Ammonia is still widely used for large scale ice plants such as those found in hockey arenas and so forth. There was an accident in rural British Columbia recently where three workers were killed by an ammonia leak.
What if what you get is worth less than what you paid for the loot box? I suppose it's a bit specious given that digital items can be reproduced at a whim, and are therefore costless.
Does anyone know what is keeping the system in its current state?
Most likely, it's the typical American aversion to paying taxes. The reality is that you get what you pay for, and you don't get what you don't. It's just that simple. So, to pass balanced budgets and give tax cuts to the rich, the powers that be let the infrastructure deficit grow and grow, and leave the problem to the next generation.
The alternative to load and go is transporting the flight crew and personnel to the top of a rocket that's already fully fueled. Essentially personnel are working in areas with minimal protection and no ejection system standing next to a 230 foot tall bomb.
And this is the crux of the debate. On the one side, as you point out, in a load and go situation such as SpaceX's current launch technique the technicians especially would not be in close proximity to a fully loaded rocket. However, once strapped in, the Astronauts in the capsule will be in close proximity to a rocket that is going through significant stresses and dynamic changes as it is loaded with fuel, cryogenic oxidizer, and pressurant. Yes, the dragon 2 has a pretty good escape mechanism, but a good conservative Engineer never bases safety calculations on emergency systems working.
The other (and traditional) option is to load propellants into the rocket first, let it go to steady state, then board it and go. In this case, yes you're exposing more people to a fueled rocket, but you're only doing so after the rocket has had time to settle.
So it really comes down to a risk calculation, what is more dangerous? Working around a fully fueled but reasonably stable rocket, or putting the rocket through potentially significant changes by loading it.
I'm also really not convinced of the safety concerns as the basic LOX-RP1 combination is probably the most common
The issue isn't so much the propellants in question, but loading them while the astronauts are already onboard. Losing propellants into the rocket is a dynamic process, as the structure cools, and takes the structural loads of that propellant. Until now, the procedure has always been to load the rocket first, allow it to reach steady state, then load the astronauts. Because of the sub-chilled propellants, SpaceX can't do this as the propellants will warm up.
The issue, and concern, is that loading propellants is a dynamic process. The rocket is going through transients as the mass and temperature changes. Traditionally, the astronauts were loaded into the vehicle once it has got steady state, NASA's concern is that doing the dynamics with the astronauts aboard is an additional risk.
The design changes were made to the helium tanks, not the LOX. The Amos 6 conflagration was caused by solid oxygen crystals forming in the composite wrap around the He tanks
It really depends on where you are. In a lot of places, the trades are absolutely starved for people, and will readly accept anyone who is willing to put in the effort to actually work hard and learn the trade.
If you're interested in electrical, always a good idea to contact your local IBEW branch, many of them will have all the information you need to get into the trade, and get better wages/benefits than you would otherwise.
Airports are large enough that standard wifi-based location determination would be more than adequate. That said, some airports could really use the time to improve their internal wayfinding system, basically the signage/gate numbering, and so forth. I used to fly 100,000+ miles a year for work, and for an experienced flyer, most airports are pretty good. The exceptions are hell holes like LAX.
The biggest improvement in recent years is things like the airline apps that will give you up-to-date gate information as you deplane to help you get to your next gate.
But that still doesn't help a newbie that hasn't ever navigated an airport before, perhaps some sort of navigation app that would show them the signs and things that they should follow?
One thing Canada doesn't allow is direct-to-consumer drug advertising. US commercials are filled with "Are you feeling XXX? Perhaps you have condition YYYY. Consult your doctor and see if ZZZZ is right for you!". This is one way to bypass generic drugs - if you're asking for them by name, there's no option to buy the generic version of the same drug.
Well, it's a little more complex in Canada. You're allowed to advertise a drug name, but not what it treats, or you can advertise a condition but not a drug to treat it. This is how you get some rather cheeky Viagra and Cialis advertisements, and a lot of advertisements on various conditions that just say "talk to your doctor if you feel this way".
First, the tower is grounded and at the same potential as earth. The primary concern is not electric shock.
Not on AM broadcast towers. The tower itself *is* the antenna. It's built with large electrical insulators at their base, and the guy wires are also heavily insulated. At the base, there is a spark gap to discharge any lightning strikes, and the tower itself is connected to the transmitter.
