Forgive my ignorance, but I was under the impression that compression was caused by the reduction in volume within the cylinders between the bottom and top ends of the piston stroke, and had nothing to do with the particular gas that was being compressed. As a person who designs engines, I will note that the parent is correct and should be modded +5 insightful and grandparent should be modded down significantly for not knowing what he is talking about.
One correction to parent, unleaded gas autodetonates at lower compression ratios. Meaning detonates due to pressure/temperature without spark. A related phenomenon that is most likely to occur is knock.
...they'd like to have a similar system for boats, as well. They're looking for a device that can, from 100 meters away, 'safely stop or significantly impede the movement' of vessels up to 40 feet long I hear the Somalians are interested in the technology too. Just for different purposes
to have bloggers write about you. It just happens. It's like trying to be cool. You either are, or you aren't. No amount of effort can change the fact your a nerd (or in this case, not a nerd).
He'll just end up coming across as creepy and forceful.
If they are trying to expose this device to cosmic radiation, the ISS is the wrong place to do it. ISS is in low earth orbit, which is below the Van Allen radiation belt. While it will see more cosmic radiation than here on earth, (mostly due to the South Atlantic Anomaly) A higher orbit is needed for a true simulation of a trip to deep space.
As I agree with most of what you posted, you are assuming that the material absorbing the heat is the same material that radiates it. One can vary the surface area and emissivity to change the rate of heat transfer. They even mention doing so in the article.
...it will get its electricity from liquid-cooled solar panels that can retract behind the heat-shield when sunlight becomes too intense.
I should hope that the solar probe has magnetic shielding, just to get a high stress test of tech. Magnetic shielding would be advantageous. Especially since the majority of the particles coming from the sun appear to be charged. However, the objectives of the mission state that it intends to study magnetic fields and the charged particles from the sun. These objectives would be difficult to meet with magnetic shielding.
My guess is that the Venus flybys are the answer. They fly the probe into the shadow of Venus and get it cold (remember only radiation transfers heat in space so the shade of Venus should be very cold). Then the probe points it's heat shield at the sun and makes a pass to collect data. Remember, heat transfer is not instantaneous. Because it's 10^6K outside does not mean it's instantly 10^6K inside. It simply means that the time it takes to reach, for example, 5800K is shorter than the time it would take if it was 5800K outside.
By putting water (or other expendable materials) aboard the craft, they can further lengthen the time the craft can spend in extreme heat because it takes energy and therefore time for the water to convert to steam.
Basically, it will use the same principles firewalkers use to keep them from burning their feet.
have a real hard time understanding what policies McCain is offering that are appealing to the voting public. I would like to hear a McCain supporter explain his appeal just to understand the other side of this election. I'm not a McCain supporter but from what I understand it's all about security and national pride.
McCain supporters are concerned that terrorists are around every corner, out to take away the American dream. They feel that the USA is the country all other countrys are trying to be, and the US should help them realize that dream. Withdrawing from Iraq would be letting down not only the Iraqi people, but oppressed people everywhere.
There are other reasons too, such as gun control, free trade, and lower taxes. But I think what I posted above sums it up pretty well.
I will probably get modded out of existence for this, but it's the way I see it.
1. Track down the virus' creator.
2. Encrypt his/her data with a similar algorithm plus a key logger.
3. The keylogger phones home with the key the perpetrator used to decrypt his/her data.
4. Profit!
If we take known data and expose it to this virus, it will encrypt it so well that it takes 15 million computers to figure out the key?
I assume the folks at Kaspersky labs know what they are doing, but known data? Even if we get several samples of known data and compare it to it's encrypted counterpart, it takes 15 million computers?
I mean Colossus only had suspected known data, such as, "Nothing to report" and broke the enigma code. That's impressive!
I should remind you the N95 has been around WAY longer then the iPhone. Also, the new iPhone and Android (I'll believe it when I see it) aren't comparable with the N95 because they are the new generation. A comparable phone would be the N96.
As for superiority, I have one thing to say, Wi-Fi.
yeah yeah, and "America" is two continents. Calling somebody "American" could make them Brazilian, right?
I will gladly stop calling people from the UK "British" or "Britons" (which apparently doesn't refer to the ancient people of Great Briton) if they stop calling me "American."
From now on people from the UK are "United Kingdomers" and people from the US are "United States of Americans" but you can call us "United Statesians" for short.
That's the idea behind Audi's Diesel cars in those races, and they have been tremendously successful. Whenever somebody develops a new technology that proves superior at Le Mans, the other teams cry about it and it's either banned or handicapped. Le Mans is a terrible example of the type of racing I'm talking about, for just that reason.
Making more pit stops can be compensated for by being faster on the track. Most automotive race leagues want to limit speed by limiting the technology used on the vehicle. I'm saying, they need to limit the speed by limiting the fuel available to use.
Because they're afraid they'll be crushed to a fine pulp when they get hit by a big honking SUV. I can think of something bigger and more honking than an SUV. I don't see them going away, no matter how high gas prices go.
If racing is to be used as a testbed for automotive technology, we need to put more emphasis on fuel efficiency. F1 using hybrid cars is a nice idea, but everyone will have the same setup. We need more competition.
I propose that one of the major racing leagues starts implementing fuel caps on each race. A good starting point is the average fuel currently burned by each car in a given race. By making this the cap, next years competitors have roughly a 50% chance of winning the race unless they improve their vehicle to be more fuel efficient. Each year the previous year's average fuel consumption will be used to determine the amount of fuel alloted.
