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No More Lee-Enfield: Canada's Rangers To Get a Tech Upgrade

compro01 Re:AR-15 (231 comments)

Not likely. They'll be going with another bolt action rifle, almost certainly chambered in 7.62x51mm.

The Rangers have no need for automatic fire and bolt action is more reliable when dealing with arctic conditions.

yesterday
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Wind Power Is Cheaper Than Coal, Leaked Report Shows

compro01 Re:What about... (607 comments)

I don't think they're expecting to even break even off this particular unit.

It's basically a full scale prototype for the capture tech to see if the tech actually works at a reasonable operating cost. If it does, they'll roll it out to the other coal plants, at lower cost now that they know what they're doing with it.

If it doesn't pan out, they're going to have to find something else to provide power, as the coal plants will have to be shut down when they hit the 50 year mark, as there's no way for them to fit under the CO2 emissions regulations* without the capture tech. And that 50 year mark isn't all that far away.

In the latter case, unit 4 at Boundary Dam will shut down in 2020, followed by unit 5 in 2023, unit 6 in 2028, then Poplar River's units in 2031 and 2033. That's nearly 1/3rd of their generation capacity and most of their base load.

*Existing power plants are grandfathered in. The CO2 regs don't apply to them until 50 years after their commissioning date.

5 days ago
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Wind Power Is Cheaper Than Coal, Leaked Report Shows

compro01 Re:What about... (607 comments)

It mentions that there is a plant under construction in Kemper County, Mississippi, that should capture more than half of its CO2 emissions and redirect them to an oil field.

One of the units at Saskpower's Boundary Dam plant up here just finished being converted to carbon capture and is operating now. It supposedly captures 90% of CO2 emissions.

about a week ago
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PETA Is Not Happy That Google Used a Camel To Get a Desert "StreetView"

compro01 Re:PETA won't be happy until all animals are extin (367 comments)

Is animal-sourced insulin even used anymore? I was under the impression that it was cheaper to produce it using modified bacteria.

about a week ago
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Scientists Coax Human Embryonic Stem Cells Into Making Insulin

compro01 Re:Congratulations! (100 comments)

This wouldn't be a one-off cure for type 1. Type 1 is an autoimmune disease. Any replacement pancreas would get trashed same as the originals did. You'd either need to keep replacing them or take immunosupressants for the rest of your life.

about two weeks ago
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Conservative Groups Accuse FCC of Helping Net Neutrality Advocates File Comments

compro01 Re:Conservatives crying "no fair"? (283 comments)

Not necessarily. It depends on which part of the 5-way alliance that forms current American conservatism we're talking about.

You've got the business conservatives who seek low taxes and low regulation, the foreign policy hawks who seek a strong defense budget, the social conservatives who fear moral anarchy, the racists and nativists worried about immigration and affirmative action, and the elderly retirees who rely on Social Security and Medicare.

about two weeks ago
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Conservative Groups Accuse FCC of Helping Net Neutrality Advocates File Comments

compro01 Re:Conservatives crying "no fair"? (283 comments)

Yes, but it's only supposed to be unfair in their favour. Anything else is "Against God's Will" or "Against the will of the Market".

about two weeks ago
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IBM Solar Concentrator Can Produce12kW/day, Clean Water, and AC

compro01 Re:Plain solar panels cost less (268 comments)

Mirrors are a whole lot cheaper than PVs.

Flat mirrors, maybe

Which is what this thing uses.

about three weeks ago
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IBM Solar Concentrator Can Produce12kW/day, Clean Water, and AC

compro01 Re:OK (268 comments)

They are doing some funny math to claim 80% efficiency, as that is almost double the current best efficiency achieved in a lab: https://en.wikipedia.org/wiki/...

And I'm pretty sure 80% efficiency is above the theoretical maximum too . . . .

Nothing funny about it. This thing is combined heat and power system. You get electricity directly from the cells, and in keeping the cells cool, you get hot water suitable for running an absorption chiller and desalinating.

about three weeks ago
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IBM Solar Concentrator Can Produce12kW/day, Clean Water, and AC

compro01 Re:OK (268 comments)

1.3KW per square metre is at the top of the atmosphere.

It's significantly less at ground level. You get about 1050W peak at high noon on a cloudless day at the equator and less as you go north or south from there.

about three weeks ago
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It's Banned Books Week; I recommend ...

compro01 Re:Ban the Bible and the Quoran (410 comments)

But the book never killed anyone, it's the readers.

I dunno. Some of those big illuminated editions are heavy enough to cause serious damage if they fall off a shelf onto someone.

about three weeks ago
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If Tesla Can Run Its Gigafactory On 100% Renewables, Why Can't Others?

compro01 Re: Not just Reno (444 comments)

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.

about a month ago
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If Tesla Can Run Its Gigafactory On 100% Renewables, Why Can't Others?

compro01 Re:Credit System (444 comments)

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.

about a month ago
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If Tesla Can Run Its Gigafactory On 100% Renewables, Why Can't Others?

compro01 Re: Not just Reno (444 comments)

Problem is that requires a lot of water, a lot of height, or both. Assuming 80% efficiency on your pump and generator, you'd need something on the order of 600,000 metre-litres of water per kilowatt hour of storage.

about a month ago
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UK Ham Radio Reg Plans To Drop 15 min Callsign Interval and Allow Encryption

compro01 Re:Scrap all the rules (104 comments)

There are many encrypted ham standards, PSK31 WSPR, WSJT, MAP65, Hellscriber, etc, etc.

Umm, unless I am managing to completely misunderstand something, those are not encryption, those are simply digital signals rather than analog.

about a month ago
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Ask Slashdot: What To Do About Repeated Internet Overbilling?

compro01 Re:DSL paload + ATM = 16% (355 comments)

No-class-action clauses have held up, all the way to the Supreme Court. See AT&T Mobility v. Concepcion.

about 2 months ago
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Ask Slashdot: What To Do About Repeated Internet Overbilling?

compro01 Re:DSL paload + ATM = 16% (355 comments)

Doesn't Comcast have a "You're not allowed to file a class action suit against us. Hahahaha." clause in their contracts?

about 2 months ago
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For Microsoft, $93B Abroad Means Avoiding $30B Tax Hit

compro01 Re:Okay... and? (316 comments)

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).

about 2 months ago
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Russia Cracks Down On Public Wi-Fi; Oracle Blocks Java Downloads In Russia

compro01 Re:Turkey? (254 comments)

Are you sure the US has sanctions on Turkey?

Had, yes. The USA had an arms embargo and miscellaneous other sanctions against Turkey from 1974 to 1980-ish, as a result of the Turkish invasion of Cyprus.

about 2 months ago
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Tesla and Panasonic Have Reached an Agreement On the Gigafactory

compro01 Re:What makes this a gigafactory? (95 comments)

According to Tesla, it will have as much production capacity as all current li-ion battery factories combined.

The giga does have some meaning, as the factory has a planned production of 35 gigawatt-hours of batteries per year.

about 3 months ago

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