Sorry, it took me a while to notice this response.
I'm forgetting a lot of my thermodynamics terminology, but the type of thermodynamic change between a solid phase and either of the fluid phases is different than the thermodynamic change between the two fluid phases (liquid and gas). You can intuitively see this, since the solid phase (for crystalline things) has a symmetry change and a fundamental change in how the system is ordered. Liquid and gas phases are very similar, except that particles are a lot closer together in liquid.
Anyway, if you look at a phase diagram (a map of phases at different temperatures and pressures), the point where all three phases coexist is the triple point. There's a second point at high temperature and pressure called the "critical point". It's the end of the line that separates the liquid and gas phases. Above the critical point, the liquid and gas phases are the same. In fact, you can start with a liquid, raise the temperature and pressure so that you're past the critical point, lower the pressure, and then lower the temperature and pressure until you end up with a gas, never having crossed a phase transition.
The actual thermodynamics is tricky to understand but very entertaining.
A zero-friction liquid is a superfluid, not a Bose-Einstein condensate. Both superfluids and BEC are distinct phases of matter, though. Simply sharing some properties with another phase is insufficient -- otherwise liquid and gas wouldn't be distinct phases.
That might be the case, if it weren't for the fact that the time and location of DUI checkpoints generally have to be published ahead of time. So they're simply redistributing already-public knowledge.
That is a pansy-ass cooking temperature. At home, any thinner-crust pizza should be cooked in an oven of at least 500 F; more if you can manage it. A real brick pizza oven is substantially hotter, and commercial pizzerias regularly use them.
Terminal velocity should be much further than a few feet. Humans, which are not particularly aerodynamic, take a couple thousand feet to hit terminal velocity. A more compact object, like an iPhone, should have a higher terminal velocity. Since this one fell 1,000 feet, it's unlikely it hit terminal velocity at all.
Yes, you can use Disk Utility to make all sorts of weird encrypted disk images. Sparseimages and sparsebundles are pretty convenient. The one problem with putting sensitive files inside encrypted disk images is that between the application and the OS, it's easy for information about your documents (e.g., temporary copies of the document) to leak into unencrypted space. The major benefit of having individual encrypted disk images, besides the handy compartmentalization, is that you can use a password other than your login password. OS X login passwords are enormously easier to crack than the passwords on encrypted disk images, and you substantially weaken security in FileVault by having the two always be the same.
FileVault actually also uses a backup key stored in the recovery keychain, so that you can decrypt your home directory in the event you lose your passphrase. I'm not familiar with using the recovery keychain on a foreign system, though.
No. To recover, you simply open the.sparsebundle file on any Macintosh. It will prompt for your passphrase and mount the disk image.
If you use FileVault home directory encryption, the only thing your real home directory on disk contains is a single.sparsebundle file. Whenever you log in, that.sparsebundle is mounted (on top of your home directory's location). However, the entire login process is not necessary. A.sparsebundle is simple a disk image file, and a FileVault.sparsebundle is simply an encrypted disk image file. They can be opened and manipulated like a.dmg file.
With FileVault, you can recover your files on any Macintosh system. (You could technically recover your files on any system, but I don't know if anyone's written a sparsebundle reader for other OSes.)
Your home directory is, in fact, stored as a OS-X-specific disk image (sparsebundle) encrypted with your passphrase. It's not tightly bound to your particular computer or user account, except that the passphrase is required to be the same as your login password.
Capitalization is stylistic and doesn't apply to proper nouns. Spaces matter, though. However, trademarks are judged by similarity -- whether a person would be confused between the two.
Except that the combined value of all the gold and silver that has ever been mined is small compared to currency in the U.S., and it doesn't provide any real protection against inflation or against the creation of meaningless currency (as early English bankers demonstrated).
That's a list of scientists who believed in God, not scientists who were creationists. Most of them predate Darwin and his work -- a time period where being a creationist would be a lot more reasonable. Nearly all of them predate the development of evolutionary biology and the discovery of substantial evidence of long-term evolution and speciation. Only Planck and Einstein are reasonably modern.
Lots of people like to claim that scientific principles must be falsifiable. The softer argument works here, though: scientific principles must be able to make testable predictions. Any speculation that does not make a testable prediction isn't science.
Slashdot Mirror
You're thinking of people who post on Slashdot, which means they almost certainly are above the US poverty line.
Sorry, it took me a while to notice this response.
I'm forgetting a lot of my thermodynamics terminology, but the type of thermodynamic change between a solid phase and either of the fluid phases is different than the thermodynamic change between the two fluid phases (liquid and gas). You can intuitively see this, since the solid phase (for crystalline things) has a symmetry change and a fundamental change in how the system is ordered. Liquid and gas phases are very similar, except that particles are a lot closer together in liquid.
