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Australian Physicists Build Reversible Tractor Beam

confused one Re:Pusher beam, not reversible tractor beam (70 comments)

Tractor is a machine, a traction engine, used to produce tractive force to move objects. -- it is not specifically limited to pulling.

2 days ago
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Australian Physicists Build Reversible Tractor Beam

confused one Re:Still a long way to go ... (70 comments)

You need improved lighting, you say? I have this light generating device, a photon torpedo.

2 days ago
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An Algorithm to End the Lines for Ice at Burning Man

confused one first mistake, ice? (331 comments)

So, you go to an event in the desert, and you expect to be able to buy ice? Why are you depending on ice in the first place. WTF people? It's hot and it's dry; that's why it's called a desert for fuck's sake. Learn a little independence and self reliance.

2 days ago
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Apple Doesn't Design For Yesterday

confused one Re:I call BS on this article. (369 comments)

I'm not disagreeing with you in principle; but, the driver signing issue isn't Microsoft's. It's the hardware vendor's fault. Microsoft's generic drivers come with the OS they're written for.

4 days ago
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Battery Breakthrough: Researchers Claim 70% Charge In 2 Minutes, 20-Year Life

confused one Re:5 minute charge (395 comments)

6,000 amps at 120VDC could be generated from a 12,5kV feeder found in a typical commercial setting; so, no, you don't really need a "direct connection to a power plant". I was exaggerating a bit. I would expect the utility to pitch a fit if you said you were going to pull that much power... They might have a choice words about your 3/4 megawatt load that switches in for 5 minutes at a time. Words like, "No"

about a week ago
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Battery Breakthrough: Researchers Claim 70% Charge In 2 Minutes, 20-Year Life

confused one Re:5 minute charge (395 comments)

I'm sorry, that's only 17 kWh over an hour, 1.4kWh in 5 minutes. To get 60kWh charge in 5 minutes you have to 60,000Whr / 120V * 60min/hour / 5min = 6,000 Amps.

about a week ago
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Pentagon Unveils Plan For Military's Response To Climate Change

confused one Re:US Military Uses Oil Like a Smaller Country (228 comments)

Fair enough, nearby supernova == bad. Nuclear is often classed as a renewable because so little of the U-235 is used (1% or less in a typical commercial power reactor) -- the fuel can be recycled, reprocessed and re-used. Then there are breeder cycles....

about a week ago
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Battery Breakthrough: Researchers Claim 70% Charge In 2 Minutes, 20-Year Life

confused one 5 minute charge (395 comments)

Clearly, they're practicing some sort of black magic if they think they can charge a 60 or 85 kWh battery in 5 minutes. Either that or they have a connection directly to the power plant located just around the corner.

about a week ago
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Pentagon Unveils Plan For Military's Response To Climate Change

confused one Re:US Military Uses Oil Like a Smaller Country (228 comments)

we're building more aircraft carriers because they have to be replaced. Enterprise was just retired after 50 years and is being decommissioned. The Kitty Hawk class are all retired now. Nimitz is 42 years old -- yes, its keel was laid in 1968 and it entered service in 1972. It takes 4-5 years to build one of these floating cities. There may be 10 of them (not counting Enterprise and Ford); but, one is usually in the yard being refit (15 year overhaul cycle -- Lincoln is currently in the yard) and there are several in port at any time. It takes 10-12 of them to support Naval operations worldwide. The rest of the world has basically stopped using aircraft carriers, because they're expensive. The U.S. uses them for force projection and as a platform for operations of all types, including disaster relief. Oh, and aircraft carriers run on renewable energy -- they have a pair of nuclear reactors in the hull.

about two weeks ago
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Solar Could Lead In Power Production By 2050

confused one Re:Electricity from Oil? (167 comments)

They do have scrubbers on the output. May not meet the new EPA requirements but it's good enough that they're closing the coal plants on site but leaving this one operational.

about two weeks ago
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Lego Ends Shell Partnership Under Greenpeace Pressure

confused one THIS JUST IN (252 comments)

This just in: LEGO are made from refined petroleum products. OMFG NO. The horror.

about two weeks ago
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First Birth From Human Womb Transplant

confused one the end of hope for male geeks everywhere (120 comments)

This, with artificial implantation and genetic engineering, brings us one step closer to asexual reproduction. It won't be long before science is able to pair DNA from two women to create a new offspring. Artificial wombs will follow. Soon women won't need men any more. Then the male geeks will go from having had a limited chance, to having zero hope of ever meeting a woman and having sex.

about three weeks ago
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Solar Could Lead In Power Production By 2050

confused one Re:Electricity from Oil? (167 comments)

There is a 800MW plant in my region that burns heavy oil (bunker oil). It's used for peaking and as backup capacity for when one of the two nuclear plants goes offline.

about three weeks ago
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NASA Eyes Crew Deep Sleep Option For Mars Mission

confused one Re:Just Go Nuclear and Get There Quick (236 comments)

I know VASIMR isn't a nuclear rocket (although at some field densities with the right fuels and energy input, the math shows there is the potential for limited amounts of fusion). VASIMR engines of that size will require a nuclear plant to power them. -- and I'm not talking about RTG's here. Frankly, this is territory we've not explored really, beyond a few early ground tests and small scale (10kW) fission reactors launched in the '60's and '70's (SNAP, RORSATs, Topaz) which mostly used thermoelectric conversion. That's not going to work for a 10MWe plant,

about three weeks ago
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NASA Eyes Crew Deep Sleep Option For Mars Mission

confused one Re:Just Go Nuclear and Get There Quick (236 comments)

I was politely trying to say that it was written by the company Ad Astra Rocket Company and they have an interest in promoting VASIMR. Yes the math is straight forward and I believe the technology works. However, I have seen (and worked for) companies that will write white papers that put everything in the most favorable light, even if the result is optimistic, and frankly not realistic. Overstating efficiencies, for example, by using the best case numbers observed in the R&D lab, and not the real-world numbers obtained from field trials. So, yes, such "groups" really exist.

about three weeks ago
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NASA Eyes Crew Deep Sleep Option For Mars Mission

confused one Re:Just send Submarine crews (236 comments)

A tour for a sub crew is typically 70-90 days.

about three weeks ago
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NASA Eyes Crew Deep Sleep Option For Mars Mission

confused one Re:Just Go Nuclear and Get There Quick (236 comments)

Study I read said it could be done in 39 days using a 10MW VASIMR engine. Now, that was written by the group pushing the technology, and may have been a bit optimistic; but, we can do better than 4 months.

about three weeks ago
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NASA Eyes Crew Deep Sleep Option For Mars Mission

confused one Re:Even better idea... (236 comments)

You're just lacking in imagination is all. Of course, Earth's big advantage is having this stuff called "air", which contains this stuff called "oxygen". Otherwise, (besides Mars being smaller and colder and having no magnetic field) they're pretty similar.

about three weeks ago
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Obama Administration Argues For Backdoors In Personal Electronics

confused one reverse effect (575 comments)

I'm sorry, Mr. Holder, this kind of statement, combined with previous stories about government agencies hacking personal computers en mass and pushing spyware to personal computers belonging to U.S. Citizens, just makes me want to go out of my way to encrypt my data and communications to the highest level possible. It's not that I have anything to hide, it's that you've forgotten your place and government is overreaching.

about three weeks ago
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Elon Musk: We Must Put a Million People On Mars To Safeguard Humanity

confused one Re:To the core! (549 comments)

You know, I hear it's kind of warm in there...

about three weeks ago

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