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Microsoft Surface Drowning?

George_Ou Re:It's a still a nice PC. (337 comments)

There's up to a $150 student discount for the Surface 3.

about a month and a half ago
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Buying New Commercial IT Hardware Isn't Always Worthwhile (Video)

George_Ou Interviewer is extremely ignorant on power (92 comments)

At one point the interviewer asks "how much money you gonna save on electricity for 50 computers, $50/year"? It's clear he's never even attempted to do the math. An extra 100 watts in California is going to cost $314.91 per year at the typical rate (above baseline) of 35.949 cents per year. That's just the savings on one computer system much less 50 computers.

about a month ago
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ESA Shows Off Quadcopter Landing Concept For Mars Rovers

George_Ou Re:0.74% atmospheric pressure and trace oxygen lev (104 comments)

Do you have a hypobaric chamber large enough to test a helicopter in flight? Even if you use a quarter scale model, you need a pretty large chamber. Furthermore a scale model doesn't behave the same as a full size unit.

about 2 months ago
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ESA Shows Off Quadcopter Landing Concept For Mars Rovers

George_Ou 0.74% atmospheric pressure and trace oxygen levels (104 comments)

To properly test a prototype, you would need to fly a prototype helicopter (probably with very large rotor and very powerful turbine) to 33,000 meters altitude on Earth to test equivalent atmospheric pressures. The current altitude record for helicopters is only 12,442 meters.

There's another major problem posed by Mars. 96% of the atmosphere is comprised of CO2 and there is only trace amounts of oxygen. That means not only would you have to carry fuel, but you would need to carry your own oxidizer as well which adds a lot of weight.

about 2 months ago
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Cisco Opposes Net Neutrality

George_Ou Cisco is only describing the IETF standard (337 comments)

"A July 1999 IETF specification (RFC 2638) discusses paid prioritization by saying: “It is expected that premium traffic would be allocated a small percentage of the total network capacity, but that it would be priced much higher.” Another specification (RFC 2475) published half a year earlier says that setting different priorities for packets will “accommodate heterogeneous application requirements and user expectations” and “permit differentiated pricing of Internet service.” (An RFC is a policy document, often accepted as standards, published by the IETF.)"

I would also add that the abstract of RFC 2474 says:

“Differentiated services enhancements to the Internet protocol are intended to enable scalable service discrimination in the Internet

http://www.digitalsociety.org/...

about 3 months ago
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New MU-MIMO Standard Could Allow For Gigabit WiFi Throughput

George_Ou Re:The title is a bit misleading (32 comments)

Capacity matters a lot in Wi-Fi as well as cellular data. Very rarely will you see mobile devices be able to leverage 2x MIMO or better because they only have one antenna. Capacity is effective peak performance for most situations. Peak throughput is great for marketing benchmarks and occasionally real life performance when it comes to wireless bridging.

about 5 months ago
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New MU-MIMO Standard Could Allow For Gigabit WiFi Throughput

George_Ou Re:The title is a bit misleading (32 comments)

MU-MIMO does effectively offer higher speeds than SU-MIMO in practice. Since most client devices are single antenna devices and only a few that are dual-antenna, MU-MIMO effectively increases the per-client throughput by improving overall capacity. If four single-antenna clients can be concurrently served by a MU-MIMO access point with 4 antennas, each client can have up to 4 times more throughput than the same 4 clients being served by a 4-antenna SU-MIMO access point. The SU-MIMO 4-antenna AP can't speed up operation for a single 1-antenna client.

about 6 months ago
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Apple Starts Blocking Unauthorized Lightning Cables With iOS 7

George_Ou Re: Official cable doesn't stop dangerous chargers (663 comments)

I said the cables are overpriced, way overpriced I might add. It's just a freaking cable. I said the chargers at $20 aren't *that* overpriced, though they're still overpriced somewhat. The chargers that Apple sells are actually one of the highest quality chargers on the market according to this guy's tests (http://www.righto.com/2012/10/a-dozen-usb-chargers-in-lab-apple-is.html) so they're actually worth close to $20.

So my point is that if Apple cared about safety, they'd lock out 3rd party chargers rather than the 3rd party cables. It's the charger that's dangerous when it sends 110V or 220V AC down the USB cable.

1 year,23 hours
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Apple Starts Blocking Unauthorized Lightning Cables With iOS 7

George_Ou Official cable doesn't stop dangerous chargers (663 comments)

A person can still use an overpriced official cable from Apple but used a dangerous charger and the dangerous conductive surface of the iPhone. The cable isn't the cause of the safety issue but the cable is what's overpriced so iOS 7 is forcing you to buy the overpriced cables. The official Apple chargers aren't *that* overpriced.

1 year,1 day
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Math and Science Popular With Students Until They Realize They're Hard

George_Ou Re:like anything else.. (580 comments)

Same here. High School AP classes were just too easy compared to what they offer at the junior college. And what they offer at the junior college for the same subject is too easy compared to a major university. It doesn't feel good to get that rude awakening but the people with character admit their shortcomings and then work to overcome them.

The problem in recent decades is that we're too focused on building up the self-esteem of our youngsters. It gives them a false sense of what the real world is like and we're failing to prepare them for the real world. They think everything should be easy and effortless when they should be challenged.

about a year ago
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Scientists Explain Why Chairman of House Committee On Science Is Wrong

George_Ou Re:Systematic corruption in the AGW movement (476 comments)

You didn't address a single issue I raised that specifically criticized the actions of Mann and the UN IPCC. You use words like "denier" to attack the opposition. Your ad hominem response is unfortunately all too typical of the AGW movement. And yes I do criticize the AGW movement based on the actions of Mann and the UN IPCC because they are central figures in the AGW movement. And when Mann and the IPCC display blatant disregard for the scientific method, it calls into question the AGW movement which heavily relies on Mann's graph and the UN IPCC.

about a year ago
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Scientists Explain Why Chairman of House Committee On Science Is Wrong

George_Ou Systematic corruption in the AGW movement (476 comments)

Even though I'm willing to accept the idea that man probably has caused some of the warming over the last 150 years, any honest scientist will acknowledge that we can't be sure how large of a role man plays when we consider the fact that we were coming out of a little ice age. It's also disputable that we are facing "unprecedented" warming because recent studies (http://wattsupwiththat.com/2013/04/11/evidence-for-a-global-medieval-warm-period/) show that there was significant worldwide warming during the medieval warming period.

