According to these analyzes it would have disintegrated anyway. The speed it would have had at entry (27.3 km/s) would have been to large for it to survive.
As others have pointed out the chances for that hapening are very remote, but anyway, here's an interesting graphic showing the 2004 YD5's position when passing compared to all Low Earth, GPS, and geosynchronous sats. As the page says, it passed 1.88 earth radii from the orbit of GPS satellite BIIA-19.
We dump pretty enormous amounts of energy at RADAR wavelengths, 24/7, across the night sky. That'll stop approximately when we have no fear of hostile aircraft showing up at our borders.
And when it does, this tiny pre-programmed thingy left by ET far out in the solar system will register it, trigger, and start to transmit a message. And the message will read:
"Good, you've finally learned to shut up! Your civilization is then ready. Here's what to do:..."
Those guys are of course free call the moons whatever they want, but the official names are assigned by WGPSN (working group on Planetary System Nomenclature) and finally aproved by the International Astronomical Union's General Assembly.
And they tend to stick to mythology names... Last October 11 Jupiter moons discovered 2-3 years earlier were assigned names from the Greco-Roman mythology.
Thanks again for your updates, but the article is about CP20 (orbiting between Venus and Earth) isn't it? And is only
listed as having close approaches to Venus. So we should be safe from that one.
And I think your journal is really about
CR20. I can't find anything about any asteroid called CD30.
The problem is that to evolve a defense against something, a species needs to experience it and survive. So whether a species survives that first encounter depends entirely upon luck--whether the traits that it has evolved for other reasons happen by chance to also let it survive this new challenge.
No. We don't need to experience a first asteroid encounter to know that we should be prepared and protect ourself for a possible collision. We are smart enough to have learned about the threat of this kind of mass extinction without having seen or experienced it ourself. Right now we are still vulnerable, but give us a few hundred more years and we will have developed the technology to discover and defend against any impacts. And we've existed only a small fraction of the time the dinos wasted ruling the earth.
So unless a big one hits us the next few years (very unlikely), we'll be fine and in the future survive any potential explosions of this ticking bomb that the asteroid threat is.
This makes us more adapt than the dinos to a life in this solar system, and hence more favoured by evolution.
Well, one could say that the dinos died out cause they were to slow to develop a protection against asteroids. They were the rulers of the earth but just went on with their business eating each other and growing bigger for millions of years until the inevitable happend and a big one hit.
In a way this is evolution getting rid of the dumb masters of the earth. Those not capable of getting into the space age fast enough.
Bzzzt! Time is up. Deal with this asteroid coming here now or step down.
..., and given that most of their servers run on HPUX or Solaris (And the associated hardware), it would not surprise me if this was a result of their work.
Couldn't it be that they want Red Hat (with their tech people) mainly for the servers then? It makes lots of sense to start using Linux on new servers as they expand. And later go all the way and kick out HPUX and Solaris completely.
> What do you think they'll think about it anyway?
They'll think that this is the largest prime we know.
Then they'll look it up on the Intergalactic "Civilisation-level as a function of Record Prime" curve that the higher ranked civilizations of this galaxy have agreed upon and give earth a Civ-score based on that curve. And if the score is too low, they'll either exterminate us or (best case) just ignore us.
So, as surely you must agree on now, we better give them the highest prime we can.
> Even this new highest prime was found using a quite old algorithm that didn't use any advanced technology.
The computers used are quite advanced. We could never have found this number 10 years ago.
And the algorithm used to find the Mersenne primes is only a couple of decades old. The math behind it is not trivial at all. And the way mankind found it was by a collaboration involving thousands of earth-individuals in a distributed project, using spare computer-cycles and calculating for many years on (close to) the earths most high-tech computers. That's quite advanced in a society-civilization kind of way. Not quite the Borg, but still.
And if they got our previous message, then the time difference between our record-primes should say quite alot about how fast or slow we evolve.
Now, maybe ET has been there and done all that a long time a go and is way, way ahead of us. Where we'll be in a million years or so. But maybe she isn't. Anyway, even if all this is a joke, when we send them a large prime, we should send the largest we know. Just for show.
Regarding nukes, they'll understand that we know about them from the physics info we give.
