Before you spout off about the ET insulation foam having been reformulated without CFCs, try reading the CAIB report (volume 1, Page 51), which specifically states that the portion of the foam that broke loose was the OLD CFC-based formulation.
The story about the reformulated foam causing the Columbia accident is largely the doing of Rush Limbaugh, who seized on a lie from one of his typically ill-informed listeners, and kept repeating it until it became accepted as fact by everyone on the right.
If you intend to reuse the drive, you can't use a bulk eraser (except for the ancient stepper motor MFM drives), because doing so will erase the servo information which typically occupies one platter surface. Once this info is wiped out, the drive is unable to operate unless the servo tracks are re-written using specialized equipment, typically only available to drive manufacturers.
What is needed here is a simple voltage regulator to knock 28VDC down to 5VDC. An old-school 7805 3 terminal regulator should be able to take care of things.
The term "DC-DC Converter" implies an intermediate DC to AC conversion, then rectifying the AC back to DC at a different voltage level.
Before you spout off about the ET insulation foam having been reformulated without CFCs, try reading the CAIB report (volume 1, Page 51), which specifically states that the portion of the foam that broke loose was the OLD CFC-based formulation.
The story about the reformulated foam causing the Columbia accident is largely the doing of Rush Limbaugh, who seized on a lie from one of his typically ill-informed listeners, and kept repeating it until it became accepted as fact by everyone on the right.
Back in the 80s, I had a couple part-time jobs at repair shops fixing VCRs, and kids jamming stuff into the front-load slots was a CONSTANT source of work. Matchbox cars, small stuffed animals, PB&J sandwiches, you name it...
Top-loaders were more resistant to the problem, and generally cheaper/easier to fix if the kid did manage to get something in there.
You're saying that pot laws drive illegal immegration purposefully? To what end?
Let's see...
Providing an easily exploitable pool of cheap laborers for construction and agriculture interests?
Providing an excuse for further militarization of law enforcement?
Illegal immigrants might make a good scapegoat to deflect blame for rising unemployment and falling wages away from the rich fuckers who are really responsible?
An atmospheric vent is not the same as a burst disc. The fuel tank is vented to the atmosphere to prevent rupturing the tank due to internal vacuum as the contents get pumped out to the engines during flight, or internal pressure changes as the plane changes altitude.
Yes, under normal circumstances the tank would never be able to be pressurized above ambient because of the vents. But a burst disc as a backup safety device would have prevented such extensive damage to the tank and wing superstructure in the somewhat foreseeable event that the vents became obstructed for some reason, whether the reason is an idiot mechanic who left test plugs in, or something like icing over the external vent ports during flight. Much cheaper to replace a blown burst disc than to write off the whole airframe from the structural damage.
Perhaps something like an overpressure burst disc sized to fail before the tank walls do, leading into a pipe that safely vents the tank contents outside the airframe?
. If, for instance, somebody is killed because of their race, and government does nothing...
And where did I suggest that the government should do "nothing" in a case like this? A first degree murder charge seems completely appropriate in your scenario.
I might buy "freedom broadcasting" as a euphemism for "pirate radio" (operating a broadcast station without a license). But what I was referring to is a poorly designed/operated CB transmitter that puts signals not only onto the CB frequencies, but also interferes with conventional AM/FM/TV/etc. reception.
It's legal to hate things, or hate people, or hate groups of people, and to voice those opinions. What's not legal is committing a crime based on those opinions.
But if you are COMMITTING A CRIME, you should be convicted and sentenced based on the penalties attached to said crime.
Tacking on additional penalties because of the perpetrator's BELIEFS is unacceptable. So-called "Hate Crimes" or "Bias Crimes" need to be called what they are--THOUGHT CRIMES.
Using obscene, indecent, or vulgar language over a CB radio IS a violation of FCC regulations. Not that they actually enforce any of the Part 95 rules until they are practuically FORCED to, like some redneck with 5000 watt linear amp wiping out half the broadcast band for a 20 mile radius.
Actually, it isn't the psychoactive THC that gets absorbed into the fat, but non-psychoactive metabolites like 11-nor-9-Carboxy-THC.
They can hang around in the body for a long time (depending on frequency of use), but they will NOT cause any impairment. The prohibitionists depend on the confusion between the active drug and its inactive metabolites to keep perpetuating the myth that people stay stoned (or at least "impaired") for months after smoking a joint.
