If you are working on a computer, you do not have to necessarily "poke around" to see graphic files. You should understand that a technician will need to look at the contents of you drives to some extent, particularly looking at directory listings. Often folders are set to show thumbnails or full size images by default.
You are right that it should not matter whether it is your child or someone you don't know. However, it has been my experience that most people are not this altruistic and have a double standard. It is useful for people who form an opinion about things like this to also consider what their reaction would be if it was their child and if they have a different opinion, to ask themselves why
The article left out a very important fact. From the brief:
While the computer was being serviced,
the service technician viewed some of the files on the computer and
discovered that some of the files contained child pornography.
EFF appears to be ashamed of this "detail" because they left it out of the report on their website.
How do you balance the right of someone to have his child pornography kept private against the right of children not to be victimized by child pornography? What would your opinion be if it was pictures of your child or if you lived near the defendant?
I forgot to answer part of the question. It is mostly a two-body problem--two bodies at a time. Launch is Earth and the spacecraft. Then it is the Sun and the spacecraft. Then it is Mars and the spacecraft. However, to go straight to a transfer orbit without orbiting the earth first, there is only one time of day to launch (local time), different for each destination. In this way the destination planet is considered at Earth launch.
For my mission planning software we never considered more than two bodes at a time. For the real stuff, they probably consider more than two bodies at a time, but the other bodies are just correction factors.
The Mechanical Universe, is an excellent way to learn this stuff. It comes on in reruns from time to time.
I recently wrote some trajectory software for NASA. What I worked on is an approximation used for mission planning, not actual trajectories. I work with people who live and breathe this stuff and have worked on high-thrust and low-thrust trajectories for missions to the outer planets. I am mostly a software engineer, but I learned a lot from them while working on this project.
The key here is the energy required. Space travel is still dominated by propulsion. That is, the engines and the fuel they need, and the fuel needed to launch that fuel to orbit, etc., is where most of the cost is.
It is important to travel on a trajectory, called the transfer orbit, that requires the least energy. For a high thrust spacecraft, the minimum energy trajectory is called a Holman transfer. Simply, it is an orbit that just touches the orbits of both planets. The periapsis, the closest point to the sun, touches the orbit of the one planet and the apoapsis, the furtherest point, touches the other planet. For this to work, the destination planet needs to be half an orbit away when the spacecraft arrives. This is a lot easier to see in a picture.
For Earth to Mars, the spacecraft launches and then the thrusters fire to change the spacecraft's orbit of the sun from Earth's orbit to the transfer orbit. It then travels half of the transfer orbit and fires its thrusters to change its orbit to match Mars. This can be done by aerocapture, aerobraking or propulsion. The opportunity for a Holman transfer to Mars occurs every 26 years. It is based on the length of the orbit for the bodies being transferred between. The return trip also needs to be a Holman transfer to save fuel. The opportunity does not occur until many months after arrival. I forget the actual number. That is why Mars trips will have a long stay on Mars before returning.
Low thrust is different. Low thrust spacecraft thrust all or most of the time during the trip and the trajectory is more complicated. It is not usable for manned flight because it is to slow but is useful for unmanned spacecraft sometimes.
This is called Celestial Mechanics. When you add propulsion, it becomes Orbital Mechanics.
The International Association of Fire Chiefs does not want the change because the new time to switch would not work well with the "check fire alarm batteries when you change your clock" program. That kind of reasoning is ridiculous. Do they really think the US government should set the time for DST changes to suit one group's special program? Talk about special interests.
The purpose of DST is not to remind you when to check your batteries. If it works for that too, fine; but that is something extra, not the reason for DST. Support or oppose the DST change for REAL reasons.
From the article:
For years, the International Association of Fire Chiefs has framed a widespread public information campaign around Daylight Saving Time, reminding people to change the batteries in their smoke and carbon monoxide detectors when they change their clocks. The last weekend in November is too late for the reminder, fire officials say.
