A proton (or other particle) at full speed in the LHC:
7 trillion electron Volts
7.0 * 10 ^9 eV.
A 100 watt light bulb burning for one hour:
2.2 * 10 ^24 eV
So the light bulb represents 3.1* 10 ^14 (that’s 310,000,000,000,000) times the energy of the particle accelerated in the LHC.
7 trillion eV is really, really small.
...doesn't require nearly as much active maintenance, as in, driving over it with snowploughs when it snows, to be able to drive on it at all.
Having driven all sorts of roads and being from Buffalo, NY, I'm confused by the contention that you don't have to plow or salt/sand a gravel road. I'm sure the folks in Michigan can tell you that a road (no matter what it's made out of) has to be kept clear of ice and snow to be passable in the winter. Maybe you live in a much warmer clime?
If the kid can pass the class without being in it, why are we forcing them to take it anyway?
The idea of our education system should be to make the smartest members of society that we can. It doesn't make any sense to have them take that class, they have already mastered it. It makes sense to have them take a more advanced class and keep them learning. The policy of letting them just skip it drives those kids back the the average rather than providing for them to excel.
Obviously "No Child Left Behind" simply means "Lower the standards so everyone passes". The combination of these two policies just produces kids with ever less education.
Perhaps not individually, but as a mass, they are. Surely obsese people don't like being called "fat tub of lard" but in the end they do nothing to improve their condition....
Score:5 Insightful? You must be kidding. Clearly this posting is flamebait (and I'm taking it). "In the end they do nothing..." Not one single obese person does anything about being obese? You are telling us that, as a class, obese people simply just go on eating and just want to feel better about themselves? You are clearly making yourself look like an ignorant bigot. JW
For heaven's sake, this isn't F----d Company.com. This business of publishing stupid emails or hacking on lousy books does not belong on Slashdot - News for Nerds, Stuff that matters.
You don't have to be qualified to have an opinion. True enough. But... What makes a democracy work for the good of the people, is not just having an opinion, but making an informed decision. Back when I was learning about rights, they taught us that rights come with responsibilities. It is our right to vote and the responsibilities are: 1. Vote! and 2. Become educated on the issue(s) and make the best decision you can. If the issue involves some science or math that you don't understand, then it's all just about rhetoric isn't it?
That's a great idea! Then we would have the "family section" - so business travelers don't have to put up with screaming kids, the "crackberry section" (also the cell phone section) - for those who's connection to the office must be continuous else the entire organization will fail (or who are 17 yr. old girls), the "conducting business" section - for those business travelers who can only complete the big deal on a plane, the "sweethearts section" - this is slashdot, so you wouldn't understand, the section for "those who can have a conversation while both speaking simultaneously and without stopping to take a breath", and finally the "can I just get a little peace and quiet section so I can do a little work, read or sleep?" (where I will be).
When returning books: Find the UPC of the "New" edition, slap it on your old edition and return it. Do it during the highest rush when the checkers in are just trying to get through everyone. I think I would net around $100 a semester buying $5 books and returning them for $30. Screw you book store.
A large source of data that has a correlation does not somehow imply causation. Even if it works under some conditions (or even all conditions). The science happens when the causation is determined and then applied.
Um, The point of the previous posts...
begin sarcasm
"Of course what is printed on the paper identically matches what was recorded electronically by the machine."
end sarcasm
By definition, the electronic voting system abstracts the voter from the vote. The evidence of potential fraud exists already - it's an electronic voting system.
Well, OK, an autopilot for a helicopter doesn't make much sense because it doesn't spend a lot of time going in one direction very long. Not really designed for that. I have noticed though that things like the Saturn five rocket and the shuttle get straight off the ground and don't have someone at the controls... By the way, a "jet pack" and a "rocket pack" are two completely different animals. A rocket works by pouring a fuel and an oxidizer into a small space (usually burning) and blasting them out through a nozzle. The only moving parts are in the pumps. There are solid versions too that just don't have pumps but still burn some fuel and squeeze it out of a nozzle. A jet pack, needs a whole lot of rotating parts (compressor and turbine at least) and also barfs out a lot of hot stuff.
