Search found 16 matches

by Ryandsimmons
Wed Nov 09, 2011 3:21 pm
Forum: Astrophysics
Topic: Is the velocity of light constant?
Replies: 6
Views: 4614

Satellites have traveled a long way, far far outside of the earths gravitational field, yet their signals etc still follow relativity.

If you were correct then the voyager probes would be way out of synch by now and it would have been noticed and measured.
by Ryandsimmons
Wed Oct 26, 2011 7:26 am
Forum: Telescopes and instruments
Topic: A bit of scope advice please: Nexstar 5,6 or 8?
Replies: 3
Views: 1372

Cheers for the info guys.

Much appreciated.
by Ryandsimmons
Mon Oct 24, 2011 8:17 am
Forum: Telescopes and instruments
Topic: A bit of scope advice please: Nexstar 5,6 or 8?
Replies: 3
Views: 1372

A bit of scope advice please: Nexstar 5,6 or 8?

So... I was in Astronomia in Dorking on Sunday looking at scopes, I want to upgrade from my Astromaster 130EQ and go for something a bit more "serious." In the cost versus benefit (not to mention portability) stakes I was quite taken by the Nexstar series. I was just wondering if people co...
by Ryandsimmons
Fri Oct 21, 2011 7:45 am
Forum: Astrophysics
Topic: Rudolfhendriques's thread.
Replies: 119
Views: 61422

Rud, I like your idea. Can you show the mathematics behind it?
by Ryandsimmons
Fri Oct 21, 2011 7:27 am
Forum: Astrophysics
Topic: Is thinking faster than light? ..
Replies: 27
Views: 10160

brian livesey wrote:The signals between synapses and neurons are electro-chemical, but thoughts are not. Thoughts are thoughts.
Erm... Thoughts ARE signals.

Theres not some mystical force that skips that bit.
by Ryandsimmons
Tue Mar 22, 2011 10:44 am
Forum: General chat
Topic: Anyone here had laser eye surgery?
Replies: 10
Views: 1421

Anyone here had laser eye surgery?

I'm just in the middle of deciding whether or not to go through with the procedure, and was wondering has anyone here had it?

I know there is the risk of night vision loss for example, but I would appreciate first hand accounts.

Cheers

Ryan
by Ryandsimmons
Tue Sep 22, 2009 11:42 am
Forum: Classifieds
Topic: Astronomical Equipment For Sale
Replies: 5
Views: 2821

I'd like to see that list as well if it is still available.
by Ryandsimmons
Wed Apr 29, 2009 2:52 pm
Forum: Absolute beginners
Topic: Upgrading from a first scope (Bresser Skylux 70)
Replies: 8
Views: 4920

You have owned one telescope more than I have, so probably know more about it than I do. I found this 80mm refractor tube for 119 pounds; it is easily portable and you should be able to put it on your mount and tripod to save wasting them. http://www.widescreen-centre.co.uk/Products/STARTRAVEL-80_8...
by Ryandsimmons
Wed Mar 11, 2009 3:26 pm
Forum: Absolute beginners
Topic: Total Beginner in need of Telescope purchase help
Replies: 7
Views: 2831

I bought a Celestron 130 EQ MD the other day and am very impressed. You can pick up the version without a motor for as little as £122 on Amazon.co.uk at the moment.

It is the first scope I have ever had so I am biased, but I think it's a lovely piece of kit for the price.
by Ryandsimmons
Tue Mar 03, 2009 6:46 pm
Forum: Astrophysics
Topic: Lets see what happens if we do this!!!!!!!!!!!!!!!!!!!!!!!!!
Replies: 45
Views: 19828

The collisions that the LHC intends producing already happen in the earth's upper atmosphere. And at much higher energies than the LHC could possibly produce. So what's the fuss about? Exactly. These collisions happen all the time in our atmosphere, however study of them is imposible. All the LHC i...
by Ryandsimmons
Mon Mar 02, 2009 10:37 am
Forum: Absolute beginners
Topic: My first night with a scope...
Replies: 3
Views: 1850

Have you figured out how to get the RA axis aligned with the Pole Star? Loosening the counterweights should not have any effect on the DEC axis, and, as you say, you run the risk of squashing your toes. I suspect that polar alignment may be your problem - you said that you picked the whole thing up...
by Ryandsimmons
Mon Mar 02, 2009 9:22 am
Forum: Absolute beginners
Topic: My first night with a scope...
Replies: 3
Views: 1850

My first night with a scope...

So I received my first scope on Friday, a Celestron 13 EQ MD, a 6 inch reflector, and thought I'd give my first impressions as someone who has never even looked through a telescope before. Some good, some very annoying. The initial setup of the scope wasn't to difficult, heavier than I expected but ...
by Ryandsimmons
Thu Feb 26, 2009 7:12 pm
Forum: Absolute beginners
Topic: Setting up an EQ mount without a north view
Replies: 3
Views: 1940

Setting up an EQ mount without a north view

I'm getting my scope delivered tomorrow and was wondering is it possible to set up an EQ mount without a view of Polaris? In the future I intend to use it on my balcony mainly which is South and East facing so I get more than 180 degrees view of the sky, plus a decent vertical view. However every gu...
by Ryandsimmons
Wed Feb 18, 2009 9:06 am
Forum: Absolute beginners
Topic: Help needed getting started
Replies: 9
Views: 3225

Hi Robin Robin said. But if you live in a flat don't get seduced by the idea of a Go To telescope, particularly a Meade ETX. The first time you use it after bedtime half your neighbours will want your guts for garters because of the noise! My LX200 has to be used manually in the early hours, the mo...
by Ryandsimmons
Mon Feb 16, 2009 6:21 pm
Forum: Absolute beginners
Topic: Help needed getting started
Replies: 9
Views: 3225

Thats great help! I am really glad to hear some positive things about viewing from a flat, there seems to be a lot of negativity and pessimism out there about even trying it.

Feeling much more confident now!