Category: technology

Sunday, 17 May 2015

08:13 – Here’s irony. I’ve been desperately hoping for an alternative to Time-Warner Cable ever since we’ve lived in this house. Yesterday, we got mail from AT&T announcing that their fiber Internet service is now available in our neighborhood, just as we’re preparing to move up to the North Carolina mountains. Ten years ago, five, even one year ago, I would have been first in line to sign up for the A&T fiber Internet service. Now it’s too late. Fortunately, the West Jefferson area already has fiber Internet service.

Barbara labeled several hundred bottles yesterday, in batches of 120 each, and will label several hundred more today. I’ll end up with something between 1,500 and 2,000 labeled bottles that I can fill this week. I’ll order another few cases of bottles today or tomorrow so she’ll have more to label this coming weekend. That’ll give us a good start on what we need to build kits for the summer/autumn rush.

Speaking of new services available in Winston-Salem, I just placed an order with Amazon on Friday and a message popped up to tell me that Winston-Salem is now one of the cities for which Amazon offers year-round Sunday delivery via US Postal Service. I’ll have to talk to the mailman and find out if that means we’ll also be getting Sunday pickup for kit shipments.


09:42 – When I converted to Linux more than a decade ago, I used a WYSIWYG HTML editor called N|Vu, which was a Linspire fork of Mozilla Composer. When N|Vu was orphaned, a community fork called KompoZer replaced it. Unfortunately, that project never really got off the ground, and it was last updated more than five years ago. The last version doesn’t work with “recent” Linux versions, which is to say any that use GTK ≥ 2.14.

So I went off looking for a WYSIWYG editor for Linux, but the cupboard appears to be bare. So I downloaded the last version of KompoZer, but in the Windows version. I hope it works there, or my only choice will be to bring up an e-commerce site, which I eventually intend to do anyway, but just not right now.

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Wednesday, 11 March 2015

08:18 – I see that Apple has introduced a watch that costs up to $17,000 and runs for as little as 3 hours on a charge before it needs to be removed and connected to its charger for a 2.5 hour charging session. This battery issue seems to be a recurring problem with Apple products. I think the reason is that Apple “designs” new products and only after the design is finalized do they figure out how to cram a battery into it. They need to get engineers involved from the beginning, but I doubt Apple has many actual engineers.

There was an article in the paper yesterday and a follow-up article this morning about a 21-year-old woman who ran off the street and struck and killed a 10-year-old boy with her car. She then continued across the grass, ran into a tree and fence, abandoned her car, and fled. The article yesterday said that she’d been charged with felony hit-and-run. I said to Barbara yesterday that I thought that was a bit harsh, given that she’d left her vehicle at the scene. It sounded to me as though she’d panicked after the accident and wasn’t really trying to avoid responsibility for what she’d done.

The article this morning added more details. When he was struck, the boy was standing in front of his home, talking to his older brother and mother, who watched it happen. The driver lives on the same street as the victim, although the street changes names at the curve where the incident occurred. The street is only a few blocks long, so there’s no way she wouldn’t be identified. There’s a good chance that the victim’s family knew her or at least recognized her 2014 Toyota RAV4. Barbara speculates that she was texting when she lost control of her car and killed a child. So she’ll have that to live with for the rest of her life, and will probably be facing some serious jail time.


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Friday, 20 February 2015

10:18 – Yesterday, I received the Baofeng UV-82 dual-band HT that I ordered Monday from Amazon. Even ignoring the $37 price, it’s an impressive looking piece of equipment. It’s not a Yaesu or an Icom, but you can get five or ten of these for the price of one Yaesu or Icom. The Baofeng feels solid, and the case is commercial-grade, much less flimsy feeling than the cheap blister-packed FRS/GMRS radios. This UV-82 feels like a radio that was designed and engineered for heavy daily use. Coincidentally, about half an hour after it arrived I came across this article by my friend Jeff Duntemann, a long-time ham operator who also has nice things to say about it.

I haven’t even put it on the charger yet. Before I do, I need to renew my ham license, which expired in about 1971. All I need is a Technician Class license, which requires only taking a simple test on radio theory and FCC regulations. I’ll read through the ARRL materials on the Technician test and then drive up to Wilkesboro in April, which is the nearest place to take the test, both in terms of date and distance. I’m not concerned about the theory part. That hasn’t changed much since I was last licensed. What has changed is the FCC regulations. In fact, there are whole new bands available since I last operated a ham rig, with odd-sounding designations like 30, 17, and 12 meters. I understand these are the WARC bands, which were created in 1979. Since I have no intention of operating on anything longer than 2 meters, this stuff is immaterial to me other than for test taking.

