Things that I have learned from spam…

Should we be sorry that spam is filtered out so assiduously by Gmail, et al? Here are some recent items…

Rita from Jiangxi Pingxiang Xingda Aquarium Filter factory gives me these prices:

  • ceramic ring: Fob guangzhou $694.5/ton
  • bacterial house:Fob guangzhou $1782.4/ton

You can buy the rings from Eheim for $43 per kilo (Amazon). That’s a 62:1 ratio of retail:factory.

Grace Morgan, an Online Marketing Executive, asks

Are you interested in acquiring a contact database of Ophthalmologists and Optometrists along with their Emails for your marketing projects?

Some of the Physicians specialties available in our database: Anesthesiologists, Cardiologist, Chiropractors, Dentist, Dermatologist, Emergency Medicine physicians, Family Practice physicians, Gastroenterologist, Hematologists, Internal Medicine physicians, Neurologist, Obstetrics/Gynecologists, Oncologist, Ophthalmologist, Optometrist, Orthopedists, Psychiatrist, Psychologist, Radiologist, etc.

Combined with the information in “Child Support Litigation without a Marriage” and residency in Massachusetts, Wisconsin, or a similarly-oriented state, this could prove lucrative indeed…

Bad news for traditional media: Offers-to-subscribe emails from both New Yorker and the Boston Globe were marked by Google as “spam”.

“Obama” is tacked on to various proposals under which the recipient can get cash without working, e.g., “President Obama’s Student Forgiveness Program” in which “Students and (Former Students) are being forgiven on balances owed”.

 

Readers: What are the best spam emails that you have received lately?

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Samsung Galaxy S7 real-world battery life

I was pretty enthusiastic about the Samsung Galaxy S7 (review based on early experience). And it is a lot of fun to awe retail clerks with the Samsung Pay magic: “Sir, I’m telling you that we don’t have the Apple Pay hardware and it is not going to work” while looking at me instead of at the POS terminal screen, which would have shown them that the transaction had already been completed. However, battery life seemed almost unusable. I removed Facebook and Facebook Messenger and that helped a bit.

Today I did a formal test. The phone came off its wireless charging station around 7:30 am. I managed the following:

  • 10 phone calls totaling approximately 1.5 hours
  • a 24-minute Skype session
  • taking 48 still photos
  • capturing 4 videos in 1080p with a total duration of about 4 minutes
  • running background tasks such as Gmail, Dropbox (uploading photos and videos), Google Photos (also uploading photos, albeit low-res)

The phone died completely at 7:30 pm. The screen had been on for a total of about 1 hour and 40 minutes so it wasn’t the screen that had drained the battery. GSM Arena rates the phone at 22 hours of talk time. Android Authority got the phone to last for 400 minutes of Web browsing or at least 700 minutes of video playback. They also noted that they could run the phone for a whole day with 4-6 hours of “screen on” time. That’s what I remember getting out of my iPhone 6 Plus, which virtually never ran out before bedtime even if it had not been topped up.

Readers: Any thoughts on why the battery life is so short? What’s the debugging procedure for Samsung/Android? I would like to keep the phone because the camera is so much better than on the iPhone and some of the other features are cool. But a battery-powered device needs to have good power management to be useful.

2016-04-08 21.52.41

 

2016-04-08 21.52.52

Update: I discovered that Uber’s software doesn’t think that the Galaxy S7 is a legitimate device (we ended up having to use a friend’s iPhone)

2016-04-09 12.44.29

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President Trump will be good for aviation?

A pilot friend was displaying his virtue on Facebook by denouncing Donald Trump with a reference to a BBC article saying that “Trump presidency rated among 10 global risks.” I responded with

Given your passion for private aviation, I am surprised that you aren’t looking forward to King Donald I. He won’t be shutting down New England by vacationing on Martha’s Vineyard. He himself has been a user of small airports and FBOs. He ran an airline so he knows what it is like to deal with the FAA.

Pilot Readers: What do you think? Will it be good for us aviation nerds to have a user of the U.S. aviation system as president?

