This is complete nonsense, and should have been moderated as troll or flamebait. Africa's problems are far more complex than the poster claims, and have a lot to do with the artificiality of the national borders that the Europeans imposed on the continent.
Niven's story was entertaining, but from an astrophysics point of view it was sheer nonsense. Stars in binary systems routinely endure supernova explosions without exploding themselves. The idea of a chain reaction is not realistic.
Photons do not have mass. You may be thinking of neutrinos, which were once thought to be massless, but have been found to have a very small mass. Only massless particles can travel at the speed.
No, day-month-year is more sensible since the size of the unit is increasing monotonically. The sanest way to do it would be year-month-day, because then you could increase the precision of the time string to whatever you needed just by adding units to the right. The month-day-year system is probably the lease sensible method of the lot.
Yes, but accretion onto black holes gives of X-rays and radio signals. If there were significantly more supermassive black holes we should be detecting them. Now, Swift is finding a lot more active galactic nuclei (which are powered by black hole accretion) than we previously knew about, but still not enough to explain the gamma-ray excess.
It is quite the opposite in fact. The problem is that there is more gamma-ray emission than can be explained by the sources that we know about. The dark sky paradox arises because there is not as much optical light as one would expect given an infinite universe.
The Planck temperature is the highest temperature that our current physics can work at. Temperatures higher than the Planck temperature require a theory of quantum gravity to understand. The Planck temperature is about 1.4e+32 kelvin. One day, when we have a working theory of quantum gravity, perhaps the maximum possible temperature will be higher, but until then this is the highest temperature that is possible assuming the laws of physics that we know about.
That is a very good point. Sampling would be taking a short section of text and putting using in quotes, or otherwise acknowledging in your work that you are using something that someone else wrote.
> It's worth revisiting the lesson of the sixties that the Hippies got right, > such as not to trust the government and that the purpose of public > education is to lie to you.
Nonsense. It is this kind of paranoid thinking that has caused so much trouble over the past 45 years. It is one thing to think critically about things that you are taught, but it is quite another to simply assume that you are being lied to. It is called paranoia, and it is a mental illness.
I did a little more reading on this today and it looks like a better estimate is 5%-10% of all humans who ever lived are alive today. However, the estimate depends critically on what one assumes for life expectancy, and we do not have very good information about that for most of the time that modern humans have been around.
Depending on what you assume about paleolithic populations about 15%-25% of all the humans who ever lived are alive today. That means that roughly one our of every five people who ever walked the Earth have the potential to post to slashdot.
It was designed to last at least 90 days. The components were tested and the engineers were highly confident that Spirit and Opportunity would last at least 90 days on the Martian surface. The components were not expected to fail after 90 days, but after 90 days they were in somewhat unknown territory about how the rovers would function.
>If evolution only favored big complex beings like ourselves, all the millions >of other life forms which inhabit the earth, totaling a far greater mass than >us, wouldn't be around.
One could argue that, at the rate we are going, all the millions of other life forms that inhabit the earth will not be around much longer.
Slashdot Mirror
It is a completely understandable mistake. The Icelandic alphabet does not have the letter c.
This is complete nonsense, and should have been moderated as troll or flamebait. Africa's problems are far more complex than the poster claims, and have a lot to do with the artificiality of the national borders that the Europeans imposed on the continent.
Niven's story was entertaining, but from an astrophysics point of view it was sheer nonsense. Stars in binary systems routinely endure supernova explosions without exploding themselves. The idea of a chain reaction is not realistic.
That has not been my experience. I have found that battery life in Apple products tend to be good, but less than what is advertised.
Photons do not have mass. You may be thinking of neutrinos, which were once thought to be massless, but have been found to have a very small mass. Only massless particles can travel at the speed.
The problem is that the can take other people with them when Darwin calls.
Wrong.
You mean like ipods, and macbooks, and things like that?
A story is typically about three meters.
It is primarily a way to test computational algorithms.
No, day-month-year is more sensible since the size of the unit is increasing monotonically. The sanest way to do it would be year-month-day, because then you could increase the precision of the time string to whatever you needed just by adding units to the right. The month-day-year system is probably the lease sensible method of the lot.
To make sure that switching over would not cause problems of its own. One does not make changes to spacecraft operations lightly.
Freedom of meaningless choice.
Yes, but accretion onto black holes gives of X-rays and radio signals. If there were significantly more supermassive black holes we should be detecting them. Now, Swift is finding a lot more active galactic nuclei (which are powered by black hole accretion) than we previously knew about, but still not enough to explain the gamma-ray excess.
It is quite the opposite in fact. The problem is that there is more gamma-ray emission than can be explained by the sources that we know about. The dark sky paradox arises because there is not as much optical light as one would expect given an infinite universe.
Isn't it cute when idiots try to act all clever?
The Planck temperature is the highest temperature that our current physics can work at. Temperatures higher than the Planck temperature require a theory of quantum gravity to understand. The Planck temperature is about 1.4e+32 kelvin. One day, when we have a working theory of quantum gravity, perhaps the maximum possible temperature will be higher, but until then this is the highest temperature that is possible assuming the laws of physics that we know about.
That is a very good point. Sampling would be taking a short section of text and putting using in quotes, or otherwise acknowledging in your work that you are using something that someone else wrote.
> It's worth revisiting the lesson of the sixties that the Hippies got right,
> such as not to trust the government and that the purpose of public
> education is to lie to you.
Nonsense. It is this kind of paranoid thinking that has caused so much trouble over the past 45 years. It is one thing to think critically about things that you are taught, but it is quite another to simply assume that you are being lied to. It is called paranoia, and it is a mental illness.
I did a little more reading on this today and it looks like a better estimate is 5%-10% of all humans who ever lived are alive today. However, the estimate depends critically on what one assumes for life expectancy, and we do not have very good information about that for most of the time that modern humans have been around.
Functioal?
Depending on what you assume about paleolithic populations about 15%-25% of all the humans who ever lived are alive today. That means that roughly one our of every five people who ever walked the Earth have the potential to post to slashdot.
So, we need to be sure that Val Kilmer is the first man on Mars.
It was designed to last at least 90 days. The components were tested and the engineers were highly confident that Spirit and Opportunity would last at least 90 days on the Martian surface. The components were not expected to fail after 90 days, but after 90 days they were in somewhat unknown territory about how the rovers would function.
>If evolution only favored big complex beings like ourselves, all the millions
>of other life forms which inhabit the earth, totaling a far greater mass than
>us, wouldn't be around.
One could argue that, at the rate we are going, all the millions of other life forms that inhabit the earth will not be around much longer.