There are a few minor differences if you look carefully. And they have updated the Mersenne prime. The prime on your link clearly is 2^3021377 -1 (listed on page 1), while this new message lists 2^6972593-1 on page 2. Of course that number is also outdated now. Mankinds largest prime as of today is 2^13466917-1.
If you study the translated imagemaps you see that the first lines explaines the numbers with dots increasing with one by one (from 0 to 12 and then 14, 15 and 20), then 2^(some binary) equaling the same number. Then comes a sign repeted all the time (equal sign) and some signs to the right of them again which then obviously are the signs they use for those digits. If they can count they'll get that. And to make sure they get it there's a listing of the first 25 primes from 2 to 97 using these signs at the end of page 1. Primes will most likely be a well known consept.
The added noice makes it a bit hard to read at first, but asuming ET is smart enough to receive the signals they should have no problem making sense of the numbers at least. What they'll make of the nudes, I don't know though.
At the end of page 2 (after listing the first primes) they've written 2^6972593 -1 which used to be the largest prime we knew. But two months ago a new record prime was found:
2^13466917 -1.
Can someone submit a patch, please? We don't want ET to think we're complete retards.
How much warning will we have?
With at least half of even the larger NEOs remaining undiscovered, the most likely warning today would be zero -- the first indication of a collision would be the flash of light and the shaking of the ground as it hit. In contrast, if the current surveys actually discover a NEO on a collision course, we would expect many decades of warning. Any NEO that is going to hit the Earth will swing near our planet many times before it hits, and it should be discovered by comprehensive sky searches. This is the purpose of the Spaceguard Survey. In almost all cases, we will either have a long lead time or none at all.
Do NOT use the/usr/src/linux area! This area has a (usually incomplete) set of kernel headers that are used by the library header files. They should match the library, and not get messed up by
whatever the kernel-du-jour happens to be.
I joined a startup this summer and got a pretty good deal with lots of stocks and didn't have to sign any non-compete contract. But as the company grew the board suddenly saw the risk and when it was time for handing out stock options to all employees they added a 6 month Non-competing clause (after quitting) for receiving the options.
The options deal weren't that good (compared to the stocks I already had) so I was close to not signing it. But as I realized I would be the only one saying no to "free" options I signed it just to not look disloyal and likely to leave. Just to not rock the boat, I guess. Still not sure if I did the right thing.
At June 1, 1999 the prime 2**6972593 -1 was found, so they really should update their message.
The aliens must think we're really stupid and primitive with such a small prime earth record and probably don't want to talk to us.:-)
But this prime number transmission is actually cool and should motivate people further in searching for new largest known prime . Imagine one of the first things another civilization reads is your prime!
Something for your great great......great great grand children to brag about.
Slashdot Mirror
According to these analyzes it would have disintegrated anyway. The speed it would have had at entry (27.3 km/s) would have been to large for it to survive.
As others have pointed out the chances for that hapening are very remote, but anyway, here's an interesting graphic showing the 2004 YD5's position when passing compared to all Low Earth, GPS, and geosynchronous sats. As the page says, it passed 1.88 earth radii from the orbit of GPS satellite BIIA-19.
Se here for some reports.
We dump pretty enormous amounts of energy at RADAR wavelengths, 24/7, across the night sky. That'll stop approximately when we have no fear of hostile aircraft showing up at our borders.
And when it does, this tiny pre-programmed thingy left by ET far out in the solar system will register it, trigger, and start to transmit a message. And the message will read:
"Good, you've finally learned to shut up! Your civilization is then ready. Here's what to do:
Acording to the NEO Close approach page the relative velocity of 2004 FH will be 8.0 km/s.
At least acording to Linus .
Here are more details from Andrew Morton, including links to buglists for 2.6.0.
Here
And they tend to stick to mythology names... Last October 11 Jupiter moons discovered 2-3 years earlier were assigned names from the Greco-Roman mythology.
Well, you should have typed 2003-CR20. Not 2003-CD20... At least it's CR20 you're linking to...
And I think your journal is really about CR20. I can't find anything about any asteroid called CD30.
How much faster does the keyboard layout makes you, then?
Like, how do you score on this test?