As Jeff points out in his post, a lot of hams dislike these Baofeng HTs, not because there’s anything wrong with them in terms of quality or performance, but because, being software-progammable, they can be operated on any frequency they support. That’s a pretty broad range, 136-174 MHz and 400-520 MHz for the UV-82. That range covers not just the FMS, GMRS, MURS, and VHF/UHF business band frequencies, but a whole lot of others, including aircraft, marine, and public safety bands.

But the UV-82 is not type-accepted by the FCC for any of these bands, which means the only legal way to operate it is with a ham license on frequencies allocated to amateur radio. Given the popularity of these HTs on Amazon and elsewhere, I’d guess that probably 1% of them are purchased by people who are legally entitled to operate them, with 99% of them being operated illegally on FRS/GMRS, MURS, and other frequencies. I would never do that, of course.

Probably no small percentage of those operators are preppers, attracted by the low price, high quality, and extreme flexibility of these little transceivers. I have advice for anyone in that category. First, don’t get caught using it unless you have a ham license and are running on authorized amateur frequencies. The FCC will come down on you like the proverbial ton of bricks. Of course, that’s not likely to happen if you’re operating on FRS, GMRS, or MURS frequencies, or even marine-band frequencies, because it’ll be hard to pick you out of the crowd unless you’re using marine band frequencies inland. But don’t even think about operating outside those common frequencies, and particularly don’t use sensitive frequencies like the public safety band. You’ll probably be caught and end up paying a large fine.

Also, remember that these are software radios, which need to be programmed before they’ll do anything. You can program most features using the buttons on the radio, but it’s a pretty complex and time-consuming procedure. Better to download the OSS software CHIRP and program the radio from your computer. To do that, you’ll also need a special USB cable. Those are available for $5 and up, but I recommend avoiding the cheap ones. Those use firmware that requires specific drivers that are a nightmare to get installed and configured. Worse, if you’re running Windows, when you connect to the Internet Windows will update those drivers, breaking them. It’s better to use a plug-and-play cable like this one, which costs $20 but Just Works.

If you plan to buy multiple units, also buy a clone cable, which allows you to copy the programming from one transceiver to others easily. While you’re at it, you might also want to buy spare batteries, a battery eliminator with cigarette lighter plug, and a AAA battery adapter. That last is interesting. It includes a dummy AAA battery. If you’re running NiMH rechargeable AAA cells, you use six in the adapter, which provides 7.2V. If you’re running AAA alkalines, you use five in the adapter plus the dummy, for a total 7.5V. If you use six alkalines (9V), the receiver operates but the transmitter doesn’t.


14:49 – Barbara and I started watching series two of Vikings last night on Amazon streaming. Between episodes I mentioned that I’d just had an ironic thought. Here I am an honest-to-god Viking-American, and yet I hardly ever leave the house.

I will admit that from time to time I do feel an urge to head out to do some looting and pillaging, perhaps burning down a monastery or two and slaughtering some monks and sacking a convent and raping a bunch of nuns. Or, being a Viking, I suppose I could slaughter the nuns and rape the monks. But it always seems to be more trouble than it’s worth, and the urge soon passes.

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Wednesday, 7 January 2015

08:39 – My beta copy of the Foldscope showed up yesterday. These $1 microscopes are not toys; far from it. They’re intended for educational use and also for diagnostic use in the field. They come in several variants, including brightfield, darkfield, and polarizing, and in different fixed magnifications up to 1,200X.

The Foldscope beta project distributed 10,000 of these microscopes, including one to me. Their initial goal is to get a bunch of these into people’s hands and assemble documentation from contributed articles about various aspects of using the scopes. I plan to contribute a section or two myself anonymously and in the public domain. Once the scopes are available for sale commercially, we’ll probably start including one in every biology kit we ship. Maybe every kit, period.

I’m making up chemicals for chemistry and biology kits today, and may have time to get started on bottling them as well.


