Ian Pearse
Mars
Apollo (and space) enthusiast
Posts: 308
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Post by Ian Pearse on Aug 15, 2007 14:25:01 GMT -4
Some nice shots of the PLSS antenna on that clip too, appearing and disappearing as the angle changes, and even being silhouetted against the background surface features.
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Ian Pearse
Mars
Apollo (and space) enthusiast
Posts: 308
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Post by Ian Pearse on Mar 14, 2008 4:28:12 GMT -4
The Selene orbit is at 100km and, as PhantomWolf said, resolution is 10m. The pictures still look stunning.
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Ian Pearse
Mars
Apollo (and space) enthusiast
Posts: 308
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Post by Ian Pearse on Mar 13, 2008 8:44:50 GMT -4
I've just been watching some of the HD pictures coming back from Selene (courtesy of the BBC) - shame my monitor isn't HD but never mind. Beautiful pictures they are too. The Earthrise sequence is stunning.
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Ian Pearse
Mars
Apollo (and space) enthusiast
Posts: 308
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Post by Ian Pearse on Mar 14, 2008 7:08:16 GMT -4
Those unicorn horns (invisible) must be a bit of a pain in the derriere for the pilot if he stands in the wrong place. Could he sue for occupational injury compensation?
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Ian Pearse
Mars
Apollo (and space) enthusiast
Posts: 308
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Post by Ian Pearse on Feb 29, 2008 6:17:34 GMT -4
Concorde, without a doubt. Nothing to touch it when it was flying,and nothing since, probably ever again. I never had the pleasure of flying in it, but have visited the flight deck on the ground, tried out the Captain's seat for size . I also have a very good model of it in MS Flight Sim 2004 which I am learning slowly... Incredible aeroplane. Sad it won't be flying again. To see a Concorde take-off from close range was an unforgettable experience. I used to see them daily in my previous location.
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Ian Pearse
Mars
Apollo (and space) enthusiast
Posts: 308
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Post by Ian Pearse on Feb 29, 2008 9:02:12 GMT -4
Lunar module, what else? Looks like it was cobbled together from bits and pieces, gawky, ungainly but, boy, did it do the job! ;D
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Ian Pearse
Mars
Apollo (and space) enthusiast
Posts: 308
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Post by Ian Pearse on Feb 23, 2008 7:26:37 GMT -4
I believe they tested an ASAT missile back in 1985, launched from an aircraft. It worked. Would they need to do it again? Personally, I'm not too worried about the motive behind it all. They seem to have taken care of a potentially toxic problem in a an effective manner.
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Ian Pearse
Mars
Apollo (and space) enthusiast
Posts: 308
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Post by Ian Pearse on Feb 22, 2008 9:27:01 GMT -4
Our current pet is a guinea-pig called Truffle. Brown, black and white with the "rosette" hair pattern, rather than smooth. Funny creatures. he likes to walk around the ground floor as we change his cage, and I swear he has a squeaker stuck on one of his feet - you can tell where he's going by following the "squeak.... squeak" as he walks. ;D
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Ian Pearse
Mars
Apollo (and space) enthusiast
Posts: 308
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Post by Ian Pearse on Feb 22, 2008 14:35:44 GMT -4
As promised, the Cryptosian spaceship: From the Dan Dare story "The Man From Nowhere" first published in the late 1950's, and dawn by Frank Hampson and Don Harley. All their ships were great - the space fleet ones being traditional rockets with glass noses (exept for Dan's flyer Anastasia) but the alien ships were really out of this world (no pun intended....well, maybe a bit ;D).
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Ian Pearse
Mars
Apollo (and space) enthusiast
Posts: 308
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Post by Ian Pearse on Feb 22, 2008 5:07:24 GMT -4
Yo! Blakes Seven! Woo woo! Ok, now I've got that out of my system.. I like the Liberator too. I also like the Eagles from Space:1999 (I have one of the die-cast ones too) and the Enterprises from Star Trek. My favourite: probably the Cryptosian (if I remember correctly) ship from a Dan Dare story in Eagle comic. The ship designs in those stories were amazing. I'll see if I can scan a picture and add it.
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Ian Pearse
Mars
Apollo (and space) enthusiast
Posts: 308
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Post by Ian Pearse on Feb 22, 2008 14:09:38 GMT -4
The same guy is now trying to say that Newton's 2nd and 3rd laws are wrong. Making me wrack my brains to ocme up with intersting arguments to use. Yes, maybe I shouldn't expend the effort, but it's fun and good revision of stuff I learned a long time ago and have mostly forgotten. And, you never know, someone might benefit from it!
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Ian Pearse
Mars
Apollo (and space) enthusiast
Posts: 308
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Post by Ian Pearse on Feb 20, 2008 18:42:27 GMT -4
I'm having some fun on a Youtube site where a russian (I think) guy is trying to show copernicus was wrong and that the earth is the centre of the universe. It's making me do lots of digging around and calculations... really good for the brain. It'll be interesting to see how far it goes. I still can't quite decide whether he is serious or just having a joke... If I've done this right, this is the link: www.youtube.com/watch?v=dNW-Kn1lqRE&feature=related
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Ian Pearse
Mars
Apollo (and space) enthusiast
Posts: 308
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Post by Ian Pearse on Feb 20, 2008 14:51:34 GMT -4
From reading about Concorde, I gather the sonic boom is continuous once it has passed the barrier. You hear it once as the shock wave passes over you. People strung out along the path of the vehicle would hear the bangs in sequence until it decelerated again.
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Ian Pearse
Mars
Apollo (and space) enthusiast
Posts: 308
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Post by Ian Pearse on Feb 20, 2008 14:24:01 GMT -4
The same as Concorde.. one off the pointy bit at the front, one off the pointy bit at the back ;D
What intrigued me more was the type of noise. I've heard one or two real booms, and a couple of recordings of Concorde's boom, and they were booms, i.e. quite a deep sound. The shuttle ones were distinct "cracks", a shorter, higher-pitched sound. Any idea why that might be?
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Ian Pearse
Mars
Apollo (and space) enthusiast
Posts: 308
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Post by Ian Pearse on Feb 20, 2008 13:47:28 GMT -4
I watched the landing of Atlantis this evening - well done folks! - and noticed the sonic boom consised of 2 distinct cracks, almost like pistol shots. It may have been something to do with the recording technology, of course, but it was quite unlike any sonic boom I've heard before. I know Concorde had a very distinctive double-boom, and it was a boom too, quite a deep note.
So what affects the nature of the "boom"? The shape of the object concerned, and the size, I'm sure. Anything else?
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