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World's First Ammonia-Fueled Ship Hits a Snag in c/[email protected]
[–] [email protected] 2 points 1 week ago (1 children)

Those are fair considerations. However, I think in the context of a massive cargo ship, a penalty on energy density might be worth it to avoid the risks associated with ammonia releases. Of course, a nuclear reactor powered ship would run on the highest energy density fuel and is arguably safer to operate than a ship that runs on ammonia.

World's First Ammonia-Fueled Ship Hits a Snag in c/[email protected]
[–] [email protected] 3 points 1 week ago

Hydrogen is definetly harder to store than ammonia and it takes a lot of energy to compress or liquify it.

It takes a lot of energy to convert hydrogen to ammonia and whatever challenges there are to handling and storing hydrogen, ammonia has its own. At least a hydrogen release isn't a toxic, polluting event.

And I certainly don’t want commercial nuclear ships, because companies will just create “independent” companies that will “mysteriously” go bankrupt once a ship reaches end of life and needs to be decontaminated.

So the taxpayer would have to pay for the decomissioning costs.

Yes. Let's just get ahead of the game and nationalize shipping.

World's First Ammonia-Fueled Ship Hits a Snag in c/[email protected]
[–] [email protected] 4 points 1 week ago

Hydrogen will leak through a latex balloon, but it is not going to leak through the steel wall of a pressure vessel. The leak risk occurs at the various fitting connections in a hydrogen system, which is overcome by using the proper fittings.

World's First Ammonia-Fueled Ship Hits a Snag in c/[email protected]
[–] [email protected] 1 points 1 week ago

That is an interesting article, but the authors are clear that they don't know what to expect for hydrogen leakage in a developed hydrogen economy. Sure, hydrogen might be a greenhouse gas, but you can't really compare it to carbon dioxide because that's a waste product that we actively dispose of to the atmosphere. You can't really compare it to methane either because it's naturally abundant and the LEL is much higher. Relatively leaky valves and fittings are unfortunately acceptable in natural gas service. In other words, hydrogen leakage is barely tolerable, so we have no choice but to employ technology and techniques to prevent it.

World's First Ammonia-Fueled Ship Hits a Snag in c/[email protected]
[–] [email protected] 4 points 1 week ago (6 children)

It does not leak like crazy. I know because I have experience engineering and operating high pressure electrolysis, storage, and fueling systems for hydrogen. Even when it does leak, what's nice about hydrogen is that it's not toxic to humans or pollutive to the environment, unlike ammonia or fossil fuels. Hydrogen leaks are easily mitigated with proven detection and ventilation techniques.

World's First Ammonia-Fueled Ship Hits a Snag in c/[email protected]
[–] [email protected] 2 points 1 week ago (2 children)

The serious issues in the articles you linked are essentially red tape and public perception, which have to be surmountable if we're taking global warming seriously.

Tesla Cybertruck prevented rescue of 3 victims in crash, authorities say – NBC Bay Area in c/[email protected]
[–] [email protected] 1 points 1 week ago

UPDATE: the battery fire obviously didn't help, but according to new reporting it turns out that the Cybertruck really did trap the victims inside.

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NIH Cuts Hit Young Scientists the Hardest (timmermanreport.com)
 

cross-posted from: https://lemmy.crimedad.work/post/742008

Part of a speech by Nobel Prize winner Dr. David Baker regarding the recent uncertainty regarding research funding in the US.

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Testimony Reveals Doors Would Not Open on Cybertruck That Caught Fire in Piedmont, Killing Three (sfist.com)
World's First Ammonia-Fueled Ship Hits a Snag in c/[email protected]
[–] [email protected] 6 points 1 week ago (18 children)

Why run ammonia when you can just run liquid hydrogen? Why run liquid hydrogen when you can just run a nuclear reactor?

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NIH Cuts Hit Young Scientists the Hardest (timmermanreport.com)
 

Part of a speech by Nobel Prize winner Dr. David Baker regarding the recent uncertainty regarding research funding in the US.

Some Cybertruck Owners Say Their Trucks Are Shedding Body Panels; One Thinks He Knows Why in c/[email protected]
[–] [email protected] 1 points 1 week ago

Yes. Windshields are important, heavy components which are fastened the the exteriors of automobiles with glue.

