One also hears about this with people with common names, especially in the recent airport security shenanigans. There have been people barred from airplanes because their name was on a list of dangerous people, like Ted Kennedy.
TSA: You're Ted Kennedy?? Ted:Yes TSA: The Ted Kennedy? Ted:Yes, I am. TSA: You're under arrest. Ted: Oh, no, I'm not that Ted Kennedy, I'm the senator.
Personally, my name isn't especially common, but the police called my mother once because someone with a similar sounding name beat somebody up. Luckily, I had a rock-solid alibi.
Is it so neglible? From their home page they have 59,000 tons of capacity. 59,000 tons of cooled air is not insignificant.
First of all, cooling tons have nothing to do with a mass of air. A cooling ton is defined by a ton of melting ice in a 24 hour period. It's a unit of power, approximately equal to 12000 BTU/hr.
And B. The water is not circulated, per se, but sent to the municipal water supply. There, it probably reaches ambient temperature of the treatment plant before being sent back to the environment. It would reach that temperature without the pre-heating in the air conditioning plant.
In all, it sounds like you are using environmentalism to support your desire for warmer conditions indoors. I believe environmentalism gets used too often by people who want to consolodate power or effect solcial change for their own purposes. Furthermore, knee-jerk reactions intended to protect the environment, but without scientific basis, do more harm than good. Your admonition to 'use less air conditioning' would be more useful if it were 'use less energy,' which this project does, by the way.
The total change will be greater than zero, because now they are taking the cold water instead of just the water. The net effect on the lake will be the difference between the energy in the water that was used before and the energy in the water that is used now. Maybe the water they drank in the summer used to start out at close to air temperature....
I don't study large lakes either, but I did take a few minutes to run some numbers. Based on somebody's claim of 430 trillion gallons of water in Lake Ontario (and I assumed US gallons, as that is the most common gallon still in use), I came up with 216700 megawatts required to raise the average temperature of the lake one Kelvin in one year.
I assumed standard water (1 kg/L) when converting from volume to mass. I also used only two significant digits for specific heat capacity (4.2 kJ/KgK). I also assumed uniform temperature and uniform heat distribution because I'm looking for averages, to get an idea of order of magnitude.
Anyway, I RTFA and saw that the cooling power is only about 207 megawatts. That convinced me to rule out any macroscopic environmental consequences and get on with my life.
If you can name one unforeseeable circumstance that we can't come up with a solution for, I'll give you seven points. (I've read that three and seven are both funny numbers, and three has been way overused.)
I believe you can use any three sufficiently different colors to make (simulate?) any of the colors between them on a color chart. Of course, I'm thinking of a specific type of chart the axes of which escape me....
I don't think there's really been all that much innovation.
Followed by a list of innovations:
Specialized searches: Google has done an incredible job with Google News......Froogle, a shopping site which unfortunately isn't quite as good as sites like Pricegrabber or Pricewatch (yet)....still-in-development stuff like Google local......Google Groups, which searches Usenet discussions.
Yup, still waiting for that innovation to start rolling in....
Re:The empire was a force for good as well as bad
on
That's Sir Tim to You
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· Score: 1
I don't believe the genocide of the Native American population (partial genocide, anyway) can be blamed on the British system of government. Perhaps more accurately, it could be blamed on the European strategy of commerce and exploration. If you remember, the Spanish were more effective in wiping out the lands they colonized further south. I'm sure the French and Portugese would have done the same if either had been the dominant force at the time.
Perhaps better examples of how British politics affect a region could be found in India or South Africa. Unfortunately, I am not prepared to comment on either of those. Discuss among yourselves....
That's the F-16 Lawn Dart. The F-15 has two engines, and has made much less of a reputation as a ground penetrator, perhaps because of the redundancy. The F-16 has only one, which typically fails, rather than being turned off.
