speaking of super-glue, it works very well for what the military originally had in mind for it, which is closing wounds: next time you have a bad cut, try it, it works wonders
I wouldn't have believed it. I remember reading a dodgy story about a guy who found his wife in bed with a man and by way of poetic justice superglued her hand to the guys you-know-what and the chemicals which diffused into his system killed him before the hospital could separate them
Now the story may have been made up but I would have thought that superglue in your system really would be bad news.
Do you have more info on this? I would hate for people to try this at home and find that only the special military glue is safe to squirt into open wounds.
Also, why use an LED matrix display? Surely a compass would work just nicely?
If you keep making sensible suggestions like that the rotating tower will never get built. Its just gadgetry for its own sake. Show how clever they are and all that.
Thanks for that. I added some book references for you.
BTW my main interest is in finding ways to import our minds into a simulation, because I am pretty sure I will lose the use of my current body in the next half century.
i'd be seriously interested in knowing what sort of motors would power that.
Probably nothing very exciting. The average commuter train would need to apply more torque. Gearing would be the interesting bit. I am thinking of something like a circular worm gear with very fine pitch.
Dubai is an Islamic state and therefore most inhabitants will be Muslims. As a good Muslim you have to pray facing towards Mecca, which will be in a different direction all the time...
Malaysian hotel rooms always have an arrow (usually on the ceiling) for this purpose. Given the technical goals of this project I am sure they will have something like an LED matrix display pointing to the current direction of Mecca. Maybe the tower will also be programmed to pause during prayers?
My wife is Malaysian and she keeps having to convince me not to turn the arrows around during our holidays overseas.
Agreed about the "legal but voluntary" part. As far as US police, I don't think that they try *that* hard. They may run an occasional sting operation in some cities to look like they're doing something or if the residents of the neighborhood complain, but the law isn't enforced all that severely.
The big advantage of having prostitution legal and recognised as such is that you can require regular checks for STD's, as well as enforce standards for working conditions.
If the universe has 12 faces what happens to you if you exactly hit a boundary between faces? Do different bits of you come out of different opposing faces? If so, where does the energy come from to break you into components?
Maybe not a big issue for a spacecraft but what happens if a neutron star hits a boundary?
the radiation left over from the Big Bang - suggest that we live in a finite universe that is shaped like a football or dodecahedron, and which resembles a video game in certain respects.
If our universe resembles a video game, could it actually be a video game?
I bought an HP Proliant server a couple of weeks ago and that was pretty much the coice I was given, except that RHEL on that machine cost $1500 or something equally stupid. We already have our own linux build so I took that out and saved my employer some money they would not have missed.
users should not be using the rpm command line tool for package management.
Repository management works well in pkgsrc with pkg_add, pkg_del, pkg_info, etc. There is no need to add an apt or yum lookalike over the top, and the interface is simple and intuitive.
The situation with yum seems to be that rpm is in the THB (too hard basket) and they are writing a wrapper to hide the problem.
RPM has about 30 options you can enter from the command line and if you don't get the command right it just echoes the list back at you, as if that is any help. Most shell commands try to help by providing a few simple examples.
Package managers, like revision control systems have complex functions and their help systems need to do more than just say here are the options you can use
And with some minor modifications Star Trek is Doctor Who which with some minor modifications is Battlestar Galactica which is very similar to Lost in Space which seems a lot like Futurama, a show that brings back memories of Andromeda which is like that old show...
Its a shame because there is a lot of material out there. We seem to be filming anything written by Phillip Dick at the moment, but what about Gibsons Virtual Light, Heinleins Friday, Stephensons Snow Crash?
Look up how many drivers there are estimated to be on our roads without licenses (or even with revoked licenses).
Though I remember a study here in Australia which concluded that some unlicensed drivers are among the safest people on the road because they can't afford to attract attention.
That's got more to do with respriation than gravitation
Imagine that I come to a complete stop on the climb and keep my feet on the pedals. I still need to do work to stay where I am but I don't gain any potential energy. The less time I spend climbing the less energy I lose while increasing my potential energy. So no, its not really the same as a gravitational slingshot. More of an analogy really.
The real problem with hydrogen is that it's an inefficient way to store energy
But Methane (CH4) is a fantastic way to store and transport energy. We already have pipelines and ships to transport it and busses which run on the stuff. All you need to do is burn the hydrogen down to Methane, taking carbon out of the atmosphere in the process.
There is a related effect most noticed when cycling in undulating terrain. You pick up speed going down hill then pour on the power going up the next hill. If you keep your speed up you get a higher average speed than you would on the flat.
How do you work that out? Impulse = integral (F.dt) = change of momentum, momentum = mass * velocity. Seems the same impulse gives the same velocity change, if the mass remains constant.
Think about it this way: you are the Cassini probe transiting Jupiter on your way to Saturn. Approaching Jupiter its gravity sucks you in, increasing your speed. You do a burn at closest approach and increase your speed further. As a result you spend less time inside Jupiters gravitational field on your way out, so you lose less speed than you gained on your way in.
The effect works the other way as well. Your own gravitational field pulls Jupiter a bit towards you as you approach and the tug in the other direction is slightly smaller (because of your greater speed) after the flyby. The result is that Cassini and Jupiter exchange a small amount of momentum.
