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Tesla Plans To Power Its Gigafactory With Renewables Alone

FishTankX Re: Most of it not tax financed, forced buy of tr (260 comments)

http://www.waste-management-wo...

Answer: Yes but lithium only makes up 3 percent of the cost of a lithium ion battery so recycling is uneconomical vs virgin production. If demand ever exceeds supply then that will likely change and old batteries which were thrown out will likely be reclaimed. Currently as I gather it there is about 12 pounds or $250-$350 worth of metallic lithium in a 75kwh battery pack. So currently lithium prices are a minimal impact on pack pricing considering that's a $20000 pack.

about three weeks ago
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Quiet Cooling With a Copper Foam Heatsink

FishTankX Re:Perfect (171 comments)

Or clean it with fire. Put it in a red hot flame and it should clean right up.

about 2 months ago
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DARPA Successfully Demonstrates Self-Guiding Bullets

FishTankX Re: Creepy (188 comments)

Or you have each bullet programmed to track one of thirty different laser frequencies. And then have the gun read the frequency from the bullet and produce the correct frequency laser.

about 3 months ago
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Solar-Powered Electrochemical Cell Used To Produce Formic Acid From CO2

FishTankX Re:Given that methane synthesis ... (133 comments)

If the goal is to reduce global warming however, methane is a much more powerful warming gas. What I think would be a better use is transformation to calcium carbonate. This would produce cement.

http://www.scientificamerican....

about 3 months ago
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U.S. Supreme Court Upholds Religious Objections To Contraception

FishTankX Re: A win for freedom (1330 comments)

They're not under common law to do anything if they're family owned small business which is what the summary specifies. I doubt google or facebook could try it.

about 3 months ago
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Toyota Describes Combustion Engine That Generates Electricity Directly

FishTankX Re: In mpg ... (234 comments)

Here would be how you calculate it..

10kwx2=20kw

1 gallon of gasoline is 33.4kwh (wikipedia)

@42% efficency, 20kw is consuming 47.6kwh/gasoline per hour

This gives 1.425 gallons per 52.6 miles per gallon, however if you assume the motors, charging system and resistance losses account for 10% efficency loss you get 47.3mpg highway at 75mph.

However, if we assume that you drive 60 instead of 75, alot of sites say you loose roughly 20-25% driving at 75. So at 60 if you gain 20% fuel economy it'd come out to ~56-7mpg, or within spitting distance of a prius.

about 5 months ago
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Texas Family Awarded $2.9 Million In Fracking Lawsuit

FishTankX Re: mystery ailments (146 comments)

what part of vomiting white foam is normal?

about 5 months ago
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How Japan Plans To Build Orbital Solar Power Stations

FishTankX Re:If you're just beaming it down to earth anyways (230 comments)

I believe the key difference here is that the soyuz space capsule hasn't killed anyone in 43 years. Which is mildly less impressive than the japanese shinkansen's no passenger fatality record. But more impressive than the shuttle's recent track record.

about 5 months ago
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How Japan Plans To Build Orbital Solar Power Stations

FishTankX Re:If you're just beaming it down to earth anyways (230 comments)

First off, Japan is space starved and property prices around it's population centers is staggering. Also, 80% of the country is mountainous.

Second of all, the irradiation in space is higher, about 1.3kw per square meter vs 1kw at the equator.

If you count in the fact that the sun is shining 24 hours a day 365 days a year.. versus the estimated 6 hours a day of good sunshine down on earth, you end up with roughly 5x the light per square meter of collector per hour per day averaged.

There's also no dust to mire the panels in space, or atleast not dust as we know it on earth. And if concentrating solar is used, like in the mirror design, high efficency solar panels can be used, again resulting in a 1.5x-2x boost in efficency per square meter of collector.

Cost wise though it'd probably be cheaper to fill every house's roof with solar panels, before going the space based route first. Economics is likely to be much better, unless they find a way to launch massive unfurling mylar mirrors into space, get them to play nice, and do it cheaply.

This all being said, if there's any way you could use local asteroids to start fabricating SPS's in orbit, then the economics change entirely and it's not so easy to say how it will play out.

about 5 months ago
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"Going Up" At 45 Mph: Hitachi To Deliver World's Fastest Elevator

FishTankX Re:Expensive (109 comments)

Yeah, it may be kind of elaborate, but if it can serve as an advertising platform in a busy station that function of it may pay for the machine over the life of it.

about 5 months ago
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Navy Creates Fuel From Seawater

FishTankX Re:Energy inputs (256 comments)

Fascinating. So electrolysis is the main driving force of this reaction....