The average will go down because no team can use more than the previous year's average (they will run out of gas). By eliminating things like restrictor plates or downforce restrictions the teams are free to be creative at how they accomplish these goals.
When you get right down to it, every display in the world can only display three colors, which are dithered together to create the illusion of full color. Agreed. If a picture of a banana is on the monitor and you view it through a perfect yellow filter, you can't see the banana.
That's the problem with companies today. Not just today, it's been done this way for over 100 years. Ever notice that you can't buy old fashioned safety razors anymore? By giving away razors with more blades they encouraged men to switch to blades that are more expensive, and forced the inexpensive blade manufacturer's out of the market. It's the business model that made Gillette the company it is today.
On a side note, does anybody know where I can get a package of 10 hot dog buns?
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One correction to parent, unleaded gas autodetonates at lower compression ratios. Meaning detonates due to pressure/temperature without spark. A related phenomenon that is most likely to occur is knock.
...they'd like to have a similar system for boats, as well. They're looking for a device that can, from 100 meters away, 'safely stop or significantly impede the movement' of vessels up to 40 feet long I hear the Somalians are interested in the technology too. Just for different purposesto have bloggers write about you. It just happens. It's like trying to be cool. You either are, or you aren't. No amount of effort can change the fact your a nerd (or in this case, not a nerd).
He'll just end up coming across as creepy and forceful.
If they are trying to expose this device to cosmic radiation, the ISS is the wrong place to do it. ISS is in low earth orbit, which is below the Van Allen radiation belt. While it will see more cosmic radiation than here on earth, (mostly due to the South Atlantic Anomaly) A higher orbit is needed for a true simulation of a trip to deep space.
Mod parent up, quite insightful.
For the record, I think they will dissipate the built up heat in the shadow of Venus.
Plus, it wasn't mentioned in TFA.
I never said "stop"
Ross Perot, Dan Quayle, Tonya Harding, Al Sharpton, Courtney Love, Spike Lee, Tom Arnold, Pauly Shore, Rosie O'Donnell and Dr. Laura
My guess is that the Venus flybys are the answer. They fly the probe into the shadow of Venus and get it cold (remember only radiation transfers heat in space so the shade of Venus should be very cold). Then the probe points it's heat shield at the sun and makes a pass to collect data. Remember, heat transfer is not instantaneous. Because it's 10^6K outside does not mean it's instantly 10^6K inside. It simply means that the time it takes to reach, for example, 5800K is shorter than the time it would take if it was 5800K outside.
By putting water (or other expendable materials) aboard the craft, they can further lengthen the time the craft can spend in extreme heat because it takes energy and therefore time for the water to convert to steam.
Basically, it will use the same principles firewalkers use to keep them from burning their feet.
I think, your both off topic.
McCain supporters are concerned that terrorists are around every corner, out to take away the American dream. They feel that the USA is the country all other countrys are trying to be, and the US should help them realize that dream. Withdrawing from Iraq would be letting down not only the Iraqi people, but oppressed people everywhere.
There are other reasons too, such as gun control, free trade, and lower taxes. But I think what I posted above sums it up pretty well.
I will probably get modded out of existence for this, but it's the way I see it.
1. Track down the virus' creator.
2. Encrypt his/her data with a similar algorithm plus a key logger.
3. The keylogger phones home with the key the perpetrator used to decrypt his/her data.
4. Profit!
If we take known data and expose it to this virus, it will encrypt it so well that it takes 15 million computers to figure out the key?
I assume the folks at Kaspersky labs know what they are doing, but known data? Even if we get several samples of known data and compare it to it's encrypted counterpart, it takes 15 million computers?
I mean Colossus only had suspected known data, such as, "Nothing to report" and broke the enigma code. That's impressive!
Thanks for staying on topic
I should remind you the N95 has been around WAY longer then the iPhone. Also, the new iPhone and Android (I'll believe it when I see it) aren't comparable with the N95 because they are the new generation. A comparable phone would be the N96.
As for superiority, I have one thing to say, Wi-Fi.
that deserves mod up right there.
I will gladly stop calling people from the UK "British" or "Britons" (which apparently doesn't refer to the ancient people of Great Briton) if they stop calling me "American."
From now on people from the UK are "United Kingdomers" and people from the US are "United States of Americans" but you can call us "United Statesians" for short.
end sarcasm
Making more pit stops can be compensated for by being faster on the track. Most automotive race leagues want to limit speed by limiting the technology used on the vehicle. I'm saying, they need to limit the speed by limiting the fuel available to use.
If racing is to be used as a testbed for automotive technology, we need to put more emphasis on fuel efficiency. F1 using hybrid cars is a nice idea, but everyone will have the same setup. We need more competition.
I propose that one of the major racing leagues starts implementing fuel caps on each race. A good starting point is the average fuel currently burned by each car in a given race. By making this the cap, next years competitors have roughly a 50% chance of winning the race unless they improve their vehicle to be more fuel efficient. Each year the previous year's average fuel consumption will be used to determine the amount of fuel alloted.
The average will go down because no team can use more than the previous year's average (they will run out of gas). By eliminating things like restrictor plates or downforce restrictions the teams are free to be creative at how they accomplish these goals.
Give me a call when they make one with a CMYK output.
On a side note, does anybody know where I can get a package of 10 hot dog buns?