Yes, in fact, many policymakers and educators already know this, but lack a practical alternative that can be widely implemented.... unless someone knows more about this...
Our school system was designed to produce obedient factory workers and soldiers.
Yes, I agree. Please see my reply to the "shitty teachers" thread. I'd love to see this discussion to become more solution-oriented than every other ADHD discussion that has ever taken place. Notice my use of "indoctrination."
Rather than turning this into the standard ADHD/education discussion, might we come up with ways that educators can use the early data on brain patterns to better educate those with ADHD? Everyone with ADHD (including myself) knows of the HUGE shortcomings of our education system for ALL students, not just the ones with high IQs and an attention span of 0.2 seconds.
I disagree with the APA's classification of broad-spectrum ADHD as a "disorder." I also disagree with the use of amphetamines as "treatment" for ADHD, and as you may have guessed, I'm speaking from experience.
I hope that early diagnosis of ADHD will not lead to the disclosure of the "disorder" to the children themselves, but rather an individualistic approach of treatment by different classroom experiences, school placement, a better diet, and giving them more time for physical activity in school, rather than sitting them at a desk for indoctrination for 7 hours a day.
My opinion is as follows: the prospect of firing "bad" teachers should not even be on the table. The educational problems of the U.S., namely our lacking in math/science compared to some eastern nations (India, China, etc.), and the fear for the United States' place as a technological leader in the world, is partly self-correcting, partly a governmental issue, and partly a non-issue. Now I'll quickly explain my nonsensical, vague statements.
It's self-correcting because the disinterest of many young people today in their education is a symptom of the media glamorizing the quick buck, and parents' naivety in how to deal with such a phenomenon. It's my belief that the next generation will see the faults in their thinking. Parents will cease to blame teachers and administration for their children's shortcomings. In the end, the youngsters are the ones doing the learning - teachers only have a few hours a day to indoctrinate them with what they can.
It's a governmental issue in that many of the problems surrounding education are interrelated with larger systemic societal and economic problems. The general state of our economy and the relative success of the workforce creates the educational expectations and demand. In this respect, it is the job of the government to promote social programs that prevent the educational breakdown in lower income areas of the nation. The important thing is that the classrooms and books are in place so the students can learn if they choose.
It's a non-issue because, in the end, people advocate for themselves. If a teacher needs to be fired, it will happen.
Lastly, I feel it necessary to give my own profession and education background: educated in public schools through middle school (NYS), went to private Jesuit high school, private engineering school. Currently an EE.
Excuse me, but how the fuck did a pop-news story about some abusive ex-motorcyclist who attributed the regaining of nerve function in his lower limbs to a spider bite make it to the main page of Slashdot? I heard that Jesus' face was on a cinnamon bun again recently, and that didn't make it on here...
The publicly perceived "intolerance" demonstrated by Dawkins is simply a misinterpretation. From Dawkins' point of view, the belief in a god is analogous to a stubborn belief that the world is flat. Continuing the analogy, which, in my opinion, is VERY representative, why would any *SCHOOL* condemn someone for speaking on behalf of their very logical, objective arguments against a flat world? Their reason for doing so is that they encourage "free thinking".
The hypocrisy is quite literally boggling my mind, but the framers of such a bill would most likely fail to accept such a logical idea as hypocrisy.
If anyone rectifies the voltage heading TO an LED light bulb, they should have their engineering degree taken away.
Protip: LEDs are diodes. Rectifiers are diodes. Just stick a current regulating resistor in series, stick a voltage smoothing capacitor in parallel, and use a regular dimmer to limit the current to whatever you need. Using a complicated solution to the problem would be criminal.
I'm not sure it's QUITE that simple. I've only thought about your comment for about 60 seconds, but the idea is to have the current going through the LED to be somewhat smooth... using the LED as the diode in the rectifying circuit would not accomplish this, assuming that's what you're talking about. Plus LEDs have somewhat different characteristics than those diodes used in rectifier circuits (breakdown voltages, etc.), although I don't know if that would make a difference. So, yeah, you'd want to rectify it before it went through the LED array.
