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My resting heart rate:

hankwang Re: 0 if dead, more if alive. (68 comments)

Resting and waking heart rate are often confused

It would have been helpful if you explained the difference. Google is not very helpful for "waking heart rate", but "resting heart rate" seems to be the one that you have when you wake up in the morning.


Study Finds Link Between Artificial Sweeteners and Glucose Intolerance

hankwang Re:complete sensationalist bullshit (292 comments)

It seems that I don't have a clue what you're trying to say. In lactose-tolerant people, lactose is broken down by enzymes produced by the human body, and the reaction product is absorbed. Lactose-intolerant people don't produce that enzyme. What specifically mutated bacteria that take care of the lactose in a benign or less pleasant way are you referring to? And what statement exactly do you wish to have a reference for?


Study Finds Link Between Artificial Sweeteners and Glucose Intolerance

hankwang Re:complete sensationalist bullshit (292 comments)

What I was trying to say: if the intestine does not absorb nearly all the carbohydrates that are in the food, you will get sick. Since people don't get sick (bloating, flatulence, etc.) all the time from their normal diet, it must mean that the intestine absorbs nearly everything in their diet.


Slashdot Asks: What's In Your Home Datacenter?

hankwang Keeping it cheap and low-energy (276 comments)

I was using an old netbook (Atom N270) as a home media server, keeping it running Ubuntu Desktop 9.something. But it was too much of a pain to maintain: keeping it on mains power for a year seems to break the battery-charge-level monitoring, which makes the internal battery useless as a UPS. Too many processes insisted on writing to files every 5 minutes, which was spinning up the hard disk all the time. Also, it got uncomfortably hot with the lid closed all the time.

So I got a second-hand thin client (Via 1 GHz CPU, 1 GB internal flash drive, 1 GB RAM, gigabit ethernet) for 75 euros, installed Ubuntu Server 12.04 and a USB hard disk that has a auto spin-down feature. The 1 GiB "SSD" turned out to be too small for OS and log files, so I augmented it with a 4 GB USB thumb drive, while cursing that it is very hard to find one that performs well on lots of small writes (With 4 kB random block write tests, the throughput of most sticks is less than 0.01 MB/s). This thing takes about 13 W of power while idle (26 euros/year at our rates) and last time I looked, there are no alternatives on the market that have comparable horsepower for much less watts. The server hosts media files (MiniDLNA) and backups (snapshots) of the various computers/tablets/phones. Once or twice a year, I sync the disk with an external USB drive. If my house goes up in flames, all will be gone.

Since my media storage is mostly audio, a 1 TB drive is plenty. When I read here from people that have 40 TB of storage in NAS arrays, I wonder what they are hoarding. At 5 GB per hour of video, that's 8000 hours!

Ubuntu 12.04 server sucks for a headless server. I think it was waiting for a keypress after an unclean boot. (There was a comment on a forum of a guy who had to drive 100 miles to a datacenter to attach a keyboard and press Enter). That one was solved, but now it just hangs during filesystem checking at boot time - some bad boot-order dependency.

Network: ethernet in living room (A/V center) and work room (desktop/printer); wifi elsewhere. Visitors get the wifi password. Non-media file transfers and backups are always over ssh. (It t1urns out that the gigabit ethernet was overkill; the VIA CPU can barely saturate a 100 Mbps ethernet line, with the faster SSH cipher (arcfour).

2 days ago

Study Finds Link Between Artificial Sweeteners and Glucose Intolerance

hankwang Re:complete sensationalist bullshit (292 comments)

"your body isn't absorbing every calorie you put into it. Your body absorbs until it has what it needs"

Consider what happens if a lactose-intolerant person drinks a glass or two of milk: about 25 g of carbohydrates that their body can't absorb. It will lead to flatulence and diarrhea as a result of gut bacteria feasting on those unused calories and the inability of the body to extract water effectively from a sugar solution.

The fact that this is an abnormal response shows that the normal thing is to absorb every calorie.

