See if you can get him or her to join a group outdoors activity like camping. Not necessarily something as formal as scouting. In fact, the less formal, the better.
Nature offers some fun science and a chance to develop other areas of interest. Being a part of a camping group is a good way to learn to interact, because everyone has a responsibility (get water, collect wood, etc.) and kids learn their individual responsibilities contribute to the groups well-being. Good adult guidance is a must.
Worked great for the English as a Second Language class that joined my high school outings. And most of them came to the midwest from much warmer climes.
Yes, it would be racist to make a Hitler joke to a German-American. I am part German, and my great-great-grandfather got chased out of Germany because he was a Prussian Army officer who tried to overthrow Bismark. Seems he had a problem with an expansionist Germany in the years before the 1870 Franco-Prussian War. Too bad he and his "conspirators" failed. Might have been a little less genocide in the 20th century had they suceeded. But they became Americans, and I'm glad they did.
Yes, it would be both ignorant and racist to make a Hitler joke about a Swede. The Swedes have been non-aligned for a long time.
No, my German relatives were not even "broadly" related to Swedes. They were, umm, Germans.
And if you would not repeat the comment or make a Charlie joke to someone of Vietnamese descent, doesn't that speak about the offensive nature of the comment? Doesn't the AC posting speak for the hatefulness of the post?
The original comment was posted by an AC. Obviously, this is someone who does not want to be held accountable.
That post is ignorant at best, but more likely just racist. Sometimes, people who fled totalitarian countries are the most ardent supporters of American freedoms. I can't read into the heart and mind of Viet Dinh, but your post is contemptible.
I was at a course outside DC and one of the students in the class was originally from South Viet Nam. His dad got the family out on a rickety boat, but didn't get himself out before the Communists put a quick bullet in his head. After learning English in an old Army barracks refuge camp, he got an education and became an American citizen. The guy is quite successful and pure capitalist.
But he was without a car at the class and begged me to take him for a tour of downtown DC at night so he could see out monuments to liberty and freedom. Hey, DC traffic is the pits, but how can you deny someone with his story the opportunity to see the monuments to the dream many in the world never get to realize -- freedom.
You can't differnetiate the mineralogy of a wind-deposited from a water-deposited rock? Umm, might want to try playing a new game. Or, take some sophomore geology courses. Stratigraphy and Sedimentation, Petrology and Mineralogy and Crystallography would be a good start.
Granted, the source minerals are a little different on Mars, but the instrumentation will tell us what they are in detail. But any competent geologist can make that determination by the Junior year in school.
I use a FreeBSD-based CD firewall (netboz) and have it set up as a VMWare guest OS.
I like the OS, and find the syntax of its firewall rules a little easier to write from the CL than Linux iptables. The tuned kernel, memory and disk utilization were the seller for me on the firewall. Fast and stable.
As far as not being a good desktop OS, I'm not sure what the reviewer expects of a desktop. It lacks the 3D games and fluff, but for a business developer's or power user's destop, it's pretty solid and fast.
Too bad you don't get to experience some real rail. I live within walking distance of a regional rail line and get to take it to work on my better days.
How does it comapre? Rail: talk to new people and make friends; might be 10 minutes late. Car: isolated experience and sometimes people try to wreck with my piddly $25 grand rolling investment.
Before/. techno geeks laugh at this guy's dedication to the hobby too loudly, remember that the railroads were the work of America's original high-tech geeks. This is much more impressive than running a Trash 80.
Railroaders were the technical cutting edge of the 19th century. Financial over-investments in transportation (both canals and rail) contributed to the 1837 Panic. Gee, times have changed (heh!).
Yeah, I play Loki's RT2 Linux port. But I'm not knowledgable enough about the real thing to be a credible rail fan.
The point is, the specimen is contaminated and only limited samples are available. NASA held out the "Life on Mars" sample until its outrageous conclusions were forced into the public eye. They tried to prohibit peer review. Once a rare sample is set aside as untouchable, forget about validation.