[Separately, my friend won’t have to worry too much about economic risk from whoever occupies the White House. He took the advice from the Introduction to Real World Divorce:

“When young people ask me about the law as a career,” said one litigator, “I tell them that in this country whom they choose to have sex with and where they have sex will have a bigger effect on their income than whether they attend college and what they choose as a career.”

(i.e., he married the daughter of a guy who got rich decades ago; he lives as “the dependent spouse” in no-fault Massachusetts so he can also count on lucrative property division and alimony in the event of a divorce occasioned, e.g., by his having an affair with a younger woman).]

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Did Linux catch up to and surpass Solaris and other Unices?

In ancient times Linux was free and other Unix implementations were fast. With all of the effort that has gone into Linux over the decades, I’m wondering where the chips finally fell. Has the practical performance of Linux surpassed that of full-fledged commercial operating systems? As of 2008, IBM’s AIX was supposedly 5-10 percent faster (IBM Systems Magazine). Windows has near-infinite financial resources behind it but may be slower than Linux (source). Solaris circa 2013 was supposedly faster than Linux (throughput charts that are virtually impossible to read).

Maybe it doesn’t matter because development costs, available libraries and security patches, etc. are vastly more important. But it came up over dinner (time to find more interesting companions!) and now I am curious…

Related:

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Icon A5 limps into production surrounded by a phalanx of lawyers

In the department of “Why you don’t want to invest in a U.S. aviation company,” back in 2010 I wrote up a review of the Icon A5 amphibious seaplane that the company promised to ship in 2011. They made a lot of noise in July 2015 about delivering the first production unit, but have been quiet since then. This AOPA article indicates that real production won’t begin until some time later in 2016.

Back in 2010 I wrote

It is not hard to see who would want to buy a fun toy like the ICON A5, but one has to wonder who funds a company like this. Suppose that ICON sells al 500 airplanes and collects $200,000 in revenue from each customer. That’s $100 million. Suppose that two percent of those 500 aircraft are involved in fatal crashes in which a jury finds ICON liable, either for telling unlicensed pilots that they could learn how to fly an amphib in 20+ hours or for not including a gear-down-in-water warning system. That’s 10 crashes. Suppose that each crash costs $10 million. One hundred percent of the company’s revenue has thus been paid out in legal awards.

It appears that the company has been thinking along similar lines. The AOPA article describes extraordinary efforts by the company to limit its liability through 41 pages of legalese that have been sprung on formerly unaware customers. The company imposes a transfer fee on anyone who tries to sell an airplane, restricts training and maintenance options (the owner of an FAA-certified aircraft actually would end up with far more flexibility), and gives itself the right to repurchase aircraft in case an owner has the opportunity to sell one at a profit. The company has imposed a 6000-hour, 30-year airframe life, which is kind of odd considering that composite aircraft aren’t subject to metal fatigue and this plane is not pressurized, which is the typical reason for having an airframe life (e.g., the TBM has a 12,000-cycle or 16,200-hour life limit).

Here’s one comment:

I just refused the proposed contract. Asked for a refund of my deposit. I have signed nothing with Icon; yet they first refused to return all of my deposit, then agreed to refund the whole deposit in about 6 weeks IF I agreed to another lengthy document regarding my rights. I have refused to sign anything this company conjures up. We will see how long it takes them to return my money. I am extremely disappointed.

Related:

  • Now that Icon has cranked up its prices, what you can buy for about the same money: Grumman G-44 Widgeon (Alaska-ready five-seat twin-engine IFR-certified amphib), available on Controller right now for $200,000 to $325,000
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Do kids in India have a bedtime?

My Indian-American friends tell me that kids in India generally aren’t kept on a schedule and that the concept of a fixed “bedtime” doesn’t exist at all. Children may stay up as late as 11 pm or midnight at family gatherings, for example, and children left with immigrant grandparents for a weekend will not be kept on a bedtime schedule.

The U.S., on the other hand, seems to have an entire industry devoted to putting kids to bed at a specific and consistent time.

Readers: Are my friends’ experiences representative? If so, is there a practical and/or long-term effect from this lack of schedule?

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Does the Alaska Airlines acquisition of Virgin America show how uncompetitive the U.S. airline industry is?