It has no structure or elegance; it is just a plian, simple list
I was talking about the list on the right of the chart. In the "old chart" this information was in the chart and so followed its structure. In the "new chart" the properties (weight, etc.) are in a simple list on the right of the chart.
The new table looks interesting and it does give a new perspective, but I don't think it will replace the old periodic table. The main reason is that the "table" is mostly whitespace, or in this case, blackspace. Because of this the symbol for eachelement is written so small that it is hard to read and the other information is relegated to a list on the side. People complain who complain about the inelegance of the current periodic table should complain even louder about this list. It has no structure or elegance; it is just a plian, simple list.
The current list has its flaws, but the elements are organized and structured and there is room for the properties of each element on the chart, not on the side as an afterthought.
This reminds me of an Isaac Asimov story, I think it is "The Life and Times of Multivac". As I remember it, the "ultimate penalty" is reserved for only the crime of attacking a computer, (or THE computer really). The story talked about how damage to Multivac would damage society. Very similar to the arguments being put forth here. Once more sci-fi predicts the future.
There are a lot of replies already, but I'll replay anyway since I am probably one of the very few people who can actually answer the question.
Many years ago I switched to DSK on my own computer (Apple II), but still had to type on QWERTY keyboards everywhere else. After I learned DSK, I found I could switch back and forth with no effort. I didn't even need to think about it. My mind automatically switched each time I switched computers. I see no reason why this shouldn't work for everyone, but I don't for sure.
Very good point. I'd give you my last mod point, but I've already posted here. I too encourage those who reply to show restraint.
I sent a short email (50 words or so) using the contact page that basically said "The guy was trying to help. Leave him alone." My point was to let them know people support Chip, not to aggravate them.
Please Contribute. Thank you for spending time on our site. It will be updated frequently. Please come back.
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principals or employees, or agents or experts who have been retained in any capacity in connection with the case.
Information on this site is for educational purposes.
Case Caption: Health Market Science, Inc. v Charles H. Salzenberg, Jr..
Court of Common Pleas of Montgomery County, Pennsylvania. Case Number: 05-11918
Chip Salzenberg Defense Fund
Please mirror this site. Learn from it and protect yourself.
We need your financial assistance to continue the fight.
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OMITTED from the Company's Pleadings, UN-INVESTIGATED by the Detective,
it caused IMMEDIATE ACTION by the CEO,
READ the LETTER that started it all!
Why 23 million telecommuters need to be worried about this case
Or: How your life can land into the "wrong hands".
Twenty-three million telecommuters (IATC 2003) access their employer's network from home. Some use their own personal computers, while others use a computer their employer assigned to them by their employer. Some bring their laptop to and from work. Do you? Should a dispute arise between you and your employer, you may be exposed to the legal tactics and strategies used by Chip's employer.
The company can file a police report, show logs of your network activity, convince the often insufficiently sophisticated police that your behavior is suspicious and claim they are in "fear" of the loss of their property and/or trade secrets and potentially millions of dollars of profits . If you're a programmer, that is your job description permits you to "appropriate" huge source code downloads with only even less uploads - exposing you to a "claim" of theft of your company's confidential and proprietary information and trade secrets. All the while you are having an exchage with the CEO by
It is called Scoop and you can see it at (among other places) SciScoop.com. Everyone gets to vote on stories, not just the moderators. I post several articles a week myself.
The study referred to in the story was published last year in Critical Reviews in Plant Sciences. Abstract free, the article, like most journal articles, is probably very expensive.
This is old news. The original report was published in Nature in April.
It was reported on in the press (MSNBC) and Slashdot had a lively discussion here and slashdotted a UCLA server. There is more at a (hopefully non-slashdotted) UCLA website.
I sure am glad that SlashDot covers these important technological issues because we sure won't be able to read about this story in the mainstream press.
I read an interesting article a few years ago at wired.com about the state of the "artificial diamond" industry. It is a bit long and from 2003, but it is very interesting.