Please don't take my electrical engineering degree away. You could, however, design tons of sweet, rapidly-blinking bridge rectifiers.
So what is the energy consumed during production for one of these LED lights? If we're just using more energy per unit during manufacture, then what is the energy payoff balanced vs. the number of hours these will remain in service?
Just by quick examination, it's an enormous energy payoff - think about how incandescent bulbs are produced, or even CFLs, then imagine a boatload of Si/Ga wafers being produced (uses a bit of energy), and then 150,000 LEDs coming from each wafer. Then each low-wattage LED running for about 70,000 hours.... each LED bulb that replaces 70 incandescent bulbs, or 7 CFLs (approximately). LEDs use far less energy than either of those. It's not like manufacturers love using tons of energy to produce a silicon wafer.... they make the process as quick and efficient as possible - the cost of production ($15) is directly proportional to how much energy is consumed in the process.
Let's do a quick estimate, shall we? $15 per wafer, with a wafer yielding 150000 LEDs, 25 of which are needed for an array for a bulb = $0.0025 per bulb (just leds). I'd say the energy savings will be on the plus side after manufacturing.
I'm not sure everyone is completely aware of how big an advance this is. I'm going to buy Philips' stock as soon as I can. I'm sorry people have been screwed by some misleading marketing, but LEDs are the future of lighting... and the big green movement.
And yes, they're really easy to dim, either by converting to DC and modulating current, or by using a PWM - I'm not sure which is more efficient/cheaper.
I can't wait for CFLs to go away. Eventually you'll see commercially available, color-selectable LED bulbs.
Anyone know if the process was patented/sold to a specific company? Pretty obvious why...
They allude to the ability to _shuttle_ persons into space later down the road using the craft, and specifically state that they aim to bring the cost of such an endeavor to the sub-$100k range.
Can anyone find a cost per kg (or lb) of cargo estimate on that website? Not trying to detract from its value, just wanted it for comparative purposes.
Religious fanatics using technology created by western consumer whores to organize attacks against western consumer whores in the name of religious fanaticism. I guess in their culture, the ends _do_ justify the means.
In any case, I'm sure if they use it enough, they'll become so distracted by the addicting nature of checking your wall, and leaving clever bumper stickers for friends that they'll forget all about their religious convictions.
Album title: Oval Office Party - Chiefs and Squaws
on
The First E-President
·
· Score: 1
Obama gets impeached because he mistakenly shared that album with "All" - himself and his chiefs of staff hitting the "Presidential Six-footer" with Biden in the background giving the shocker sign, his arms around two busty assistants.
It would be arguably funnier if that happened to McCain... We would all be walking around the next day, dazed, saying "Yeah, like, I guess he was kinda cool..."
While it's probably not audibly noticeable, the ferrite "filter" will attenuate some signals in the speaker cable, most notably, higher-frequency sounds, the amount depending on the type of magnet. An audiophile with a need to speak on their TDMA-based phone next to their expensive audio setup would probably prefer a passive filter on the input line to the speakers, and an amplifier right before the contacts to the speaker magnets to counteract the attenuated high frequency sounds from the original source.
For those of us not 100% familiar with the technical and legal aspects of how Apple is able to allow the installation of its OS on only Apple machines, could someone educate me? I also want to know the measures Apple can/will take from a software standpoint to prevent this in the future. What's keeping them from modifying OSX to search for "banned" connected components and prevent booting?
Thank God there are different types of MDs! Like an emergency physician, and a pathologist. One knows that the lymph node HAS swollen by looking at the patient. The other studies the cells using "lab skills" to determine the WHY. I wonder how things would work if ER docs started doing their own lab work.:-P
In relating this back to the original topic of the article, how many premed students know exactly what facet of medicine they will end up in, and how relevant OChem will be to them? Maybe ones' success in OChem would help them decide.