I'm an EE by training (though on the light side of the world, where 12V is "High Voltage"). Some of the best things I've learned are from the times when I've volunteered for a non-profit and wound up playing gopher and assistant for a journeyman electrician.
I come from the opposite end of the political spectrum, but I really wish that there were more conservative people like you. As an ardent progressive, I actually really enjoy lively (and respectful) debate that challenges the preconceived notions I may carry.
TL;DR: You and I would probably disagree on pretty much everything, but would enjoy having a beer.
They're not supposed to be used as work-arounds when the President can't get a law passed that he wants.
What the US needs, then, is a mechanism to deal with a dysfunctional government. In Canada, for example, if a matter of confidence fails to pass (the budget being the big one), the government falls, and an election occurs shortly thereafter. Even with the absurdity that is the Citizens United decision, eventually the taps will run out of money for another election campaign.
My late 2011 MBP was recalled, and new motherboard 18 months after the extended warranty ran out, due to the Radeon GPU issues. Walked into the Apple Store, they swapped it out no questions asked. On a laptop that was almost old enough to go to kindergarten.
One of the most modern writing systems is likely to be the "Canadian Aboriginal Syllabics" system. It was developed around 1840, and is used to write multiple First Nations languages (Cree and Ojibwe) as well as Inuktitut (The language of the Inuit people). If you haven't seen it before, it looks a lot like runes with extra triangles, but it's a fully fleshed writing system, with full Unicode support.
Vancouver, BC has a fairly large electric bus system, and has had it for over 50 years. The trollybus system covers most arterial routes, and while the buses are primarily powered off the overhead wires, they can go for short distances (under 1km IIRC) on internal batteries. The latter capacity is primarily used to get around detours or accidents.
With one of these systems, your buses are as clean as your power supply, and you don't need to muck around with expensive/polluting batteries to the same degree.
That's why it's done, of course, but that's due to inadequate tools rather than anything else. Hell, even LaTeX could handle big documents, never mind PageMaker and so forth. It's just people that try to put together complex documents in Word where this fails.
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Ammonia is still widely used for large scale ice plants such as those found in hockey arenas and so forth. There was an accident in rural British Columbia recently where three workers were killed by an ammonia leak.
well, no, it could be 22.5% +/- 7.5%
I knew the mice must be in on it...
Guess I'll just go back to my pan galactic gargleblaster.
At least it's not German.
What I never understood about MTG is why people didn't just fab up their own cards. It's just a piece of cardstock with ink on it.
What if what you get is worth less than what you paid for the loot box? I suppose it's a bit specious given that digital items can be reproduced at a whim, and are therefore costless.
Does anyone know what is keeping the system in its current state?
Most likely, it's the typical American aversion to paying taxes. The reality is that you get what you pay for, and you don't get what you don't. It's just that simple. So, to pass balanced budgets and give tax cuts to the rich, the powers that be let the infrastructure deficit grow and grow, and leave the problem to the next generation.
You must be in a province other than British Columbia...
The alternative to load and go is transporting the flight crew and personnel to the top of a rocket that's already fully fueled. Essentially personnel are working in areas with minimal protection and no ejection system standing next to a 230 foot tall bomb.
And this is the crux of the debate. On the one side, as you point out, in a load and go situation such as SpaceX's current launch technique the technicians especially would not be in close proximity to a fully loaded rocket. However, once strapped in, the Astronauts in the capsule will be in close proximity to a rocket that is going through significant stresses and dynamic changes as it is loaded with fuel, cryogenic oxidizer, and pressurant. Yes, the dragon 2 has a pretty good escape mechanism, but a good conservative Engineer never bases safety calculations on emergency systems working.
The other (and traditional) option is to load propellants into the rocket first, let it go to steady state, then board it and go. In this case, yes you're exposing more people to a fueled rocket, but you're only doing so after the rocket has had time to settle.
So it really comes down to a risk calculation, what is more dangerous? Working around a fully fueled but reasonably stable rocket, or putting the rocket through potentially significant changes by loading it.
Because that would disrupt all the legitimate VOIP operators and so forth that also need access to the phone system.
I'm also really not convinced of the safety concerns as the basic LOX-RP1 combination is probably the most common
The issue isn't so much the propellants in question, but loading them while the astronauts are already onboard. Losing propellants into the rocket is a dynamic process, as the structure cools, and takes the structural loads of that propellant. Until now, the procedure has always been to load the rocket first, allow it to reach steady state, then load the astronauts. Because of the sub-chilled propellants, SpaceX can't do this as the propellants will warm up.
