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Joined 1 year ago
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Cake day: July 4th, 2023

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  • I see a lot of specific examples, but here is a good engineering guideline: do not skimp on physical interfaces. **Anywhere energy is changing form or if it touches your body, don’t skimp on those. **

    For example

    • tires
    • bicycle saddle
    • heaters/furnaces
    • electrical inverters
    • keyboard
    • mouse
    • engines
    • shoes
    • eyewear
    • clothes (buy used if necessary, but always buy quality clothing)

    Quality usually means more money, but sometimes one is able to find a high quality and low-cost version. In my experience though, trying to find the cheap version that works well means trying so many permutations; it would have been more economical to just get the more costly version in the first place.








  • We live on an ocean-going sailboat. We make our own water and electricity. We have ~25 years of membranes, filters, and most parts. While we have the means to move around to cooler climes, going further northward means more severe storms and shorter working life of everything. So there’s that consideration.

    Having the escape hatch of the boat does a lot to ease the anxiety.

    Other coping mechanisms:

    • fixing people’s bicycles for free and evangelizing micro-mobility
    • monitoring and mapping marine health in maritime communities (kelp, fish counts, bottom conditions); yes this is “just” monitoring, but one measurement is worth 1000 opinions and hopefully helps to move the needle on getting everyone to pull together on environmental protections
    • community education on aeroponics and micro-hydroponics
    • community support on emergency preparedness

    I’m sure I’m skipping over some of my other copium prescriptions, but those are the most salient.








  • Oh, right! I forgot about all of the LIDAR-equipped planes in maritime communities! Those are way more economical to fly than any sUAS. /s in case that wasn’t obvious.

    In case you, or anyone else, were vaguely interested in learning:

    -kelp extent mapping needs to be done in repeatable fashion, specifically at low tide; we can put up an sUAS any time

    -the communities most in need of monitoring absolutely cannot afford to send planes up monthly

    -many of the kelp beds in the PacNW are in restricted airspace; it is much easier to get an FAA clearance to perform low-altitude surveys using sUAS

    -that restricted airspace I mentioned? Some of these kelp beds are on approach paths for the airspace. Even if a plane were the preferred choice for surveying, the planes are unable to fly in the pattern we need

    -(drifting a touch off your point of LIDAR-equipped planes) satellite imagery with the required resolution is prohibitively expensive

    -most construction projects wouldn’t use a plane for tasks such as volumetric or area analysis

    Consumer drones are quickly becoming the preferred, economical means for kelp health analysis, especially for communities that can’t afford planes or purchasing satellite imagery.


  • This “lonely adult” uses drones for aerial mapping and survey. This Summer’s huge project is a workflow I developed to map the extent of PacNW bull kelp forests in order to provide year-over-year health metrics. Using sUAS for this is way more automated, economical, repeatable, and granular than using airplanes and satellites, therefore within reach of those communities monitoring kelp health.

    DJI hits the sweet spot of capabilities, compatibility, and cost. Skydio (go USA!) has abandoned the consumer/enthusiast market that built their business. And even before they turned their back on the consumer market, Skydio couldn’t come close to DJI’s hardware. Additionally, Skydio, in true capitalist fashion, locked capabilities away behind software licenses, capabilities that are already built into the drone.

    It’s important for countries to have domestic drone manufacturing in the current conditions. But the USA’s actions here smack of protecting companies that just can’t hang.