Slashdot Mirror
Yes, in fact, many policymakers and educators already know this, but lack a practical alternative that can be widely implemented.... unless someone knows more about this...
Our school system was designed to produce obedient factory workers and soldiers.
Yes, I agree. Please see my reply to the "shitty teachers" thread. I'd love to see this discussion to become more solution-oriented than every other ADHD discussion that has ever taken place. Notice my use of "indoctrination."
Rather than turning this into the standard ADHD/education discussion, might we come up with ways that educators can use the early data on brain patterns to better educate those with ADHD? Everyone with ADHD (including myself) knows of the HUGE shortcomings of our education system for ALL students, not just the ones with high IQs and an attention span of 0.2 seconds.
I disagree with the APA's classification of broad-spectrum ADHD as a "disorder." I also disagree with the use of amphetamines as "treatment" for ADHD, and as you may have guessed, I'm speaking from experience.
I hope that early diagnosis of ADHD will not lead to the disclosure of the "disorder" to the children themselves, but rather an individualistic approach of treatment by different classroom experiences, school placement, a better diet, and giving them more time for physical activity in school, rather than sitting them at a desk for indoctrination for 7 hours a day.
My opinion is as follows: the prospect of firing "bad" teachers should not even be on the table. The educational problems of the U.S., namely our lacking in math/science compared to some eastern nations (India, China, etc.), and the fear for the United States' place as a technological leader in the world, is partly self-correcting, partly a governmental issue, and partly a non-issue. Now I'll quickly explain my nonsensical, vague statements.
It's self-correcting because the disinterest of many young people today in their education is a symptom of the media glamorizing the quick buck, and parents' naivety in how to deal with such a phenomenon. It's my belief that the next generation will see the faults in their thinking. Parents will cease to blame teachers and administration for their children's shortcomings. In the end, the youngsters are the ones doing the learning - teachers only have a few hours a day to indoctrinate them with what they can.
It's a governmental issue in that many of the problems surrounding education are interrelated with larger systemic societal and economic problems. The general state of our economy and the relative success of the workforce creates the educational expectations and demand. In this respect, it is the job of the government to promote social programs that prevent the educational breakdown in lower income areas of the nation. The important thing is that the classrooms and books are in place so the students can learn if they choose.
It's a non-issue because, in the end, people advocate for themselves. If a teacher needs to be fired, it will happen.
Lastly, I feel it necessary to give my own profession and education background: educated in public schools through middle school (NYS), went to private Jesuit high school, private engineering school. Currently an EE.
Excuse me, but how the fuck did a pop-news story about some abusive ex-motorcyclist who attributed the regaining of nerve function in his lower limbs to a spider bite make it to the main page of Slashdot? I heard that Jesus' face was on a cinnamon bun again recently, and that didn't make it on here...
Anyone think this might be the debut of the 3-dimensional GUI that Apple patented last year?
The publicly perceived "intolerance" demonstrated by Dawkins is simply a misinterpretation. From Dawkins' point of view, the belief in a god is analogous to a stubborn belief that the world is flat. Continuing the analogy, which, in my opinion, is VERY representative, why would any *SCHOOL* condemn someone for speaking on behalf of their very logical, objective arguments against a flat world? Their reason for doing so is that they encourage "free thinking".
The hypocrisy is quite literally boggling my mind, but the framers of such a bill would most likely fail to accept such a logical idea as hypocrisy.
If anyone rectifies the voltage heading TO an LED light bulb, they should have their engineering degree taken away.
Protip: LEDs are diodes. Rectifiers are diodes. Just stick a current regulating resistor in series, stick a voltage smoothing capacitor in parallel, and use a regular dimmer to limit the current to whatever you need. Using a complicated solution to the problem would be criminal.
I'm not sure it's QUITE that simple. I've only thought about your comment for about 60 seconds, but the idea is to have the current going through the LED to be somewhat smooth... using the LED as the diode in the rectifying circuit would not accomplish this, assuming that's what you're talking about. Plus LEDs have somewhat different characteristics than those diodes used in rectifier circuits (breakdown voltages, etc.), although I don't know if that would make a difference. So, yeah, you'd want to rectify it before it went through the LED array.