Nuclear plants and similar heavy industrial equipment are about the only products of the "real" Westinghouse that still exist. They had nothing to do with your POS TV set.
Like so many other venerable US brand names, The Westinghouse name and logo has been licensed for use on El-cheapo imported consumer electronics built by various "One Hung Low" outfits.
Our restrictions are worse, actually. Down here, EVERY pseudoephedrine product is behind the counter, even the products with APAP or other active ingredients that would be nearly impossible to make meth with.
Actually, "fuze" is a proper spelling--assuming you are talking about a timer/impact sensor/radio type device that sets off a bomb or artillery shell. The string or cord that you light with a match to set off a simpler type of explosive or firework is spelled with an "s", however.
When referring to an electrical overcurrent device, it is also spelled with an "s".
The propellant involved here (the stuff used by most high power hobbyists, as well as the boosters on the space shuttle) is APCP, or Ammonium Perchlorate Composite Propellant. As a result of a court case a couple years ago, it was REMOVED from the BATFE list of explosives. It was reported here on Slashdot at the time.
More specifically, I would love to see Kucinich mount a primary challenge against Obama from within his own party, or Sanders accept the draft petition and run as an Independent in the general election.
If all you want is a blinking LED with minimum power consumption or external parts count, the simplest solution was the LM3909, from National Semiconductor. The only external component needed for the simplest applications was a single capacitor (value sets the flash rate), and the thing could flash a single red LED for a year or more from a single AA battery.
Unfortunately, the powers that be at National decided to discontinue it several years ago.
Slashdot Mirror
Before you spout off about the ET insulation foam having been reformulated without CFCs, try reading the CAIB report (volume 1, Page 51), which specifically states that the portion of the foam that broke loose was the OLD CFC-based formulation.
http://caib.nasa.gov/news/report/pdf/vol1/full/caib_report_volume1.pdf
The story about the reformulated foam causing the Columbia accident is largely the doing of Rush Limbaugh, who seized on a lie from one of his typically ill-informed listeners, and kept repeating it until it became accepted as fact by everyone on the right.
http://mediamatters.org/research/200508090007
Piezoelectric rocks?
Yep.
http://www.machinadynamica.com/machina31.htm
http://www.machinadynamica.com/machina17.htm
http://en.wikipedia.org/wiki/Servowriter
http://www.me.berkeley.edu/~horowitz/Publications_files/All_papers_numbered/186c_Nie_ACC10_TutorialonSSTW.pdf
If you intend to reuse the drive, you can't use a bulk eraser (except for the ancient stepper motor MFM drives), because doing so will erase the servo information which typically occupies one platter surface. Once this info is wiped out, the drive is unable to operate unless the servo tracks are re-written using specialized equipment, typically only available to drive manufacturers.
What is needed here is a simple voltage regulator to knock 28VDC down to 5VDC. An old-school 7805 3 terminal regulator should be able to take care of things.
The term "DC-DC Converter" implies an intermediate DC to AC conversion, then rectifying the AC back to DC at a different voltage level.
Before you spout off about the ET insulation foam having been reformulated without CFCs, try reading the CAIB report (volume 1, Page 51), which specifically states that the portion of the foam that broke loose was the OLD CFC-based formulation.
http://caib.nasa.gov/news/report/pdf/vol1/full/caib_report_volume1.pdf
The story about the reformulated foam causing the Columbia accident is largely the doing of Rush Limbaugh, who seized on a lie from one of his typically ill-informed listeners, and kept repeating it until it became accepted as fact by everyone on the right.
http://mediamatters.org/research/200508090007
Back in the 80s, I had a couple part-time jobs at repair shops fixing VCRs, and kids jamming stuff into the front-load slots was a CONSTANT source of work. Matchbox cars, small stuffed animals, PB&J sandwiches, you name it...
Top-loaders were more resistant to the problem, and generally cheaper/easier to fix if the kid did manage to get something in there.
You're saying that pot laws drive illegal immegration purposefully? To what end?
Let's see...
Providing an easily exploitable pool of cheap laborers for construction and agriculture interests?
Providing an excuse for further militarization of law enforcement?
Illegal immigrants might make a good scapegoat to deflect blame for rising unemployment and falling wages away from the rich fuckers who are really responsible?
An atmospheric vent is not the same as a burst disc. The fuel tank is vented to the atmosphere to prevent rupturing the tank due to internal vacuum as the contents get pumped out to the engines during flight, or internal pressure changes as the plane changes altitude.
