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Robert Brown (RLBrown)
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Robert Lawson Brown
Robert Lawson Brown

61 followers
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I wrote this essay almost four years ago, during an uptick of people's excitement about BitCoin. Now, we have another uptick, not just about BitCoin but other crypto-currencies as well. I revisited my essay and found that my opinions on the matter have not changed. Here is a link to that essay.
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For myself, I rely on Python for server-side processing, though occasionally I will play with Java to keep my old skill set fresh. I also do a lot with Javascript, but only because Javascript is the only choice available for web client interactions. I continue to learn Swift, hoping to build marketable Mac applications and iOS apps someday. Mathematica is used for special analysis tasks. After those, I never use my much older set of languages from the past, including Forth and FORTRAN. (I wrote my first program in September of 1969 using FORTRAN,)
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Robert Brown (RLBrown) commented on a post on Blogger.
This is a follow up to my discussion on my eBike project. I have added a pedal assistance mode. In this mode, when you pedal, the motor adds torque, reducing, but not eliminating, your effort. I also checked into some legal issues about which some interested friends have asked. In California, a bicycle to which an auxiliary electric motor has been added, is classified as an "eBike", not as a motorized bicycle or moped, provided the top motor driven speed is less than 20 mph. This is an important distinction. For the most part, eBikes are no different than traditional bicycles -- eBikes may be used on any bicycle path, and follow the same rules of the road as traditional bicycles. No M2 endorsement is required, no registration is to be done, no license plate is placed on the eBike. The eBike designation is based on maximum power and maximum speed. An article that discusses this, and which a nice chart for the various eBike types, can be found at this URL: http://www.peopleforbikes.org/blog/entry/new-e-bike-law-passes-in-california
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Adding an electric motor to a recumbent bicycle was reasonably easy. You can read about the project in my blog: https://robert-lawson-brown.blogspot.com/2017/05/i-added-electric-motor-to-my-bicycle.html
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I added an electric motor to my bicycle
I almost completed a project to add an electric motor to my my bicycle. By almost, I just have to swap the cranks to a slightly shorter length, but the wheel modifications have been done, and the controller and battery mounted, and I have taken it out for a...
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Total eclipse of sun on Forever stamp. Thermochromic inks. Awesome 🤓
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Some thoughts after the March for Science
I arrived at the Justin Herman Plaza in San Francisco, at about 10:30 AM. The trolley operator asked to read my sign as I disembarked. I did not have a particular clever sign -- it was a portable chalkboard on a stout carrying pole. The message was a simple...
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Some thoughts upon the day preceding the March for Science
April 21st, 2017 Tomorrow, it is my intent to add my body to the crowd that will be seen for the March for Science 2017. My role is just adding to the body count, so the journalists covering the event can remark on the human turnout for this cause. This wil...
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