Space Science and Technology
Moderator: YMix
95 posts
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Re: Space Science and Technology
by Colonel Sun » Thu Dec 16, 2010 10:38 pm
Never criticize anyone until you've walked several kilometres in their shoes.
Because
1. You're now several kilometres away; and
2. You've got their shoes.
Because
1. You're now several kilometres away; and
2. You've got their shoes.
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Colonel Sun - Posts: 6553
- Joined: Thu Aug 19, 2010 5:38 am
Re: Space Science and Technology
by Colonel Sun » Thu Dec 16, 2010 10:39 pm
Design your own demise.
Never criticize anyone until you've walked several kilometres in their shoes.
Because
1. You're now several kilometres away; and
2. You've got their shoes.
Because
1. You're now several kilometres away; and
2. You've got their shoes.
-
Colonel Sun - Posts: 6553
- Joined: Thu Aug 19, 2010 5:38 am
Re: Space Science and Technology
by Mattmovies » Fri Dec 24, 2010 3:42 pm
The Martian sunset is BLUE.
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Mattmovies - Posts: 185
- Joined: Tue Jun 22, 2010 8:02 pm
Re: Space Science and Technology
by Tinker » Fri Dec 24, 2010 4:52 pm
The canary didn't die because this mine is dangerous, it died because it's lazy and wasn't raised with a proper work ethic.
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Tinker - Posts: 7683
- Joined: Mon Jun 21, 2010 2:14 pm
- Location: In the Jeweller's workshop.
Re: Space Science and Technology
by Colonel Sun » Sat Dec 25, 2010 4:07 pm
[ Suggest 480p setting. ]
Never criticize anyone until you've walked several kilometres in their shoes.
Because
1. You're now several kilometres away; and
2. You've got their shoes.
Because
1. You're now several kilometres away; and
2. You've got their shoes.
-
Colonel Sun - Posts: 6553
- Joined: Thu Aug 19, 2010 5:38 am
Re: Space Science and Technology
by Endovelico » Sun Dec 26, 2010 11:23 pm
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Endovelico - Posts: 1309
- Joined: Mon Jun 21, 2010 2:08 pm
Re: Space Science and Technology
by Azrael » Fri Dec 31, 2010 12:33 am
It looks to me like someone just got the Nobel Prize in chemistry.
Eat and drink what you like. Speaking English is apparently what kills you.
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Azrael - Posts: 1596
- Joined: Tue Oct 19, 2010 9:50 pm
Re: Space Science and Technology
by Endovelico » Wed Jan 05, 2011 11:58 am
Meet Curiosity, the new Mars rover to be launched later this year.
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Endovelico - Posts: 1309
- Joined: Mon Jun 21, 2010 2:08 pm
Re: Space Science and Technology
by Hans Bulvai » Wed Jan 05, 2011 7:12 pm
Now I'm far from home
Spending time alone
It's time to set my demons free
Been put to the test
My mind laid to rest
I'm on a psycho holiday
Spending time alone
It's time to set my demons free
Been put to the test
My mind laid to rest
I'm on a psycho holiday
-
Hans Bulvai - Posts: 2151
- Joined: Fri Aug 20, 2010 10:06 pm
- Location: at the gate
Re: Space Science and Technology
by Colonel Sun » Wed Jan 05, 2011 9:23 pm
Never criticize anyone until you've walked several kilometres in their shoes.
Because
1. You're now several kilometres away; and
2. You've got their shoes.
Because
1. You're now several kilometres away; and
2. You've got their shoes.
-
Colonel Sun - Posts: 6553
- Joined: Thu Aug 19, 2010 5:38 am
Re: Space Science and Technology
by Colonel Sun » Wed Jan 12, 2011 8:03 pm
Discovery of the first solid exoplanet:
Never criticize anyone until you've walked several kilometres in their shoes.
Because
1. You're now several kilometres away; and
2. You've got their shoes.
Because
1. You're now several kilometres away; and
2. You've got their shoes.
-
Colonel Sun - Posts: 6553
- Joined: Thu Aug 19, 2010 5:38 am
Re: Space Science and Technology
by Colonel Sun » Mon Jan 24, 2011 10:51 pm
Never criticize anyone until you've walked several kilometres in their shoes.
Because
1. You're now several kilometres away; and
2. You've got their shoes.
Because
1. You're now several kilometres away; and
2. You've got their shoes.
-
Colonel Sun - Posts: 6553
- Joined: Thu Aug 19, 2010 5:38 am
Re: Space Science and Technology
by Colonel Sun » Mon Jan 24, 2011 10:56 pm
Never criticize anyone until you've walked several kilometres in their shoes.
Because
1. You're now several kilometres away; and
2. You've got their shoes.
Because
1. You're now several kilometres away; and
2. You've got their shoes.
-
Colonel Sun - Posts: 6553
- Joined: Thu Aug 19, 2010 5:38 am
Re: Space Science and Technology
by Hans Bulvai » Wed Feb 02, 2011 5:55 am
Now I'm far from home
Spending time alone
It's time to set my demons free
Been put to the test
My mind laid to rest
I'm on a psycho holiday
Spending time alone
It's time to set my demons free
Been put to the test
My mind laid to rest
I'm on a psycho holiday
-
Hans Bulvai - Posts: 2151
- Joined: Fri Aug 20, 2010 10:06 pm
- Location: at the gate
Re: Space Science and Technology
by Colonel Sun » Mon Feb 07, 2011 1:52 pm
Never criticize anyone until you've walked several kilometres in their shoes.