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Thursday, 20 November 2014

10:33 – I’m still hard at work on the prepping book, but I need to take some time off to build some science kits. Kit sales this month are running slightly ahead of last November. Two-thirds of the way through the month, we’re at about 80% of last November’s total sales, so if the trend continues we’ll end up at about 120% month-on-month. Then comes December, which is a pretty heavy month, so we need to get finished-goods inventory built up for that.

Ambrose Evans-Pritchard has a good column posted about the US-China climate deal and its effect on the oil industry. I agree with the substance of his arguments, but I think he underestimates the impact of solar on petroleum. Forecasts are nearly always wildly optimistic over the short term and wildly pessimistic over the long term, and I think that’s the case here. The question is, how long a term?

Solar is poised to become a major source of electric power. We’ve known for a long time that this would happen eventually. Insolation on every square meter of the planet’s surface amounts to about a kilowatt. The only questions have always been how to convert that solar energy to a useful form–i.e, electricity–and how to store that electricity.

As to capture, the science is already there. We have the science and increasingly the technology for very high-efficiency solar panels. The real problem has been storage. Back in the 70’s I read a book on storage batteries by a guy named George Vinal. It was published in something like 1907, and the technology had hardly changed during the intervening 70 years. It’s changed massively in the 40 years since I read that book. Revolutionary advances have been made in the labs, and are now working their way into mass production.

So now it’s just a matter of engineering and manufacturing, and we have plenty of good engineers and factories. Even now, you can walk into a Home Depot and buy a pretty impressive solar array. They’ll even send a crew out to install it on your roof and connect it to your battery bank. Costs are plummeting, and more and more people are adopting solar power for part or all of their power needs. In many areas of the US, solar is already at “plug parity” with utility power. As costs continue to drop, solar will continue to displace utility power. My guess is that in 10 years solar will be commonplace, and in twenty it will have largely displaced electric utility power all over the US. The utilities will go down fighting, of course, but down they’ll go.

All of this is to the good. Better that every building is self-sufficient in electric power, including for cooling and heating than that we continue to build large power plants and run millions of miles of wire to distribute that power generated centrally. And far better that we cease consuming fossil fuels and instead leave them as feedstocks for chemical manufacturing.


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Sunday, 29 June 2014

10:24 – We’re doing the usual Sunday stuff.

Yesterday I moved the canned dry goods we purchased from the LDS store off the steel shelving unit and onto a pallet I built along one wall from 2×2 spacers and 1×6 boards. Keeping that stuff on the steel shelving unit was a waste of heavy-duty shelving that we can use for canned soups, vegetables, fruits, etc. The LDS store stuff is in cases of six #10 cans each, and the cases stack just fine without shelves to separate them. A space 8 feet (2.5 meters) wide by 40″ (1 meter) high by 13″ (33 cm) deep is sufficient to stack 25 cases 5×5. Depending on contents, the cases range in weight from about 13 to 37 pounds (6 to 17 kilos), so stacking them five high isn’t a problem.

I’ve also claimed some unused space in our full-size vertical freezer, which I’ll use to store small, high-value items, particularly those with shorter shelf lives. The rule of thumb in chemistry is that each change of 10 degrees Celsius doubles/halves the rate of a reaction. In a freezer at -20C versus room temperature of 20C, that 40C difference is four doublings, or a factor of 16X. In other words, an item that has a one-year shelf life at +20C can be expected to have a sixteen-year shelf life at -20C. And there’s no drawback to keeping that unused space filled. The converse, in fact. If we have a power failure, the more mass that’s in that freezer at -20C, the longer the contents will stay cold.


11:21 – I hate it when updates break stuff. Barbara has a Sansa Fuze MP3 player. For years, every two or three months I’ve refilled it with music simply by connecting it to a USB port and having it recognized as a USB mass storage device. This morning, I plugged it in and got an error. Ubuntu 14.04 said it was “unable to open MTP device”. A quick search turned up the solution. I had to go into settings on the Fuze and change the USB settings from Autodetect to MSC. I wish that Linux developers would adopt as their Prime Directive “DO NOT BREAK SOMETHING THAT ALREADY WORKS”.

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Wednesday, 14 May 2014

09:33 – Yesterday, I binned and bagged 30 sets of unregulated chemicals for chemistry kits, and binned 30 sets of regulated chemicals. I’ll bag those today, make up 30 small parts bags, tape up 30 boxes, and start building the kits. I also need to make up four liters of iodine solution, which we’re running short of.

