 | | Re: Transit Time to Mars
|
|
(...) a (...) difference (...) You use Hydrogen gas as the coolant on a nuclear reactor, then vent it out the backside ('hot' as in thermally hot, not radioactive) The radiation from it is not all that intense...space is a vast area, and radiation (...) (25 years ago, 16-Dec-99, to lugnet.off-topic.geek)
|
| |
| | Re: Real Audio files
|
|
(...) I originally did this, but it is only a small clip of the song. Is there anyway to find out where a particular file is located so that I have the address for it so that I could create a link in a temporary page using NOF or MSFP? I've done (...) (25 years ago, 16-Dec-99, to lugnet.off-topic.geek)
|
| |
| | Re: Transit Time to Mars
|
|
(...) This is my cue to chant "The ringworld is unstable! the ringworld is unstable!", right? Jasper (25 years ago, 16-Dec-99, to lugnet.off-topic.geek)
|
| |
| | Re: Transit Time to Mars
|
|
(...) I refer you to: (URL) (25 years ago, 16-Dec-99, to lugnet.off-topic.geek)
|
| |
| | Re: Transit Time to Mars
|
|
(...) How do those work? and how much fallout do they leave behind, hanging in space, waiting for the next vehicle to pass through? I mean, it's not like radiation shielding isn't difficult enough already.. Anyway, what was it again, Project Orion? (...) (25 years ago, 16-Dec-99, to lugnet.off-topic.geek)
|
| |
| | Re: Real Audio files
|
|
Ryan, MIDI files are not like audio files; they are a list of instructions that tell which instrument (from a known list) to play, how long and how loud each note is, etc). There's no automated way to convert recorded audio to MIDI. There ARE many (...) (25 years ago, 16-Dec-99, to lugnet.off-topic.geek)
|
| |
| | Re: Transit Time to Mars
|
|
I think the problem with long-burn-time solid fuel engines is that the nozzle heats up so much that it erodes rapidly. Typical liquid-fueled engines cool the nozzle with the fuel just before it's burned. IsThere some Space-Age (Pardon the ancient (...) (25 years ago, 16-Dec-99, to lugnet.off-topic.geek)
|
| |
| | Re: Transit Time to Mars
|
|
(...) I didn't *say* the problem was realistic. OTOH, if you're interested in some powerful interplanetary propulsion devices, I've got an idea that just needs a few more giga-bucks to bring to completion ... Steve (25 years ago, 16-Dec-99, to lugnet.off-topic.geek)
|
| |
| | Re: Transit Time to Mars
|
|
James Powell <wx732@freenet.victoria.bc.ca> wrote in message news:FMt9In.55E@lugnet.com... (...) boosters (...) motors (...) burn (...) solid, (...) much (...) into (...) 1G (...) rocket, a (...) difference (...) Wow!..My first job was designing (...) (25 years ago, 16-Dec-99, to lugnet.off-topic.geek)
|
| |
| | Re: Transit Time to Mars
|
|
(...) Of course, when you're going *that* far, you also have to count relativistic effects. Is '1g of acceleration' from the frame of the guy on the rocket, of the frame of the guy on Earth? (Important difference...) And then you have to figure out (...) (25 years ago, 16-Dec-99, to lugnet.off-topic.geek)
|
| |
| | Re: Transit Time to Mars
|
|
Steve Bliss wrote (...) It's not. And also it's not a straight line, nor is it flat. At best, you could slingshot off the moon with a grazing orbit (about 100m at perihelion, and hit atmosphere in less than 24 hours I think. Only once per orbit, and (...) (25 years ago, 16-Dec-99, to lugnet.off-topic.geek)
|
| |
| | Re: Real Audio files
|
|
(...) is. (...) I checked out the site. The only thing I can recommend to you is to download the *.wav included on the web site. It would accomplish the same goal as recording the file as you listen to it (which you've stated you can't do due to (...) (25 years ago, 16-Dec-99, to lugnet.off-topic.geek)
|
| |
| | Re: Real Audio files
|
|
(...) As". (...) The file that I want to save is at this page, and it has its own Real Player box on the page. (URL) I try to use the windows recording program I get a message saying that another program is recording. I haven't a cle what the (...) (25 years ago, 16-Dec-99, to lugnet.off-topic.geek)