No. We don't need to experience a first asteroid encounter to know that we should be prepared and protect ourself for a possible collision. We are smart enough to have learned about the threat of this kind of mass extinction without having seen or experienced it ourself. Right now we are still vulnerable, but give us a few hundred more years and we will have developed the technology to discover and defend against any impacts. And we've existed only a small fraction of the time the dinos wasted ruling the earth.
So unless a big one hits us the next few years (very unlikely), we'll be fine and in the future survive any potential explosions of this ticking bomb that the asteroid threat is.
This makes us more adapt than the dinos to a life in this solar system, and hence more favoured by evolution.
Well, one could say that the dinos died out cause they were to slow to develop a protection against asteroids. They were the rulers of the earth but just went on with their business eating each other and growing bigger for millions of years until the inevitable happend and a big one hit.
In a way this is evolution getting rid of the dumb masters of the earth. Those not capable of getting into the space age fast enough.
Bzzzt! Time is up. Deal with this asteroid coming here now or step down.
Couldn't it be that they want Red Hat (with their tech people) mainly for the servers then? It makes lots of sense to start using Linux on new servers as they expand. And later go all the way and kick out HPUX and Solaris completely.
They'll think that this is the largest prime we know.
Then they'll look it up on the Intergalactic "Civilisation-level as a function of Record Prime" curve that the higher ranked civilizations of this galaxy have agreed upon and give earth a Civ-score based on that curve. And if the score is too low, they'll either exterminate us or (best case) just ignore us.
So, as surely you must agree on now, we better give them the highest prime we can.
> Even this new highest prime was found using a quite old algorithm that didn't use any advanced technology.
The computers used are quite advanced. We could never have found this number 10 years ago. And the algorithm used to find the Mersenne primes is only a couple of decades old. The math behind it is not trivial at all. And the way mankind found it was by a collaboration involving thousands of earth-individuals in a distributed project, using spare computer-cycles and calculating for many years on (close to) the earths most high-tech computers. That's quite advanced in a society-civilization kind of way. Not quite the Borg, but still.
And if they got our previous message, then the time difference between our record-primes should say quite alot about how fast or slow we evolve.
Now, maybe ET has been there and done all that a long time a go and is way, way ahead of us. Where we'll be in a million years or so. But maybe she isn't. Anyway, even if all this is a joke, when we send them a large prime, we should send the largest we know. Just for show.
Regarding nukes, they'll understand that we know about them from the physics info we give.
There are a few minor differences if you look carefully. And they have updated the Mersenne prime. The prime on your link clearly is 2^3021377 -1 (listed on page 1), while this new message lists 2^6972593-1 on page 2. Of course that number is also outdated now. Mankinds largest prime as of today is 2^13466917-1.
The added noice makes it a bit hard to read at first, but asuming ET is smart enough to receive the signals they should have no problem making sense of the numbers at least. What they'll make of the nudes, I don't know though.
Can someone submit a patch, please? We don't want ET to think we're complete retards.
Cool!
From Nasa's FAQs About NEO Impacts:
How much warning will we have?
With at least half of even the larger NEOs remaining undiscovered, the most likely warning today would be zero -- the first indication of a collision would be the flash of light and the shaking of the ground as it hit. In contrast, if the current surveys actually discover a NEO on a collision course, we would expect many decades of warning. Any NEO that is going to hit the Earth will swing near our planet many times before it hits, and it should be discovered by comprehensive sky searches. This is the purpose of the Spaceguard Survey. In almost all cases, we will either have a long lead time or none at all.
Miguel's Mono Roadmap
From the README file:
Do NOT use the /usr/src/linux area! This area has a (usually incomplete) set of kernel headers that are used by the library header files. They should match the library, and not get messed up by
whatever the kernel-du-jour happens to be.
I joined a startup this summer and got a pretty good deal with lots of stocks and didn't have to sign any non-compete contract. But as the company grew the board suddenly saw the risk and when it was time for handing out stock options to all employees they added a 6 month Non-competing clause (after quitting) for receiving the options.
The options deal weren't that good (compared to the stocks I already had) so I was close to not signing it. But as I realized I would be the only one saying no to "free" options I signed it just to not look disloyal and likely to leave. Just to not rock the boat, I guess. Still not sure if I did the right thing.
But this prime number transmission is actually cool and should motivate people further in searching for new largest known prime . Imagine one of the first things another civilization reads is your prime!
Something for your great great... ...great great grand children to brag about.