Yes, under normal circumstances the tank would never be able to be pressurized above ambient because of the vents. But a burst disc as a backup safety device would have prevented such extensive damage to the tank and wing superstructure in the somewhat foreseeable event that the vents became obstructed for some reason, whether the reason is an idiot mechanic who left test plugs in, or something like icing over the external vent ports during flight. Much cheaper to replace a blown burst disc than to write off the whole airframe from the structural damage.
Perhaps something like an overpressure burst disc sized to fail before the tank walls do, leading into a pipe that safely vents the tank contents outside the airframe?
. If, for instance, somebody is killed because of their race, and government does nothing...
And where did I suggest that the government should do "nothing" in a case like this? A first degree murder charge seems completely appropriate in your scenario.
I might buy "freedom broadcasting" as a euphemism for "pirate radio" (operating a broadcast station without a license). But what I was referring to is a poorly designed/operated CB transmitter that puts signals not only onto the CB frequencies, but also interferes with conventional AM/FM/TV/etc. reception.
It's legal to hate things, or hate people, or hate groups of people, and to voice those opinions. What's not legal is committing a crime based on those opinions.
But if you are COMMITTING A CRIME, you should be convicted and sentenced based on the penalties attached to said crime.
Tacking on additional penalties because of the perpetrator's BELIEFS is unacceptable. So-called "Hate Crimes" or "Bias Crimes" need to be called what they are--THOUGHT CRIMES.
Using obscene, indecent, or vulgar language over a CB radio IS a violation of FCC regulations. Not that they actually enforce any of the Part 95 rules until they are practuically FORCED to, like some redneck with 5000 watt linear amp wiping out half the broadcast band for a 20 mile radius.
The fact that the data is not transmitted with visible light but with higher frequencies is irrelevant.
What is this, WiFi over Gamma Rays or something?
Last time I checked, radio frequencies were well BELOW the visible spectrum...
Actually, it isn't the psychoactive THC that gets absorbed into the fat, but non-psychoactive metabolites like 11-nor-9-Carboxy-THC.
They can hang around in the body for a long time (depending on frequency of use), but they will NOT cause any impairment. The prohibitionists depend on the confusion between the active drug and its inactive metabolites to keep perpetuating the myth that people stay stoned (or at least "impaired") for months after smoking a joint.
Nuclear plants and similar heavy industrial equipment are about the only products of the "real" Westinghouse that still exist. They had nothing to do with your POS TV set.
Like so many other venerable US brand names, The Westinghouse name and logo has been licensed for use on El-cheapo imported consumer electronics built by various "One Hung Low" outfits.
Not to mention a can of Spam....
Our restrictions are worse, actually. Down here, EVERY pseudoephedrine product is behind the counter, even the products with APAP or other active ingredients that would be nearly impossible to make meth with.
Actually, "fuze" is a proper spelling--assuming you are talking about a timer/impact sensor/radio type device that sets off a bomb or artillery shell. The string or cord that you light with a match to set off a simpler type of explosive or firework is spelled with an "s", however.
When referring to an electrical overcurrent device, it is also spelled with an "s".
The propellant involved here (the stuff used by most high power hobbyists, as well as the boosters on the space shuttle) is APCP, or Ammonium Perchlorate Composite Propellant. As a result of a court case a couple years ago, it was REMOVED from the BATFE list of explosives. It was reported here on Slashdot at the time.
http://science.slashdot.org/story/09/03/16/2139211/rocket-hobbyists-prevail-over-feds-in-court-case
Rocket hobbyists no longer need to obtain federal explosives permits to use, manufacture, purchase, or transport APCP.
More specifically, I would love to see Kucinich mount a primary challenge against Obama from within his own party, or Sanders accept the draft petition and run as an Independent in the general election.
http://www.sandersforpresident.org/
Yes, melted due to friction with the surrounding air during ascent.
If all you want is a blinking LED with minimum power consumption or external parts count, the simplest solution was the LM3909, from National Semiconductor. The only external component needed for the simplest applications was a single capacitor (value sets the flash rate), and the thing could flash a single red LED for a year or more from a single AA battery.
Unfortunately, the powers that be at National decided to discontinue it several years ago.
But if we got rid of the TSA,, where would our high school drop-outs work and wield as much power over the higher educated masses?
How about their local police departments?