If 3200 Phaethon is truly an asteroid, with no tail, how did it produce the Geminids? "Maybe it bumped up against another asteroid," offers Cooke. "A collision could have created a cloud of dust and rock that follows Phaethon around in its orbit."
OK but what if 3200 Phaethon occasionally has outbursts when it is closest to the sun. Doing that will blow a lot of rock off the surface and create meteor showers, it can also change the orbit.
Space probes try to perform trajectory changes when deep in a gravitational field because coupling with a large mass actually helps you get more velocity change from a given impulse.
Its not going to be fun for us of this object changes course one day and collides with the Earth.
Slashdot Mirror
I wouldn't have believed it. I remember reading a dodgy story about a guy who found his wife in bed with a man and by way of poetic justice superglued her hand to the guys you-know-what and the chemicals which diffused into his system killed him before the hospital could separate them
Now the story may have been made up but I would have thought that superglue in your system really would be bad news.
Do you have more info on this? I would hate for people to try this at home and find that only the special military glue is safe to squirt into open wounds.
By that standard APL would be hard to beat.
If you keep making sensible suggestions like that the rotating tower will never get built. Its just gadgetry for its own sake. Show how clever they are and all that.
Thanks for that. I added some book references for you.
BTW my main interest is in finding ways to import our minds into a simulation, because I am pretty sure I will lose the use of my current body in the next half century.
Probably nothing very exciting. The average commuter train would need to apply more torque. Gearing would be the interesting bit. I am thinking of something like a circular worm gear with very fine pitch.
That was my thought when the issue of sewage disposal came up. Smelly, but very slippery.
TFA:
So maybe it does only go to 360, then back.
Malaysian hotel rooms always have an arrow (usually on the ceiling) for this purpose. Given the technical goals of this project I am sure they will have something like an LED matrix display pointing to the current direction of Mecca. Maybe the tower will also be programmed to pause during prayers?
My wife is Malaysian and she keeps having to convince me not to turn the arrows around during our holidays overseas.
The big advantage of having prostitution legal and recognised as such is that you can require regular checks for STD's, as well as enforce standards for working conditions.
If the universe has 12 faces what happens to you if you exactly hit a boundary between faces? Do different bits of you come out of different opposing faces? If so, where does the energy come from to break you into components?
Maybe not a big issue for a spacecraft but what happens if a neutron star hits a boundary?
If our universe resembles a video game, could it actually be a video game?
and conduct extensive tests. Its the only way to be sure.
I bought an HP Proliant server a couple of weeks ago and that was pretty much the coice I was given, except that RHEL on that machine cost $1500 or something equally stupid. We already have our own linux build so I took that out and saved my employer some money they would not have missed.
That would be the Redhat Package Manager, right?
Repository management works well in pkgsrc with pkg_add, pkg_del, pkg_info, etc. There is no need to add an apt or yum lookalike over the top, and the interface is simple and intuitive.
The situation with yum seems to be that rpm is in the THB (too hard basket) and they are writing a wrapper to hide the problem.
RPM has about 30 options you can enter from the command line and if you don't get the command right it just echoes the list back at you, as if that is any help. Most shell commands try to help by providing a few simple examples.
Package managers, like revision control systems have complex functions and their help systems need to do more than just say here are the options you can use
Its a shame because there is a lot of material out there. We seem to be filming anything written by Phillip Dick at the moment, but what about Gibsons Virtual Light, Heinleins Friday, Stephensons Snow Crash?
Though I remember a study here in Australia which concluded that some unlicensed drivers are among the safest people on the road because they can't afford to attract attention.
Sabatier process
Imagine that I come to a complete stop on the climb and keep my feet on the pedals. I still need to do work to stay where I am but I don't gain any potential energy. The less time I spend climbing the less energy I lose while increasing my potential energy. So no, its not really the same as a gravitational slingshot. More of an analogy really.
But Methane (CH4) is a fantastic way to store and transport energy. We already have pipelines and ships to transport it and busses which run on the stuff. All you need to do is burn the hydrogen down to Methane, taking carbon out of the atmosphere in the process.
There is a related effect most noticed when cycling in undulating terrain. You pick up speed going down hill then pour on the power going up the next hill. If you keep your speed up you get a higher average speed than you would on the flat.
I think the total velocity change from all our space probes was calculated to be about 1 foot per million years, or thereabouts.
Think about it this way: you are the Cassini probe transiting Jupiter on your way to Saturn. Approaching Jupiter its gravity sucks you in, increasing your speed. You do a burn at closest approach and increase your speed further. As a result you spend less time inside Jupiters gravitational field on your way out, so you lose less speed than you gained on your way in.
The effect works the other way as well. Your own gravitational field pulls Jupiter a bit towards you as you approach and the tug in the other direction is slightly smaller (because of your greater speed) after the flyby. The result is that Cassini and Jupiter exchange a small amount of momentum.
OK but what if 3200 Phaethon occasionally has outbursts when it is closest to the sun. Doing that will blow a lot of rock off the surface and create meteor showers, it can also change the orbit.
Space probes try to perform trajectory changes when deep in a gravitational field because coupling with a large mass actually helps you get more velocity change from a given impulse.
Its not going to be fun for us of this object changes course one day and collides with the Earth.