In general, it's good to let scientific "consensus" drive policy. But when the major scientific organizations try to shut down all discussion and explain "the debate is over" and start drawing firm conclusions on something as complex as climate science, it makes me suspicious. Then when the AGW advocates start blatantly lying about how there is supposedly more incidents of extremely destructive weather and fire, it makes me extremely suspicious. When the UN IPCC knowingly makes up a story about the Himalayas melting in a few decades even though they know it's based on a single *opinion* from an activist making comments in the WWF magazine, it tells me that there is a systemic corruption of science when it comes to the issue of global warming.

And when I see proof that Mann et al is cherry picking data in a nontransparent manner and most of the "concensus" is based on that cherry picked data, this so called "concensus" no longer holds any credibility. http://www.youtube.com/watch?v=VbR0EPWgkEI

about a year ago
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AMD's Hondo Chip 'A Windows 8 Product'

George_Ou Re:x86 or ARM? (229 comments)

AMD might attempt some really bulky overweight tablets that have to be shut down rather than something that behaves like an always on iPad or smartphone. Then again, this applies to Intel's Ivy Bridge parts because they can't do "Connected Standby" either. A high-performance SoC with Connected Standby won't happen for Intel until Haswell in 2013. AMD on the other hand has nothing announced for 2012 or 2013 that does Connected Standby.

about 2 years ago
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AMD's Hondo Chip 'A Windows 8 Product'

George_Ou Re:x86 or ARM? (229 comments)

Hondo is a Brazo based "APU" so it's definitely x86. But unlike Intel Clover Trail, AMD Hondo isn't really a tablet chip because it fundamentally lacks "Connected Standby" capability in Windows 8. That means it won't do 30 days of standby in an on state nor is it compatible of meeting the 300 millisecond screen-on requirement. Moreover, Hondo is a 4.9W TDP part while Intel Clover Trail is a 1.7W TDP part.

about 2 years ago
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Ask Slashdot: Keeping Personal Tech Cool In Extreme Heat?

George_Ou I see people take their smartphone into sauna (165 comments)

I see people take their smartphone into the Sauna all the time where it's 200F. Then they shove it in their pocket which is soaking wet from the sweat or from the steam room they exited. Apparently nobody bothered to explain that these are outside of safe operating parameters.

about 2 years ago
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FAA Denies Vulnerabilities In New Air Traffic Control System

George_Ou Re:I wrote about ADS-B homing drones last year (141 comments)

Even if that's possible, it's not nearly as simple as an autonomous standalone payload getting readings fed to it by the jetliner with 3 meter accuracy of position and speed and direction information.

about 2 years ago
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FAA Denies Vulnerabilities In New Air Traffic Control System

George_Ou I wrote about ADS-B homing drones last year (141 comments)

I wrote about ADS-B homing drones last year and why jetliners (high value targets) should avoid beacon accuracy of Navigation Accuracy Category (NAC) level 7 (less than 93 meter accuracy) or better. It would be relatively easy to fly a piston powered model plane controlled by an iPod Touch connected to a GPS with 3-meter accuracy in front of the path of a jetliner carrying a small payload. The model plane wouldn't need to be fast because it would be the jetliner that runs into the model plane. http://www.hightechforum.org/new-airline-navigation-system-easy-target-for-terrorists/

about 2 years ago
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New Spark Tablet To Come Loaded With KDE's Active Plasma Interface

George_Ou Re:To bad the specs once again suck donkey balls (114 comments)

Specs matter to those of us who neither want to waste time or money. We're not going to buy a device for the sake of being able to have a Linux tablet. There will be $250 quad-core 7" android tablets with beautiful IPS multitouch panels and 1080P megapixel cameras. This Aseigo Linux tablet has comparable specs to a $99 7" Android tablet on the market today.

more than 2 years ago
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Don't Worry About Global Warming, Say 16 Scientists in the WSJ

George_Ou Celsius is just as arbitrary as Fahrenheit (1367 comments)

Hell, even Kelvins are arbitrary to some extent but the size of the unit based on the gap between frozen and boiling water at "Standard Temperature and Pressure". Celsius doesn't even accurately reflect heat and plenty of smart people who should know better routinely believe that 32C is twice as hot as 16C when it's actually 305.15C to be twice as hot.

Metric system for geometric measurements do have advantages for humans who evolved with 10 fingers and decided to use a number system with base 10. But even then, carpenters tell me that 12 is a much nicer split than 10 because it is divisible four ways while 10 is only divisible in two ways.

more than 2 years ago
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Google Fiber Work Hung Up In Kansas City

George_Ou Re:Corruption. (153 comments)

Do you honestly think I'm making up the cost of underground fiber? What you're describing isn't even all that clear and it sounds like there is already conduit in place to pull fiber. If there is no conduit, you have to dig and build conduit.

Moreover, your copper is no different than our copper and the same physics applies. The same throughput of VDSL2 applies everywhere in the world. The difference is that in addition to the copper phone wires, we have a lot more cable coax competition in addition to a whole lot more fiber to the home.

more than 2 years ago

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