This is a potential replacement for the fuel used in the solid rocket boosters, not the main engines.
While the main engine burn LH2 and LOX, emitting nothing but steam, the SRBs burn a rubbery mix of ammonium perchlorate, powdered aluminum and a polymer binder. They emit a pretty nasty exhaust stream, containing hydrogen chloride and aluminum oxide, among many other compounds.
And the hold-down bolts are designed so that the thrust from the SRB would cause them to stretch and break loose, even if the pyrotechnic fasteners never fired.
To answer the original question, a launch where only one SRB fired would be an unsurvivable disaster. The asymmetric thrust would cause the shuttle to cartwheel into either the launch tower or the surrounding area.
I didn't take "Bowling for Columbine" as anti-gun, really.
Moore made a point of showing how Canada has just as strong a gun culture (and just as many guns per capita, IIRC) as the USA. The difference was the level of gun VIOLENCE. He went on to explore some of the possible reasons for this disparity, including our history of racial tension and a media/government collusion to keep the populace scared of whatever the latest "enemy of the week" is, be it street crime, drugs, immigrants, terrorists, etc. The unlocked doors and friendly communities shown in Canada contrasted quite strongly with the USA, as well.
The point seemed to be that we have become a nation of paranoid, xenophobic sheep facing economic uncertainty, and who just HAPPEN to also be armed to the teeth. So we lash out at ourselves in frustration, frequently using firearms.
Probably not much of a hazard with MOST receptacles, where the box was anchored to a wall stud during initial construction. But when an electrician installs additional receptacles AFTER the sheetrock is in place, most of the time they will use an "old work" or "cut-in" box, which is essentially clamped onto the sheetrock itself. Sheetrock has very little structural value.
The shelf on the top could act like a really nice lever to bust the box loose from the wall if some idiot puts too much weight on it.
If this kid is planning to sell these, I hope he has some serious product liability coverage when the inevitable accident occurs.
You certainly should be able to draw 200A from any 200A residential electrical service that is in good operating condition.
However, if all the homes on your block try to do so simultaneously, you will hear a loud bang as the fuse on the primary side of the distribution transformer opens, and you and your neighbors will be sitting in the dark waiting for the power company to come out to change it.
Residential services are not fused individually, except by the main breaker in each service panel. The final overcurrent device before the power hits your home is on the high voltage primary side of the step-down transformer, which typically feeds anywhere from several homes to an entire block.
Indian tribes own 3% of petroleum and gas reserves in the USA and 15% of coal.
Sure. Until the day comes that Uncle Sam or one of his corporate owners wants them. Then their "ownership" will be respected about as well as all the other treaties have been over the last few hundred years....
I think once people figure out how to do that (and start posting "how-to" videos on the 'net), the gov't will start treating anti-cell systems like emissions control equipment, making it illegal to remove/disable/modify, and possibly subject to periodic state inspection.
In the days of the Apollo program someone doing a "sneak-circuit" analysis of the Saturn V launch system found a series of ground faults that, taken together, could have resulted in a Saturn V launch from a janitor accidentally bumping the "go" button while cleaning. This would have even by-passed the launch-key protection.
(Citation Needed)
I find this one difficult to swallow. A Saturn V (or any other "real" rocket) isn't like an Estes model rocket, where all that is needed to launch is to send power to a bit of nichrome wire at the pad to light the propellant.
The Saturn V (and the Shuttle) actually launch THEMSELVES, via their onboard computers. Before the final "launch" commit point which fires the explosive bolts attaching the rocket to the pad (and lights the SRBs in the case of the shuttle), the computer checks (among hundreds of other parameters) that the liquid fuel engines are running properly, that sufficient thrust is being generated, that the guidance system is operating properly, etc., in ADDITION to having a "GO" signal from ground control.
Nobody in the firing room is tasked with "pressing the button" at T=0 to launch the rocket. At some point toward the end of the countdown, control of the launch sequence is handed over to the onboard computer, and all the ground can do is to STOP the launch sequence.
Until the 'owners' of a corporation can be imprisoned for crimes they are not equal to 'citizens' and should not get the same level of rights.
The "owners" of a publicly traded corporation would be the shareholders, no?
While such a system of accountability might be interesting, I haven't heard even the farthest fringes of the left call for arresting and imprisoning everyone who holds stock in BP through their 401(k).
OTOH, ocking up senior management and the boards of directors would be a little easier to accomplish, and likely to gather a bit more public support.
If you were smoking blunts, what you were experiencing was most likely NICOTINE withdrawl. You do realize that cigar wrappers are made of tobacco, right?
Severe withdrawl symptoms from cannabis itself are pretty much unknown. Tobacco, OTOH, is said by many to be as hard or harder to kick than heroin.