2 days ago

DNA sequencing of coffee's best use:

hankwang Re:Decaf makes some sense (228 comments)

"I don't know if the plant really needs the caffeine for something else"

I've been told that it's basically an insecticide. Arabica plants contain less caffeine than robusta plants, and are therefore more sensitive to pests. Naturally caffeine-free plants would be a pain to cultivate.

about two weeks ago

ICANN Offers Fix For Domain Name Collisions

hankwang Re:Why do people use internal TLDs? (101 comments)

" I always just use split horizon DNS, and put everything under the corporate domain name, thus eliminating the problem."

I have something like that at home, a registered domain name and a portion * that was only resolvable from my lan.

Then, a few months back, I upgraded to the new Linux Mint LTS, which did all queries simultaneously to my ISP (fallback DNS) and my LAN DNS, using the first response. Sometimes the ISP was faster, resulting in 'nonexistent host' errors.

It took me an hour to figure out what was wrong and how to repair it (networkmanager.conf, disable dnsmasq). Sigh. I wasn't the first to have this problem. The devs didn't really see the problem.

about a month ago

"BadUSB" Exploit Makes Devices Turn "Evil"

hankwang Re:Do I need to be concerned about this? (205 comments)

"If anything plugged into it that had storage on it ... It also got you immediately perp-walked out of the building and freshly unemployed," Nice opportunity to get rid of a co-worker when he's away for a bathroom break...

about 1 month ago

How Stanford Engineers Created a Fictitious Compression For HBO

hankwang Re:Meh (90 comments)

"you could run it repeatedly on a data source until you were down to a single bit."

That's why you need two distinct compression algorithms. Sometimes one will work better, sometimes the other. While repeatedly compressing, don't forget to write down in which sequence you need to apply the decompression. I believe this can compress abitrary data down to zero bits, if you are patient enough.

about 2 months ago

Unintended Consequences For Traffic Safety Feature

hankwang Re:OR (579 comments)

"Advanced driving courses teach vehicle dynamics, skid control, proper reactionary techniques to road hazards, proactive hazard evaluation, and so on; they cost $300 here, and you can go all the way to $1500 for driving/racing combined classes"

That's cheap. Here in Netherlands, a regular driving license will cost you around 30 hours(*) of instruction, plus 10 or so hours to study the traffic rules in all kinds of edge cases, and about 1500 euros for instruction, theory exam, and driving exam. It doesn't include skid control.

Traffic fatalities (per capita) are a factor 3 lower in Netherlands and Germany, compared to the US.

(*) it took me more like 75 hours of instruction and considerably more money... started at later age and generally bad body coordination/multitasking....

about 3 months ago

Microsoft Suspending "Patch Tuesday" Emails

hankwang Re:It looks like a response to anti spam laws (145 comments)

From TFA (2nd link): "Your CEO, and each officer, may be fined up to $1,000,000"

Now that's refreshing! Corporate misbehavior resulting in personal fines for the management. I could think of a few more cases where that would be a good idea.

about 3 months ago

Workaholism In America Is Hurting the Economy

hankwang Re:How much reduced sleep is tied to long commutes (710 comments)

"I know people who are losing two hours of their life a day commuting each way, "

I commute well over 2 hours, 4 days per week. I don't see it as lost time. I'm reading slashdot and other sites in the train like now (plenty of space since I travel after the peak hours). In addition, 15 km of cycling per day, which is my only exercise. Fortunately the climate over here allows cycling.

But the idea of driving a car for 2 h/day horrifies me...

about 3 months ago

Latin America Exhausts IPv4 Addresses

hankwang Re:If we're not going to switch, charge per ip (197 comments)

"just start charging per ip $1 per ip per year should be sufficient"

And who should benefit from the $4B/yr revenue? The American government because ICANN is in the US?

about 3 months ago

The Major Theoretical Blunders That Held Back Progress In Modern Astronomy

hankwang Re:Earth is flat? (129 comments)

OK, replace "scientific community" by "anyone literate and educated".

There are well known midieval symbols for a sperical earth.

The notion of a spherical earth dates from around 400 B.C.

about 4 months ago

Questionable Patents From MakerBot

hankwang Re:Oblig Prior Art Question (56 comments)

When a patent is filed, I believe the USPTO keeps it confidential for a long time (a year?) until it is well along in process, to avoid revealing its secrets long before the patent is decided.

