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Comment: Re: Not just Reno (Score 1) 438

by compro01 (#47900385) Attached to: If Tesla Can Run Its Gigafactory On 100% Renewables, Why Can't Others?

its just a simple idea I have always considered; loading electrical energy into physical potential energy by way of working against gravity. Maybe, instead, just run a big heavy chunk of metal up a notched pole? Then release it to spin a worm gear, to a large cog, then big generator as it slowly drops?

You'd still have the exact same issue with the amount of mass and/or height needed. Mass x height x 9.8m/s^2. For a kilowatt-hour of storage, mass x height needs to equal about 600,000. Gravity-based energy storage simply requires a lot of both for any worthwhile amount of energy.

Comment: Re:Credit System (Score 2) 438

by compro01 (#47887881) Attached to: If Tesla Can Run Its Gigafactory On 100% Renewables, Why Can't Others?

Banks of batteries are expensive and take up a lot of space. You'd need to provide several megawatts for several hours. That would require hundreds of 85kWh car battery packs.

And they'll be producing several hundred thousand such packs annually once the factory is operational.

Also, it's going to be a 10 million square-foot facility, with a few hundred more empty acres around it. I don't think they'll be pressed for space.

Comment: Re:Okay... and? (Score 1) 316

by compro01 (#47740247) Attached to: For Microsoft, $93B Abroad Means Avoiding $30B Tax Hit

That's very much incorrect. It's treated as a deduction

Read the site.

If you paid or accrued foreign taxes to a foreign country on foreign source income and are subject to U.S. tax on the same income, you may be able to take either a credit or an itemized deduction for those taxes.

You're assuming it is always option 2 (acts as a deduction), and ignoring option 1 (acts as a credit).

Comment: Re:Was she cured? (Score 2) 126

by compro01 (#47432721) Attached to: Child Thought To Be Cured of HIV Relapses, Tests Positive Again

Seems to me stupid to say a person is cured if they have to keep taking meds to prevent a relapse.
By that standard insulin is a cure for diabetes.

They thought she might have been cured as she went two years without the meds without suffering a relapse. Typically, a relapse occurs within weeks of discontinuing the medication.

But that ended up bring wrong, as she eventually did relapse, so now they need to figure out why it took so long for that to happen.

Computers can figure out all kinds of problems, except the things in the world that just don't add up.

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