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Submission + - Scientists identify possible new substance with highest melting point

JoshuaZ writes: "Researchers from Brown University have tentatively identified an alloy of hafnium, nitrogen and carbon as having an expected melting point of about 7,460 degrees Fahrenheit (4120 Celsius). This exceeds the previous record breaker tantalum hafnium carbide which melts at 7,128 F (3942 C) and had stood as the record holder for almost a century. However, at this point, the record setter is still hypothetical, based on simulations. The new record has not yet been confirmed by experiment. http://journals.aps.org/prb/abstract/10.1103/PhysRevB.92.020104 is the actual article while http://www.washingtonpost.com/news/speaking-of-science/wp/2015/07/28/behold-a-new-record-for-the-worlds-highest-melting-point/ is a lay summary. If the simulations turn out to be correct, the new alloy may be useful in parts like jet engines, and the door will be opened to using similar simulations to search for substances with even higher melting points or with other exotic properties.

Comment Re:SD Card? (Score 0) 94 94

Right, that's why they're selling an unlocked top-shelf phone for $329, because they're all about making as much profit as possible and they really want to control exactly how you use the device.

Do you deny that the OnePlus One 64GB cost $50 more than its $16GB counterpart, while holding exactly the same specifications aside from an extra 48GB of NAND?

You seem to be using "since this, thus unrelated" logic: the phone is a low-cost phone, therefor all parts inside must not be overpriced. More directly, you're using a fallacy of division: since the phone itself is not an over-priced piece of shit, each part inside must carry no inflation of cost. The phone is cheap for its hardware, therefor the inclusion of $16 more hardware at a price of $50 additional simply must be an established falsehood--even though we can clearly demonstrate that the hardware does indeed cost less than $50.

you think they didn't include a removable SD card because of some profit motive. I bet its the other way, I bet they're trying to keep costs down.

An SD slot with working controller costs $1.66, including all the voltage regulators, capacitors, and resistors to support the interface. You may need a dedicated $1.30 Atmel 8-bit microcontroller to control it, or you can pipe it into an existing microcontroller on your board (truth be told, a dedicated microcontroller probably won't save you the bus pins). Additional NAND costs $16, and they charge $50 for it.

Comment Re:Is this not the 21st century? (Score 1) 94 94

Wireless power is excessively inefficient. Current projections suggest cell phones use 10% of the world's energy per year; wireless power is 10% as efficient as direct contact charging, meaning the total worldwide energy draw required for wireless charging would be just about 100% of the world's current energy consumption.

How about putting your phone right side up in your pocket so when you take it out you can see your program right side up.

When reaching down into your pocket, your arm is oriented downward, wrist spatially above your hand. When you raise your hand up to your face, your wrist is spatially below your hand. Through the movement, you rotate the phone 180 degrees: the part of your phone at the bottom of your pocket is the part of your phone pointed upward when raised to view. This is largely because your hip is below your elbow and shoulder, while your face is above your elbow and shoulder.

I put my phone in my pocket while listening on headphones. Without a bottom jack, I must rotate it in my hand, then place it in my pocket; then, on retrieval, I must rotate it back. Each rotation is a complex free movement with an exceedingly high chance of dropping the phone, or a two-handed affair which carries a low but significant chance of dropping the phone. A bottom jack means the phone leaves and returns to my pocket with a firm grip upon it, due to already holding it firmly or being unable to remove it from my pocket without holding it firmly.

I suppose you could put a bulky, over-sized, insufficient case on your phone, making it 3 times thicker and more ungainly to handle--and still prone to damage when dropped.

Comment Re:The argument is "leaky" at best too (Score 1) 175 175

Not materially different from your immune system killing off the weaker individuals. A few stronger individuals may survive, and then what has your immune system done? Selected for a stronger pathogen.

I remember a paper from a few years ago which concluded that this was basically how we wound up with deadly diseases in the first place -- being the ones that throughout history have managed to be stronger than the host's immune system.

Vaccine simply cuts out the stage where lots and lots of hosts get sick or die.

Comment Re:No Compromises (Score 1) 94 94

My OnePlus One has NFC, but the OnePlus 2 doesn't. I used NFC to transfer my Google account settings, which didn't really transfer much. From what I can find, NFC is incredibly difficult to configure and use--sending an MMC to transfer a picture or video is a lot faster and easier.

Wireless charging is also a waste. You have to be right up with it, and it uses 10 times as much power to provide as much charge to the phone. Likewise, quick charging, while nice, just doesn't make much sense when every car with bluetooth has a USB port, and every car add-on to connect a phone to a non-bluetooth radio has a charge port for your phone, and both have dash controls so your phone isn't hampered by being cabled. While I find it tough to actually get a 100% charge on my OnePlus One, I've had trouble getting it under 80% as well--even with just charging it for an hour to 90%-95% each night.

I'm not sure why front speakers are supposed to be any better than bottom speakers, although I see quite well why a bottom headphone jack is far superior to a top headphone jack. On the other hand, they could have gone hardware buttons or gone screen area for those bottom buttons, instead of hardware touch buttons.

The big drawbacks are really no slide-out keyboard and no SD slot.

Comment Re:Already famous (Score 1) 246 246

Wait, so besides the obvious defamation, conspiracy, and direct attack on a large business not to simply comment on their business in earnest, but to negatively affect their stock price by manufactured slander and libel, this attorney general is also guilty of obstruction of justice?

Comment (Shrug) IÂll believe it when I see it. (Score 1) 92 92

IÂve been reading "Winklevoss Twins close to launching bitcoin ETF" stories since mid-2013. It has always just about cleared the last regulatory hurdle and it is always going to launch in a month or two and it is always "still on track." Slashdot just seems to be an amplifier of the latest publicity blitz.

OK, fine. Maybe it will happen and maybe it won't. No particular reason I know to pay attention to it until it does.

Funniest thing I've read about it appeared in January, 2015: "We believe that anyone who believes that gold is an important asset to hold in their portfolio should seriously consider adding bitcoin to their portfolio. When we consider all of the qualities that make money money, Bitcoin when compared to gold matches or surpasses gold in every measure of money. This is why we and others call bitcoin 'gold 2.0' or 'digital gold,' Winklevoss explained in his email."

If you have to ask how much it is, you can't afford it.

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