You might change your mind if you were the victim of a crime and the criminal was caught and brought to justice based on evidence from the surveillance system. I've noticed this happening a lot recently.
Personally, I tend to believe things like ion drive are actually much more efficent
Maybe for satellite operations (e.g. station keeping, etc.), but I think ion drives are unlikely to be used for serious long-distance spaceflight (at least for the transport of humans). There are also many problems with using ion engines in this way: inability to perform ground launch, inability to accelerate quickly, etc., etc.
I have been thinking for a while now that mobiles are becoming more and more like the ubiqitous terminals people carry round with them in Iain (M) Bank'sCulture. In the Culture, Terminals are a lifeline which no-one leave home without, albeit perhaps for safety reasons rather than the other uses of the devices (screens, recorders, light-source, etc, etc.). Anyone else had similar thoughts?
There is an optical limit or boundary which cannot be seen past - the surface of last scattering - preventing you from actually seeing right to the beginning.
More distant objects are moving away from us more rapidly than the local ones... i.e. objects further away appear redder because of the redshift: that is, the wavelength of radiation from a body appears longer (redder) that its restframe emission because it is travelling with some velocity away from us.
Adaptive optics (e.g. liquid mirrors, guide stars etc.) which cancel out the wave-front distortions caused by the atmospheres are used on Earth. Interferometry allows you to simulate a much larger aperture with a combination of smaller ones... in space there are no atmospheric effects and you can create very large arrays... result = excellent resolution.
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You might change your mind if you were the victim of a crime and the criminal was caught and brought to justice based on evidence from the surveillance system. I've noticed this happening a lot recently.
The BBC also has some info
I (for one) think that's a pretty good idea...
Starship Troopers is a spoof movie -- a parody of its genre! Not to be compared with the likes of Blade Runner
No, ion drives do not have enough thrust to achieve escape velocity (25'000 mph for Earth).
This might be what you're after: http://it.slashdot.org/article.pl?sid=04/05/20/16
According to this
I, for one, would welcome our giant Canadian-space-mech overlords!
Personally, I tend to believe things like ion drive are actually much more efficent
Maybe for satellite operations (e.g. station keeping, etc.), but I think ion drives are unlikely to be used for serious long-distance spaceflight (at least for the transport of humans). There are also many problems with using ion engines in this way: inability to perform ground launch, inability to accelerate quickly, etc., etc.
Many papers can already be accessed, at least in astronomy, for free online, e.g. NASA's ADS or the arxiv.org system.
I have been thinking for a while now that mobiles are becoming more and more like the ubiqitous terminals people carry round with them in Iain (M) Bank's Culture. In the Culture, Terminals are a lifeline which no-one leave home without, albeit perhaps for safety reasons rather than the other uses of the devices (screens, recorders, light-source, etc, etc.). Anyone else had similar thoughts?
IMHO The calculator feature is also truly inspired
We will be able to fire a stream of electricity like water out of a hose at one or many targets in a single sweep
I for one welcome our heavy distro overlords!
BBC is also following the story... IMHO if we have the means, then Hubble should be saved.
There is an optical limit or boundary which cannot be seen past - the surface of last scattering - preventing you from actually seeing right to the beginning.
More distant objects are moving away from us more rapidly than the local ones... i.e. objects further away appear redder because of the redshift: that is, the wavelength of radiation from a body appears longer (redder) that its restframe emission because it is travelling with some velocity away from us.
Adaptive optics (e.g. liquid mirrors, guide stars etc.) which cancel out the wave-front distortions caused by the atmospheres are used on Earth. Interferometry allows you to simulate a much larger aperture with a combination of smaller ones... in space there are no atmospheric effects and you can create very large arrays... result = excellent resolution.
Most missions of this kind have a long horizon... 10-15 yrs isn't that far away.
I for one welcome our mind-reading overlords
I for one welcome our cloned overlords...