It is just, in my belief, so happened that the clue lies in missing gene of us that makes the difference. During the evolution process, something happened. We lost the ability to grow hair. Imagine our naked ancestors' life in a snowy day 20000 years ago. For survival something must be done to keep warm. Whatever stunt they pulled, the natural selection kept those who could survive and rejected those couldn't. For these naked animals to survive cold winter, they have to use the brain. To transfer fur from other animals to their own protection, and to do the logistics of food in winter, etc.
Then around 8000 years ago, some wise man, who started to 'think' of the distinction between human and other forms of animal. The answer lies around them, it is their own cloth. We don't have fur, so we created cloth to protect ourselves. We don't have $X, let's create $X and then we survive. The argument sounds so well, people put 'creation' as an immortal. And named it as GOD. The idea was so well, that they created GOD in their own image. Yes, not the other way round. If you wonder why 'the fan club' fight so hard to preach creationism over Darwinism in schools, is because creationism is the founding stone of their belief. Ok, in my own words, creationism is grown out of evolution. The two ideas run in different directions and they do not conflict each other.
Back to the deterministic and randomness issue. Try this, say a polynomial (x-1)(x-2)(x-3)=0 there are three roots, namely x=1,2,3. Use genetic programming to find roots of this polynomial, with initial value of 0, and a certain objective function. The starting gene which was clueless in beginning start collecting information after a few generations. And soon arrive at one of the roots after some generations, say 3. This part work as a, quite, deterministic search process. And after many generation, the root is still 3. To find the remaining 2 roots one must introduce some randomness to the gene.
OTOH, Apple could satisfy the customer by selling an unlocked model at ten times the price. Doing so, it makes the locked model a real bargain. Which also saved their ass from lawsuits. The consumers can hardly sue Apple for a 10x price tag.
A friend's office had replaced a male with 2 female. He found the 2 females were much less experienced. In that industry, female proficient in the trade is twice as hard to find. My friend, who has no sex preference, went to ask the PHB why the good guy got kicked away. PHB answered, "We need a head count of females, to maintain the male/female ratio, so that we shall not be complained for sex discrimination. Which is bad for our corporate image".
The anti-discrimination movement is, in some way, promoting discrimination.
Transistor was patented in 1951, size of an IBM is bigger than a room. I think ICs were out of sight. Isn't it amazing to fly something to the orbit with those primitive controls.
There should be a technical terminology for this. It happened too often in the modern age of video coverage.
Sometimes when people protest, they act peacefully. But when a reporter came along with a camera shooting at him, suddenly the guy act hyperactively for drawing the attention of the reporter, there should be a term to describe such acting. Instead of calling him "PHSCTing" there should be a better word.
I think pesticide that does not decompose as DDT is not a good idea. In around the 60s, there was once a virgin forest in northern China, the trees were infected with some bugs. Some guys brought in 6-6-6 to spray the area by plane. The bug issue was then under control. 30 years later, farmers deforest some of the area and grow crops because it is supposed to be a pristine virgin land. Crops sent to Japan were rejected because of pesticide overdose. Those farmers sworn that they have never used pesticide on those farm land. Then some one skeptic went to investigate and found the pesticide were remained by the spray 30 years ago.
I know people have to use chemicals to control insects. The ones that does not disintegrate is not a good idea.
Google should pick a landing site for the potential candidate to land. It should be visible to most telescopes on earth. The first mission of the robot is to light up something bright so that independent observers can confirm its existence.
>Good for your friend the salesman, and I am glad you know a little.
Yes, he is a salesman, but he will not put a label there saying it can filter out virus as discussed in the parent.
Sand filter has been used over a century, it is a proven technique to filter out bacteria, cyst etc. Which makes a very clean water, in most case drinkable. Does it contain virus, the answer is still yes.
One commercial water filter goes down to 1 micron level, filtration process is quite slow, I still cannot find any manufacturer who would want to make a water filter with a smaller pore size because the flow rate is too slow, so slow that most user would regard it as clogged. AT 1 micron level, still leaves a lot of room for virus to pass through.
As stated in the Biosandfilter instruction, making the sand filter requires clean sand and it has to be flushed until filtered water is clear. Post-Katrina victims might not find this water filter helpful.
My friend sells porcelain filters, so I know a little bit about these things. I would say the Biosandfilter cannot filter out virus as the device in TFA. Filter of pores down to 1 micron is quite slow. To get rid of the virus, you need 20 times smaller. Someone can design a filter with pores that blocks the virus. But it will drip very slowly. Not very practical.
There is little detail in the article of how the filter was made. I have the feeling that it is made by carbon nanotube. The nanotube filter has a nice feature of allowing the fluid flow through in a streamline flow, thus a much faster filter than the conventional one. I just wonder if it is possible to make a DIY carbon nanotube filter by gluing a bundle of nanotube together with epoxy. Then insert into a plastic straw of 1cm diameter. This filter has a small effective area which tend to clog easily. Just cut off the lower part of the nanotube, clogged tube could be used again.
If you don't expect some thing bad to happen, you would not like to shell out $385 for a device that might sit on the shelf for years. If you do expect the outage of water supply, there are lots of cheaper alternatives.
Suppose you are one of the three letter agency and noticed next to your office, there is a new pizza house. They seem to be loading a lot of fuel but serving just a few pizza. So much so, it is enough to knock down any 100+ storey building. Does that sound scary? It will sound more scary if you didn't notice.
