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thadk

390 karma · joined March 3, 2009

tuning global tech pulse toward int'l tech development. Working in ICT from '07 in East Africa (Tanzania) and later West Africa (Liberia).
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thadk··on The unsung hero of the Apple Watch is its hidden buttons
For what it's worth, scaling the freestanding Mt. Kilimanjaro volcano is about as intense as a 4 day backpacking trip up up up to high altitude, little to no watch-risky technical climbing required for the common routes.
thadk··on The networkQuality tool on macOS
Now that Apple TV+ is a big player in streaming video, they need to make sure the incumbent internet providers in the USA are not playing traffic shaping games targeting their servers. It is just like how Netflix hosts a major speed tester.
thadk··on Ask HN: What is new in algorithms and data structures these days?
Toward 5, I've been able to get ELK.js to do somewhat stable things for simple graphs using `FIXED_ORDER` https://www.eclipse.org/elk/reference/options/org-eclipse-el...
thadk··on A visual book recommender
Anvaka's YASIV was an extremely strong tool in this space until Amazon discontinued the API it relied on.

https://twitter.com/anvaka https://twitter.com/yasivcom

thadk··on Egypt builds worlds largest man-made river
This article I found by searching has a map: https://www.egypttoday.com/Article/1/100343/10-information-t...

It says the schedule got sped up from 10 years to 2 years. I wonder if the Ethiopian Dam scheduled for completion in the coming months had anything to do with that? https://www.dw.com/en/ethiopias-gerd-dam-a-potential-boon-fo...

thadk··on Fullscreen apps above the MacBook notch
Can hammerspoon be used to accomplish this same effect?
thadk··on JavaScript Object Notation (JSON) Pointer (2013)
If you don't need multi-language support, it seems like there may be more natural ways to point at a particular part of a JSON object. This issue has a few different implementations and alternatives: https://github.com/akheron/optics-ts/issues/241
thadk··on Search through historical cookbooks dating back to the Middle Ages
The lunch cafeteria at the Museum of the American Indian in DC is fabulous sort of in this way.
thadk··on IKEA made a smart air quality sensor to track indoor pollution
I got the window unit version of https://www.openerv.org and it is better than leaving the window open.
thadk··on Liquid modernity? (2014)
This concept is obviously intended for a broader writ but I love the way this plays with the yesterday-surfaced SICP/Sussman video's spontaneous crisis of the late 1990s which changed the way computer engineering needed to be taught: https://news.ycombinator.com/item?id=34657535

It also matches reasonably well to the concept of nebulosity and the ways it complicates modernity from David Chapman: https://meaningness.com/nebulosity

Importance of "container" takes on more importance in our ideal conceptions with liquid.

thadk··on 43 Hours on the Amtrak Southwest Chief
On recent long-haul trip on Acela I seem to recall low 1,000s PPM (65% full train across 7hr trip). On a regular train trip, a bit higher, like 1,250-1,900 PPM on a fairly packed train (10 hr trip). Both northeast corridor.
thadk··on AirGradient Open Source Air Quality Monitor for CO2 and PM2.5 Measurements
It appears to be this $60 Senseair Sunrise however: https://sensormaestros.com/products/sensor/gas/co2/senseair-...

https://senseair.com/news/customer-cases/aranet4-senseair-su...

thadk··on Food Expiration Dates You Should Follow
These journalists who keep writing about expiration dates in absolute terms need to read up on https://en.wikipedia.org/wiki/Histamine_intolerance.
thadk··on Rapid-fire laser diverts lightning strikes
If further confirmed, this calls for a new art installation like Lightning Field (1977) https://publicdelivery.org/walter-de-maria-lightning-field/
thadk··on Heat pumps of the 1800s are becoming the technology of the future
There is an open source 3D printable unit design here which I installed in my window and works well for relatively efficiently exhausting the CO2 from one person in cold weather: https://www.openerv.org (license: CC BY-NC-SA 3.0)

I did not 3D print mine, but ordered it, though as an early adopter, adjustment was required.

thadk··on Eggs are 60% more expensive than last year in the US
If you're in an area which used a lot of lead paint in the past, be aware that free range chickens can move that soil lead into their eggs: https://now.tufts.edu/2019/05/29/backyard-chickens-and-risk-...

Seems this kind of invisible contextual factor could dilute studies on "health".

thadk··on Globalization is dead and no one is listening
Here is a poorly mic'd but audible version of the remarks of Morris Chang, the now-91-years-old founder of TSMC several speakers prior to Biden's own remarks: https://youtu.be/urlwF0B9-hw?t=747
thadk··on Analyzing Carbon Dioxide levels while attending IETF-115 in London, UK
Several of us have built visualization tools which produce output a bit similar to the one in this article for the aranet4 unit. These can be found linked from: https://observablehq.com/@thadk/aranet4-explorer. Works best with the iPad app on an M1/M2 macOS computer.

There are also several other ways to get the output such as a bleak project on GitHub (https://github.com/Anrijs/Aranet4-Python).

thadk··on Ask HN: How do you navigate Seasonal Affective Disorder?
Sometimes I drift from typical wake patterns. Unfortunately, my sleep only seems to move clockwise, otherwise I get headaches and malaise if I try to adjust back. As an extreme but oddly satisfying antidote, I sometimes take a home-based "circadian journey" along the lines of xkcd's comic about Taipei and Honolulu timezone-based housemates, scheduling or dodging meetings accordingly, advancing 1.25 hrs each day or so for a while.