Anyway, if you look at a phase diagram (a map of phases at different temperatures and pressures), the point where all three phases coexist is the triple point. There's a second point at high temperature and pressure called the "critical point". It's the end of the line that separates the liquid and gas phases. Above the critical point, the liquid and gas phases are the same. In fact, you can start with a liquid, raise the temperature and pressure so that you're past the critical point, lower the pressure, and then lower the temperature and pressure until you end up with a gas, never having crossed a phase transition.
The actual thermodynamics is tricky to understand but very entertaining.
Yes, supercritical fluids.
A zero-friction liquid is a superfluid, not a Bose-Einstein condensate. Both superfluids and BEC are distinct phases of matter, though. Simply sharing some properties with another phase is insufficient -- otherwise liquid and gas wouldn't be distinct phases.
Plasma is the fourth "common" phase of matter.
Bose-Einstein condensates and other novel phase are also phases, but aren't exhibited in all materials.
For that matter, most solids, particularly crystalline solids, have many different phases that correspond to different crystalline structures.
Also, "liquid" and "gas" aren't always distinct phases.
10 mSv/yr is well within normal background radiation levels.
That might be the case, if it weren't for the fact that the time and location of DUI checkpoints generally have to be published ahead of time. So they're simply redistributing already-public knowledge.
That is a pansy-ass cooking temperature. At home, any thinner-crust pizza should be cooked in an oven of at least 500 F; more if you can manage it. A real brick pizza oven is substantially hotter, and commercial pizzerias regularly use them.
300 Celsius? That's almost as hot as a pizza oven. I can't imagine how they're going to find tools that can function at that temperature.
If there are microbes living in the mantle, they're probably not alien.
Still might eat your face, though.
Terminal velocity should be much further than a few feet. Humans, which are not particularly aerodynamic, take a couple thousand feet to hit terminal velocity. A more compact object, like an iPhone, should have a higher terminal velocity. Since this one fell 1,000 feet, it's unlikely it hit terminal velocity at all.
Yes, you can use Disk Utility to make all sorts of weird encrypted disk images. Sparseimages and sparsebundles are pretty convenient. The one problem with putting sensitive files inside encrypted disk images is that between the application and the OS, it's easy for information about your documents (e.g., temporary copies of the document) to leak into unencrypted space. The major benefit of having individual encrypted disk images, besides the handy compartmentalization, is that you can use a password other than your login password. OS X login passwords are enormously easier to crack than the passwords on encrypted disk images, and you substantially weaken security in FileVault by having the two always be the same.
Except they want $15/month for access.
FileVault actually also uses a backup key stored in the recovery keychain, so that you can decrypt your home directory in the event you lose your passphrase. I'm not familiar with using the recovery keychain on a foreign system, though.
No. To recover, you simply open the .sparsebundle file on any Macintosh. It will prompt for your passphrase and mount the disk image.
If you use FileVault home directory encryption, the only thing your real home directory on disk contains is a single .sparsebundle file. Whenever you log in, that .sparsebundle is mounted (on top of your home directory's location). However, the entire login process is not necessary. A .sparsebundle is simple a disk image file, and a FileVault .sparsebundle is simply an encrypted disk image file. They can be opened and manipulated like a .dmg file.
With FileVault, you can recover your files on any Macintosh system. (You could technically recover your files on any system, but I don't know if anyone's written a sparsebundle reader for other OSes.)
Your home directory is, in fact, stored as a OS-X-specific disk image (sparsebundle) encrypted with your passphrase. It's not tightly bound to your particular computer or user account, except that the passphrase is required to be the same as your login password.
What do you think the air around the power distribution line is *for*?
He means you'd have to ask a physicist why, at the same voltage, DC is slightly more efficient than AC.
No, most of the industrialized world is below population replacement fertility rates.
http://en.wikipedia.org/wiki/List_of_sovereign_states_and_dependent_territories_by_fertility_rate
In countries without America's socialist labor laws and social security, children are income earners, disability insurance, and retirement plan.
Capitalization is stylistic and doesn't apply to proper nouns. Spaces matter, though. However, trademarks are judged by similarity -- whether a person would be confused between the two.
Not according to them: http://www.microsoft.com/about/legal/en/us/IntellectualProperty/Trademarks/EN-US.aspx
So, Apple could call their new operating system Apple Windows?
(Incidentally, "Windows" by itself is a registered trademark.)
Except that the combined value of all the gold and silver that has ever been mined is small compared to currency in the U.S., and it doesn't provide any real protection against inflation or against the creation of meaningless currency (as early English bankers demonstrated).
That's a list of scientists who believed in God, not scientists who were creationists. Most of them predate Darwin and his work -- a time period where being a creationist would be a lot more reasonable. Nearly all of them predate the development of evolutionary biology and the discovery of substantial evidence of long-term evolution and speciation. Only Planck and Einstein are reasonably modern.
Lots of people like to claim that scientific principles must be falsifiable. The softer argument works here, though: scientific principles must be able to make testable predictions. Any speculation that does not make a testable prediction isn't science.