53 pm
Forum: General chat
Topic: The One Show and laser pointers.
Replies: 33
Views: 6716

Skywatchers with lower back pain find laser-pointer finders attached to their 'scopes an invaluable aid. I wouldn't part with mine. The only disappointment is that they don't work well in cold conditions, unless heated in some way. The wife´s hairdryer warms mine up nicely. And I have a 12V model t...
by Eclipse
Thu Feb 04, 2010 3:28 pm
Forum: Astrophysics
Topic: Travelling at speed of light
Replies: 5
Views: 3035

Re: Travelling at speed of light

Hi Please could someone give me an explanation on something. I heard someone saying on TV 'If you were in a space ship, travelling away from earth at the speed of light for one minute, one minute of your time would of course have passed. On earth however, 4 years would have passed in that same sing...
by Eclipse
Thu Feb 04, 2010 3:18 pm
Forum: Telescopes and instruments
Topic: Green lasers: how much power is too much?
Replies: 14
Views: 3653

astro_dt wrote:I believe the regulations are that 1mW is for recreation and 5mW is allowed for Scientific and Educational purposes.
When I worked at the Atomic Weapons Establishment we used lasers to initiate nuclear fusion - they were a tad more poweful than 5 mW though.
by Eclipse
Thu Feb 04, 2010 3:07 pm
Forum: Telescopes and instruments
Topic: Red Dot Finder
Replies: 12
Views: 3570

Hi After reading up a bit more on various reviews etc, I have decided to go for one of these. http://www.scopesnskies.com/prod/laser/pointer/green-laser-pointer%20and%20bracket%20combo/laserac666.html That laser is a mere 1 mW, and is OK for pointing in a lecture theatre, but just doesn´t cut the m...
by Eclipse
Thu Feb 04, 2010 2:44 pm
Forum: General chat
Topic: The One Show and laser pointers.
Replies: 33
Views: 6716

The Class 3B GLP I have connected to my Celestron 4SE is brilliant, just the job for helping me align the thing with the least trauma to my poor back. Not sure why some people have such a problem with modern technology, I am well past the first flush of youth myself.
by Eclipse
Sun Feb 22, 2009 1:58 pm
Forum: General chat
Topic: Where can I buy Mercury?
Replies: 18
Views: 4620

Years ago, when I taught physics, I had gallons of the stuff sloshing about. Bought it, with the rest of my supplies, from a company called Griffin & George.
I see they are now called Griffin education, they will supply 250g of the stuff for UKP22.54.
by Eclipse
Sun Feb 08, 2009 3:05 pm
Forum: General chat
Topic: Build your own solar system
Replies: 464
Views: 159665

joe wrote: I'm not suggesting you stop commenting but maybe have a little consideration for other people's feeling when they are experiencing minor problems with something they have spent a bit of money on?
OK, joe, glad you think so. I shall continue to comment on this piece of junk.
by Eclipse
Sat Feb 07, 2009 11:07 am
Forum: Absolute beginners
Topic: HELP PLEASE!!
Replies: 31
Views: 8853

If all else fails - READ THE INSTRUCTIONS.
Celestron SE scopes come with comprehensive instructions on setting up the RDF and doing your first alignment.
by Eclipse
Sat Feb 07, 2009 11:02 am
Forum: Classifieds
Topic: *FOUND* Inexpensive autoguiding reftractor
Replies: 6
Views: 2713

Autoguiding meaning ???? GoTo?? (Asking a lot for 30 quid)