In the standard procedure, the application is kept secret for 18 months; then the application is published; the USPTO will then wait another year or so (depending on the back log it could be much more) before deciding whether or not to grant the patent. In this time slot between publication and decision, competitors could point out relevant prior art to USPTO, which would affect the decision.

In the US system, one can also file a provisional patent application and wait 12 months before filing the final application, which will essentially stretch the confidential period from 18 to 30 months. This was the case here. The final application can differ from the provisional application (errors corrected, more examples provided, reworded claims, etc.). In case of relevant prior art that was published between the provisional and final application, the provisional application will count.

about 4 months ago

Who controls the HVAC at work?

hankwang Re:Has this ever happened to you? (216 comments)

"a big portion of what you experience with regards to a temperatures bearability is based on humidity. In a very dry climate, 40C won't feel bad. In a very humid climate, you can start sweating at 16C."

In addition to that, the temperature is only sampled at one point. There can be quite a difference between temperature of supply and exhaust. I think a normal office should be ventilated at 100 m3/h

A human, with computer and lighting (250 W) can generate 8 C temperature increase. If you're unlucky with the airflow patterns, you could have people sitting in zones on both ends of that range. Moreover, between summer and winter, the walls may have different temperatures, which will affect both the local air temperatures and the energy balance of thermal radiation between warm bodies and walls.

about 4 months ago

Gaining On the US: Most Europeans To Be Overweight By 2030

hankwang Re:BMI is a lie! (329 comments)

Bah, 99.9% of the people who complain that their BMI is high because of muscles don't have that much muscles. This is Olaf Tufte, former olympic champion

Well, that's an example of a guy who, as you say, are almost pure muscle. Go and Google for "strongest man competition". Most of those guys have quite a bit more fat, but I doubt that their overal body fat percentage is that high.

about 4 months ago

USPTO Approves Amazon Patent For Taking Pictures

hankwang Re: Our patent system is totally broken (152 comments)

"he's hard pressed for time. The patent office is over worked, understaffed, and runs on quotas"

I'm actually amazed about what these examiners can achieve. Depending on what you assume for the hourly rate of an examiner, including all organizational overhead, they have 4 to 8 hours to read and understand the application, search prior art, and write their response.

I sometimes have to proofread draft patent applications of my own inventions, and it takes me typically 4 hours to review those (check that what the attorney wrote is a correct description of what I think the invention is). They turn my 2-page description of an idea into 25 pages of dense legalese, but at least I believe that I should have some advantage in understanding the idea, compared to the examiner.

about 4 months ago

Really, Why Are Smartphones Still Tied To Contracts?

hankwang Re: Simple: So people will buy them. (482 comments)

You live in Europe. Where exactly? Europe includes Ukraine, part of Russia, and a few other non-EU countries. Even within the EU, it can vary.

"you have always been able to slap your SIM card into any phone you buy since 1995 or so. ... In Europe you always bought your phone from an electronics shop and SIM from a carrier."

Well, it has always been an option, but in Netherlands and various places where I've been on holiday, it's not what all consumers opt for. Plenty of people who get a new smartphone every 2 years. A phone bought together with a SIM often has a SIM lock, which means that it will only work with one carrier. Most shops here do not offer iPhones without contract.

In Netherlands, it seems that the 3G capacity is saturated. At least, data plans are expensive, especially with pay-as-you-go and MVNOs. MVNOs are only competitive as long as you stay here. Roaming rates tend to be the EU maximum, whereas the main providers often have better deals.

about 5 months ago

The Fall and Rise of Larry Page

hankwang Re:Amazing discovery in this article (99 comments)

i think both of Google's founders were smart enough to understand they were GEEKS and not try to run the business themselves. So they went out and got Eric Schmidt

TFA explains that Page was not very cooperative to get a mature CEO. Essentially, he had Schmidt shoved through his throat:

Page had never been behind hiring [Schmidt] -- or any CEO, for that matter. Google's investors made him do it. (...) And for a long time, Larry Page was very unhappy.