I'm thinking that was not written by an EE (or anybody else that commonly speaks about electronics and efficiency.) I would suppose they operate at 1.5 volts and consume some number of amps. Volts alone doesn't say much about their power consumption... (P=IE)
In short, these technologies have enabled the individual to do things that previously only specialists could do, and have allowed everyone to complete their work faster than before.
That's just the half of it. Now that you are more productive, you can do 10 of these jobs where you used to do just one. Most people think, "When I'm more productive I'll get my work done in less time." But that's not it. They just get to do more work and everyone has the ability to do more work so there is no net gain for anyone. "Everyone is special is just a way of saying no one is."
Actually I think there are a lot more problems than just downwash. A wing or a helicopter blade produce that downwash from three components of their physical design:Camber, Thickness, and Angle of attack.
If you want to be very efficient (at "low" speed), you should make use of all of these.
For obvious reasons (the blade will be upside down when it is on the bottom and camber going the wrong way is not very efficient in producing lift) the blade cannot have any camber. That eliminates one part of the lift producing capability of the blade. So we have lost some efficiency right there.
There is an analog to the "retreating blade stall" that helicopters suffer from - this is when the speed of the helicopter (a positive value) is added to the speed of the tip of the blade that is going backwards (a negative value). You can see that as the forward speed of the helicopter increases, the speed of the retreating tip goes down and that = less lift (the one on the other side goes faster, so it's busy making more lift - what a pain!) In the cyclogyro, the blade at the bottom would suffer a similar problem. Eventually (and pretty quickly) the bottom blade would not be contributing to lift at all and then will be going backwards through the free stream. A tremendous loss of efficiency although no real problem for roll stability like the helicopter.
Also as the plane moves forward the blades can no longer just point up and down as they go around the circle in the front down and back up parts of the cycle. They will have to be pointed more and more forward as the speed increases. This in turn will mean they have to be returned to a near flat position more quickly as the forward speed increases.
The design will have to have differential control of pitch of the blades in order to turn or a tail rotor. Part of the efficiency claim is no tail rotor, so the pitch will have to be varied for and aft to create more thrust on one side over the other to turn the plane and also on top and bottom of each side independently to roll the plane in order to make a "coordinated turn". (Not required, but makes flying feel a lot better).
I don't think a simple mechanical control system that can't vary the amount of pitch applied anywhere around the cycle would be very effective. At the time this design first came around, there were no sophisticated control systems that could do these things. Seems that now it would be a piece of cake.
(yes, I am a rocket scientist)
JW
I'm a little foggy on the whole free speech thing - really...
Amendment I
Congress shall make no law respecting an establishment of religion, or prohibiting the free exercise thereof; or abridging the freedom of speech, or of the press; or the right of the people peaceably to assemble, and to petition the government for a redress of grievances.
Rights come with responsibilities (least that what I learned in school). The right of free speech comes with the responsibility not to use it to slander or for libelous speech. Is free speech the same as anonymous speech? Isn't that the root issue here? When an article is published in a newspaper, it is attributed to someone. If the paper publishes it and there is no attribution, they are responsible. In the event of libel, there is a path back to the "speaker". With anonymous free speech, that connection is lost. The victim of the libel or slander has no recourse.
J
A good manager is at least a buffer. I like the umbrella analogy. At a few points in my career the developers "who worked for me" called me the asbestos umbrella. My job was to keep the heat off them whether it came from management, customers or anywhere else. Also my job was to make sure that my developers had the tools and the training they needed. I got them dual monitors, better chairs, better lighting, any book they ever asked for, tables, whiteboards, etc.
Mangers follow the rules. The company policies are all laid out for them, if you are late, you get points, if you don't produce 37 widgets per hour, you get a warning, etc. Leadership is making decisions in an environment of uncertainty. Ultimately something has to guide your decisions when you don't have enough datapoints to make the call. The support for making decisions in uncertainty is a value system. The best leaders are those that have a value system that matches the values of those being led. Examine your values - do they match with the team?
Finally, Principle Centered Leadership would be my recommendation.
The paper trail is a roll of paper that is printed out of EACH voting machine. By its very nature it is a serial recording of votes - even without timestamps. But, there is aways more that one machine in a polling place and the order people sign the "big book" isn't actually recorded. There would not be any way to know who placed what ballot with the data collected even if the "big book" had a timestamp too.
