I wonder why Chloroethane / ethyl chloride was chosen. I don't think I've ever seen this for anything, other than a synthesis precursor to useful stuff.
Yes, the AI models are so useful in areas where you are an expert and can guide it in a useful way. I use multiple chats delay to help figure out client projects.
I suspect eutectic liquid InGa alloys would work, they stop wetting the glass when you are under vacuum. Although mercury is safe in the tube, just don't break the glass.
You could actually move very large quantities of water around and probably have a measurable impact. Like draining the California central valley aquifer.
At my previous job we made >1m wide 8um thick copper foil by electroplating it onto a giant titanium drum from blue copper sulfate solution. It was quite impressive.
But there are 100+ items for other people on the route on each delivery truck each day. So maybe better than individuals driving to the store. If you don't drive to the store that will for sure be better but thats abnormal in america.
There is a legitimate concern with space junk hitting useful stuff or even manned spacecraft but I think space is big and the sky won't appear bright soon. Not all satellites are that reflective and they need to reflect the sun, they don't just glow visibly.
Mine were like this is 2005. The math classes also didn't allow calculators, engineering classes did, but not graphing ones that could store information.
There are things like this: https://www.adafruit.com/product/5501 haven't used it, trying to find one for my mini pc, mostly so I can use a usb c power bank as a tiny DC ups.
If you are in the US then you can go to a hot place in the south west, even Eastern WA/OR or the California central valley when its >105F outside the wind blows and it feels like a hair drier or opening the oven, its not a cool breeze.
Yes, you would also audit the quality system for your suppliers to confirm they are sufficiently controlling for upstream changes. In theory you can have all your ducks in a row.
In medical device manufacturing you have systems in place that your vendors have to disclose changes to their manufacturing process that hopefully can catch stuff like this before people die. I can see how minute stuff gets easily passed off as not an important change.
I've had this situation and basically just had to throw out stuff that was written because its completely terrible/wrong. Either start again or just give up.
covalent.com lylegordon.ca