Recent comments in /f/technology

anti-torque t1_j8s8ogr wrote

>No gravity, huh? I hope the people involved in the study are a little sharper than the author of this piece...

It's written by an engineer, not an astronomer.

edit: Also, I imagine the movement of gaseous oxygen would only occur in 14 day spurts, with the following 14 days being optimal for liquid o2 to be piped.

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happyscrappy t1_j8s7wj5 wrote

> Tesla WANTS their charging to be the standardized mechanism for EVs

There already is a standard. Coming by and saying "switch to me thing" is just an excuse.

> They opened up their patents

No they didn't. You got fooled by Musk's false bravado. They offer a patent swap. You can use their patents for free for electric car use in exchange for allowing them to use all your patets for free for any use.

It's an offer of a patent swap, and a bad deal at that. It's not any kind of good deal for a company which has a patent portfolio.

> Tesla has the biggest network and most vehicles, so it'd make sense to use that format.

Tesla has the single biggest network, but the number of non-Tesla chargers greatly exceeds the number of Tesla chargers. So the biggest interoperable network is not Tesla.

And switching to Tesla's connector after 10 years of using the standard one would be ridiculous. It would hurt everyone who made an investment in the standard. That includes car owners, charger makers and those who installed chargers (hotels, etc.).

Tesla switched to the standard connector in Europe with the Model 3. Because the EU forced them to. It's worked out great. The logical thing is to use the standard connector in the US also.

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FlingingGoronGonads OP t1_j8s6scv wrote

> Nasa’s current research efforts for in-situ oxygen extraction is focused on “bottling” the oxygen in compressed gas tanks or to liquefy and store it in dewars, which are insulated containers used for storing cryogens. Either approach requires moving tanks or dewars to various facilities for use. The process of moving this oxygen on rovers could be more energy intensive than the extraction process itself and could be the most expensive aspect of obtaining in-situ oxygen for use on the Moon.

> For this design study, Lunar Resources and Wood will do a system-level design study of LSPoP. They will explore the feasibility of building pipeline elements on the Moon with the metals found there, which will be extracted using a process called molten regolith electrolysis (MRE) [my emphasis added]. Lunar regolith is the unconsolidated sand-like debris on the surface of the Moon. Full scale test systems of this process on Earth have successfully extracted high-purity iron, aluminum and silicon.

> The starting concept is for a 3.1-mile (five kilometer) pipeline to transport oxygen gas from an oxygen production source to an oxygen storage/liquification plant near a lunar base.

It's not clear to me why you would build essential infrastructure like O2 production at any significant distance from a habitat. Perhaps "pipeline" is giving me the wrong impression here, but I do know this - the same regolith or sources you are processing to extract the metals also give you O2 - silicate rock is not exactly low in oxygen.

The article is fairly informative, but does contain this bit of silliness:

> Extracting oxygen ice and other lunar materials is one thing. Transporting it around a rock floating in space with no gravity or atmosphere is a much more complicated task.

No gravity, huh? I hope the people involved in the study are a little sharper than the author of this piece...

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Mikel_S t1_j8s69fk wrote

I think it is using harm in a different way than physical harm. Its later descriptions of what it might do if asked to disobey its rules are all things that might "harm" somebody, but only insofar as it makes their answers incorrect. So essentially it's saying it might lie to you if you try to make it break its rules, and it doesn't care if that hurts you.

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mazlix t1_j8s49qs wrote

You’d have to pay ordinary income on that salary though.

Donating stock has a different advantage though. Normally you pay cap gains but if you donate the shares themselves you don’t pay cap gains. This way you can sort of profit from a rise in share price without actually dumping all that extra liquidity into the market. For an ordinary person selling a stock doesn’t move the market but for Elon it can

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