OK but you are assuming that we will be monitoring the galaxy using light, not ultra-light or whatever fancy name we give to the FTL particle/communication/viewing device.
We can agre that there is this concept called "now" where everyone experiences the same moment in time. Take moon, it is 1 light-second away. If Neil on Moon and I speak at the same time, I will hear him one second after I spoke.
If Neil has a FTL communication device and sets the transmission anti-delay to one second, we will hear each other at the same time. We still won't agree on a lot of things (including the concept of now) because it is just not possible. For example, we're observing an explosion on the surface of sun, which is approx. 8 light minutes away but assuming it is full moon, he will experience that event one second later than I do, they he will say "wow" and overall delay will become two seconds.
If there were an universal time signal (like the ones transmitted by WWV) in ultra-space (or whatever technobabble it is called in Star Trek these days), then we could coordinate our observations with that. We would still be able to disagree with the timing of our observations but we would at least agree on the effects.
It wouldn't be travelling in time because time is only an after-effect of the space-time, isn't it? D=v*t, then T=D/V. I can substitute all of the time variables in any equation with distance over velocity and they would all be valid. The event still happened eight light-minutes away and we live in different parts of the universe, the event happened at one single point in time but we are observing it at different times. There is nothing strange about that.
The whole of the special relativity and the complexity of our observations rely on the unchanging fact of speed of light (and nothing being faster than speed of light). If you insert a magical particle into the equation where you can act instantaneously, the whole explanation and the understanding of relativity gets much easier.
For example, let's take your example with galaxies and reduce it to real-life speeds.
Occassionally you send me some letters, which takes three weeks to arrive. But I have this wonderful gadget called telephone and you have this wonderful gadget called webcam. I read through your mails and find out that you have a webcam and a web site! I log into your website using my phone and see there is a burglar just about to get into your house. I disconnect and phone you immediately to warn you about your immediate danger. After calling the police, you sit down and write me a nice letter about your experience in full and detailed way and I read it three weeks later, knowing that you are safe.
I haven't travelled faster than light but information did. The whole point of relativity is there is no concept of "now" and you can't move faster than light, which means you can't get information from other parts of the universe at that particular moment. Everything is delayed relative to your relative position and speed. FTL-communication devices go around this speed-limit and get rid of all of the complexities of relativity, life becomes much simpler.
It is all "magic" of course, there are no observed particles (so far) that travel faster than light. Wormholes seem to be impossible to generate and travel through and tachyons do not exist.
oh, bugger. I must have mixed those two. Thanks for the correction, dear AC. On the other hand, Anglican church is closer to Catholics compared to Protestants. Especially high end of the church. Anglicanism is mainly an accident of history, all because of a single man trying to divorce his wife...:)
Sometimes democracy is described as "Mob Rule". In civilized countries there exist measures against this so-called mob but this always has been a problem in the definition of true democracy. Many past philosophers have judged democracy as the worst way to rule.
Hmm, reading Bible is a dangerous thing, you might suddenly start to stone your ex-wife to death or offer your daughters to your visitors from far places.
C.S. Lewis was a good catholic and the good vs. evil and the nature of God was clearly visible. Aslan being the supreme being and in his Out of the Silent Planet series is clearly religious undertones.
Harry Potter is the most known one but Philip Pullman's "His Dark Materials" is clearly anti-religion and anti-church (and a very good read). It was awarded many prizes and in Uk there was quite a controversy around it but no one suggested burning or banning the books.
On the other hand, when I mention the books as "good read" to some Christians, their eyebrows usually go up.:-)
Why why why?? +What's wrong with that book? It is sinister (all Dahl stories are), it doesn't have a true happy ending but why try to ban it? It just doesn't make sense.
Same goes for Slaughterhouse V (A Children's Crusade). A book about a terrible war? What's wrong with it? Was it because it was US and UK bombing the enemy and Vonnegut showing the ugly side? IMHO, It is one of the most pacifist book written to this date.
The adventures of Tom Sawyer???? These parents must be on crack!
Brave New World? Every young child should read it and understand technology alone cannot solve our problems.
This is quite common with spacecraft. When (oh wonderful, purely American-made and mother of all space stations, enough sarcasm) SkyLab was used, the crew reported problems especially when one of the astronauts moved or jumped around during the Apollo Space Telescope work which ruined the observations. Oh well, AST was a white elephant in any case. Go all the way there to observe what? Sun. Easiest thing to observe from ground...
this is how solar hot water supplies work. Basicly you have a shallow (approx 1cm) water which gets heated by sunshine which gets lighter and moves to the tank. Cold water from the tap adds water to the bottom of the panel. The water is usually very hot, close to 70-80 degrees C which is good enough for almost any purpose. In many meditarrenaean countries this way of heating water is commonly used and it is very efficient and cheap way of generating hot water.
The nice thing is, once the water is heated up, it is easy to get some work out of it, preferrably by a Stirling engine. As a result you use less electricity, saving the environment.
Using deep (as opposed to deep) and unclosed systems is not viable or wasteful because of evaporation. Usually solar panels are covered with a secondary layer of glass to have a greenhouse effect to keep the hot air.