about 5 months ago



EU fines TV makers for 1.47 billion euro

hankwang hankwang writes  |  about 2 years ago

hankwang (413283) writes "The European commission fined a number manufacturers for pricing fixing of cathode ray tubes in the period between 1996 and 2005. The total fine was EUR 1.47 billion (USD 1.92 billion), for Philips, LG Electronics, Samsung SDI, and three other firms. According to the European Commission: "For almost 10 years, the cartelists carried out the most harmful anti-competitive practices including price fixing, market sharing, customer allocation, capacity and output coordination and exchanges of commercial sensitive information. The cartelists also monitored the implementation, including auditing compliance with the capacity restrictions by plant visits in the case of the computer monitor tubes cartel. "

Other news sources:"

Link to Original Source

One million web pages attacked by lilupophilupop S

hankwang hankwang writes  |  more than 2 years ago

hankwang (413283) writes "The Internet Storm Center reported that one million web pages have been attacked by a the Lilupophilupop SQL injection and contain a malicious javascript link. Affected sites can be found using a a Google search query. See also the technical details of the SQL injection. The attack is directed to sites running ASP or ColdFusion with an MSSQL back end. The payload of the javascript leads, via redirects and obfuscated javascript, to a fake download page for Adobe Flash and antivirus software."

Dutch hotels must register as ISPs

hankwang hankwang writes  |  more than 3 years ago

hankwang (413283) writes "The Dutch telecommunications authority OPTA has announced that Dutch hotels must register as internet providers (Original version in Dutch) because that is what they formally are according to Dutch laws. It is well possible that once hotels are officially internet providers, they will also have to abide the European regulations on data retention and make efforts to link email headers and other data traffic to individual hotel guests. Could this also happen in other European countries? This is probably not likely to lead to a more widespread adoption of free WiFi services in hotels."
Link to Original Source

Online-Banking Trojan Stole Money From Belgians

hankwang hankwang writes  |  more than 4 years ago

hankwang (413283) writes "The Belgian authorities uncovered an international network of online banking fraud, which has been going on since 2007. (Story in Dutch and Google translation). The fraud targeted customers of several major banks, which used supposedly secure two-factor systems that required the customer to generate authorization codes from transaction information (random code and amount or recipient's account number) that is manually keyed into a cryptographic device (Flash demo from one of the banks, Manufacturer's website). Trojan horses that were planted onto the victim's computer would generate a fake error message and requested to re-enter authorization codes. This way, amounts up to €4,000 were transferred to foreign bank accounts.

The worrying part is that many cases were never reported to the police, with the bank preferring to refund the money to the victim rather than risking their reputation. The extent of this type of fraud is unclear."

Link to Original Source

Doubled yield for bio-fuel from waste

hankwang hankwang writes  |  more than 4 years ago

hankwang (413283) writes "Dutch chemical company DSM announced a new process for production of ethanol from agricultural waste. Most bio-fuel ethanol now is produced from food crops such as corn and sugar cane. Ethanol produced from cellulose would use waste products such as wood chips, citrus peel, and straw. The new process is claimed to increase the yield by a factor 2 compared to existing processes, thanks to new enzymes and special yeast strains."
Link to Original Source

Microsoft's ethical guidelines

hankwang hankwang writes  |  more than 5 years ago

hankwang writes "Did you know that Microsoft has ethical guidelines? Think of how "Microsoft did not make any payments to foreign government officials" while lobbying for OOXML, and how "Microsoft conducts its business in compliance with laws to designed to promote fair competition" every time they suppressed competitors. In their Corporate Citizenship sction, they discuss how the customer-focused approach creates products that work well with those of competitors and open-source solutions. So all the reverse-engineering by Samba and developers wasn't really necessary. It makes one wonder how people got all those weird ideas about the ethical company Microsoft?"

Zero-day exploit in PDF with Adobe Reader

hankwang hankwang writes  |  more than 6 years ago

hankwang (413283) writes "Security researcher Petko Petkov, who is known for his recent discovery of a vulnerability with Quicktime in Firefox, claims to have discovered an exploit that allows arbitrary code execution when a maliciously crafted PDF document is opened in any version of Adobe Reader. Petkov did not disclose any technical details other than a video, but claims on his blog that Adobe has acknowledged the vulnerability. If this exploit goes wild, it could cause some serious problems, as PDFs are usually automatically opened from web browsers and widely used and trusted by corporate users. See also Petkov's original blog post [Coral cache]."
Link to Original Source


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