Not far from my philosophy. If I'm being paid, I'll use whatever I'm getting paid to use. But on my own, I'll choose to learn tools that will be around for a long time, and won't get taken away by some rent-seeking company (i.e. open-source).
Can confirm it does happen. UK, both on my ThinkPad and a friend's MacBook when plugged in. It's a somewhat unavoidable side effect of the switching AC adapter designs - the output is isolated from the mains, but there is a tiny leakage current that can sometimes be felt as a "vibration". This is completely safe (far below the currents needed to cause harm) and no recall is needed.
If you replace the two prong plug on the AC adapter for a three prong cable, your MacBook case will be properly grounded and you won’t feel any vibration.
People are understandably much more amenable to Valve because the company as a whole behaves in a much more cooperative and pro-consumer way... e.g. Steam deck repair options, furthering Linux gaming, and Gaben's general philosophy.
Cult-like or not, I find it reasonable to support companies that do things which you agree with. Valve's non-adversarial approach to business (as opposed to many rent-seeking corps these days) probably helps that perception.
I've been learning about radios for a while, and this article explained one of the key questions I had: why can't you turn on and off some single frequency waveform faster to transmit data faster? (answer: changing amplitude messes with the spectrum and makes it no longer a single frequency...)
I tend to prefer these visual and intuitive explanations to the mathematically based ones usually given in lectures. The "open capacitor" example was something I hadn't thought of before.
The article you linked mentions that the rocket "crash" was a successful payload launch, it was the expended first stage that crashed. Without reusable rockets, this is the alternative to dumping your first stage in the ocean. Whether this is a reasonable design feature is a different discussion.
Did you watch the videos? They are launching these rockets over residential neighborhoods and one of them crashed near a home earlier this year. The first stage fell uncontrolled, into the ground, in a residential area.
Still, they are iterating. That may be crazy and they may not care about things like blowing up neighborhoods, but they are iterating, and I am not so naive as to think that their capabilities will remain static.
Isn't liquid oxygen cryogenic (boils at -183C)? The engineering of keeping that ...there... gets interesting fast, especially when dealing with all the cold (absorbed heat from expanding gas) and containing the pressure while also releasing oxygen slowly.
The oxygen gas is dissolved into a different liquid, some kind of perfluorate in this case. You can put more oxygen molecules in a given volume when dissolved in a liquid than if you just compress the gas.
But oxygen dissolved or otherwise absorbed in a material is fair game. Even without anything fancy, water can contain about 1% free oxygen, which is 8x what you could do with gaseous oxygen (which is in turn 5x what atmospheric mixture has).
And there are a lot of chemical reactions that can produce oxygen much better than 1%. The trick is going to be avoiding heat changes.
I have a Ring alarm. It has a battery backup and is powered by AC adaptor, so no need to turn off entire circuits (but no easy silence). All the sensors I have are wireless (not sure if they offer wired).
I would honestly do your box option. Stuff it in there with some pillows and leave it in the shed for a while.
Yeah, we’ve got a bunch of Ring stuff but not the interior alarm so I wasn’t sure how it worked. I suspected it might have a battery backup and, in that case, desperate times -> desperate measures.