The issue, and concern, is that loading propellants is a dynamic process. The rocket is going through transients as the mass and temperature changes. Traditionally, the astronauts were loaded into the vehicle once it has got steady state, NASA's concern is that doing the dynamics with the astronauts aboard is an additional risk.
The design changes were made to the helium tanks, not the LOX. The Amos 6 conflagration was caused by solid oxygen crystals forming in the composite wrap around the He tanks
It really depends on where you are. In a lot of places, the trades are absolutely starved for people, and will readly accept anyone who is willing to put in the effort to actually work hard and learn the trade.
If you're interested in electrical, always a good idea to contact your local IBEW branch, many of them will have all the information you need to get into the trade, and get better wages/benefits than you would otherwise.
Airports are large enough that standard wifi-based location determination would be more than adequate. That said, some airports could really use the time to improve their internal wayfinding system, basically the signage/gate numbering, and so forth. I used to fly 100,000+ miles a year for work, and for an experienced flyer, most airports are pretty good. The exceptions are hell holes like LAX.
The biggest improvement in recent years is things like the airline apps that will give you up-to-date gate information as you deplane to help you get to your next gate.
But that still doesn't help a newbie that hasn't ever navigated an airport before, perhaps some sort of navigation app that would show them the signs and things that they should follow?
One thing Canada doesn't allow is direct-to-consumer drug advertising. US commercials are filled with "Are you feeling XXX? Perhaps you have condition YYYY. Consult your doctor and see if ZZZZ is right for you!". This is one way to bypass generic drugs - if you're asking for them by name, there's no option to buy the generic version of the same drug.
Well, it's a little more complex in Canada. You're allowed to advertise a drug name, but not what it treats, or you can advertise a condition but not a drug to treat it. This is how you get some rather cheeky Viagra and Cialis advertisements, and a lot of advertisements on various conditions that just say "talk to your doctor if you feel this way".
First, the tower is grounded and at the same potential as earth. The primary concern is not electric shock.
Not on AM broadcast towers. The tower itself *is* the antenna. It's built with large electrical insulators at their base, and the guy wires are also heavily insulated. At the base, there is a spark gap to discharge any lightning strikes, and the tower itself is connected to the transmitter.
AM tower arrays usually are not shared, as the entire tower is the radiator. Other electronics don't like being excited by 50kW of RF energy.
I'm an EE by training (though on the light side of the world, where 12V is "High Voltage"). Some of the best things I've learned are from the times when I've volunteered for a non-profit and wound up playing gopher and assistant for a journeyman electrician.
I come from the opposite end of the political spectrum, but I really wish that there were more conservative people like you. As an ardent progressive, I actually really enjoy lively (and respectful) debate that challenges the preconceived notions I may carry.
TL;DR: You and I would probably disagree on pretty much everything, but would enjoy having a beer.
They're not supposed to be used as work-arounds when the President can't get a law passed that he wants.
What the US needs, then, is a mechanism to deal with a dysfunctional government. In Canada, for example, if a matter of confidence fails to pass (the budget being the big one), the government falls, and an election occurs shortly thereafter. Even with the absurdity that is the Citizens United decision, eventually the taps will run out of money for another election campaign.
My late 2011 MBP was recalled, and new motherboard 18 months after the extended warranty ran out, due to the Radeon GPU issues. Walked into the Apple Store, they swapped it out no questions asked. On a laptop that was almost old enough to go to kindergarten.
One of the most modern writing systems is likely to be the "Canadian Aboriginal Syllabics" system. It was developed around 1840, and is used to write multiple First Nations languages (Cree and Ojibwe) as well as Inuktitut (The language of the Inuit people). If you haven't seen it before, it looks a lot like runes with extra triangles, but it's a fully fleshed writing system, with full Unicode support.
Vancouver, BC has a fairly large electric bus system, and has had it for over 50 years. The trollybus system covers most arterial routes, and while the buses are primarily powered off the overhead wires, they can go for short distances (under 1km IIRC) on internal batteries. The latter capacity is primarily used to get around detours or accidents.
With one of these systems, your buses are as clean as your power supply, and you don't need to muck around with expensive/polluting batteries to the same degree.
That's why it's done, of course, but that's due to inadequate tools rather than anything else. Hell, even LaTeX could handle big documents, never mind PageMaker and so forth. It's just people that try to put together complex documents in Word where this fails.