Please don't take my electrical engineering degree away. You could, however, design tons of sweet, rapidly-blinking bridge rectifiers.
So what is the energy consumed during production for one of these LED lights?
If we're just using more energy per unit during manufacture, then what is the energy payoff balanced vs. the number of hours these will remain in service?
Just by quick examination, it's an enormous energy payoff - think about how incandescent bulbs are produced, or even CFLs, then imagine a boatload of Si/Ga wafers being produced (uses a bit of energy), and then 150,000 LEDs coming from each wafer. Then each low-wattage LED running for about 70,000 hours.... each LED bulb that replaces 70 incandescent bulbs, or 7 CFLs (approximately). LEDs use far less energy than either of those. It's not like manufacturers love using tons of energy to produce a silicon wafer.... they make the process as quick and efficient as possible - the cost of production ($15) is directly proportional to how much energy is consumed in the process.
Let's do a quick estimate, shall we? $15 per wafer, with a wafer yielding 150000 LEDs, 25 of which are needed for an array for a bulb = $0.0025 per bulb (just leds). I'd say the energy savings will be on the plus side after manufacturing.
I'm not sure everyone is completely aware of how big an advance this is. I'm going to buy Philips' stock as soon as I can. I'm sorry people have been screwed by some misleading marketing, but LEDs are the future of lighting... and the big green movement.
And yes, they're really easy to dim, either by converting to DC and modulating current, or by using a PWM - I'm not sure which is more efficient/cheaper.
I can't wait for CFLs to go away. Eventually you'll see commercially available, color-selectable LED bulbs.
Anyone know if the process was patented/sold to a specific company? Pretty obvious why...
They allude to the ability to _shuttle_ persons into space later down the road using the craft, and specifically state that they aim to bring the cost of such an endeavor to the sub-$100k range.
Can anyone find a cost per kg (or lb) of cargo estimate on that website? Not trying to detract from its value, just wanted it for comparative purposes.
"Good night, and good luck."
Religious fanatics using technology created by western consumer whores to organize attacks against western consumer whores in the name of religious fanaticism. I guess in their culture, the ends _do_ justify the means. In any case, I'm sure if they use it enough, they'll become so distracted by the addicting nature of checking your wall, and leaving clever bumper stickers for friends that they'll forget all about their religious convictions.
Obama gets impeached because he mistakenly shared that album with "All" - himself and his chiefs of staff hitting the "Presidential Six-footer" with Biden in the background giving the shocker sign, his arms around two busty assistants. It would be arguably funnier if that happened to McCain... We would all be walking around the next day, dazed, saying "Yeah, like, I guess he was kinda cool..."
While it's probably not audibly noticeable, the ferrite "filter" will attenuate some signals in the speaker cable, most notably, higher-frequency sounds, the amount depending on the type of magnet. An audiophile with a need to speak on their TDMA-based phone next to their expensive audio setup would probably prefer a passive filter on the input line to the speakers, and an amplifier right before the contacts to the speaker magnets to counteract the attenuated high frequency sounds from the original source.
For those of us not 100% familiar with the technical and legal aspects of how Apple is able to allow the installation of its OS on only Apple machines, could someone educate me? I also want to know the measures Apple can/will take from a software standpoint to prevent this in the future. What's keeping them from modifying OSX to search for "banned" connected components and prevent booting?
Thank God there are different types of MDs! Like an emergency physician, and a pathologist. One knows that the lymph node HAS swollen by looking at the patient. The other studies the cells using "lab skills" to determine the WHY. I wonder how things would work if ER docs started doing their own lab work. :-P
In relating this back to the original topic of the article, how many premed students know exactly what facet of medicine they will end up in, and how relevant OChem will be to them? Maybe ones' success in OChem would help them decide.