The "journey" allows me to arrange to wake at dawn for a while when daylight is scarce.

I made a little tool. Tell it your last wake time. CJ generates a fresh iCal calendar journey with a sampling of xkcd-esque national time zone flags along the way. You re-add the .ical as a new calendar and erase the calendar or events until it starts to match your real sleep. https://observablehq.com/@thadk/circadian

thadk··on JSON Crack – A tool that generates graph diagrams from JSON objects
In case you have to do something like this in your code base, d3-hierarchy is gold.

Particularly this digraph() example: https://observablehq.com/@d3/visiting-a-d3-hierarchy. With a bit of modification away from the GraphViz format, the result fits straight into one of the many graph component visualization libraries like react-flow.

thadk··on Thunderbolt, Displayport and Docks
> USB4 10 Gbps (gen 2) uses 64b/66b = 9.697 Gbps

> USB4 20 Gbps (gen 3) uses 128b/132b = 19.39 Gbps

> Thunderbolt 3 10.3125Gbps uses 64b/66b = 10Gbps

> Thunderbolt 3 20.625Gbps uses 64b/66b = 20Gbps

Hah, seems Apple doesn't want to get sued again for bit distinctions so they're making sure the sticker unit matches the true rate with the standard they control more of. It's a bit like the decimal/binary distinction: https://blog.codinghorror.com/gigabyte-decimal-vs-binary/

thadk··on Digitizing 55,000 pages of civic meetings
There are several USA aggregator platforms that help with these kind of public meetings, but they are a bit regional.

Original city marked as *

https://www.documenters.org / https://www.citybureau.org covers Chicago*, Atlanta, Cleveland, Detroit, Fresno, Minneapolis, Omaha (backed by MuckRock products) and helps activate volunteers.

NYC* has an aggregator around their many Community Boards somewhere but it is not turning up in my searches.

https://councildataproject.org covers Seattle*, Portland, Alameda, Denver, etc.

I haven't seen one on the ANCs in DC yet.

thadk··on The Wood Database
I scraped the list of species from the main list page and put all of the woods into their phylogenetic tree: https://observablehq.com/@thadk/life (desktops only; use a preset list: wood-database.com; linear) or here's the PNG: https://www.dropbox.com/s/8uq8i5gyenp3t4x/wood-radial3.png?d...

Next step for someday is to replace phylotree.js with a D3 visualization on it which shows each image using the URL so you can see how the grains of the word relate according to the tree of trees.

thadk··on Open Food Facts – a food products database made by everyone, for everyone
Thanks, FooDB looks like a great start with 800 taxonomy scientific names of "foods": https://news.ycombinator.com/item?id=31898218#31901803 Open to any others too.
thadk··on Open Food Facts – a food products database made by everyone, for everyone
Ingredients in food are generally derived from particular plants or animals. Last year, I scraped the first 90,000 foods in OFF API for the taxonomic species/genus/family name of ingredients for the phylogenetic food visualization at https://observablehq.com/@thadk/life diagram (switch to "Fit to Size: Width" and "OpenFoodFacts Ingredients (first 90k)").

Unfortunately, only a small fraction had that property filled in. Is there a better source for taxonomic names in foods? For instance, I don't see it in UM-NCC sample files.

thadk··on U.S. plans trial of early detection blood tests for multiple cancers
CxO-level health insurance programs have been covering routine cancer-detecting liquid biopsies for at least 5 years, no?
thadk··on Contra Wirecutter on the IKEA air purifier
I have both the Wirecutter pick which I've had for 7-8 years and the Förnuftig and I stopped using the Förnuftig after 2 months because it doesn't have a pre-filter and once dirty/filled, it cannot be recovered without replacing the whole filter. It also seems weak—the room can remain dusty indefinitely with it on. The Coway filter is just night-and-day more capable.

That said, in 2012, IKEA sold an amazing year-long-capacity-no-maintenance fiberglass German "Flimmer" filter like the ones they use over-head in their stores to keep products dust-free. That was incredible but wasn't marketed well and its replacement filters were discontinued in 2015: https://www.nytimes.com/2013/09/05/garden/sure-it-purifies-a...

thadk··on Ffmpeg Buddy
I wonder if this could be used to make video HDR versions of D3 visualizations, making more colors addressable at the cost of reducing interactivity after baking the movie file?
thadk··on SomaFM
The SomaFM macOS/iOS apps, of course, use SQLite to save favorited songs by station.

I always donate to Soma too, but it is nice that once curated, you can often also enjoy, export, or transfer artist tracks you love to on demand services using Datasette or otherwise: `/Users/{USER}/Library/Containers/com.somafm.somafmmac/Data/Library/Application\ Support/SomaFM/SomaFM.sqlite3.db` or `/Users/{USER}/Library/Containers/SomaFM/Data/Library/Application\ Support/SomaFM/SomaFM.sqlite3.db`

thadk··on Tracking Heat Records in 400 U.S. Cities
I have interacted with this site and its ownership a fair amount online. My guess would be they're trying to gauge true interest in topics so they can refine their editorial perspective.

And $100/mo might not seem so much if it can make debunking interest-spoofing attempts more trivial, especially if there is ever any kind of bonus to the visualization authors for having a big hit.

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