Perhaps the penalty for getting hit is to go to the regen point to reset your equipment, like a typical first person shooter. Then the incentive is not to have to travel to point A, wasting time en route, when you could be playing laser tag.
Don't forget to adjust your time-of-flight numbers upward to account for aerodynamic slowing. A (relatively) large, lightweight projectile will decelerate significantly once it has left the muzzle. I don't know the max range of a typical paintball gun, so I can't take a stab at the math.
I noticed on the last page of this guide the Bell Systems' logo. That reminded me of several similar booklets on different subjects my father brought home from work years ago. The booklets all seem to have been reprinted to order for the company, as they are marked "Western Electric Booklet Rack Service for Employees." Some of the titles follow:
Useful Knots and How to Tie Them.
Tips on Using Power Tools
Basic Techniques in Woodworking and Carpentry
All Kinds of Money, a lively and readable explanation of our country's credit system.
There is another one that I can't seem to track down, that is called "The Richest Man in Babylon," and explains the principle of paying yourself first to become wealthy over time. These booklets are all about 20-30 pages long, and many are still a good source to learn the basics of a subject.
It's always difficult to judge historic events by today's standards. Something like the Gemini flight helped shape the current view of fod in the cockpit.
Except that it's not impossible to radiate back to the sun. I can shine a flashlight at the sun, essentially doing the same thing. Now, if my flashlight were hotter than the sun, it would still be absorbing energy from the sun, although it would be radiating energy more rapidly (per unit area, or whatever) than the sun itself. The impossible part is getting anything that hot by only using the sun's radiation.
To state your explaination another way, imagine a target at the center of a sphere that is at 6 kilokelvin. How hot will it get? It will reach thermal equilibrium.
On the other hand, we could get the target that hot and then heat it further with electricity generated from solar cells at an adjacent facility. Then, once the fusion is started, it can keep itself going with its own heat.
I was on a flight that was carrying both cargo and personnel, and ended up having more cargo weight than planned, due to people bringing more than the pre-arranged weight limit of luggage. I got to hear the discussion about how the flight would be cancelled due to being overweight, or some of the cargo would be Fed-Exed to the destination. Eventually, we did board the plane with all the luggage.
Then, for about 10 minutes just prior to takeoff, the pilot informed us that he would be "checking something on the engines" for a few minutes. We then heard the engines spool up as he brought the plane to high power until he had burned enough fuel to take off safely. We used the whole runway on that takeoff....
Am I the only one whose first thought was that some hapless nuclear worker's thermoluminescent dosimeter exploded? I imagine it happened while reading it, so it probably didn't injure anybody, but still, nuclear safety and monitoring devices should be safe, at the very least.
And what's with all the comments about IP addresses?
The original joke (as I heard it) was about the SR-71 requesting flight level 600. Although it emphasizes the additional altitude of Spaceship One to request FL1000 in the joke, class A airspace only goes up to FL600, so there really aren't flight levels above that. Sure, there's plenty of altitude up there, but flight levels have a specific meaning only between FL180 and FL600.
Slashdot Mirror
TSA: You're Ted Kennedy??
Ted:Yes
TSA: The Ted Kennedy?
Ted:Yes, I am.
TSA: You're under arrest.
Ted: Oh, no, I'm not that Ted Kennedy, I'm the senator.
Personally, my name isn't especially common, but the police called my mother once because someone with a similar sounding name beat somebody up. Luckily, I had a rock-solid alibi.
First of all, cooling tons have nothing to do with a mass of air. A cooling ton is defined by a ton of melting ice in a 24 hour period. It's a unit of power, approximately equal to 12000 BTU/hr.
And B. The water is not circulated, per se, but sent to the municipal water supply. There, it probably reaches ambient temperature of the treatment plant before being sent back to the environment. It would reach that temperature without the pre-heating in the air conditioning plant.