We'll be getting important data from validated samples from the rovers and that data will be available to all for peer review.
Flying Mars rocks back to earth? Flying an kewl earth lab, all its equipent and employees to Mars? Flying people to Mars to collect rocks and bring them back to earth?
PLEASE send me some of the 'shrooms you ate before posting that comment.
Uhhh, yeah. That rover we have on the surface just happened to have been hit by a high kinetic energy earth rock before its perfectly successful, landing. And the meteorite did no damage.
Can you share some of the stuff you and Daryl have been smoking? Must be real good. Just make sure my friends c-c-c-cut me off be-e-e-fore I get p-p-p-paranoid and d-d-d-delusional.
Oh, you have no idea how well you summed up the petrology of this meterorite:
"It is described as a peridotite, an extremely rare type of Mars rock consisting of the minerals olivine, pyroxene and plagioclase glass."
This beastie originated near the mantle, at great depth. And there is NO water down there. If the meteorite contains water, it may be from Mars, but it may also be contamination from earth.
I've seen zero evidence for either, and after NASA claimed they had proof of Mars life in a meteorite, I will accept no evidence until validated by and outside lab.
Ask yourself this. Why don't we do that on earth to harness free energy to smelt ores? Because the reflector would have to be huge and prohibitively expensive to focus enough energy to smelt an ore.
We use fossil fuels on earth because they are cheaper. So much cheaper that we can mine gold, platinum and cheaper ores like copper, put them on trains to ports, ship them overseas and smelt them there. That includes the price of labor to extract fuel and operate the plants.
They said there is about 70 tons He3 per million tons of regolith.
That comes in at concentrations that would be a nice gold or platinum deposit on earth (about 1.75 oz/ton He3), but is a very low concentration for anything other than a precious metal. The extraction temp quoted in the article is 800C (1470F) and would require a lot of energy. This would require very large solar panels and MANY trips to get them up there.
No, you are not going to fabricate solar panels on the moon. The moon's regolith is composed of refractory minerals like anorthite that (while benched in a NASA lab yield silica) are not feasible as silica sources because of the high energy requirements and expensive crucibles needed.
Then there is the distribution of He3 in regolith. If it only occurs in the top few inches of regolith, you need the kind of equipment that can mine only that portion. Otherwise you dilute the ore feed and end up treating material devoid of the resource at great cost.
Then you have to deal with removing the gasses that come off in addition to H3. Water and O2 woudl be useful, but F, Cl and the other volatiles typically found in rocks and regolith would be a problem.
Assuming we come up with a feasible fusion reactor, it looks like it will be cheaper to deal with neutrons than import a clean fuel from the moon.
Ahh, an Artemis Project believer. Explains it all. Don't know why I bother with ACs.
You are not going to extract silica, let alone silicon, from anorthosite. The article is pseudo-science based upon flawed suppositions. Aand that came from a quick read of the silica source section. But without a viable source of silica, the rest of the article is all mental masturbation.
Give me a call when you understand basic mineralogy and petrology (the sciences of minerals and rocks).
Actually, a question well put.
They are a problem only in that they are not a useful by-product. They are simply a waste material that must be removed from useful gasses derived from the extraction process. They pose a problem in the process of getting He3, water and anything else useful.
Make metal mirrors from what ore? The place is mafic rocks. Not good candidates for metal extraction. And if metals were found as "ore," you would still need a lot of water and energy to recover them.
Silicon exctraction requires a lot of energy, a specific mineral source (not found in regolith) and a good plant and water.
Nuclear fission reactors capable of pushing a sub through water are about 1/4 of that sub's size. Not something trivial to assemble or maintain.
You can't just heat the upper few millimeters of soil. We'd heat ore in situ for extraction if that were possible. Heat flows into colder bodies. One of the almost immutable laws of thermodynamics; the only exception to which is the domestic cat -- into which all heat flows.
They said there is about 70 tons He3 per million tons of regolith.