From the article:
De Beers executive drove directly to Claridge's, and the two men sat down in the tearoom to the strains of a piano and violin duet. De Beers refuses to comment on the meeting--or about anything for this story--but Clarke says he simply placed his diamonds on the table. "When I told him that we planned to set up a factory to mass-produce these, he turned white," the General recalls.
Slashdot Mirror
If you are working on a computer, you do not have to necessarily "poke around" to see graphic files. You should understand that a technician will need to look at the contents of you drives to some extent, particularly looking at directory listings. Often folders are set to show thumbnails or full size images by default.
You are right that it should not matter whether it is your child or someone you don't know. However, it has been my experience that most people are not this altruistic and have a double standard. It is useful for people who form an opinion about things like this to also consider what their reaction would be if it was their child and if they have a different opinion, to ask themselves why
While the computer was being serviced, the service technician viewed some of the files on the computer and discovered that some of the files contained child pornography.
EFF appears to be ashamed of this "detail" because they left it out of the report on their website.
How do you balance the right of someone to have his child pornography kept private against the right of children not to be victimized by child pornography? What would your opinion be if it was pictures of your child or if you lived near the defendant?
Yea. Maybe that was my only typing/brain-use mistake in the post, but I doubt it.
For my mission planning software we never considered more than two bodes at a time. For the real stuff, they probably consider more than two bodies at a time, but the other bodies are just correction factors.
The Mechanical Universe, is an excellent way to learn this stuff. It comes on in reruns from time to time.
The key here is the energy required. Space travel is still dominated by propulsion. That is, the engines and the fuel they need, and the fuel needed to launch that fuel to orbit, etc., is where most of the cost is.
It is important to travel on a trajectory, called the transfer orbit, that requires the least energy. For a high thrust spacecraft, the minimum energy trajectory is called a Holman transfer. Simply, it is an orbit that just touches the orbits of both planets. The periapsis, the closest point to the sun, touches the orbit of the one planet and the apoapsis, the furtherest point, touches the other planet. For this to work, the destination planet needs to be half an orbit away when the spacecraft arrives. This is a lot easier to see in a picture.
For Earth to Mars, the spacecraft launches and then the thrusters fire to change the spacecraft's orbit of the sun from Earth's orbit to the transfer orbit. It then travels half of the transfer orbit and fires its thrusters to change its orbit to match Mars. This can be done by aerocapture, aerobraking or propulsion. The opportunity for a Holman transfer to Mars occurs every 26 years. It is based on the length of the orbit for the bodies being transferred between. The return trip also needs to be a Holman transfer to save fuel. The opportunity does not occur until many months after arrival. I forget the actual number. That is why Mars trips will have a long stay on Mars before returning.
Low thrust is different. Low thrust spacecraft thrust all or most of the time during the trip and the trajectory is more complicated. It is not usable for manned flight because it is to slow but is useful for unmanned spacecraft sometimes.
This is called Celestial Mechanics. When you add propulsion, it becomes Orbital Mechanics.
The best site I have found is NASA's Spacefligh Basics.
Also good is this site.
For explanation of gravity assists see this site.
Also see, Science World at Wolrram
Good one. Now, for the 99% of the rest of the world who don't have a clue, see a description.
The purpose of DST is not to remind you when to check your batteries. If it works for that too, fine; but that is something extra, not the reason for DST. Support or oppose the DST change for REAL reasons.
From the article:
For years, the International Association of Fire Chiefs has framed a widespread public information campaign around Daylight Saving Time, reminding people to change the batteries in their smoke and carbon monoxide detectors when they change their clocks. The last weekend in November is too late for the reminder, fire officials say.
I was talking about the list on the right of the chart. In the "old chart" this information was in the chart and so followed its structure. In the "new chart" the properties (weight, etc.) are in a simple list on the right of the chart.