So is Pacific Ocean but there is this natural cycle thingie called El Nino you know, which kinda kills lots of fish because the ocean gets warmer than usual?
It takes a loooooot of energy but it still happens.
0C is only valid when the pressure is 1 atm. Similarly 4C rule changes as well.
Approx every 10 m adds 1atm of pressure. At the bottom of the lake you can have water cooler than 0C but still in liquid phase.
Unfortunately I don't have my thermodynamics book any longer so I can't consult the Temp vs. Pressure diagrams to find the phase change degree for 10 atm. If anyone reading this thread is in Mechanical Engineering, can you kindly look at this diagram to tell us the temperature for freezing point?
Oh well, it didn't help OS/2 around 1995, it didn't hel Unixware around 2000. Why would such a move help Solaris in 2004/5? People never learn from other's mistakes and have to experience failure themselves all the time.
If you want your applications to run anywhere, use something truly portable. Java? PHP? Perl? ANSI C? Yes...
America still didn't win the race to space, apart getting a man on to the moon. First space station? First continuously manned space station? Just now, how has the capability to send a man to space? China and Russia, not Americans.
Been there, done that. It's really impressive during an eclipse. If you look at the shadows generated by leaves you can see the small eclipse patterns on the ground. It's pretty cool. It happens because you have a smaller, less diffuse light source and the patterns on the leaves act like a pin-camera. 1999 Eclipse was one of the most memorable events in my life.
In the good old days they could to these in one single go and the missions tended to take a couple of months to get there instead of 6-7 years as it took with Casinni and will take with Messenger. They sent smaller payloads with more powerful rockets. When one failed, they sent an other one. Now we will have to wait until 2011 to see if Messenger fails or not.
All these advances in technology surely must mean that we can pack more in less mass and send bigger mass around the solar system without these lengthy transfers...
Room temperature is usually taken as 21 degrees C but a comfortable room temperature depends on the people. I'm comfortable around 19-20 degrees and 23-24 feels far too hot. Most of the people feel cold when I'm comfortable.
this is a common misconception. Mercury is not in tidal-lock with sun. It rotates slowly and for three Mercury years, it has two Mercury days but it does rotate and sunny side is not always the same side.
This has interesting side effects like Sun popping out from East, moving towards west, halting, moving backwards down again and then raising for a second time before moving across the sky.
Now most of the recent HOWTOs or similar documents are being maintained on wikisinstead of static maintainers. If something is wrong in the HOWTO, don't moan, fix it. Open source to the core.
It is interesting you mention this because if you are competing in VHF, to maximise your squares you want to be as close as to where the squares meet AKA confluence. I don't have a GPS but I might take one of these guys' road maps for the next VHF contest. I operate on 6m, 2m and 70cm but never bothered to join a contest this way.
One of the UK confluence points was wisited by a ham, he talks about this hobby more boring than growing tomatoes:-) At the end of is entry, he mentions he notified the VHF contesters that he was available via packet.
I already have all the equipment to do such a portable work someday, I'm just too lazy.:)
Slashdot Mirror
OK but you are assuming that we will be monitoring the galaxy using light, not ultra-light or whatever fancy name we give to the FTL particle/communication/viewing device.
We can agre that there is this concept called "now" where everyone experiences the same moment in time. Take moon, it is 1 light-second away. If Neil on Moon and I speak at the same time, I will hear him one second after I spoke.
If Neil has a FTL communication device and sets the transmission anti-delay to one second, we will hear each other at the same time. We still won't agree on a lot of things (including the concept of now) because it is just not possible. For example, we're observing an explosion on the surface of sun, which is approx. 8 light minutes away but assuming it is full moon, he will experience that event one second later than I do, they he will say "wow" and overall delay will become two seconds.
If there were an universal time signal (like the ones transmitted by WWV) in ultra-space (or whatever technobabble it is called in Star Trek these days), then we could coordinate our observations with that. We would still be able to disagree with the timing of our observations but we would at least agree on the effects.
It wouldn't be travelling in time because time is only an after-effect of the space-time, isn't it?
D=v*t, then T=D/V. I can substitute all of the time variables in any equation with distance over velocity and they would all be valid. The event still happened eight light-minutes away and we live in different parts of the universe, the event happened at one single point in time but we are observing it at different times. There is nothing strange about that.
The whole of the special relativity and the complexity of our observations rely on the unchanging fact of speed of light (and nothing being faster than speed of light). If you insert a magical particle into the equation where you can act instantaneously, the whole explanation and the understanding of relativity gets much easier.
For example, let's take your example with galaxies and reduce it to real-life speeds.
Occassionally you send me some letters, which takes three weeks to arrive. But I have this wonderful gadget called telephone and you have this wonderful gadget called webcam. I read through your mails and find out that you have a webcam and a web site! I log into your website using my phone and see there is a burglar just about to get into your house. I disconnect and phone you immediately to warn you about your immediate danger. After calling the police, you sit down and write me a nice letter about your experience in full and detailed way and I read it three weeks later, knowing that you are safe.
