[From the Archives of Amusing Technology…] Back in the ’90s, Dave Fisher and I created NameD•tective, a Macintosh control panel that gave any Mac on the Dartmouth network a static DNS name.

It used Name Binding Protocol to let someone create a DNS name based on their name plus their AppleTalk zone. The DNS name had the form: person-name.AppleTalk-zone…dartmouth.edu. The NameD•tective server looked up the NBP name, and returned the computer’s current IP address.

This screen shot shows an example: cd-changer.kiewit.atzone.dartmouth.edu was a server in my office that distributed information to other developers in the Kieiwt building. NameD•tective probably didn’t get broad use at Dartmouth, but it was a neat demonstration project. It led Dave and me to develop the MacDNS software that was shipped as part of Apple’s Internet Connection Kit. Here’s the page from Dartmouth’s website archived by the Wayback Machine: https://web.archive.org/web/19961220043011/http://www.dartmouth.edu/pages/softdev/named.html

Today, computer naming is much simpler. Modern operating systems let a computer specify a mDNS (multicast DNS) name that can be directly looked up to find a host that provides the service.

The NH Stone Wall Mapper project uses Lidar data to display small variations in ground elevation. A UNH project built this map to identify stone walls in the state.

This site can be “misused” (in a good way) to show lots of other topographic features. Here’s a “Lidar view” of the grounds of Loch Lyme Lodge, near Post Pond. The features are shaded as if the sun were shining from the northeast. (Update: 31 Dec: Thanks to the good folks at the NH Geological Survey, the link now goes directly to the desired view!)

But wait… there’s more! You can turn on and off various “layers” to see other kinds of information. To do this:

1. At the top-left, click the Layers Icon to display various layers
2. Check on or off the Hillshade box to “show or hide the trees”…
3. Click the More… icon to enable other features, such as the “Swipe Layers” that lets you compare two layers…

So much fun – play around!. Turn on/off layers, scroll to other parts of NH. If you find something interesting, send me a note and I’ll post it. Enjoy!

A friend (thanks, Ted!) directed me to a nice science-based article that assigns some probabilities of risks of transmitting a disease like coronavirus. The author highlights two major scenarios:

1. Warm body transmission: how far apart should you be from other people if you want to avoid transmission from another “warm body”
2. Surface-based transmission: what precautions should you take when you go somewhere that others have passed through recently.

You won’t be surprised by the takeaways:

• 6 foot distancing is good
• wearing a mask is good
• washing hands is good

…but some of the discussion and details are interesting. View the full article at Medium.

Now that we’re computer conferencing all the time, I needed a better microphone, (My MacBook Pro’s built-in microphone doesn’t work well. The volume is too low – perhaps there’s something wrong.) I suspect many others would benefit from a better microphone, too. Not only do they give a better sound, but a microphone close to the mouth minimizes other nearby sounds.

So I went on a quest to find a better solution. I found a variety of options, and tested several. I put my notes here so I can remember:

• Bluetooth earpieces Any Bluetooth headset/earpiece that is advertised to work with your cellphone will probably work. They’re lightweight, have decent microphones, and boast a certain amount of noise cancellation. (Look for ones that can be paired to two devices, so you can use it with both your computer and your cell phone.) I own the Plantronics M70 – it works fine, and has 11-hour talk time (and when I don’t use it, the charge lasts for weeks). Apple AirPods or knock-offs should also work well, although I have not tested them.
• Earbuds with cables Apple EarPods (corded) ($15 with shipping from MacSales) or from Amazon work fine for videoconferencing.
• External microphone if you want to include multiple people on your end, or if you don’t want to be “cabled” to the computer… I own the Amazonbasics Desktop Microphone because it was highly-rated in a Wirecutter article. It works great.
• USB Audio In Since not all computers have a combined headphone and microphone jack, you can add a USB “sound card” to virtually any computer. I checked out the TROND External USB AudioAdapter Sound Card and it works fine with all the 1/8 inch (3.5mm) audio inputs.
• Gaming headsets These large (and heavy) headphones have a microphone on a stalk to pick up your voice. I own one, and it works just fine. But it’s obtrusive (viewers see those “cans” on my head) and not terribly comfortable. There are a zillion options: you can Google “gaming headset” to see the range.
• My favorite For years, I used a Plantronics headset with my cordless phone. It’s lightweight, has good sound, and it’s cheap ($20). But it has a 2.5mm plug – so I bought an adapter cable ($8). This plugs right into the headphone jack of my MacBook Pro (both headphone and microphone work perfectly). But if this doesn’t work on your computer, get the TROND adapter.