|
| |
| | Re: Transit Time to Mars
|
|
(...) (Unless you believe in subspace ruptures. ;) --Todd (25 years ago, 16-Dec-99, to lugnet.off-topic.geek)
|
| |
| | Re: Transit Time to Mars
|
|
(...) Actually, you can make them burn at almost any rate you want to. It is a question of how much exposed area there is to burn at once. The SRB motors have a * shaped hole in the middle of them right from top to bottom. This produces a very large (...) (25 years ago, 16-Dec-99, to lugnet.off-topic.geek)
|
| |
| | Re: Transit Time to Mars
|
|
Jasper Said: (...) Isn't that what the NASA guy said when they lost contact with the last martian probe? :) (Running, Ducking, and hiding under something very soild...like down a mine shaft...after all, after 30 hrs at 1 G acceleration, I don't want (...) (25 years ago, 16-Dec-99, to lugnet.off-topic.geek)
|
| |
| | Re: Real Audio files
|
|
(...) online? (...) Yeah, just click on the link (if it's on a web page) and choose "Save File As". If it's not on a web page, a.k.a you're selecting it from the Real Audio program's menu or directory, you could find the web page where it's located (...) (25 years ago, 16-Dec-99, to lugnet.off-topic.geek)
|
| |
| | Re: Transit Time to Mars
|
|
(...) No it doesn't. It takes a tremendous amount of CHEMICAL fuel, but you need to use something with a much higher specific impulse. The problem is that your chemical exhaust is going WAY too slow, hence you're not transferring much momentum. (...) (25 years ago, 16-Dec-99, to lugnet.off-topic.geek)
|
| |
| | Re: Real Audio files
|
|
(...) Right-Click on the link, save as.., look into the resulting .rm file with a text editor, copy the link you see there to your browser/favorite file-download program (I like GetRight, for my windows work), replace the pnm:// with http:// if (...) (25 years ago, 16-Dec-99, to lugnet.off-topic.geek)
|
| |
| | Re: Transit Time to Mars
|
|
(...) Don't forget that the space shuttle accelerates with only a few g relative to earth, so that's (a few + 1) when applied in space. And as someone mentioned, unless you have manufacturing in space, or very cheap earth -> LEO methods (which is (...) (25 years ago, 16-Dec-99, to lugnet.off-topic.geek)
|
| |
| | Re: Transit Time to Mars
|
|
try "anti-matter" fuel cells...(use your imagination here)...you could travel to mars and back on like 1 atom of it. (25 years ago, 16-Dec-99, to lugnet.off-topic.geek)
|
| |
| | Re: Transit Time to Mars
|
|
(...) You too? (...) Oops. Jasper (25 years ago, 16-Dec-99, to lugnet.off-topic.geek)
|
| |
| | Re: Transit Time to Mars
|
|
(...) Assume that a mile is 1.6 km, because dammit, you don't calculate these things in imperial (you'd need g in miles/sec. Ugh.) (...) All right. x == v0 * t + 0.5 * a * t x == 57.6e9 m v0 == 0 (this means I'm calculating from reaching orbit, (...) (25 years ago, 16-Dec-99, to lugnet.off-topic.geek)
|
| |
| | Re: Transit Time to Mars
|
|
(...) about (...) take (...) if you thought THAT was amazing, try it to Pluto... or to Alpha Centauri! RAH (1) did a science fact article on this, way before most of us were born. It drives home how fast you can go if you can just keep accelerating. (...) (25 years ago, 15-Dec-99, to lugnet.off-topic.geek)
|
| |
| | Re: Transit Time to Mars
|
|
(...) Paper mache rockets? The delivery system burns up with the fuel it contains? __ :-O (Edvard Munch's "The Scream") -- Bruce (25 years ago, 15-Dec-99, to lugnet.off-topic.geek)
|
| |
| | Re: Transit Time to Mars
|
|
(...) OK, can that idea then. So, what about flour and water mixtures? :o) --Todd (25 years ago, 15-Dec-99, to lugnet.off-topic.geek)
|
| |
| | Re: Transit Time to Mars
|
|
(...) Solid fuel rockets are essentially big fireworks: ya light 'em and they burn until nothing is left. They are great bang for your buck, but they don't last long. And in your scenario, you still have to get the boosters up to the space station. (...) (25 years ago, 15-Dec-99, to lugnet.off-topic.geek)
