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Comment: Re:people drop their phones :( (Score 1) 198

by jo_ham (#48453779) Attached to: Corning Reveals Gorilla Glass 4, Promises No More Broken IPhones

You don;t seem to understand that "best" in this context doesn't refer to a literal superlative material, but to the best material currently available from a glass manufacturer at the time the product was made.

Comment: Re:OH GOODY (Score 2) 198

by jo_ham (#48453769) Attached to: Corning Reveals Gorilla Glass 4, Promises No More Broken IPhones

Why would you assume they were bashing Apple instead of Corning though? That makes no sense.

Ah yes, that well known Corning-hate on slashdot, with the frequent trope of being excited to upgrade your corning product on a short, repeating cycle like sheep.

I hardly think the original coward's target was non-obvious.

Comment: Re:people drop their phones :( (Score 1) 198

by jo_ham (#48444713) Attached to: Corning Reveals Gorilla Glass 4, Promises No More Broken IPhones

Every time I've seen someone with broken screen, it was an iPhone. It's about time Apple did this, but then they do profit by making phones that need repairs/ replacing.

About time Apple did what? Made their phones deliberately out of the best material available at the time and now out of a subsequently even better material made by a third party supplier that they don't control?

What did you think they are "about timing"? Making new phones out of a material that has only just been announced?

I'm not following.

Comment: Re:OH GOODY (Score 2) 198

by jo_ham (#48444659) Attached to: Corning Reveals Gorilla Glass 4, Promises No More Broken IPhones

Getting a bit defensive, are we? Vested interest? Gorilla Glass is made by Corning not Apple, so I'm not sure what you're babbling about.

What do you mean? I was directly replying to a brave coward who went for a cheap apple bash.

Is replying to that comment with an opposing opinion "getting defensive"? Isn't this a discussion forum?

Oh, right. I understand.

Comment: Re: How do I refill it? (Score 3, Informative) 194

by jo_ham (#48409751) Attached to: Toyota Names Upcoming Hydrogen Fuel Cell Car

Isn't the temperature a result of high pressure? As in, if you jam enough atoms into a space eventually they have less room to move and get colder? I'm sort of basing this off observation of my air compressor relief valve and not science. Air duster canisters can generate frost. That kind of thing.

So pressurizing a bunch of hydrogen would mean if it ruptures and someone touches the canister, instant frostbite.

What about the "destroying everything it touches" part?

ps: I am a different AC than OP.

The Ideal Gas Law determines what happens to a gas under pressure: PV = nRT

Pressure is proportional to volume, so if you compress a gas it shrinks in volume until eventually it liquefies - but the point at which it does depends on the phase diagram for that particular gas. The properties change depending on the molecules.

If you release pressure quickly then it expands very rapidly and cools down. This is a function of thermodynamics. Similarly, if you compress a gas it will heat up for the same reason. This is common to all gases. Jamming the molecules in ever tighter will increase the temperature. Your air compressor heats up when it is compressing air because of this. When you let the pressure out, the temperature of the air drops rapidly.

Where things like hydrogen are special is that you can't liquefy them by simply pressurising it. You need to cool it down too - the triple point of hydrogen is about 22 K and the critical point is about 32 K - hydrogen simply can not be a liquid at any pressure unless the temperature is between these two values (22 K is -251 C or -420 F - cryogenically cold temperatures).

Any gas under pressure is a hazard - cylinders of nitrogen are pressurised to 300 bar and if one of those ruptures you're in a world of hurt, despite the fact that nitrogen itself is inert, but we routinely handle high pressure gasses in industrial and commercial environments. You take more precautions with a hydrogen cylinder (or any cylinder of flammable gas), but the handling procedures for flammables overlap a lot with the non-flammables like nitrogen and argon.

Comment: Re:enable trim on yosemite (Score 1) 327

by jo_ham (#48399021) Attached to: Apple Disables Trim Support On 3rd Party SSDs In OS X

It's the same as reducing charging speed with non-Apple iPhone cables. The only reason is to make you buy expensive Apple parts.

Ah, yes, that pesky problem with conforming to the USB specification for safety reasons.

If you know your charger, cable and device have been tested to be safe to pull multiple amps then the device will do so (but be technically out of spec).

Charger reporting as a standard USB port? Drop back to the published spec for maximum current draw.

Sorry, you were in the middle of an Apple bash, I didn't mean to interrupt. Carry on.

Let's also ignore the fact that adding driver signing to the kernel is not somehow "solely to stop third party SSDs".


Comment: Re:Also - couldn't you actually just sign the driv (Score 1) 327

by jo_ham (#48399005) Attached to: Apple Disables Trim Support On 3rd Party SSDs In OS X

No, you couldn't, since they are Apple's drivers not yours. Apple's driver takes over handling of external drives, but it refuses to TRIM them. Previously, people worked around that by patching the driver, but signing prevents that.

Right, but drive vendors could sign a driver and supply it with the hardware, they just choose not to do so because the vast majority of bare SSDs are sold for Windows boxes where Microsoft's driver is not picky about TRIM support.

Comment: Re:Stupid, trucks cause the problem (Score 1) 554

by jo_ham (#48395157) Attached to: The Downside to Low Gas Prices

In the UK, cars are taxed on the amount of CO2 emissions generated.

Why not just tax petrol? Petrol burned is directly proportional to the amount of CO2 actually (not theoretically) emitted. This band system for efficiency is unnecessarily complicated.

Petrol is taxed, and taxed very, very heavily (the price at the pump in the UK is about 75% tax). CO2 emissions are also taxed. Driving is expensive in the UK, but it does wholly pay for the upkeep of our roads.

Comment: Re:Great! Now how about... (Score 1) 136

by jo_ham (#48356009) Attached to: Apple Releases iMessage Deregistration Utility

A utility for getting all my photos out of iPhoto, and all my data out of Time Machine?

You mean something that reads the HFS+ filesystem?

Time Machine backups are copies of your files. If you have software that can read your original files then that very same software can also open the copy of the file that Time Machine made. You do not need Time Machine's interface to read these files.

If you use Time Machine on a network drive then there's an additional step of mounting the disk image it creates, which is left as an exercise to the reader.

The major difference between bonds and bond traders is that the bonds will eventually mature.