That comes in at concentrations that would be a nice gold or platinum deposit on earth (about 1.75 oz/ton He3), but is a very low concentration for anything other than a precious metal. The extraction temp quoted in the article is 800C (1470F) and would require a lot of energy. This would require very large solar panels and MANY trips to get them up there.
No, you are not going to fabricate solar panels on the moon.
Then there is the distribution of He3 in regolith. If it only occurs in the top few inches of regolith, you need the kind of equipment that can mine only that portion. Otherwise you dilute the ore feed and end up treating material devoid of the resource at great cost.
Then you have to deal with removing the gasses that come off in addition to H3. Water and O2 woudl be useful, but F, Cl and the other volatiles typically found in rocks and regolith would be a problem.
Assuming we come up with a feasible fusion reactor, it looks like it will be cheaper to deal with neutrons than import a clean fuel from the moon.
Dude, you obviously know little about UXO. It may be one tool, but it is not reliable in making determinations about UXO. At best, this is a limited tool for only one source of UXO.
Most of the UXO they deal with in Europe is artillery shells and mines, and they do not have any kind of regular pattern.
Talk to one of the large group of Belgian engineers who are still disposing of it. And not just WWII aerial bombs, but artillery from BOTH World Wars. Including the gift that keeps on giving, chemical munitions. The mines were concealed in the first place.
Most UXO is found the old fashioned way -- farmers and construction workers who call it in.
Slashdot Mirror
See if you can get him or her to join a group outdoors activity like camping. Not necessarily something as formal as scouting. In fact, the less formal, the better.
Nature offers some fun science and a chance to develop other areas of interest. Being a part of a camping group is a good way to learn to interact, because everyone has a responsibility (get water, collect wood, etc.) and kids learn their individual responsibilities contribute to the groups well-being. Good adult guidance is a must.
Worked great for the English as a Second Language class that joined my high school outings. And most of them came to the midwest from much warmer climes.
Yes, it would be racist to make a Hitler joke to a German-American. I am part German, and my great-great-grandfather got chased out of Germany because he was a Prussian Army officer who tried to overthrow Bismark. Seems he had a problem with an expansionist Germany in the years before the 1870 Franco-Prussian War. Too bad he and his "conspirators" failed. Might have been a little less genocide in the 20th century had they suceeded. But they became Americans, and I'm glad they did.
Yes, it would be both ignorant and racist to make a Hitler joke about a Swede. The Swedes have been non-aligned for a long time.
No, my German relatives were not even "broadly" related to Swedes. They were, umm, Germans.
And if you would not repeat the comment or make a Charlie joke to someone of Vietnamese descent, doesn't that speak about the offensive nature of the comment? Doesn't the AC posting speak for the hatefulness of the post?
The original comment was posted by an AC. Obviously, this is someone who does not want to be held accountable.
Yeah, contemptible. An AC post that inflamatory indicates a lack of willingness to be accountable for the comment.
That post is ignorant at best, but more likely just racist. Sometimes, people who fled totalitarian countries are the most ardent supporters of American freedoms. I can't read into the heart and mind of Viet Dinh, but your post is contemptible.
I was at a course outside DC and one of the students in the class was originally from South Viet Nam. His dad got the family out on a rickety boat, but didn't get himself out before the Communists put a quick bullet in his head. After learning English in an old Army barracks refuge camp, he got an education and became an American citizen. The guy is quite successful and pure capitalist.
But he was without a car at the class and begged me to take him for a tour of downtown DC at night so he could see out monuments to liberty and freedom. Hey, DC traffic is the pits, but how can you deny someone with his story the opportunity to see the monuments to the dream many in the world never get to realize -- freedom.
Give it up, /.
This isn't news. Go to groklaw if you want to read somthing up to date and informative.
'If you're a bad guy and you want to frustrate law enforcement, use a Mac.'
That's the most enlightened idea out of federal law enforcement since they audited Al Capone. No, wait...
You can't differnetiate the mineralogy of a wind-deposited from a water-deposited rock? Umm, might want to try playing a new game. Or, take some sophomore geology courses. Stratigraphy and Sedimentation, Petrology and Mineralogy and Crystallography would be a good start.