I haven't travelled faster than light but information did. The whole point of relativity is there is no concept of "now" and you can't move faster than light, which means you can't get information from other parts of the universe at that particular moment. Everything is delayed relative to your relative position and speed. FTL-communication devices go around this speed-limit and get rid of all of the complexities of relativity, life becomes much simpler.
It is all "magic" of course, there are no observed particles (so far) that travel faster than light. Wormholes seem to be impossible to generate and travel through and tachyons do not exist.
But I've seen a pair of very funny but gay cats.
Nope. I don't live in USA and I'm glad about that. Also liberal is not a rude word, neither being a democratic person.
oh, bugger. I must have mixed those two. Thanks for the correction, dear AC. :)
On the other hand, Anglican church is closer to Catholics compared to Protestants. Especially high end of the church. Anglicanism is mainly an accident of history, all because of a single man trying to divorce his wife...
Sometimes democracy is described as "Mob Rule". In civilized countries there exist measures against this so-called mob but this always has been a problem in the definition of true democracy. Many past philosophers have judged democracy as the worst way to rule.
Hmm, reading Bible is a dangerous thing, you might suddenly start to stone your ex-wife to death or offer your daughters to your visitors from far places.
Harry Potter is the most known one but Philip Pullman's "His Dark Materials" is clearly anti-religion and anti-church (and a very good read). It was awarded many prizes and in Uk there was quite a controversy around it but no one suggested burning or banning the books.
On the other hand, when I mention the books as "good read" to some Christians, their eyebrows usually go up. :-)
Am I the first one who read it as And her freedoom of speech is irritating?
You might not like her style of poetry but you shouln't advocate banning the book.
Why why why?? +What's wrong with that book? It is sinister (all Dahl stories are), it doesn't have a true happy ending but why try to ban it? It just doesn't make sense.
Same goes for Slaughterhouse V (A Children's Crusade). A book about a terrible war? What's wrong with it? Was it because it was US and UK bombing the enemy and Vonnegut showing the ugly side? IMHO, It is one of the most pacifist book written to this date.
The adventures of Tom Sawyer???? These parents must be on crack!
Brave New World? Every young child should read it and understand technology alone cannot solve our problems.
This is quite common with spacecraft. When (oh wonderful, purely American-made and mother of all space stations, enough sarcasm) SkyLab was used, the crew reported problems especially when one of the astronauts moved or jumped around during the Apollo Space Telescope work which ruined the observations. Oh well, AST was a white elephant in any case. Go all the way there to observe what? Sun. Easiest thing to observe from ground...
which way does the wind usually blow?
The nice thing is, once the water is heated up, it is easy to get some work out of it, preferrably by a Stirling engine. As a result you use less electricity, saving the environment.
Using deep (as opposed to deep) and unclosed systems is not viable or wasteful because of evaporation. Usually solar panels are covered with a secondary layer of glass to have a greenhouse effect to keep the hot air.
It takes a loooooot of energy but it still happens.
Approx every 10 m adds 1atm of pressure. At the bottom of the lake you can have water cooler than 0C but still in liquid phase.
Unfortunately I don't have my thermodynamics book any longer so I can't consult the Temp vs. Pressure diagrams to find the phase change degree for 10 atm. If anyone reading this thread is in Mechanical Engineering, can you kindly look at this diagram to tell us the temperature for freezing point?
I use it regularly but the only thing it does is dd piped to ftp. You still have to zero the unused sectors before copying the data.
If you want your applications to run anywhere, use something truly portable. Java? PHP? Perl? ANSI C? Yes...
America still didn't win the race to space, apart getting a man on to the moon. First space station? First continuously manned space station? Just now, how has the capability to send a man to space? China and Russia, not Americans.
Been there, done that. It's really impressive during an eclipse. If you look at the shadows generated by leaves you can see the small eclipse patterns on the ground. It's pretty cool. It happens because you have a smaller, less diffuse light source and the patterns on the leaves act like a pin-camera. 1999 Eclipse was one of the most memorable events in my life.
you can fix what you know, someone else will fix what you don't.
Wo-hooo, got the ratio wrong :( Thanks for the correction. |-)
All these advances in technology surely must mean that we can pack more in less mass and send bigger mass around the solar system without these lengthy transfers...
Here's a description:
http://www.fact-index.com/s/st/standard_temperatur e_and_pressure.html
And a nice STP-related gas volume calculator
:http://www.1728.com/stp.htm
Room temperature is usually taken as 21 degrees C but a comfortable room temperature depends on the people. I'm comfortable around 19-20 degrees and 23-24 feels far too hot. Most of the people feel cold when I'm comfortable.
This has interesting side effects like Sun popping out from East, moving towards west, halting, moving backwards down again and then raising for a second time before moving across the sky.
Now most of the recent HOWTOs or similar documents are being maintained on wikisinstead of static maintainers. If something is wrong in the HOWTO, don't moan, fix it. Open source to the core.
One of the UK confluence points was wisited by a ham, he talks about this hobby more boring than growing tomatoes :-) At the end of is entry, he mentions he notified the VHF contesters that he was available via packet.
I already have all the equipment to do such a portable work someday, I'm just too lazy. :)