Economics.
The solar panels would be more expensive than bunker fuel.
Sails would be cheaper.
it might be fun to try to make a modern wooden sailing ship cargo fleet.
maybe with an emergency diesel engine in the back.
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Would make more sense to produce chemical from solar energy harvested on the water fuels, collect the fuel and then use this with ships
i wish there was more talk about this. it seems i heard a lot about making hydrocarbons from co2 in the air + solar or algae a couple years ago. if your hydrocarbons are made this way it seems they would be carbon neutral.
i'm guessing there's more research to make it feasable since i haven't seen "carbon neutral gas alternative" at the local Chevron.
i would have given this guy credit if he compared cost of production for petro fuels when talking about energy debt.
also conflates power with energy, but fine.
if you talk about cost (dollar or kilowatt hour) per joule delivered to a vehicle and then compared the total cost of electric vs. the total cost of petro, i would listen. but he ignored the fact that petro fuels cost money, energy and water to produce.
and there some things electric motors can do that ice can't. an electric ekranoplan isn't too infeasible, but we know from soviet studies you can't keep salt water out of an aspirated motor when you're that close to the water's surface. turns out electric motors can be sealed against water.
and dissing physicists? wtf? makes me think he failed out of an engineering physics degree cause he didn't understand math. as we used to say, the limit of a bs or be as gpa approaches zero is bba.
Back in the day Convex Computer Corporation was laying off a large fraction of its staff.
The plan was to come into the warroom and just hang out. Your manager would come and get you and take you into a private conference room to discuss your package with an HR specialist. The packages were pretty decent, at least.
In gallows humor I drew some stick figures on a white board for each of my team with their unix logins below them. As people were RIFfed, I would go over and put a universal red circle and slash "no" symbol around the figures who were laid off.
My time came and I marked myself as a "no" and handed the red marker to a co-worker.
I remember being a little ticked off at my manager, but when I came back to say goodbye to everyone I noticed his figure / login name had been exed out. The last thing he did before metaphorically being shot in the head was to metaphorically strangle half his children.
"What was deluxe became debris, I never questioned loyalty. But this dead end demolishes the dream of an open highway."
> The average Amazon engineer is not expected to have awareness of CS fundamentals that go beyond LeetCode-y challenges
I find this a bit unsettling. There are dozens of great CS schools in the US. Even non-elite BSc programs in EU sometimes teach formal methods.
There are also some good introductory books now, e.g. [1]. Perhaps its time to interview more on concepts and less on algorithmic tricks favored by LeetCode?
I doubt current undergrads can't go beyond LeetCode-like challenges.
[1] Formal Methods, An Appetizer. https://link.springer.com/book/10.1007/978-3-030-05156-3
Modern CS programs teach to what they perceive to be the interview their students will encounter after graduation: what is a tree data structure, how to craft a SQL query and how to calculate a CRC with a python library. More advanced CS/CE departments still teach discrete math and compilers/parsing for students intending to go to grad schools.
My experience with recent CS grads is it's easier to hire Art and Political Science grads and take the time to teach them programming and all it's fundamentals. At least they won't argue with you when you tell them not to use regexes to parse HTML.
retrocryptid commented on · Posted by u/rabidonrails
Maybe we'll see a boost in worker productivity.
I couldn't find reference to quintrophy or quintrophy1x in the IACR eprint archive (or on a google search.) And I think you forgot the references to external review.
The Cold War era was the dream of engineers of all participant countries, I figured. Are we close to another one? Just wanna make sure it doesn't turn into a hot one.
yup, there was just so much money flowing around. it was like the dot com era for aeronautical engineers and machinists.
Not sure what’s the point in attacking physicists, either. They should be the first ones pointing this out and I can’t imagine one not nodding in agreement.
but mixing your comment with a few others, maybe a nuke plant on the ground that cracks the co2 in the atmosphere to make carbon neutral hydrocarbon fuel.