Folks:

Alaska Airlines paid $2.6 billion to buy Virgin America. You might think “Well, they bought 57 high-quality Airbus-brand airplanes so of course they had to pay a lot.” Yet it seems that Virgin leases its planes (press release) and the balance sheet shows only $180 million in “Property Plant and Equipment,” which is presumably how an Airbus would be categorized.

If the U.S. had a truly competitive market for air travel, wouldn’t the value of Virgin America be a lot lower? An established company such as Alaska wouldn’t even want to bother buying a competitor but would instead just lease its own Airbus fleet from a standard source and then start operating them on whatever routes that Virgin America currently operates. Given how unions and airlines work, this should actually be a lot cheaper because Alaska would hire new pilots and flight attendants at first-year pay rather than bringing in senior union members.

Other than oligopoly rents being extracted from American consumers due to a lack of competition, how else can we explain the high value of an incumbent airline with virtually no physical assets?

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Must-see TV: Anubha Sacheti Surati on America’s Greatest Makers

How often does one see engineering as part of a TV show or movie? And how often does one see a friend of mine on TV? These exciting rare events are combined tonight at 9 pm on TBS in an episode of America’s Greatest Makers.

This is especially recommended for those who have a passion for pediatric dentistry. Also if you like magic semiconductor gyros. Finally if you have always wanted to know what a Google Project Tango toothbrush would look like.

Readers: Please let us know what you think of the show and of Anubha’s product.

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Should smart people live in a big city?

“Why smart people are better off with fewer friends” is a Washington Post article summarizing research about the relative merits of city and rural life:

they find that people who live in more densely populated areas tend to report less satisfaction with their life overall. “The higher the population density of the immediate environment, the less happy” the survey respondents said they were. Second, they find that the more social interactions with close friends a person has, the greater their self-reported happiness. But there was one big exception. For more intelligent people, these correlations were diminished or even reversed.

“The effect of population density on life satisfaction was therefore more than twice as large for low-IQ individuals than for high-IQ individuals,” they found. And “more intelligent individuals were actually less satisfied with life if they socialized with their friends more frequently.”

Kanazawa and Li explain: “Residents of rural areas and small towns are happier than those in suburbs, who in turn are happier than those in small central cities, who in turn are happier than those in large central cities.”

There’s a twist, though, at least as Kanazawa and Li see it. Smarter people may be better equipped to deal with the new (at least from an evolutionary perspective) challenges present-day life throws at us. “More intelligent individuals, who possess higher levels of general intelligence and thus greater ability to solve evolutionarily novel problems, may face less difficulty in comprehending and dealing with evolutionarily novel entities and situations,” they write. If you’re smarter and more able to adapt to things, you may have an easier time reconciling your evolutionary predispositions with the modern world. So living in a high-population area may have a smaller effect on your overall well-being — that’s what Kanazawa and Li found in their survey analysis. Similarly, smarter people may be better-equipped to jettison that whole hunter-gatherer social network — especially if they’re pursuing some loftier ambition.

Could it be that there is a simpler explanation? Suppose that people who are unusual in any way seek out similarly unusual folks for friendship. If you are 1 in 1000 there are 20,000 people just like you in a big Chinese city. That gives you a lot of choice of friends. If you are average, on the other hand, you can find similar friends in even the smallest community. High intelligence can be modeled like any other abnormal personal characteristic that leads to affinity in friendship.

[Confirming the cited research to some extent, in this ranking of states by happiness, the least crowded states seem to be where Americans are happiest, but some of that may be due to the fact that costs of living are typically low in uncrowded states (no matter how many immigrants we pack into the U.S., a 1/4-acre lot in Alaska (#2), Montana (#3), or Wyoming (#5) will probably still be pretty cheap). My home state of Massachusetts is ranked #30 despite having the #6 rank for income. Don’t forget to check realworlddivorce.com before moving; unless she has already sued the father of her children, a woman who agrees to move from Massachusetts to Colorado may be giving up $millions in potential profits from child support and also will give up her more-than-90-percent chance of winning sole custody.]

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