frederikvs

10 ms·

31.
by frederikvs 4y ago
To me, the big lesson here is : if your company wants to offer a free service, be sure that you can keep offering that for free. Any limitation or restriction you put in place later will result in bad press. Offer the free service, but put
32.
by frederikvs 4y ago
Yes, disabling promotional notifications is an option - except if the app developer applies the dark pattern described in the article. But even when it works, the app developer just goes on their merry way, annoying other people too. I beli
33.
by frederikvs 4y ago
If an app gives me spammy promotional notifications, it either A) gets uninstalled (if I don't particularly care about the app), B) gets a 1-star review with a clear comment about the notifications, or C) all of the above. The app I us
34.
by frederikvs 4y ago
Yes, e.g. if you look at "rebreather" diving equipment, it's essentially a backpack life support system, including CO2 scrubber.
35.
by frederikvs 4y ago
It looks like Monoethanolamine (MEA) can be reused after a regeneration cycle. Of course, you will need somewhere to dump the CO2. https://en.wikipedia.org/wiki/Ethanolamine#Gas_stream_scrubb...
36.
by frederikvs 4y ago
Perhaps it makes more sense to have a few big vans over one big truck, when it comes to manoeuvrability in small spaces. A big van is more manoeuvrable than a full-sized truck can ever be, even with multi-wheel steering - you still have a h
37.
by frederikvs 4y ago
I don't think remembering rm is the issue. It's remembering all the options in all their variations. Take the ps command. I tend to use it as "ps aux" - but I have no idea what the a, the u, or the x stand for individual
38.
by frederikvs 4y ago
I stand corrected, thank you! To clarify, I misremembered Factfulness. The book actually talks about "developed" versus "developing". In my memory I jumbled that up with "third world".
39.
by frederikvs 4y ago
Tangent, but it turns out terms like "third world" are no longer accurate. If memory serves, this is explained in the book Factfulness. A highly recommended read, by the way. A few decades ago, there was a group of wealthy countri
40.
Crew-4 Mission – Launch(youtube.com)
2 points by frederikvs 4y ago|0 comments
41.
by frederikvs 4y ago
In my experience, the question "Why not just do X?" can have 2 intentions and interpretations. One meaning is "Obviously X is the better solution, and you're dumb for not doing X". The other meaning is "Naively
42.
by frederikvs 4y ago
SpaceX's first stage lands itself, either on a droneship or on a landing pad near the launch site. The payload fairings splash down in the ocean, and get fished up for reuse. The second stage is not recovered. Rocket lab just has a dif
43.
by frederikvs 4y ago
The interesting thing about this technology, is that it's a way to bypass the rocket equation - in theory at least. There are a lot of practical objections, not the least of which is the fact that they've had to add so much heat s
44.
by frederikvs 4y ago
Cats can't be bothered to evolve opposable thumbs. They have human staff to take care of anything that requires an opposable thumb, why would they bother doing it themselves?
45.
by frederikvs 5y ago
See also : the Sam Vimes "Boots" theory of socioeconomic unfairness.
46.
by frederikvs 5y ago
There is a similar folk belief to determine where to build a house. If you have a plot of land, have a herd of sheep graze there. The spot they choose to sleep is where you should build your house. This of course assumes that you have a lar
47.
by frederikvs 5y ago
For some people, a $1000+ phone comes with bragging rights. The charger? Not so much. I'd wager that's one reason some people buy the expensive phone and the cheap charger. The other is simply that most people can't tell the
48.
How Does the Sunshield Work on the James Webb Space Telescope?(youtube.com)
3 points by frederikvs 5y ago|0 comments
49.
by frederikvs 5y ago
Not really : Peltier-based devices like this add (some) resistance to the heat flow. This added resistance means the air conditioner (or any heat pump, e.g. a fridge) gets less efficient. I think the energy captured by the device will alway
50.
by frederikvs 5y ago
In e.g. a monarchy, the head of state is the king or queen. In many monarchies these days, this person tends to have very little actual power. The leader of a country is the person leading it, e.g. a president, prime minister, or similar. S
51.
by frederikvs 5y ago
I suspect a large part of it is caused by facial expressions and how the people pose. Having your picture taken was very serious business, so no smiles were allowed. Show your most serious, regal pose. If you look at the "Happiest man
52.
by frederikvs 5y ago
Search the web for "macropad", you should find what you need. If you go for something QMK-based, you can program it any way you want.
53.
by frederikvs 5y ago
or it went down by another 20%, everybody at first thinking there's something wrong with their internet connection.
54.
by frederikvs 5y ago
I've arranged for my employer to sponsor a few small projects via Patreon. We chose some projects that we found especially useful, but that are small enough that our donation could make a difference.
55.
by frederikvs 5y ago
I think I read somewhere that they were planning to open up the specs of those modular ports. That may alleviate some of the points you bring up. (Can't find the source right now though.) In what way do they limit the USB-C they pass t
56.
by frederikvs 5y ago
For those looking to build a simple GUI, another option is Gooey [0]. It takes your arparse declarations and builds a simple GUI based on that. Gooey is probably easier to set up, but PySimpleGUI looks like it's more flexible and power
57.
by frederikvs 5y ago
You may want to properly attribute that quote - it's from George Bernard Shaw.
58.
by frederikvs 5y ago
Interesting side note : the people who built the Lunokhod moon rover were later called in to help with the Chernobyl cleanup. They had experience with remote-controlled radiation-hardened rovers. There's an interesting documentary on C
59.
by frederikvs 5y ago
Could you elaborate on how dissolved limestone does not emit CO2? Limestone is CaCO3. The calcium gets dissolved, ready to be used by your process. The Oxygen, I don't care much whether it stays in the water or goes into the atmosphere
60.
by frederikvs 5y ago
If I understand correctly, you extract both Calcium and CO2 from ocean water, and use this as input for making cement. The ocean will absorb the CO2 from the air, and that's a win. Where does the Calcium in the oceans come from? If you

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