The whole paper trail issue is mitigated by using a paper ballot that is marked with a pencil in the circles and then counted by a machine. No timestamp on the ballot. The machine produces a summary paper report of the votes placed. The ballots go into a box for recount or manual counting if required. This completely eliminates all of the problems that are currently being faced. The technology is very mature and is in use in Ohio.
I spent some time doing IV&V (Independent Verification and Validation) for Ohio. We tested both Diebold and ES&S touch screen machines. The process was spelled out in detail to cast votes and then verify that both the paper tape and the accumulated digital version on PCMCIA card matched the votes that were input. We selected the votes to cast, so no one at the voting company could know what we were casting. With all that behind me and my experience with the business, the single weakest point of the system was the "toilet paper" roll. This was a constant point of failure with jams, tears, etc. To this day it makes no sense to me to cast an electronic (touch screen) ballot and then produce paper with this sophisticated and failure prone system when the systems already exist to mark a paper ballot, scan the ballot with mark sense technology that works very well and have a simple (low cost) system for voting that has a built in paper trail.
Actually it's not a second amendment moment, it's far more fundamental than that...
"That to secure these rights, Governments are instituted among Men, deriving their just powers from the consent of the governed, That whenever any Form of Government becomes destructive of these ends, it is the Right of the People to alter or abolish it, and to institute new Government, laying its foundation on such principles, and organizing its powers in such form, as to them shall seem most likely to effect their Safety and Happiness."
Preamble of The Declaration of Independence (Nobody talks like that anymore)
Last night when I was using my fav P2P application, there were over 1,000,000 users connected. You all work for somebody or yourself. How's about I set up a system where your product can be freely copied and given to people? (this is an abstraction - if you want to reply "I'm a consultant and you can't do that" don't waste our time). 1,000,000 people handing copies of widgets to each other. I guess the widget company has no right to try to stop them. Just tell the widget company, "You better just give widgets away..."
Slashdot Mirror
And if it was going to do something _chances are_, it would have by now. There, fixed that for ya.
A proton (or other particle) at full speed in the LHC: 7 trillion electron Volts 7.0 * 10 ^9 eV. A 100 watt light bulb burning for one hour: 2.2 * 10 ^24 eV So the light bulb represents 3.1* 10 ^14 (that’s 310,000,000,000,000) times the energy of the particle accelerated in the LHC. 7 trillion eV is really, really small.
...doesn't require nearly as much active maintenance, as in, driving over it with snowploughs when it snows, to be able to drive on it at all.
Having driven all sorts of roads and being from Buffalo, NY, I'm confused by the contention that you don't have to plow or salt/sand a gravel road. I'm sure the folks in Michigan can tell you that a road (no matter what it's made out of) has to be kept clear of ice and snow to be passable in the winter. Maybe you live in a much warmer clime?
34 year old college seniors doing a capstone project of building a radio?
If you actually look at the article, you'll see it was from June 23, 2006.
If the kid can pass the class without being in it, why are we forcing them to take it anyway?
The idea of our education system should be to make the smartest members of society that we can. It doesn't make any sense to have them take that class, they have already mastered it. It makes sense to have them take a more advanced class and keep them learning. The policy of letting them just skip it drives those kids back the the average rather than providing for them to excel.
Obviously "No Child Left Behind" simply means "Lower the standards so everyone passes". The combination of these two policies just produces kids with ever less education.
Perhaps not individually, but as a mass, they are. Surely obsese people don't like being called "fat tub of lard" but in the end they do nothing to improve their condition. ...
Score:5 Insightful? You must be kidding. Clearly this posting is flamebait (and I'm taking it). "In the end they do nothing..." Not one single obese person does anything about being obese? You are telling us that, as a class, obese people simply just go on eating and just want to feel better about themselves? You are clearly making yourself look like an ignorant bigot.
JW
For heaven's sake, this isn't F----d Company .com. This business of publishing stupid emails or hacking on lousy books does not belong on Slashdot - News for Nerds, Stuff that matters.
You don't have to be qualified to have an opinion. True enough. But... What makes a democracy work for the good of the people, is not just having an opinion, but making an informed decision. Back when I was learning about rights, they taught us that rights come with responsibilities. It is our right to vote and the responsibilities are: 1. Vote! and 2. Become educated on the issue(s) and make the best decision you can. If the issue involves some science or math that you don't understand, then it's all just about rhetoric isn't it?