That "death and taxes" poster is great! May have to order one.
A simpler representation of the true size of the "defense" budget is prepared every year by the War Resister's League. Their 2009 version is online at:
Once upon a time there was NYC's "Radio Row" near Cortland and Canal streets, but that started dying out when the WTC was built and the whole area got turned into yuppie hell. Several blocks of stores selling all manner of electronics, parts, military surplus, tubes, etc.
But if you don't have a network connection (and the machine is physically secured to protect the USB ports and removable media drives), then you don't NEED anti-virus software. Without a means for a virus to get onto the machine, it should be perfectly safe.
Having a live network connection only for the purpose of updating an unnecessary AV package provides a route of infection in itself. Unless the machine needs a network connection for another reason, then it shouldn't be connected to a network.
I maintain several Windows (and DOS) boxes which are used for stand-alone machine controls, and none of them have ever had a problem with virus infections (despite complete lack of AV software), because there is no way for a virus to get onto them. The front panel USB and floppy/CD ports are disabled (physically unplugged inside the machines), and the rear panel USB ports are filled with epoxy glue. If I need to update software, I just open the box, and plug the cables in as needed.
If you make every pylon different, you lose the ability to mass-produce the component parts. When the time comes to erect them, the assembly crews are dealing with different parts and different drawings each time, so there is no "learning from experience". And each separate design will need to be tested individually for wind resistance, structural integrity, ice loading, etc.
Yeah, they look cool, but the downsides are numerous, and most likely a project-killer.
Slashdot Mirror
This is a potential replacement for the fuel used in the solid rocket boosters, not the main engines.
While the main engine burn LH2 and LOX, emitting nothing but steam, the SRBs burn a rubbery mix of ammonium perchlorate, powdered aluminum and a polymer binder. They emit a pretty nasty exhaust stream, containing hydrogen chloride and aluminum oxide, among many other compounds.
And the hold-down bolts are designed so that the thrust from the SRB would cause them to stretch and break loose, even if the pyrotechnic fasteners never fired.
To answer the original question, a launch where only one SRB fired would be an unsurvivable disaster. The asymmetric thrust would cause the shuttle to cartwheel into either the launch tower or the surrounding area.
I didn't take "Bowling for Columbine" as anti-gun, really.
Moore made a point of showing how Canada has just as strong a gun culture (and just as many guns per capita, IIRC) as the USA. The difference was the level of gun VIOLENCE. He went on to explore some of the possible reasons for this disparity, including our history of racial tension and a media/government collusion to keep the populace scared of whatever the latest "enemy of the week" is, be it street crime, drugs, immigrants, terrorists, etc. The unlocked doors and friendly communities shown in Canada contrasted quite strongly with the USA, as well.
The point seemed to be that we have become a nation of paranoid, xenophobic sheep facing economic uncertainty, and who just HAPPEN to also be armed to the teeth. So we lash out at ourselves in frustration, frequently using firearms.
Explosives would still be able to detonate in an inert atmosphere, because they contain their own oxidizer, rather than relying on atmospheric oxygen.
Jamie wants BIG BOOM!
Probably not much of a hazard with MOST receptacles, where the box was anchored to a wall stud during initial construction. But when an electrician installs additional receptacles AFTER the sheetrock is in place, most of the time they will use an "old work" or "cut-in" box, which is essentially clamped onto the sheetrock itself. Sheetrock has very little structural value.
The shelf on the top could act like a really nice lever to bust the box loose from the wall if some idiot puts too much weight on it.
If this kid is planning to sell these, I hope he has some serious product liability coverage when the inevitable accident occurs.
You certainly should be able to draw 200A from any 200A residential electrical service that is in good operating condition.
However, if all the homes on your block try to do so simultaneously, you will hear a loud bang as the fuse on the primary side of the distribution transformer opens, and you and your neighbors will be sitting in the dark waiting for the power company to come out to change it.
Residential services are not fused individually, except by the main breaker in each service panel. The final overcurrent device before the power hits your home is on the high voltage primary side of the step-down transformer, which typically feeds anywhere from several homes to an entire block.
"Have you ever noticed that you never get laid on Thanksgiving? I think it's because all the coats are on the bed."
Indian tribes own 3% of petroleum and gas reserves in the USA and 15% of coal.
Sure. Until the day comes that Uncle Sam or one of his corporate owners wants them. Then their "ownership" will be respected about as well as all the other treaties have been over the last few hundred years....
I think once people figure out how to do that (and start posting "how-to" videos on the 'net), the gov't will start treating anti-cell systems like emissions control equipment, making it illegal to remove/disable/modify, and possibly subject to periodic state inspection.
In the days of the Apollo program someone doing a "sneak-circuit" analysis of the Saturn V launch system found a series of ground faults that, taken together, could have resulted in a Saturn V launch from a janitor accidentally bumping the "go" button while cleaning. This would have even by-passed the launch-key protection.