Granted, the source minerals are a little different on Mars, but the instrumentation will tell us what they are in detail. But any competent geologist can make that determination by the Junior year in school.
I use a FreeBSD-based CD firewall (netboz) and have it set up as a VMWare guest OS.
I like the OS, and find the syntax of its firewall rules a little easier to write from the CL than Linux iptables. The tuned kernel, memory and disk utilization were the seller for me on the firewall. Fast and stable.
As far as not being a good desktop OS, I'm not sure what the reviewer expects of a desktop. It lacks the 3D games and fluff, but for a business developer's or power user's destop, it's pretty solid and fast.
Too bad you don't get to experience some real rail. I live within walking distance of a regional rail line and get to take it to work on my better days.
How does it comapre? Rail: talk to new people and make friends; might be 10 minutes late. Car: isolated experience and sometimes people try to wreck with my piddly $25 grand rolling investment.
Well, you've got it on me. I live a mile from the Eddystone Baldwin works (now a Wal Mart) and hang in South Philly near the original Baldwin works.
People care about rail in PA, but they'd rather have a Rails-to-Trails project so the hordes can mountain bike.
Very few rail lovers left. Shoot me a URL if you know of people interested in saving SE PA heritage.
Before /. techno geeks laugh at this guy's dedication to the hobby too loudly, remember that the railroads were the work of America's original high-tech geeks. This is much more impressive than running a Trash 80.
Railroaders were the technical cutting edge of the 19th century. Financial over-investments in transportation (both canals and rail) contributed to the 1837 Panic. Gee, times have changed (heh!).
Yeah, I play Loki's RT2 Linux port. But I'm not knowledgable enough about the real thing to be a credible rail fan.
OK, I got a bit bitchy.
The point is, the specimen is contaminated and only limited samples are available. NASA held out the "Life on Mars" sample until its outrageous conclusions were forced into the public eye. They tried to prohibit peer review. Once a rare sample is set aside as untouchable, forget about validation.
We'll be getting important data from validated samples from the rovers and that data will be available to all for peer review.
What is a hell of a lot cheaper?
Flying Mars rocks back to earth? Flying an kewl earth lab, all its equipent and employees to Mars? Flying people to Mars to collect rocks and bring them back to earth?
PLEASE send me some of the 'shrooms you ate before posting that comment.
Uhhh, yeah. That rover we have on the surface just happened to have been hit by a high kinetic energy earth rock before its perfectly successful, landing. And the meteorite did no damage.
Can you share some of the stuff you and Daryl have been smoking? Must be real good. Just make sure my friends c-c-c-cut me off be-e-e-fore I get p-p-p-paranoid and d-d-d-delusional.
Oh, you have no idea how well you summed up the petrology of this meterorite:
"It is described as a peridotite, an extremely rare type of Mars rock consisting of the minerals olivine, pyroxene and plagioclase glass."
This beastie originated near the mantle, at great depth. And there is NO water down there. If the meteorite contains water, it may be from Mars, but it may also be contamination from earth.
I've seen zero evidence for either, and after NASA claimed they had proof of Mars life in a meteorite, I will accept no evidence until validated by and outside lab.
Good question.
Ask yourself this. Why don't we do that on earth to harness free energy to smelt ores? Because the reflector would have to be huge and prohibitively expensive to focus enough energy to smelt an ore.
We use fossil fuels on earth because they are cheaper. So much cheaper that we can mine gold, platinum and cheaper ores like copper, put them on trains to ports, ship them overseas and smelt them there. That includes the price of labor to extract fuel and operate the plants.
We have rovers on Mars collecting data that has no chance of being contaminated by a meteorite impact, travel through space and terrestrial processes.
I'll take data from the horse's mouth.
Rock on, Rovers!
I repeat:
0 06 30.html
I did a back of the napkin based upon the He3 info posted on space.com.
http://www.space.com/scienceastronomy/helium3_0
They said there is about 70 tons He3 per million tons of regolith.
