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Without an OCR layer, PDF files are of limited use.

OCRmyPDF is a tool that applies optical character recognition to PDFs. It uses Tesseract to perform the OCR, and unpaper to clean, deskew and optimize the input files. It outputs PDF/A files, optimized for long-term storage. This isn’t a tool I use frequently, but it is one I greatly appreciate having when I need it. If you ever find yourself scanning or photographing documents, you want OCRmyPDF.

Mirrors on a bike are no different than mirrors on any other vehicle.

They aren’t a replacement for turning your head, but they can be a useful supplement for maintaining 360 degrees of awareness.

Drop Bar Mirrors

I purchased a pair of Sprintech Drop Bar Mirrors last spring. I had never used a bike mirror before, but I’ve grown fond of these over the past three months of use. The viewport is small, but adequate to identify vehicles of any size. I keep the mirrors canted outboard slightly, which means they move if I lean the bike up against a wall. Sometimes I’ll bump one when straddling the bike at a stop light. But they’re easy to move back into place, and I’ve never had them move on their own – rough roads aren’t enough to rattle them – so I don’t mind this. Having never used any other kind of bike (or helmet) mounted mirror, I can’t compare them against their competition, but I think the Swiss are on to something with these. I’d buy them again.

I soak produce in a solution of baking soda.

A study from the University of Massachusetts found that a baking soda wash can be effective at removing pesticides from the surface:

Surface pesticide residues were most effectively removed by sodium bicarbonate (baking soda, NaHCO3) solution when compared to either tap water or Clorox bleach. Using a 10 mg/mL NaHCO3 washing solution, it took 12 and 15 min to completely remove thiabendazole or phosmet surface residues, respectively, following a 24 h exposure to these pesticides… This study gives us the information that the standard postharvest washing method using Clorox bleach solution for 2 min is not an effective means to completely remove pesticide residues on the surface of apples. The NaHCO3 method is more effective in removing surface pesticide residues on apples. In the presence of NaHCO3, thiabendazole and phosmet can degrade, which assists the physical removal force of washing. However, the NaHCO3 method was not completely effective in removing residues that have penetrated into the apple peel. The overall effectiveness of the method to remove all pesticide residues diminished as pesticides penetrated deeper into the fruit. In practical application, washing apples with NaHCO3 solution can reduce pesticides mostly from the surface.

I use a dish washing basin with a drain filled with 6 liters of water (I’ve previously placed pieces of tape on the side of the basin to indicate water levels for 2, 4, 6, and 8 liters). The study’s 10 mg/mL NaHCO3 washing solution translates to 60,000 mg of baking soda for this amount of water, or about 4 tablespoons, which I dump in and swirl around a bit. Then in goes the produce. After 15 minutes I can just pull the drain, blast everything with some pressure from the faucet, and let it sit in the basin (with drain open) to dry until I get around to putting everything away. It is most important to perform this process on the Environmental Working Group’s Dirty Dozen, but the procedure requires such a low amount of effort that I soak any produce which is lacking a thick peel (like oranges) as soon as I get back from the market, regardless of its providence.

Bacteria is a different matter.

It should go without saying that I've sanitized my e-reader.

Trying to inject advertising into the reading experience is sick and sacrilegious. A privacy sticker from N-O-D-E covers the logo on the back of my Kindle, while a piece of tape sanitizes the front. Between this and my offline, DRM-free method of using the device, I enjoy the Kindle without the corporate mindshare.

Kindle at Lunch

Currently reading Bleeding Edge by Thomas Pynchon.

This post was published on . It was tagged with micro, books, gear.

I've found a hand strap to be a useful addition to my e-reader.

I bought the TFY Security Hand Strap for my Kindle Paperwhite 18 months ago. It makes holding the e-reader for long periods of time much more pleasant – especially when reading in bed and holding the device up above my head. No pinch grip required. It doesn’t add noticeable bulk or weight to the Kindle, and I can ignore it completely when I’m not using it. Originally I went looking for some kind of case with a cover that could be folded into a more ergonomic shape to hold, but when this strap appeared in my search results I realized it was a simpler solution to the problem. The strap could probably be made with a wire hanger and some elastic webbing.

Kindle Handstrap at Lunch

Virginia Tech rates bike helmets.

The CPSC standard is of limited practicality. It seeks only to test if a helmet can prevent a skull fracture from a direct impact on the top of the head. It was refreshing to find Virginia Tech’s helmet ratings, backed by a test methodology that actually seems to appropriately model reality. I was pleased to see that my Smith Overtake scored 4/5. The Overtake is four years old and still in fine shape, but whenever it comes time to replace it I’ll use these ratings to make a purchase decision.

This post was published on . It was tagged with micro, bicycle.