If they could somehow install nuclear plants capable of running a sulfur iodine cycle, they could probably achieve 50% efficency, probably enough to obviate the need for at-sea resupply.

about 6 months ago
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Navy Creates Fuel From Seawater

FishTankX Re:Energy inputs (256 comments)

Probably. But many thermochemical processes fail to achieve 100% efficiency. So i'm not sure how efficient this one would work. And @$0.1/kw that's probably the figure for electricity, not thermal energy. I think most chemical conversion processes use thermal energy not electrolysis.

about 6 months ago
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Navy Creates Fuel From Seawater

FishTankX Energy inputs (256 comments)

Assuming that this process is 10% efficent let's take a look at the numbers.

Let's say you can dedicate half of the 1.1GWT (thermal) of the nimitz to aviation fuel production, if you're holding off coast.

And let's assume conservativley that the process is 20% efficent.

Diesel (pretty close to JP1) has an energy density of 35 MJ/L. This means at 20% efficency you'll be needing 175mj to create 1 liter of JP1.

At 1/2 1GWT you're looking at about 3 liters of fuel per second, or about 172,000 liters a day, or about 40,000 gallons. The nimitz has about 3 million gallons of fuel capacity so the refueling time of the entire tank from 0 would be around 2 months. According to this article here

http://large.stanford.edu/cour... (Also about marine jet fuel fabrication, provides some of the hard numbers) 3 million gallons is enough to refuel the onboard fleet about 20 times. So onboard fuel production would provide 1/3 of a full tank of gas for each aircraft onboard per day. Not terribly good, or bad.

about 6 months ago
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Operation Wants To Mine 10% of All New Bitcoins

FishTankX Re:I admire their spunk, but... (275 comments)

If the BTC were used to purchase a lambo or tesla roadster, it would probably get someone's attention..

about 6 months ago
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Operation Wants To Mine 10% of All New Bitcoins

FishTankX Re:I admire their spunk, but... (275 comments)

Perhaps somebody should create a folding at home/cancer research coin, that gives each person who dedicates CPU time a folding coin, with increasing difficulty. Once any research is commercialized with the results of the computations, a 50% share of the patent is disbursed to the coin holders. CPU calculations and GPU calculations would be separated and compensated differently. Like a CPU computation is worth 20x more than a GPU computation, because GPU computations can only solve certain problems and CPU computations are still needed.

If the bitcoin/litecoin swarm were dedicated like this to a research cause, the coins would gain inherent value once a commercialized therapy were implemented, like stocks, and would probably pay dividends, supporting a minimum price floor and adding a concrete value to the calculation based coins for the first time. No?

about 6 months ago
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Fishing Line As Artificial "Muscle"

FishTankX Re: There is no energy input (111 comments)

Heat is the input energy. It takes heat to actuate the muscle. After it cools it stops resisting the tension. My guess is that heat is applied through nichrome wire. Although being able to actuate at 130c makes me think you could use polyethylene coils to make a waste heat recovery engine via a reciprocating pull on a flywheel

about 7 months ago
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Meet the Electric Porsche From 1898

FishTankX Re: Generalizing much? (143 comments)

http://en.m.wikipedia.org/wiki...

Here Is the wikipedia article on lithium air batteries. If not 10x then atleast gasoline equivalent energy storage is possible. Are you saying that you would need a lithium hydrogen battery to reach 10x potential? The lithium air battery doesn't carry a cathode so it can hold more charge per weight so that's why I assumed it would live up to the 5-15x claim on wikipedia.

about 8 months ago
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Meet the Electric Porsche From 1898

FishTankX Re:Generalizing much? (143 comments)

This may on the surface be true. But the primary technological challenge with electric vehicles is battery technology, and this has been under development for a century and a half. Maybe even 2. Even still, though rechargeable batteries have gone up in capacity maybe 10x, it is still not anywhere near competing with ICE vehicles cost effectively. That will come when the air-chemistry batteries hit the market, with another 10x increase in energy storage per volume/weight due to negating the need to carry your cathode. (or is it anode?)

about 8 months ago
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Microsoft Reports Record Revenue

FishTankX XBox saves the day (289 comments)

Looks like for microsoft to preserve profitability it may have to continue to branch out of its core competency, windows. Perhaps it's following in Apples footsteps in a sense, branching away from personal computing to consumer electronics.

about 8 months ago

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