|
| |
| | Re: Transit Time to Mars
|
|
(...) Hmm, what about small unmanned craft for overnight package delivery? (FedEx in Space ;-) How much fuel is in one of those space shuttle booster rockets and how much of that is wasted getting to escape velocity? I bet if a small rocket were (...) (25 years ago, 15-Dec-99, to lugnet.off-topic.geek)
|
| |
| | Re: Transit Time to Mars
|
|
(...) Wow, cool, I get just over 1 day (~30 hours), which is probably short enough to ignore the fact that the source and target are both moving. I used s=½at² and solved for t. For s I used 5.8 x 10^10 m (36 x 10^6 miles) and for a I used 9.8 m/s². (...) (25 years ago, 15-Dec-99, to lugnet.off-topic.geek)
|
| |
| | Real Audio files
|
|
I hope this is the right place to ask this. Is it possible to save Real Audio files to listen to them without being online? If so how? Thanks Ryan (25 years ago, 15-Dec-99, to lugnet.off-topic.geek)
|
| |
| | Re: Transit Time to Mars
|
|
The 1G for days is what's hard to believe, given current technology.... (25 years ago, 15-Dec-99, to lugnet.off-topic.geek)
|
| |
| | Transit Time to Mars
|
|
Basic physics word problem, which I thought of because of NASA's publicity about renewed Mars exploration, and putting people on Mars: If a spaceship could accelerate at a constant rate of 1G, how long would it take to get safely to Mars? Assume the (...) (25 years ago, 15-Dec-99, to lugnet.off-topic.geek)
|
| |
| | Re: Xmas virus? Or a hoax?
|
|
(...) Several hoax detection clues are: 1. It says "This is not a hoax." 2. It gives authoritative-sounding sources (IBM, CBS, the FBI, AOL, antivirus software makers) without giving references. Any real warning would give a pointer to a web page at (...) (25 years ago, 15-Dec-99, to lugnet.off-topic.geek)
|
| |
| | Xmas virus? Or a hoax?
|
|
Hi, SOme friends of my family sent this Virus warning....I doubt very musch that it's real, but just to be on the safe side I'm going to post the message here. (...) Again I'm not sure this is real (and I doubt it is). Erin -- (25 years ago, 15-Dec-99, to lugnet.off-topic.geek)
|
| |
| | Re: Brad Justus is real
|
|
(...) Sure. But the issue isn't how it happened. The end net effect is the same -- it makes it easy to do something that's coming from someone else's box. (...) Again, true but probably not relevant -- such info certainly isn't in news server logs. (...) (25 years ago, 14-Dec-99, to lugnet.off-topic.debate, lugnet.off-topic.geek)
|
| |
| | Re: Elf Bowling--virus?
|
|
(...) I agree, of course, but as I said it's the guy's job to be paranoid, and he's very good at it. I don't know where he heard about it in the first place, though... Thanks to all who've posted in reply! Dave! (25 years ago, 10-Dec-99, to lugnet.off-topic.geek)
|
| |
| | Re: Elf Bowling--virus?
|
|
(...) Darn, and I thought my 191 was a good score :) Adrian -- (URL) (25 years ago, 10-Dec-99, to lugnet.off-topic.geek)
|
| |
| | Re: Elf Bowling--virus?
|
|
I checked with both Norton's and Network Associates web sites and they both confirmed it is a hoax. From a system administrative point of view, I couldn't be happier that it is. You wouldn't BELIEVE how many of our people are playing that game... My (...) (25 years ago, 10-Dec-99, to lugnet.off-topic.geek)
|
| |
| | Re: Elf Bowling--virus?
|
|
(...) I believe virus warnings from TWO places- my sysadmin at work and McAfee's site. I NEVER beleive anything that is "please pass this along to evreyone you know" Almost always a hoax. Chris (25 years ago, 10-Dec-99, to lugnet.off-topic.geek)
|
| |
| | Re: New 2000 sets in Lego.com European catalog!
|
|
(...) This is very odd, as they're still there for me. Maybe because I'm in a European (.co.uk) domain when I'm surfing? Mind you, doing all those reverse DNS lookups must be costly. (Added .off-topic.geek for technical discussion, if it (...) (25 years ago, 10-Dec-99, to lugnet.general, lugnet.off-topic.geek)
|