In all, it sounds like you are using environmentalism to support your desire for warmer conditions indoors. I believe environmentalism gets used too often by people who want to consolodate power or effect solcial change for their own purposes. Furthermore, knee-jerk reactions intended to protect the environment, but without scientific basis, do more harm than good. Your admonition to 'use less air conditioning' would be more useful if it were 'use less energy,' which this project does, by the way.
If that's rule number one, then rule number two would be "shit stinks." I've had them in the wrong order for years.
The total change will be greater than zero, because now they are taking the cold water instead of just the water. The net effect on the lake will be the difference between the energy in the water that was used before and the energy in the water that is used now. Maybe the water they drank in the summer used to start out at close to air temperature....
I assumed standard water (1 kg/L) when converting from volume to mass. I also used only two significant digits for specific heat capacity (4.2 kJ/KgK). I also assumed uniform temperature and uniform heat distribution because I'm looking for averages, to get an idea of order of magnitude.
Anyway, I RTFA and saw that the cooling power is only about 207 megawatts. That convinced me to rule out any macroscopic environmental consequences and get on with my life.
If you can name one unforeseeable circumstance that we can't come up with a solution for, I'll give you seven points. (I've read that three and seven are both funny numbers, and three has been way overused.)
I believe you can use any three sufficiently different colors to make (simulate?) any of the colors between them on a color chart. Of course, I'm thinking of a specific type of chart the axes of which escape me....
If it's traffic school or anything to do with navigation, I'll go with green.
Followed by a list of innovations:
Yup, still waiting for that innovation to start rolling in....
Well, then, I say it's funny.
Perhaps better examples of how British politics affect a region could be found in India or South Africa. Unfortunately, I am not prepared to comment on either of those. Discuss among yourselves....
That's the F-16 Lawn Dart. The F-15 has two engines, and has made much less of a reputation as a ground penetrator, perhaps because of the redundancy. The F-16 has only one, which typically fails, rather than being turned off.
Perhaps each team's base could offer a reset key.
Don't forget to adjust your time-of-flight numbers upward to account for aerodynamic slowing. A (relatively) large, lightweight projectile will decelerate significantly once it has left the muzzle. I don't know the max range of a typical paintball gun, so I can't take a stab at the math.
Useful Knots and How to Tie Them.
Tips on Using Power Tools
Basic Techniques in Woodworking and Carpentry
All Kinds of Money, a lively and readable explanation of our country's credit system.
There is another one that I can't seem to track down, that is called "The Richest Man in Babylon," and explains the principle of paying yourself first to become wealthy over time. These booklets are all about 20-30 pages long, and many are still a good source to learn the basics of a subject.
Or, "Well, let's see, whom did you call?"
It's always difficult to judge historic events by today's standards. Something like the Gemini flight helped shape the current view of fod in the cockpit.
I have only made it to half that depth without shorts. Kudos to you.
Sometimes people really need to hear what they don't want to -- for their own good, of course.
Actually, one of the links on the second page is a story from ABC news about the past predictions of future innovations.
BTW, I didn't read the article.
Oh, I don't know about that, Dino doesn't seem all that dangerous to me....
To state your explaination another way, imagine a target at the center of a sphere that is at 6 kilokelvin. How hot will it get? It will reach thermal equilibrium.
On the other hand, we could get the target that hot and then heat it further with electricity generated from solar cells at an adjacent facility. Then, once the fusion is started, it can keep itself going with its own heat.
Then, for about 10 minutes just prior to takeoff, the pilot informed us that he would be "checking something on the engines" for a few minutes. We then heard the engines spool up as he brought the plane to high power until he had burned enough fuel to take off safely. We used the whole runway on that takeoff....
And what's with all the comments about IP addresses?
The original joke (as I heard it) was about the SR-71 requesting flight level 600. Although it emphasizes the additional altitude of Spaceship One to request FL1000 in the joke, class A airspace only goes up to FL600, so there really aren't flight levels above that. Sure, there's plenty of altitude up there, but flight levels have a specific meaning only between FL180 and FL600.