Well, average life-expectancy of a species is 5-million years. Homo Sapience has already doubled that putting us at the extreme end of the scale that gives this average.
In our defence, we've done a good job of balancing out that average.
Why would you need night vision if you are able to survive the day?
Animals with great night vision tend to have it because it is not safe for them to be out and about during the day when the majority of predators are up and about. Consequently a number of predators themselves developed night vision (they didn't develop it, just that predators with night vision were able to find a niche, see below). I'm assuming you mean to ask why humans didn't evolve the abilities, the answer is simple: we are well capable of being active throughout the day, and decide instead to rest at night.
Even though it is possible to push a human's visible spectrum into the IR range, with a long treatment of Vitamin A (http://www.edkeyes.org/blog/050825.html), there is no point in doing so, as it's not needed as a survival tool.
The same goes for microwave radio. We do not need it to be superior to all other animals on the planet, so there has never been a reason for why it would develop.
You have to remember that evolution is the process whereby an animal mutates randomly and a trait appears, if that animal survives to reproduce (not killed off by something) then that trait is passed on to a new generation. If that mutation proves negative to survival, chances are the animal dies and does not get to pass on that trait to next generation.
You can't simply expect a need for night vision to present itself, and in response the body evolves in order to comply with that need.
The scandal that the probe went all the way to an asteroid, landed, took off and flew all the way back, landed here (!) and may not have managed to get a sample (though more recent news hints at dust in the sample container). It did all those individually amazing things, but still had nothing to show for it.
You can call or email Tech Support. And also Tech issues are not something that's likely to come back and haunt you:
"I see here that 5 yeards ago you trolled the Tech forum because of a bug arising after a recent patch. You had the gall to ask someone to investigate it?"
That this even was reported on surprises me. Are we going to get a media scare every time they don't do something on the first attempt, and instead rely on their back-ups? This is nearly as bad as the JAXA scandal!
This is the same for many Instructional documents we use in industry. It has been identified that the first place anyone will look when you give them a page of instructions is the top left (in countries that read right to left this is reversed).
So we always put the most important information up there (Safety) and then the next most important information feeds to the right and down etc.
You might be interested in Talsico who's ideology we use to create instructional documents.
Slashdot Mirror
What is something most all of those countries have, and yet spend less (per capita) on than the US. hrm...
McDonalds?
Interesting, only one day and a few orders of magnitude off. But then, whoever tried to apply logic to women ... and survived.
Well, average life-expectancy of a species is 5-million years. Homo Sapience has already doubled that putting us at the extreme end of the scale that gives this average.
In our defence, we've done a good job of balancing out that average.
I always wondered how Leeloo managed to get to War, without having to spend a few weeks on Porn
Why spend even $3 million?
http://en.wikipedia.org/wiki/The_Blair_Witch_Project
These guys must have been laughing all the way to the bank.
It's hard to pull out when you're on to a good thing
Why would you need night vision if you are able to survive the day?
Animals with great night vision tend to have it because it is not safe for them to be out and about during the day when the majority of predators are up and about. Consequently a number of predators themselves developed night vision (they didn't develop it, just that predators with night vision were able to find a niche, see below). I'm assuming you mean to ask why humans didn't evolve the abilities, the answer is simple: we are well capable of being active throughout the day, and decide instead to rest at night.
Even though it is possible to push a human's visible spectrum into the IR range, with a long treatment of Vitamin A (http://www.edkeyes.org/blog/050825.html), there is no point in doing so, as it's not needed as a survival tool.
The same goes for microwave radio. We do not need it to be superior to all other animals on the planet, so there has never been a reason for why it would develop.
You have to remember that evolution is the process whereby an animal mutates randomly and a trait appears, if that animal survives to reproduce (not killed off by something) then that trait is passed on to a new generation. If that mutation proves negative to survival, chances are the animal dies and does not get to pass on that trait to next generation.
You can't simply expect a need for night vision to present itself, and in response the body evolves in order to comply with that need.
Clearly we need better tombstone technology
Just wait until the Mesopotamia estate catches up on them for inventing writing
The scandal that the probe went all the way to an asteroid, landed, took off and flew all the way back, landed here (!) and may not have managed to get a sample (though more recent news hints at dust in the sample container). It did all those individually amazing things, but still had nothing to show for it.
Isn't this a sequel to the game they released in 1969?
You can call or email Tech Support. And also Tech issues are not something that's likely to come back and haunt you:
"I see here that 5 yeards ago you trolled the Tech forum because of a bug arising after a recent patch. You had the gall to ask someone to investigate it?"
I foresee a product range of spherical Vacuum Cleaners
That this even was reported on surprises me. Are we going to get a media scare every time they don't do something on the first attempt, and instead rely on their back-ups? This is nearly as bad as the JAXA scandal!
I imagine it will happen about the same time as the PSP is also able to play full PS3 titles, because, you know, portability comes at no cost, right?
This is the same for many Instructional documents we use in industry. It has been identified that the first place anyone will look when you give them a page of instructions is the top left (in countries that read right to left this is reversed).
So we always put the most important information up there (Safety) and then the next most important information feeds to the right and down etc.
You might be interested in Talsico who's ideology we use to create instructional documents.
On the internet, everything is trolling, unless it's not.
I bet he'd love a calculator.
"Do you know your Sons might be Lesbians?"
Nevermore
Slashdot reader having great-great-grandchildren? PREPOSTEROUS!
Yeah, but if the 10,000 people who stay on it for 24 hours straight were removed from the calculation then the average usage is actually
(16,000,000,000 - 14,400,000) / (400,000,000 - 399990000)
39.965 minutes
That changes EVERYTHING!
How'd you like Them Apples
Soccer is what the rest of the world follows for sports as they don't have access to baseball or football or basketball or hockey.
I don't know about Mexico, but I know for a fact that Canada play a lot of hockey
Remember, the name of the company no longer even contains the word "Computer."
Neither does Dell Inc., what is your point?