Because
1. You're now several kilometres away; and
2. You've got their shoes.
Because
1. You're now several kilometres away; and
2. You've got their shoes.
-
Colonel Sun - Posts: 6553
- Joined: Thu Aug 19, 2010 5:38 am
Re: Space Science and Technology
by Azrael » Wed Feb 09, 2011 10:58 pm
From BBC:
Two of the world's leading rocket companies are joining forces to develop a new vehicle to launch astronauts into orbit.
The bottom part of the proposed Liberty rocket would be based on the solid-fuelled boosters that help get the shuttle off the ground.
The top half would use the liquid-fuelled core-stage technology and engine that powers the Ariane 5.
The concept has been put forward by ATK from the US and Astrium from Europe.
Eat and drink what you like. Speaking English is apparently what kills you.
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Azrael - Posts: 1596
- Joined: Tue Oct 19, 2010 9:50 pm
Re: Space Science and Technology
by Endovelico » Thu Feb 17, 2011 12:23 pm
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Endovelico - Posts: 1309
- Joined: Mon Jun 21, 2010 2:08 pm
Re: Space Science and Technology
by Endovelico » Tue Feb 22, 2011 11:35 am
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Endovelico - Posts: 1309
- Joined: Mon Jun 21, 2010 2:08 pm
Re: Space Science and Technology
by CgDs » Tue Feb 22, 2011 5:35 pm
- CgDs
- Posts: 740
- Joined: Mon Jan 31, 2011 11:17 pm
Re: Space Science and Technology
by Colonel Sun » Tue Feb 22, 2011 6:45 pm
Never criticize anyone until you've walked several kilometres in their shoes.
Because
1. You're now several kilometres away; and
2. You've got their shoes.
Because
1. You're now several kilometres away; and
2. You've got their shoes.
-
Colonel Sun - Posts: 6553
- Joined: Thu Aug 19, 2010 5:38 am
Re: Space Science and Technology
by Endovelico » Sun Feb 27, 2011 3:20 pm
Meet the latest astronaut at the ISS...
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Endovelico - Posts: 1309
- Joined: Mon Jun 21, 2010 2:08 pm
Re: Space Science and Technology
by Colonel Sun » Fri Mar 18, 2011 4:38 pm
Never criticize anyone until you've walked several kilometres in their shoes.
Because
1. You're now several kilometres away; and
2. You've got their shoes.
Because
1. You're now several kilometres away; and
2. You've got their shoes.
-
Colonel Sun - Posts: 6553
- Joined: Thu Aug 19, 2010 5:38 am
Re: Space Science and Technology
by Azrael » Sat Mar 19, 2011 4:28 am
MErcury Surface, Space ENvironment, GEochemistry and Ranging
Eat and drink what you like. Speaking English is apparently what kills you.
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Azrael - Posts: 1596
- Joined: Tue Oct 19, 2010 9:50 pm
Re: Space Science and Technology
by Colonel Sun » Tue Apr 12, 2011 8:33 am
Never criticize anyone until you've walked several kilometres in their shoes.
Because
1. You're now several kilometres away; and
2. You've got their shoes.
Because
1. You're now several kilometres away; and
2. You've got their shoes.
-
Colonel Sun - Posts: 6553
- Joined: Thu Aug 19, 2010 5:38 am
Re: Space Science and Technology
by Torchwood » Tue Apr 12, 2011 9:21 am
The main barrier to colonising space is the horrendous amount of energy needed to overcome the gravity well of this planet. No way are we going to do it with rockets, far too primitive and expensive. are elegant in theory, but horribly difficult in practice -even carbon nano tubes are not strong enough.
A much better solution is a, well within the reach of current technology and materials. If re-entering space craft land on it, as well as take off, electrodynamic regenerative braking could capture a large part of re-entry energy, now wasted as heat, so make the economics look even better.
Problems:
- needs to be tethered at two points 2000 km apart, ideally near the equator, and for safety reasons over the ocean. That only leaves a few sites over the Pacific and Atlantic which are suitable, but such is the capacity of the system that is all that would be needed. Suggests these would have to be internationally co-operative projects.
- more worryingly, you cannot build a small test one easily. Not good for learning curve.
- it's going to be fun making sure that (terrestrial) aircraft don't collide with those tethering cables.
A much better solution is a, well within the reach of current technology and materials. If re-entering space craft land on it, as well as take off, electrodynamic regenerative braking could capture a large part of re-entry energy, now wasted as heat, so make the economics look even better.
Problems:
- needs to be tethered at two points 2000 km apart, ideally near the equator, and for safety reasons over the ocean. That only leaves a few sites over the Pacific and Atlantic which are suitable, but such is the capacity of the system that is all that would be needed. Suggests these would have to be internationally co-operative projects.
- more worryingly, you cannot build a small test one easily. Not good for learning curve.
- it's going to be fun making sure that (terrestrial) aircraft don't collide with those tethering cables.
Pessimism is the soft option.
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Torchwood - Posts: 699
- Joined: Mon Jun 21, 2010 9:28 pm
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