Some Cybertruck Owners Say Their Trucks Are Shedding Body Panels; One Thinks He Knows Why in c/[email protected]
[–] [email protected] 1 points 2 weeks ago (2 children)

Windshields are the big one. This industry article provides a summary of adhesive use in auto manufacturing.

Thermal runaway prevents rescue of 3 victims in crash, authorities say in c/[email protected]
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Thermal runaway prevents rescue of 3 victims in crash, authorities say (www.nbcbayarea.com)
submitted 3 weeks ago* (last edited 1 week ago) by [email protected] to c/[email protected]
27 comments fedilink
 

UPDATE: the battery fire obviously didn't help, but according to new reporting it turns out that the Cybertruck really did trap the victims inside.

cross-posted from: https://lemmy.crimedad.work/post/620960

This accident could be a scene in a horror movie.

I'm not a Tesla fan by any measure, but I edited the headline for this post. The original headline made it seem like a specific feature of the Cybertruck trapped the victims, but then the article explains it was really that the battery was burning so fiercely that the police just couldn't free them. The deadly feature of the accident was the lithium battery, which is common to many makes and manufacturers of EVs.

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Thermal runaway prevents rescue of 3 victims in crash, authorities say (www.nbcbayarea.com)
 

This accident could be a scene in a horror movie.

I'm not a Tesla fan by any measure, but I edited the headline for this post. The original headline made it seem like a specific feature of the Cybertruck trapped the victims, but then the article explains it was really that the battery was burning so fiercely that the police just couldn't free them. The deadly feature of the accident was the lithium battery, which is common to many makes and manufacturers of EVs.

Tesla Installing Countermeasures as People Are Hacking the Cables Off Superchargers in c/[email protected]
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UConn faculty member charged with larceny for alleged use of grants funds for pricey personal travel (www.courant.com)
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UConn faculty member charged with larceny for alleged use of grants funds for pricey personal travel (www.courant.com)
1
Actor Gene Hackman and his wife Betsy Arakawa found dead in their New Mexico home, police say | CNN (www.cnn.com)
1
Goya Foods CEO, Bob Unanue, Announces Next Chapter (www.prnewswire.com)
 

cross-posted from: https://lemmy.crimedad.work/post/564862

Nothing to see here, folks.

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What if there was a health tracking device that you swallow? (pixelfed.crimedad.work)
 

cross-posted from: https://pixelfed.crimedad.work/p/crimedad/799722447799273696

What if there was a health tracking device that you swallow?

Smart watches and fitness bands can be cumbersome and unstylish. Instead of wearing one of these devices, why not put them in an ingestible package? From inside of you, it could probably track more health metrics than from a wrist worn platform. When it gets to the end of your digestive track, you would just take a seat on a toilet equipped with an automatic cleaning and recovery module. Or, all of the devices could be collected for refurbishment at the water treatment plant.

#CompanyTime

@[email protected]

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Some Cybertruck Owners Say Their Trucks Are Shedding Body Panels; One Thinks He Knows Why (www.roadandtrack.com)
 

cross-posted from: https://lemmy.crimedad.work/post/542998

"It does suck, because everybody kind of makes fun of the Cybertruck. To the outside person, it's kind of weird, it's ugly, whatever. Once you actually get in it, drive it, you realize it's pretty frickin' cool," he says. "It's kind of been sad, because I've been trying to prove to people that it's a really awesome truck that's not falling apart, and then mine starts to fall apart, so it's just... Yeah, it's kind of unfortunate and sad."

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Some Cybertruck Owners Say Their Trucks Are Shedding Body Panels; One Thinks He Knows Why (www.roadandtrack.com)
 

cross-posted from: https://lemmy.crimedad.work/post/542998

"It does suck, because everybody kind of makes fun of the Cybertruck. To the outside person, it's kind of weird, it's ugly, whatever. Once you actually get in it, drive it, you realize it's pretty frickin' cool," he says. "It's kind of been sad, because I've been trying to prove to people that it's a really awesome truck that's not falling apart, and then mine starts to fall apart, so it's just... Yeah, it's kind of unfortunate and sad."

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