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Businesses

Ask Nathan Myhrvold What You Will, Live Q&A April 3 124

He was the CTO at Microsoft, is an accomplished nature and wildlife photographer, and his cookbook Modernist Cuisine won a James Beard award, but Nathan Myhrvold is probably best known for being co-founder and CEO of Intellectual Ventures. In 2009 the company launched a prototyping and research laboratory called Intellectual Ventures Lab. The lab has hired many prominent scientists to work on a variety of inventions including safer nuclear reactor designs and vaccine research. Under Myhrvold's direction Intellectual Ventures has purchased 40,000 patents and applications and internally developed over 2000 inventions, but not without controversy. Nathan has agreed to take some time to answer your questions but please limit yourself to one question per post. As a bonus on Wed. April 3, Nathan will be doing a live Q&A from 12-12:30pm PDT.

Comment Re:Lighting Choices Are Not Extraordinary (Score 2, Informative) 186

I picked lighting because it was the most-obvious waste of words in the article for the sake of green spin.

The "geothermal" mentioned in TFS (who reads articles, really?) is likely a ground source heat pump rather than a subterranean heat source/sink.
I like the efficiency numbers of such heat pumps, but am concerned about diminishing returns over time in areas with unbalanced heating and cooling seasons.
Evanston, IL is close to Chicago - 6450 HDD65, 750 CDD65 .
Assuming the target temperature is 65F (although 70-75 is more realistic in the US) and ignoring heat generation within the space (minimized by using "green" electronics and lighting), the pump could be pulling heat from the ground about 8 times as often as it puts heat into the ground.
This would tend to cool that ground over time, barring external influences.
The well field in what should be a heat source will be warmer than the ambient air on cool days at first, then on cold days after a few cycles, then only on the coldest days.
Once that has happened, they may as well have chosen an air-source heat pump (current models meet their design heat output to around 4F without significant efficiency loss) and foregone the cost of wells.

"Ultra-high efficiency refrigeration" sounds pretty cool.
I was under the impression that regulation of refrigerants to minimize ozone depletion (while in turn increasing global warming potential, but that's a different conversation) led to refrigerant cocktails operating at higher pressures so that their cycles would be useful in temperature ranges suitable for cooling food.
Do they have air-source heat inverters with food coolers as a source and HVAC as a sink?
I almost want to read TFA...

Comment Lighting Choices Are Not Extraordinary (Score 4, Interesting) 186

Daylight harvesting is a nasty misnomer - it really just means turning the artificial light down when natural light makes the space acceptably-bright. This is why Walmart stores built in the past two decades have skylights.
The 2012 IECC requires daylight harvesting or separate switching for daylight zones; complying with new codes is hardly a newsworthy achievement.

LED lighting for commercial spaces just recently reached a point where lumen output, specifically illuminance at the target work plane, can equal that of fluorescent for the same power input.
With a cost roughly double that of fluorescent fixtures, LED fixtures' lamp life allows the owner to spend less on maintenance labor, with a payback on the order of 2-10 years. A company as big as Walgreens would be foolish to use anything other than LED unless they expect to go broke before reaching their ROI.

I like what these guys are doing, but the PR spin is a bit much.

Comment Re:Hmmmm .... (Score 1) 152

Lower res pictures with bigger pixels?

Yes. My 20D with 8 megapixels takes much higher quality pictures that any known cell phone, or any point and shoot with 50% more nominal pixels. It's not just the vastly better optics, it's also the quality of the sensor.

Comment Re:Non removable battery, no memory card slot. (Score 1) 152

I have never had any issues with any Li-ion batteries as long as they are properly maintained. That means do not let it run below 20% (yes, it means stop yakking on the phone and stop playing games on the phone if it is that low).

In which universe does that qualify as acceptable usability for a consumer device? Especially considering that typical high end smart phones don't even last a day, just running maps or other moderate loads.

Comment Re:Non removable battery, no memory card slot. (Score 1) 152

SD cards are going away on phones

Sounds like wishful thinking from someone who doesn't have one. SD cards are plenty fast enough for me. I would far rather have an SD card than be forced to futz around with USB cables, dongles, adapters etc. I have some Android devices with SD card and some without. I have a strong preference for the devices with SD cards. That's one of the big annoyances of the Nexus 4, no SD card. Plus, needing a special tool or a pin (problematic on an airplane) to get the SIM card out is just plain idiotic. But I digress. I note that Samsung has begun to see the error of their ways in that regard.

Facebook

Facebook Employees' Laptops Compromised; User Data Believed Safe 75

Trailrunner7 writes "Laptops belonging to several Facebook employees were compromised recently and infected with malware that the company said was installed through the use of a Java zero-day exploit that bypassed the software's sandbox. Facebook claims that no user data was affected by the attack and says that it has been working with law enforcement to investigate the attack, which also affected other unnamed companies. Facebook officials did not identify the specific kind of malware that the attackers installed on the compromised laptops, but said that the employee's machines were infected when they visited a mobile developer Web site that was hosting the Java exploit. When the employees visited the site, the exploit attacked a zero-day vulnerability in Java that was able to bypass the software's sandbox and enable the attackers to install malware. The company said it reported the vulnerability to Oracle, which then patched the Java bug on Feb. 1."
Linux

Moving the Linux Kernel Console To User-Space 311

jones_supa sends this quote from Phoronix: "David Herrmann has provided an update on his ambitious initiative to kill off the Linux kernel console. Herrmann has long been working on making the Linux kernel CONFIG_VT option unnecessary for providing a Linux console by punting it off to user-space. The Linux kernel VT console hasn't been changed much in the past two decades and Herrmann is hoping to see it replaced with a user-space solution he's been developing that would allow for multi-seat support, a hardware-accelerated console, full internalization, and other features."
Microsoft

Microsoft Surface Pro Reviews Arrive 320

The release date is approaching for Microsoft's Surface Pro tablet, and reviews for the new device have started appearing. The Surface Pro differs from the Surface in that it runs a full version of Windows 8 Pro, rather than the tablet-centric Windows RT. It also has much beefier hardware specs: 4GB RAM, an Intel Core i5 CPU, and a full HD display with 10-point multitouch. Ars describes it as having the expected good performance at the expected costs of heat, noise, and battery life. "This is not an all-day machine. Surface RT probably is. But Surface Pro is not." The review praises the screen and the stylus, but points out some odd scaling issues as well. The Verge's review also mentions the scaling, and notes the strangeness of dealing with issues inherent to a Windows desktop OS — like antivirus — on a tablet. BGR looks at the big picture, calling the Surface Pro Microsoft's "declaration of war" on its hardware partners. All three reviews dwell on how the Surface Pro exists at the intersection of laptop and tablet, and doesn't quite fulfill either role. Ars says, "From the tablet perspective, Surface Pro is not acceptable. It gets too hot for a hand-held device, its battery life is woefully inadequate, and it's too thick and heavy to be comfortable to hand hold for long sessions. ... From a laptop perspective, Surface Pro falls down too. The traditional laptop has a stiff hinge to hold the screen at an angle of your choosing. ... In practice, the Surface RT and Surface Pro have a bigger footprint on my lap even than my old 15-inch MacBook Pro. And if I move a little, whomp, the screen drops off the back of my knees and folds out of sight." The Verge adds, "The real dealbreaker for me was that it's just unusable in my most common position — sitting on my couch, feet on the coffee table, with the computer on my lap."

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