Then there was this guy named Martin Luther. You should check him out.
That's a great idea! Then we would have the "family section" - so business travelers don't have to put up with screaming kids, the "crackberry section" (also the cell phone section) - for those who's connection to the office must be continuous else the entire organization will fail (or who are 17 yr. old girls), the "conducting business" section - for those business travelers who can only complete the big deal on a plane, the "sweethearts section" - this is slashdot, so you wouldn't understand, the section for "those who can have a conversation while both speaking simultaneously and without stopping to take a breath", and finally the "can I just get a little peace and quiet section so I can do a little work, read or sleep?" (where I will be).
Tricks of the Trade:...
When returning books: Find the UPC of the "New" edition, slap it on your old edition and return it. Do it during the highest rush when the checkers in are just trying to get through everyone. I think I would net around $100 a semester buying $5 books and returning them for $30. Screw you book store.
This "Trade" is very old, it is called stealing.
A large source of data that has a correlation does not somehow imply causation. Even if it works under some conditions (or even all conditions). The science happens when the causation is determined and then applied.
Um, The point of the previous posts...
begin sarcasm
"Of course what is printed on the paper identically matches what was recorded electronically by the machine."
end sarcasm
By definition, the electronic voting system abstracts the voter from the vote. The evidence of potential fraud exists already - it's an electronic voting system.
This video shows orange juice in the making.
The video to the burger maker is here: http://news.uns.purdue.edu/UNS/rube/rube.index.html
Enjoy
Well, OK, an autopilot for a helicopter doesn't make much sense because it doesn't spend a lot of time going in one direction very long. Not really designed for that. I have noticed though that things like the Saturn five rocket and the shuttle get straight off the ground and don't have someone at the controls...
By the way, a "jet pack" and a "rocket pack" are two completely different animals. A rocket works by pouring a fuel and an oxidizer into a small space (usually burning) and blasting them out through a nozzle. The only moving parts are in the pumps. There are solid versions too that just don't have pumps but still burn some fuel and squeeze it out of a nozzle. A jet pack, needs a whole lot of rotating parts (compressor and turbine at least) and also barfs out a lot of hot stuff.
I'm thinking that was not written by an EE (or anybody else that commonly speaks about electronics and efficiency.) I would suppose they operate at 1.5 volts and consume some number of amps. Volts alone doesn't say much about their power consumption... (P=IE)
JW
That's just the half of it. Now that you are more productive, you can do 10 of these jobs where you used to do just one. Most people think, "When I'm more productive I'll get my work done in less time." But that's not it. They just get to do more work and everyone has the ability to do more work so there is no net gain for anyone. "Everyone is special is just a way of saying no one is."
Actually I think there are a lot more problems than just downwash. A wing or a helicopter blade produce that downwash from three components of their physical design:Camber, Thickness, and Angle of attack.
If you want to be very efficient (at "low" speed), you should make use of all of these.
For obvious reasons (the blade will be upside down when it is on the bottom and camber going the wrong way is not very efficient in producing lift) the blade cannot have any camber. That eliminates one part of the lift producing capability of the blade. So we have lost some efficiency right there.
There is an analog to the "retreating blade stall" that helicopters suffer from - this is when the speed of the helicopter (a positive value) is added to the speed of the tip of the blade that is going backwards (a negative value). You can see that as the forward speed of the helicopter increases, the speed of the retreating tip goes down and that = less lift (the one on the other side goes faster, so it's busy making more lift - what a pain!) In the cyclogyro, the blade at the bottom would suffer a similar problem. Eventually (and pretty quickly) the bottom blade would not be contributing to lift at all and then will be going backwards through the free stream. A tremendous loss of efficiency although no real problem for roll stability like the helicopter.
Also as the plane moves forward the blades can no longer just point up and down as they go around the circle in the front down and back up parts of the cycle. They will have to be pointed more and more forward as the speed increases. This in turn will mean they have to be returned to a near flat position more quickly as the forward speed increases.