(Citation Needed)
I find this one difficult to swallow. A Saturn V (or any other "real" rocket) isn't like an Estes model rocket, where all that is needed to launch is to send power to a bit of nichrome wire at the pad to light the propellant.
The Saturn V (and the Shuttle) actually launch THEMSELVES, via their onboard computers. Before the final "launch" commit point which fires the explosive bolts attaching the rocket to the pad (and lights the SRBs in the case of the shuttle), the computer checks (among hundreds of other parameters) that the liquid fuel engines are running properly, that sufficient thrust is being generated, that the guidance system is operating properly, etc., in ADDITION to having a "GO" signal from ground control.
Nobody in the firing room is tasked with "pressing the button" at T=0 to launch the rocket. At some point toward the end of the countdown, control of the launch sequence is handed over to the onboard computer, and all the ground can do is to STOP the launch sequence.
Packed with Mentos, Diet Coke, salami, and thermite?
Until the 'owners' of a corporation can be imprisoned for crimes they are not equal to 'citizens' and should not get the same level of rights.
The "owners" of a publicly traded corporation would be the shareholders, no?
While such a system of accountability might be interesting, I haven't heard even the farthest fringes of the left call for arresting and imprisoning everyone who holds stock in BP through their 401(k).
OTOH, ocking up senior management and the boards of directors would be a little easier to accomplish, and likely to gather a bit more public support.
The demonstration in question goes back far before Edison and his ridiculous animal electrocutions.
Luigi Galvani discovered (in 1771) that an electrical spark would cause the muscles in a set of dead frog's legs to twitch and jump:
http://en.wikipedia.org/wiki/Luigi_Galvani
If you were smoking blunts, what you were experiencing was most likely NICOTINE withdrawl. You do realize that cigar wrappers are made of tobacco, right?
Severe withdrawl symptoms from cannabis itself are pretty much unknown. Tobacco, OTOH, is said by many to be as hard or harder to kick than heroin.
That "death and taxes" poster is great! May have to order one.
A simpler representation of the true size of the "defense" budget is prepared every year by the War Resister's League. Their 2009 version is online at:
http://www.warresisters.org/pages/piechart.htm
Once upon a time there was NYC's "Radio Row" near Cortland and Canal streets, but that started dying out when the WTC was built and the whole area got turned into yuppie hell. Several blocks of stores selling all manner of electronics, parts, military surplus, tubes, etc.
http://en.wikipedia.org/wiki/Radio_Row
All that remains of this history nowadays are a couple stores selling crappy car stereo junk.
NASA is a civilian agency, not a "wing" of any branch of the military.
Military space operations are run by the USAF Space Command and/or SAC.
[quote]I'd bet that Madame Curie - two times Nobel Prize winner in physics in the early 1900s had hair on her upper lip too.[/quote]
Nah, it all fell out from the radiation exposure....
The data came in over an ETHERnet cable?
FFS, people, when will it be understood that Hemp is much more than just Cannabis?
Industrial hemp is just a cultivar of C. Sativa that is bred for fiber and oil production.
There are 3 separate species of Cannabis, and many different cultivars and hybrid varieties.
ALL hemp is Cannabis. But not all Cannabis is hemp. The varieties grown for drug use are generally pretty poor fiber producers.
But if you don't have a network connection (and the machine is physically secured to protect the USB ports and removable media drives), then you don't NEED anti-virus software. Without a means for a virus to get onto the machine, it should be perfectly safe.
Having a live network connection only for the purpose of updating an unnecessary AV package provides a route of infection in itself. Unless the machine needs a network connection for another reason, then it shouldn't be connected to a network.
I maintain several Windows (and DOS) boxes which are used for stand-alone machine controls, and none of them have ever had a problem with virus infections (despite complete lack of AV software), because there is no way for a virus to get onto them. The front panel USB and floppy/CD ports are disabled (physically unplugged inside the machines), and the rear panel USB ports are filled with epoxy glue. If I need to update software, I just open the box, and plug the cables in as needed.
If you make every pylon different, you lose the ability to mass-produce the component parts. When the time comes to erect them, the assembly crews are dealing with different parts and different drawings each time, so there is no "learning from experience". And each separate design will need to be tested individually for wind resistance, structural integrity, ice loading, etc.
Yeah, they look cool, but the downsides are numerous, and most likely a project-killer.
I think the main difference is that I have never heard of any caffeine overdose related deaths.
http://www.ncbi.nlm.nih.gov/pubmed/15935584
http://www.erowid.org/chemicals/caffeine/caffeine_health.shtml
Now you have.
And if it's good enough for Jayzuss than it's good enough for our kids!