All this assumes your computer has either USB, Bluetooth, or 1/8 inch/3.5mm headphone inputs. (All modern computers do.) I’ve included links to Amazon, but most items are available from lots of places.

Let me know what you’re using for your videoconferencing pleasure – richb.lyme@gmail.com. Thanks!

I am pleased to present my first “guest posting” here on the blog. I support this article, and I hope you can cast your vote on the ballot at Town Meeting, March 10, 7am to 7pm.

Jim Nourse has been working over the last six months to gather support for an article on the Warrant in March to encourage the Town of Lyme to use 100% renewable sources of energy by 2030. Here’s his open letter to the Town, with the text of the Article 22 appended:

As we look forward to Town Meeting, I wanted to give you an update on where the effort to put forward a warrant article moving the Town and its residents away from fossil fuels and towards clean, renewable energy stands. The Energy Committed has voted 7-0 to support this article; the Select Board voted 3-0 to support the article. I have attached the article below.

I will be speaking in favor of the article at Little Town Meeting on Tuesday, March 3, 7 pm. I would love some support, if appropriate, from members of the audience. I would also encourage you to talk about the article with your neighbors and friends. It would send a very clear message if the votes at Town Meeting were overwhelmingly positive. A few talking points:

1. This article is a non-binding advisory article to give a “sense of the Town” in moving in the direction of a non-fossil fuel energy future. As such it does not mandate any actions by either town officials or residents. It is assumed that town officials and residents will continue to be fiscally prudent as we make this transition.
2. The Energy Committee sees this as the start of a town-wide conversation about how Lyme makes a transition to a non-fossil fuel, sustainable future.
3. The article discusses the major reasons that this transition is both necessary and immediate. Fossil fuels are finite in supply and even as advances in technology make it possible to extract the remaining supplies (think fracking as an example), the cost of that extraction will continue to become more expensive. And, perhaps the most important reason, the need to solve rapidly intensifying climate change which in large part is driven by our burning of fossil fuels.
4. People will ask what this transition might look like. If, as we expect, most voters support this article, it will give the Select Board and town committees a clear sense that this is the direction the town wishes to go in. It might mean a review and reshaping of energy guidelines for new municipal construction. It might mean the amending of zoning regulations to make it more conducive for community solar projects. It will guide the town’s committees as they update the Town Master Plan. It will most likely mean more community-wide initiatives like Weatherize and Solarize Lyme. It may lead to increased collaboration with area towns to aggregate electricity purchases in an attempt to both secure the most economical rate as well as purchasing from renewable sources of electricity. It may mean seeking state and federal grants for renewable energy projects. It will mean making sure that those residents who cannot afford to move to renewable energies are included in projects that provide access to those energies that are affordable.
5. A final point for me is the recognition that this transition will not be easy or straightforward. There will probably be times when the town or residents choose a “better” alternative, but not the “best” alternative given financial or logistical limitations. People may wonder how we will ever arrive at 100% renewable electricity by 2030, or for heating and transportation by 2050. My response is that these are goals, that the sooner we begin to work towards them, the farther along we will be. If by 2030, only 65% of our electricity comes from clean, renewable sources then that’s still more than it is today.

And speaking of beginning right away – there are two town projects on the immediate horizon that should be influenced by a goal of transitioning away from fossil fuels and towards renewable energy. You will most likely hear about these at both town meetings. The pellet boilers that serve the town garage are in need of replacement and there are plans to construct a new fire station. There are choices in what type of heating source to install as well as design choices for the new fire station that will impact whether it can be easily retrofitted to renewables, i.e. PV panels, in the future. I hope that you will add your voices in calling for those in charge of making these decisions to move away from fossil fuels and towards a future of renewable energy.

Many thanks for your support of this transition. Let me know if you have any questions or suggestions.

Best,
Jim

Article 22-Renewable Sources of Energy

(Can’t read the PDF above? Download it at
https://RandomNeuronsFiring.com/wp-content/uploads/2020/02/Warrant-Article-22-Final-02.20.2020.pdf)

There will be two public meetings at the Converse Library in Lyme to discuss the petitioned Planned Development amendment. Not only does it provide a measure of fairness for landowners near commercial properties on Route 10 but it enables new housing opportunities here in Lyme.

I support this Planned Development amendment. We all know that Lyme (and the entire Upper Valley) have a housing problem. Seniors can’t downsize in Lyme, many people who work here can’t afford to live here, and there’s no economical way to build modest price housing.

We are looking for a lively but civil conversation on this important topic. Please attend and let your friends know about the meetings. Thank you.

Saturday, February 22, 11am, Converse Library
Tuesday, February 25, 7pm, Converse Library