That comes in at concentrations that would be a nice gold or platinum deposit on earth (about 1.75 oz/ton He3), but is a very low concentration for anything other than a precious metal. The extraction temp quoted in the article is 800C (1470F) and would require a lot of energy. This would require very large solar panels and MANY trips to get them up there.
No, you are not going to fabricate solar panels on the moon. The moon's regolith is composed of refractory minerals like anorthite that (while benched in a NASA lab yield silica) are not feasible as silica sources because of the high energy requirements and expensive crucibles needed.
Then there is the distribution of He3 in regolith. If it only occurs in the top few inches of regolith, you need the kind of equipment that can mine only that portion. Otherwise you dilute the ore feed and end up treating material devoid of the resource at great cost.
Then you have to deal with removing the gasses that come off in addition to H3. Water and O2 woudl be useful, but F, Cl and the other volatiles typically found in rocks and regolith would be a problem.
Assuming we come up with a feasible fusion reactor, it looks like it will be cheaper to deal with neutrons than import a clean fuel from the moon.
Ahh, an Artemis Project believer. Explains it all. Don't know why I bother with ACs.
You are not going to extract silica, let alone silicon, from anorthosite. The article is pseudo-science based upon flawed suppositions. Aand that came from a quick read of the silica source section. But without a viable source of silica, the rest of the article is all mental masturbation.
Give me a call when you understand basic mineralogy and petrology (the sciences of minerals and rocks).
Actually, a question well put. They are a problem only in that they are not a useful by-product. They are simply a waste material that must be removed from useful gasses derived from the extraction process. They pose a problem in the process of getting He3, water and anything else useful.
Make metal mirrors from what ore? The place is mafic rocks. Not good candidates for metal extraction. And if metals were found as "ore," you would still need a lot of water and energy to recover them.
Silicon exctraction requires a lot of energy, a specific mineral source (not found in regolith) and a good plant and water.
Nuclear fission reactors capable of pushing a sub through water are about 1/4 of that sub's size. Not something trivial to assemble or maintain.
You can't just heat the upper few millimeters of soil. We'd heat ore in situ for extraction if that were possible. Heat flows into colder bodies. One of the almost immutable laws of thermodynamics; the only exception to which is the domestic cat -- into which all heat flows.
I did a back of the napkin based upon the He3 info posted on space.com.
0 06 30.html
http://www.space.com/scienceastronomy/helium3_0
They said there is about 70 tons He3 per million tons of regolith.
That comes in at concentrations that would be a nice gold or platinum deposit on earth (about 1.75 oz/ton He3), but is a very low concentration for anything other than a precious metal. The extraction temp quoted in the article is 800C (1470F) and would require a lot of energy. This would require very large solar panels and MANY trips to get them up there.
No, you are not going to fabricate solar panels on the moon.
Then there is the distribution of He3 in regolith. If it only occurs in the top few inches of regolith, you need the kind of equipment that can mine only that portion. Otherwise you dilute the ore feed and end up treating material devoid of the resource at great cost.
Then you have to deal with removing the gasses that come off in addition to H3. Water and O2 woudl be useful, but F, Cl and the other volatiles typically found in rocks and regolith would be a problem.
Assuming we come up with a feasible fusion reactor, it looks like it will be cheaper to deal with neutrons than import a clean fuel from the moon.
Funny, but it happens sometimes.
Worked on a site where a whole crew digging a new sewer line got blown up. Bad scene, as the work site had been certified clear.
Dude, you obviously know little about UXO. It may be one tool, but it is not reliable in making determinations about UXO. At best, this is a limited tool for only one source of UXO.
Most of the UXO they deal with in Europe is artillery shells and mines, and they do not have any kind of regular pattern.
Talk to one of the large group of Belgian engineers who are still disposing of it. And not just WWII aerial bombs, but artillery from BOTH World Wars. Including the gift that keeps on giving, chemical munitions. The mines were concealed in the first place.
Most UXO is found the old fashioned way -- farmers and construction workers who call it in.