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Comment: Re:Price (Score 1) 265

by Znork (#48462983) Attached to: How Intel and Micron May Finally Kill the Hard Disk Drive

If you need a 20-30ms initial access time, and then a constant transfer rate of 20-50MB/sec, that makes tape completely useless as it can't fulfill initial access time, and it makes SSD pointless as it overdelivers without added value for everything above that. IE, for bulk data that gets streamed, such as basically any large datasets like video, price per TB is the factor that overshadows anything else.

IOPS is of course hugely important for the average utter crap database written by an intern that devolves into 512byte random access read/write patterns, which seems to be what 'enterprise solution' means these days. But the disasterous consequences of that usually keep the data sets into whatever fits on a comparatively small and cheap SSD as anything beyond basically using processor L1 cache will make the application too slow to use.

Comment: Re:Really? (Score 1) 265

by Znork (#48462895) Attached to: How Intel and Micron May Finally Kill the Hard Disk Drive

Indeed. And when reaching larger capacities, it's quite likely that you're dealing with largely sequentially accessed streamed data, ie, video, where you have a maximum needed transfer rate which the HDD is entirely capable of fulfilling which means the SSD gives zero added value for the price premium.

Comment: Fusion power applications? (Score 1) 25

by Ungrounded Lightning (#48462139) Attached to: NASA To Deploy Four Spacecraft To Study Magnetic Reconnection

It will be interesting to see whether this research on the phenomenon in the large scale produces insights useful at the smaller scale of fusion plasma confinement.

In case it's not clear, magnetic reconnection is a phenomenon of magnetic field/plasma interaction. (Without the plasma and its currents (or extreme accelerations like those around black holes) the magnetic field wouldn't be simultaneously twisted up and bent around so it can reconnect differently.

I see two ways this might apply to plasma confinement in fusion systems:
  * It may give insight into the details of plasma instabilities and lead to ways to suppress them - enough for a practical reactor.
  * It might lead to a way to use the phenomenon deliberately, to produce a (probably pulsed) past-breakeven plasma confinement, along the lines of Dense Plasma Focus.

Comment: More than half were minority owned, too. (Score 1) 981

by Ungrounded Lightning (#48461993) Attached to: Officer Not Charged In Michael Brown Shooting

The hit is taken by the store owners and their landlords. [Insurance usually has escape clauses for riots.]

Just heard on the news that more than half of the stores destroyed last night in Fergusun were minority owned, too. (I think it was actually "black owned" but I'm not sure.)

IMHO the main point of the burning is so that, once the stores have been looted, the evidence of who did it is largely destroyed. Video survelience tapes, fingerprints, serial number records, ...

Comment: Re:It boils down to energy storage costs (Score 1) 477

by LWATCDR (#48460879) Attached to: Two Google Engineers Say Renewables Can't Cure Climate Change

And you just proved that you have no understanding of this issue.
Do you have any idea how much oil is used for electrical generation in the US?
Less than 2% of all electrical power comes from Oil. Far less than wind or solar. It is only used really in remote locations like Hawaii where gas and coal are not practical.

Comment: Re:STEM is for suckers.. at least now. (Score 1) 374

by rwa2 (#48459987) Attached to: Researchers Say the Tech Worker Shortage Doesn't Really Exist

Yes, business and finance can make more money than engineers. It's much easier to rake in the profits by convincing people to pay 2x - 4x more for crap than it is to make the crap 5% cheaper. Still, I'd rather do the engineering work. $100k+ is way more than enough to lead a happy life. My financial advisors look way the fuck stressed out.

OTOH I don't think the conventional wisdom has changed much from when I graduated.... companies still seem to prefer to hire STEM engineers, and then put them through business school to make managers and, er, "financial manufacturers" and whatnot out of them. The math is all the same, it's easier to train them, they're more ethical and loyal, so they won't steal from you and don't mind if you work them like dogs. Pure businessheads are probably going to be looking out for their own interests first and will take advantage of the company as much as they can get away with.

Comment: Re:STEM is for suckers.. at least now. (Score 1) 374

by rwa2 (#48459907) Attached to: Researchers Say the Tech Worker Shortage Doesn't Really Exist

Nice quote:
"You know what they do with engineers when they turn 40? They take them out and shoot them."

From the movie "Primer" see http://en.wikiquote.org/wiki/P...

Yeah, that's one of my favorite movies. And it had a production value of what, $10k?
http://www.explainxkcd.com/wik...

Comment: Re:It boils down to energy storage costs (Score 2) 477

by Daniel_Staal (#48459315) Attached to: Two Google Engineers Say Renewables Can't Cure Climate Change

The second is a fair point: the main problem with coal and other fossil fuels is the external cost exported to society at large. (CO2 and other emissions.) If you could factor in that cost - and make the generators pay it - the cost of electricity from fossil fuels would go way up. (And, if they can afford to pay it - actually clean up their emissions to the point where they aren't harmful to the environment - then we don't actually have a problem with fossil fuels, except for the limited supply.)

Comment: Re:Less relevant than an old Popular Mechanics (Score 1) 137

by LWATCDR (#48458275) Attached to: Here's What Your Car Could Look Like In 2030

The problem I have is the "resources will decrease" part of it. Iron/steel, aluminum, and glass are just about infinitely recyclable. Power if the Lockheed High beta, the Polywell and or Thorium molten salt reactors go into production will also be even more available than now. Frankly it is just as likely we will live in a world with greater abundance than today.
 

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