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It is just, in my belief, so happened that the clue lies in missing gene of us that makes the difference. During the evolution process, something happened. We lost the ability to grow hair. Imagine our naked ancestors' life in a snowy day 20000 years ago. For survival something must be done to keep warm. Whatever stunt they pulled, the natural selection kept those who could survive and rejected those couldn't. For these naked animals to survive cold winter, they have to use the brain. To transfer fur from other animals to their own protection, and to do the logistics of food in winter, etc.
Then around 8000 years ago, some wise man, who started to 'think' of the distinction between human and other forms of animal. The answer lies around them, it is their own cloth. We don't have fur, so we created cloth to protect ourselves. We don't have $X, let's create $X and then we survive. The argument sounds so well, people put 'creation' as an immortal. And named it as GOD. The idea was so well, that they created GOD in their own image. Yes, not the other way round.
If you wonder why 'the fan club' fight so hard to preach creationism over Darwinism in schools, is because creationism is the founding stone of their belief.
Ok, in my own words, creationism is grown out of evolution. The two ideas run in different directions and they do not conflict each other.
Back to the deterministic and randomness issue. Try this, say a polynomial (x-1)(x-2)(x-3)=0 there are three roots, namely x=1,2,3. Use genetic programming to find roots of this polynomial, with initial value of 0, and a certain objective function. The starting gene which was clueless in beginning start collecting information after a few generations. And soon arrive at one of the roots after some generations, say 3. This part work as a, quite, deterministic search process. And after many generation, the root is still 3. To find the remaining 2 roots one must introduce some randomness to the gene.
did he meant bald?
baidu japan got blocked by GFW. Apparent reason porn related. The link is in Chinese.
That's the lowest bidder syndrome.
steer east to Sahara where rain is most needed.
If the beam hits the power collector, it is governed by DOE. If it hits elsewhere it is governed by DOD. How nice.
Living by SPAM, died like a SPAM
Making SPAM out of SPAM.
OTOH, Apple could satisfy the customer by selling an unlocked model at ten times the price. Doing so, it makes the locked model a real bargain. Which also saved their ass from lawsuits. The consumers can hardly sue Apple for a 10x price tag.
The anti-discrimination movement is, in some way, promoting discrimination.
My friend planned to quit.
Transistor was patented in 1951, size of an IBM is bigger than a room. I think ICs were out of sight. Isn't it amazing to fly something to the orbit with those primitive controls.
You want to *tase* her if you suspected that the girl is wearing a suicide bomb? You must be kidding.
and catch a lot of farmers.
There should be a technical terminology for this. It happened too often in the modern age of video coverage.
Sometimes when people protest, they act peacefully. But when a reporter came along with a camera shooting at him, suddenly the guy act hyperactively for drawing the attention of the reporter, there should be a term to describe such acting. Instead of calling him "PHSCTing" there should be a better word.
I know people have to use chemicals to control insects. The ones that does not disintegrate is not a good idea.
Google should pick a landing site for the potential candidate to land. It should be visible to most telescopes on earth. The first mission of the robot is to light up something bright so that independent observers can confirm its existence.
Yes, he is a salesman, but he will not put a label there saying it can filter out virus as discussed in the parent.
Sand filter has been used over a century, it is a proven technique to filter out bacteria, cyst etc. Which makes a very clean water, in most case drinkable. Does it contain virus, the answer is still yes.
One commercial water filter goes down to 1 micron level, filtration process is quite slow, I still cannot find any manufacturer who would want to make a water filter with a smaller pore size because the flow rate is too slow, so slow that most user would regard it as clogged. AT 1 micron level, still leaves a lot of room for virus to pass through.
As stated in the Biosandfilter instruction, making the sand filter requires clean sand and it has to be flushed until filtered water is clear. Post-Katrina victims might not find this water filter helpful.
In Katrina-ville there is lots of water during the storm, just sell the poor guy a big drum and a plastic sheet to collect rain water.
You don't see much of the sun light when you feet caught in 3 feet of water. As a life-saving device, I would say no.
My friend sells porcelain filters, so I know a little bit about these things. I would say the Biosandfilter cannot filter out virus as the device in TFA. Filter of pores down to 1 micron is quite slow. To get rid of the virus, you need 20 times smaller. Someone can design a filter with pores that blocks the virus. But it will drip very slowly. Not very practical.
There is little detail in the article of how the filter was made. I have the feeling that it is made by carbon nanotube. The nanotube filter has a nice feature of allowing the fluid flow through in a streamline flow, thus a much faster filter than the conventional one. I just wonder if it is possible to make a DIY carbon nanotube filter by gluing a bundle of nanotube together with epoxy. Then insert into a plastic straw of 1cm diameter. This filter has a small effective area which tend to clog easily. Just cut off the lower part of the nanotube, clogged tube could be used again.
If you don't expect some thing bad to happen, you would not like to shell out $385 for a device that might sit on the shelf for years. If you do expect the outage of water supply, there are lots of cheaper alternatives.
That might be true if you filter tap water, but for contaminated water, it could easily clog the filters I know. Might be that's why it cost so much.
most of the area facing water problem also facing power outage problem.
Suppose you are one of the three letter agency and noticed next to your office, there is a new pizza house. They seem to be loading a lot of fuel but serving just a few pizza. So much so, it is enough to knock down any 100+ storey building. Does that sound scary? It will sound more scary if you didn't notice.