The design will have to have differential control of pitch of the blades in order to turn or a tail rotor. Part of the efficiency claim is no tail rotor, so the pitch will have to be varied for and aft to create more thrust on one side over the other to turn the plane and also on top and bottom of each side independently to roll the plane in order to make a "coordinated turn". (Not required, but makes flying feel a lot better).
I don't think a simple mechanical control system that can't vary the amount of pitch applied anywhere around the cycle would be very effective. At the time this design first came around, there were no sophisticated control systems that could do these things. Seems that now it would be a piece of cake.
(yes, I am a rocket scientist)
JW
I'm a little foggy on the whole free speech thing - really...
Amendment I
Congress shall make no law respecting an establishment of religion, or prohibiting the free exercise thereof; or abridging the freedom of speech, or of the press; or the right of the people peaceably to assemble, and to petition the government for a redress of grievances.
Rights come with responsibilities (least that what I learned in school). The right of free speech comes with the responsibility not to use it to slander or for libelous speech. Is free speech the same as anonymous speech? Isn't that the root issue here? When an article is published in a newspaper, it is attributed to someone. If the paper publishes it and there is no attribution, they are responsible. In the event of libel, there is a path back to the "speaker". With anonymous free speech, that connection is lost. The victim of the libel or slander has no recourse.
J
A good manager is at least a buffer. I like the umbrella analogy. At a few points in my career the developers "who worked for me" called me the asbestos umbrella. My job was to keep the heat off them whether it came from management, customers or anywhere else. Also my job was to make sure that my developers had the tools and the training they needed. I got them dual monitors, better chairs, better lighting, any book they ever asked for, tables, whiteboards, etc.
Mangers follow the rules. The company policies are all laid out for them, if you are late, you get points, if you don't produce 37 widgets per hour, you get a warning, etc. Leadership is making decisions in an environment of uncertainty. Ultimately something has to guide your decisions when you don't have enough datapoints to make the call. The support for making decisions in uncertainty is a value system. The best leaders are those that have a value system that matches the values of those being led. Examine your values - do they match with the team?
Finally, Principle Centered Leadership would be my recommendation.
The paper trail is a roll of paper that is printed out of EACH voting machine. By its very nature it is a serial recording of votes - even without timestamps. But, there is aways more that one machine in a polling place and the order people sign the "big book" isn't actually recorded. There would not be any way to know who placed what ballot with the data collected even if the "big book" had a timestamp too.
The whole paper trail issue is mitigated by using a paper ballot that is marked with a pencil in the circles and then counted by a machine. No timestamp on the ballot. The machine produces a summary paper report of the votes placed. The ballots go into a box for recount or manual counting if required. This completely eliminates all of the problems that are currently being faced. The technology is very mature and is in use in Ohio.
I spent some time doing IV&V (Independent Verification and Validation) for Ohio. We tested both Diebold and ES&S touch screen machines. The process was spelled out in detail to cast votes and then verify that both the paper tape and the accumulated digital version on PCMCIA card matched the votes that were input. We selected the votes to cast, so no one at the voting company could know what we were casting. With all that behind me and my experience with the business, the single weakest point of the system was the "toilet paper" roll. This was a constant point of failure with jams, tears, etc. To this day it makes no sense to me to cast an electronic (touch screen) ballot and then produce paper with this sophisticated and failure prone system when the systems already exist to mark a paper ballot, scan the ballot with mark sense technology that works very well and have a simple (low cost) system for voting that has a built in paper trail.
JW
Actually it's not a second amendment moment, it's far more fundamental than that...
"That to secure these rights, Governments are instituted among Men, deriving their just powers from the consent of the governed, That whenever any Form of Government becomes destructive of these ends, it is the Right of the People to alter or abolish it, and to institute new Government, laying its foundation on such principles, and organizing its powers in such form, as to them shall seem most likely to effect their Safety and Happiness."
Preamble of The Declaration of Independence (Nobody talks like that anymore)
Last night when I was using my fav P2P application, there were over 1,000,000 users connected. You all work for somebody or yourself. How's about I set up a system where your product can be freely copied and given to people? (this is an abstraction - if you want to reply "I'm a consultant and you can't do that" don't waste our time). 1,000,000 people handing copies of widgets to each other. I guess the widget company has no right to try to stop them. Just tell the widget company, "You better just give widgets away..."
JW