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Comments

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Exxon and Russian Operation Discovers Oil Field Larger Than the Gulf of Mexico

WalksOnDirt Re:In highschool (190 comments)

The Russian find is 300 or so metres down and thus it is easy oil.

In the Kara Sea? That is a much rougher place to work than in the Gulf of Mexico. I'm sure they will eventually manage, but I wouldn't call it easy.

yesterday
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Update: At Least 31 People Feared Dead After Japan Volcano Erupts

WalksOnDirt Re:No warning? (53 comments)

Pretty smart. There were Italian scientists convicted of not warning about an earthquake.

yesterday
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US Revamping Its Nuclear Arsenal

WalksOnDirt Re:I Voted For Kodos. (335 comments)

I voted for Kang.

Really, he was on the ballot.

about a week ago
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Is the Tesla Model 3 Actually Going To Cost $50,000?

WalksOnDirt Re:Maybe 40k (393 comments)

In their conference call Tesla stated their intention was to continue using cylindrical cells, but that the size would be increased by about 30%. Sorry, I didn't save the link.

about two weeks ago
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Wave Power Fails To Live Up To Promise

WalksOnDirt Re:Golden opportunity missed... (198 comments)

The problem with wave farms is that they harness the gravitational power between Earth and the Moon.

No, that would be tidal power. The wave energy comes mostly from the wind. The main side effect that occurs to me would be less coastal erosion.

about two weeks ago
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Is the Tesla Model 3 Actually Going To Cost $50,000?

WalksOnDirt Re:Maybe 40k (393 comments)

Nobody is using the size of cells that Tesla claims to be interested in producing. If they get cheap enough companies might design some products around them, but, for example, they will be too fat for a cell phone.

Of course Tesla might make other sizes, but I doubt they will be in any hurry to do that.

about two weeks ago
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To Really Cut Emissions, We Need Electric Buses, Not Just Electric Cars

WalksOnDirt Re:Container ships (491 comments)

Listing two obvious fallacies doesn't prove the initial statement is one, although at best it could only be true of sulfur based pollution. Of course, sulfur dioxide helps keep the planet cool anyhow, so maybe we shouldn't count it if it is released in the open ocean.

about three weeks ago
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To Really Cut Emissions, We Need Electric Buses, Not Just Electric Cars

WalksOnDirt Buy a better bus! (491 comments)

A 30 mile range? What kind junk are the buying?

A BYD electric bus has a nominal range of 155 miles. It sounds much more reasonable to me.

about three weeks ago
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L.A. Times National Security Reporter Cleared Stories With CIA Before Publishing

WalksOnDirt Re:No suprise (188 comments)

This is the New York Times.

No, it is the Los Angeles Times. There are many Times in the world, the summary should reflect that.

about three weeks ago
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Reno Selected For Tesla Motors Battery Factory

WalksOnDirt Re:Don't they use a lot of water (157 comments)

They need Electrolytes...

The electrolytes used in lithium ion batteries don't use water. Water is unstable at those voltages.

Of course, the factory must use some water, if only for the employees drinking. I don't know how much, though. Perhaps it is worth mentioning that there appears to be a small river near the site.

about a month ago
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Climate Scientist Pioneer Talks About the Furture of Geoengineering

WalksOnDirt CDR yes, SRM no (140 comments)

I don't see any problems with carbon dioxide removal, aside from potential local environmental problems. The methods include reforestation, adding iron to the ocean and grinding up serpentine.

Solar radiation management, like adding sulfates to the air, has lots of global environmental effects, and it doesn't do anything about acidification of the oceans.

It's best to consider these separately.

about a month ago
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Seagate Ships First 8 Terabyte Hard Drive

WalksOnDirt Re:Can we get a tape drive to back this up? (316 comments)

Tapes has a crapload of drawbacks, write speed, read speed, the fact it's sequential (random access is painful) but it remains popular because you can drop it, smash it, submerge and then freeze it and all you have to do is roll the tape into a new case.

Maybe they have fixed it, but I heard some old stories about dropping tapes corrupting them.

about a month ago
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How Argonne National Lab Will Make Electric Cars Cheaper

WalksOnDirt Re:Economic risk (143 comments)

The lithium in a modern battery is not aqueous, which is the default in your table. What the result would be in a modern electrolyte, I don't know.

about a month ago
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How Argonne National Lab Will Make Electric Cars Cheaper

WalksOnDirt Re:Economic risk (143 comments)

Nicely written post, but you don't know what you're talking about.

Hydrogen is not the strongest reducing agent amount the stable elements. If you go by electronegativity it is cesium. Cesium is rather heavy, though.

Lithium would make a very good cathode (if we could just control the dendrites), but it's not what lithium-ion batteries use. Transition metal compounds are far from ideal for cathodes, but they have the advantage that we can make them work pretty well.

Lithium-sulfur is potentially the next battery after lithium-ion, if only we can make them last long enough.

about a month ago
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No, a Huge Asteroid Is Not "Set To Wipe Out Life On Earth In 2880"

WalksOnDirt Re:Asteroids are a threat - let's deal with them (123 comments)

This asteroid is only around 1 km in diameter. An impact would be distinctly annoying, but civilization, and most people, should survive.

about a month and a half ago
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Stanford Team Creates Stable Lithium Anode Using Honeycomb Film

WalksOnDirt Re:Stable? (119 comments)

At one cycle a day that will take awhile.

Cui has previously touted results of a different battery after only eight cycles, so 150 is quite an improvement. They are still a long way from having something ready to sell, and they don't claim otherwise.

about 2 months ago
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Stanford Team Creates Stable Lithium Anode Using Honeycomb Film

WalksOnDirt Re:Stable? (119 comments)

I think you ask too little. What get me are quotes like this;

The team is looking at a price point of $25,000 for an EV battery range of 300 miles, which would be competitive with a 40 mpg gasmobile.

That's not actually what the team said, it is a paraphrase of something Chu said about what is desirable in an EV. The author apologizes in the first comment.

Don't blame the researchers for the idiocy of the article's author.

about 2 months ago
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Stanford Team Creates Stable Lithium Anode Using Honeycomb Film

WalksOnDirt Re:Stable? (119 comments)

150 charge/discharge cycles is not very much. That is only 5 months use.

Initial testing of batteries is usually done at C/20, or less than one cycle per day. I don't know if they sped this up any, but it would still take quite a while for 150 cycles. You're asking too much from a research project.

about 2 months ago

Submissions

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Callisto May Explode

WalksOnDirt WalksOnDirt writes  |  more than 6 years ago

WalksOnDirt (704461) writes "Russian scientist Eduard Drobyshevsky suggests in Pravda that the conductive icy shells of the moons of outer planets can under go electrolysis because of movement through magnetic fields. The resulting hydrogen and oxygen can explode, endangering Earth. He says Titan's explosion 10,000 years ago created Saturn's rings, and when Calisto goes it will lead to nuclear winters on Earth."

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