The current list has its flaws, but the elements are organized and structured and there is room for the properties of each element on the chart, not on the side as an afterthought.
This reminds me of an Isaac Asimov story, I think it is "The Life and Times of Multivac". As I remember it, the "ultimate penalty" is reserved for only the crime of attacking a computer, (or THE computer really). The story talked about how damage to Multivac would damage society. Very similar to the arguments being put forth here. Once more sci-fi predicts the future.
There are a lot of replies already, but I'll replay anyway since I am probably one of the very few people who can actually answer the question.
Many years ago I switched to DSK on my own computer (Apple II), but still had to type on QWERTY keyboards everywhere else. After I learned DSK, I found I could switch back and forth with no effort. I didn't even need to think about it. My mind automatically switched each time I switched computers. I see no reason why this shouldn't work for everyone, but I don't for sure.
Very good point. I'd give you my last mod point, but I've already posted here. I too encourage those who reply to show restraint.
I sent a short email (50 words or so) using the contact page that basically said "The guy was trying to help. Leave him alone." My point was to let them know people support Chip, not to aggravate them.
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Please Contribute. Thank you for spending time on our site. It will be updated frequently. Please come back.
None of the views expressed in the website constitute the views of the Armstrong & Carosella PC law firm, or any
principals or employees, or agents or experts who have been retained in any capacity in connection with the case.
Information on this site is for educational purposes. Case Caption: Health Market Science, Inc. v Charles H. Salzenberg, Jr..
Court of Common Pleas of Montgomery County, Pennsylvania. Case Number: 05-11918
Chip Salzenberg Defense Fund
Please mirror this site. Learn from it and protect yourself.
We need your financial assistance to continue the fight.
Donate Now.
OMITTED from the Company's Pleadings,
UN-INVESTIGATED by the Detective,
it caused IMMEDIATE ACTION by the CEO,
READ the LETTER that started it all!
Why 23 million telecommuters need to be worried about this case
Or: How your life can land into the "wrong hands".
Twenty-three million telecommuters (IATC 2003) access their employer's network from home. Some use their own personal computers, while others use a computer their employer assigned to them by their employer. Some bring their laptop to and from work. Do you? Should a dispute arise between you and your employer, you may be exposed to the legal tactics and strategies used by Chip's employer.
The company can file a police report, show logs of your network activity, convince the often insufficiently sophisticated police that your behavior is suspicious and claim they are in "fear" of the loss of their property and/or trade secrets and potentially millions of dollars of profits . If you're a programmer, that is your job description permits you to "appropriate" huge source code downloads with only even less uploads - exposing you to a "claim" of theft of your company's confidential and proprietary information and trade secrets . All the while you are having an exchage with the CEO by
The website of Health Market Science of King of Prussia, PA and their contact page and their email address info@healthmarketscience.com.
It is called Scoop and you can see it at (among other places) SciScoop.com. Everyone gets to vote on stories, not just the moderators. I post several articles a week myself.
The study referred to in the story was published last year in Critical Reviews in Plant Sciences. Abstract free, the article, like most journal articles, is probably very expensive.
There are 2 types of people in the world: those who divide everyone into two types and those who don't.
A: None. It's a hardware problem.
It was reported on in the press (MSNBC) and Slashdot had a lively discussion here and slashdotted a UCLA server. There is more at a (hopefully non-slashdotted) UCLA website.
I sure am glad that SlashDot covers these important technological issues because we sure won't be able to read about this story in the mainstream press.
From the article:
De Beers executive drove directly to Claridge's, and the two men sat down in the tearoom to the strains of a piano and violin duet. De Beers refuses to comment on the meeting--or about anything for this story--but Clarke says he simply placed his diamonds on the table. "When I told him that we planned to set up a factory to mass-produce these, he turned white," the General recalls.
Uh, I volunteer to help distribute the money. Just deposit it in my PayPal account and I'll take care of the rest.
Also see the article in Nature.