I also spent a lot of time yesterday getting my main system configured, restoring data, and so on. Everything works now. I’m content with Ubuntu 14.04 LTS, which is good considering that I intend to continue using it for the next five years. I already like it better than I did Linux Mint 15.


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Tuesday, 6 May 2014

08:58 – If someone had asked me to name biotechnology companies, Autodesk wouldn’t have been on my list. Thanks to Brian Bilbrey for this link. As it turns out, Autodesk should have been on my list. They just created a synthetic bacteriophage virus.

Although this is a very fast-changing field and the video linked to in the article is nearly three years old, it’s still worth watching.


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Tuesday, 22 April 2014

09:41 – Sankie’s funeral is Thursday. I’ve arranged with the neighbors to walk Colin while we’re gone and keep an eye on our house. Barbara is heading over to her mom’s apartment this morning to meet Frances and get the place ready to meet people after the funeral.

Meanwhile, it turns out that the Opera workaround for getting labels printed on the USPS website was not the permanent fix I’d hoped it was. I had kits to ship yesterday, so I fired up Opera and entered the data for the labels. When I attempted to pay for them, I got the old “payment method denied” message. So I fired up Chrome or Firefox, I forget which, and clicked on the link to pay for the labels in my cart. This time it worked, and I was able to pay for some of the labels, get them printed, and get the kits shipped. Not all of the kits, though. The USPS web site choked on the foreign shipments, so I have two kits going to Canada that are still sitting in the cart.

So I tried using PayPal shipping for the Canadian kits. No dice. It appeared to work normally. It let me pay from my PayPal balance. But PayPal uses Pitney-Bowes, which doesn’t produce a downloadable PDF label. Instead it runs a script that is supposed to send the label to your printer, but doesn’t allow you to save a copy of the label. Long story short, I could not get the label to either printer no matter what I tried. Bastards.

I decided to give up trying to make this work. I checked the Costco site for Windows notebook systems. Barbara is going to pick one up for me while she’s out today. Assuming that solves the USPS label problem, I will dedicate that system to printing labels.


13:19 – Barbara called from Costco to say they had literally no Dell laptops. Apparently, they’re in the midst of a model-year changeover. They did have a few Toshiba and HP laptops, but I told her I wasn’t interested in any of those and that I’d just order on-line.

I checked Amazon, which of course had slews of laptops, but everything they had in Dell models was more expensive than Costco. And Amazon doesn’t have the doubled warranty or the easy return. I ordered a model that was a couple steps up from the bottom model Costco carried. It has an Intel Core i3 rather than a Celeron. Only a 500 GB 5400 RPM hard drive and 4 GB of RAM, but that’s fine for what I want it for. No touch screen, which I explicitly didn’t want. The total, with $30 shipping and sales tax, was just over $400. Not bad.

It comes with Windows 8.1. If there’s an option at first boot to choose Win 7, I’ll do that. Otherwise, I’ll probably install the shell program that several readers have recommended.

Oh, and a guy just showed up at the front door with flowers for Barbara. I called to see how her day was going, and mentioned the flowers. I also made it very clear that they’re not from me. (Barbara has told me in the past that if I ever buy her flowers she’ll know I’ve been up to no good…) She claims that she doesn’t think I’m funny (although just about every other woman I know does think I’m funny…) but she did laugh at that.

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Saturday, 12 April 2014

11:00 – Barbara is off to the supermarket and I’m doing laundry. Before we could do that we had to unpack and check in a shipment from one of our vendors in order to clear a path to the washer/dryer and Barbara’s car. This shipment takes us back up to comfortable inventory levels on a lot of components: 200 more boxes of flat microscope slides, 45 dozen 6″ rulers, 30 dozen 100 mL graduated cylinders, 40 dozen test tube brushes, and similar numbers of several other items.

Barbara took her mom out to dinner last night. She said Sankie is doing a bit better. Not a lot, but at least not any worse.


13:36 – You know those stories (many confirmed) about light bulbs that have been burning steadily for 100 years or more? Well, I have a similar situation with one of my calculators. I’ve printed the state and federal tax forms, but before I send them off I always double/triple-check my math. For this final check, I’m using my HP-12C calculator, which I bought in 1983 when I started on my MBA from Wake Forest University’s Babcock School. I used it very heavily then and for some time thereafter, although in recent years it’s mostly sat in a desk drawer. But the odd thing is that the batteries I installed when I bought it 30 years ago are still in there, and still working fine. The original and only set.

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