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  1. Re:Photon-specific or driven by temperature? on New Solar Reactor Prototype Unveiled · · Score: 1

    It is purely a thermochemical cycle. It doesn't interact directly with visible light but instead uses the heat produced from the absorbsion of visible light to crack water and carbon dioxide.

  2. Re:CO2 to CO. What WHAT? on New Solar Reactor Prototype Unveiled · · Score: 3, Informative

    1) CO is very useful industrially being used to produce various organic molecules including Methanol, Acetic acid, catalytic metal complexes, hydrocarbons, alcohols etc.

    2) this process does produce oxygen:
    2Ce2O3 + 2CO2 => 2CO + 4CeO4
    4CeO4 + extreme heat => 2Ce2O3 + O2

  3. Re:Hmmm on New Solar Reactor Prototype Unveiled · · Score: 4, Informative

    If only you knew just how useful Carbon Monoxide is in industrial synthesis. Methanol, Acetic acid, Oxalic acid, various synthetic hydrocarbons, catalytic metal complexes like Co2(CO)8, ethylene glycol and a ton of others.
    CO+3HS => CH4 + H2O
    CO+2H2 => CH3OH
    CO+CH3OH => CH3COOH
    CO+2H2+CH2O => ethylene glycol via hydroformylation
    2CO+5H2 => ethanol + H2O via anaerobic fermentation
    etc. etc. etc.

  4. not new on New Solar Reactor Prototype Unveiled · · Score: 3, Informative

    This is water thermochemical cracking and it isn't new. Not by a long shot. Most of the attention has been on the Sodium Manganese, Sulfur Iodine and this cycle which really hasn't been terribly efficient comparatively. The Cerium cycle which this thermochemical cracking system uses works at a much higher temperature than the other cycles as well. See here for details.

    Water thermochemical cracking is probably the most efficient method of converting solar energy to chemical energy that we have, perhaps that even exists considering the inefficiency of electrolysis.

  5. Re:Scary? on Aerial Video Footage of New York Taken By RC Plane · · Score: 2

    No laws were broken but they thought the'd show up anyway? What is wrong with this country.

  6. Re:Idle? on 8-Year-Olds Publish Scientific Bee Study · · Score: 1

    Notice that I said some of the better ones, not all of them. Now in so far as actually writing science papers, that's why many undergrads etc. are co-authors with a phd/grad student assisting them. Their work doesn't need to be as disruptive to their chosen field as Faraday's work was to be useful to humanity it just needs to increase knowledge of a particular field enough to be worth writing and publishing in a reputable journal.

  7. Re:Idle? on 8-Year-Olds Publish Scientific Bee Study · · Score: 3, Insightful

    Agreed. By the looks of the paper they wrote, it seems that many of the better science fair projects ought to try submitting their results too.

    10 years old: determine differences in plant growth between indoor lighting and natural sun light (never thought to do what these kids did though... oh well)

    15: genetic transformation of bacteria w/ ampicillin resistance gene (successful)

    19: Selenium hyperaccumulation research paper submitted and accepted by Science

    I know I've done that experiment too but I forget exactly when it was. From what I've seen, it seems that a lot of the difference between a good education and a rather mediocre one is in what you decide to take if you have a choice. If you take genetics in high school, you'll probably get to do a lot of neat stuff compared to just trying to slide through school.

    Of course a lot of the problem lies with the teachers who have often had their curiosity ruined in their school years like a lot of other people have. What needs to happen is geeks like us need to become teachers or at least mentors and inspire the next generation to do the neat stuff we did.

  8. Re:..so? on Electric Cars May Be Made Noisier By Law · · Score: 1

    Some people do. Unfortunately it's a case of taking a reasonable position "some laws are bad" and taking it to it's illogical extreme "all laws are bad."

  9. Re:Idiocracy on Electric Cars May Be Made Noisier By Law · · Score: 1

    What innovation?

  10. Re:Why trust your ears? Unless you're blind that i on Electric Cars May Be Made Noisier By Law · · Score: 1

    You don't rely on the sound alone, but it does help especially as you said, with people who are visually impaired. Cars make quite a bit of noise at highway speeds but at lower speeds, there is less noise produced from the interaction between the tires and pavement. As far as peoples' behavior is concerned, it probably doesn't justify their deaths.

  11. Re:My argument against the Net Neutrality on Al Franken Makes a Case For Net Neutrality · · Score: 1

    It isn't the kid next door's fault that your ISP refuses to upgrade their bandwidth infrastructure.

  12. Re:He says one thing and does another on Al Franken Makes a Case For Net Neutrality · · Score: 1

    You can't be pro net neutrality and pro censorship; that is a contradiction in terms.

  13. follow up since this is *ancient* on FBI Defend Raids On Texas Datacenter · · Score: 2

    Liquid motors loses appeal after raid

    A condensed summary of what happened

    There isn't much if anything about what happens after all of this, whether the case went to trial etc. just that Croydon technology's website hasn't been updated since.

  14. Re:Insilvent? So what? on A Blue-Sky Idea For the USPS — Postal Trucks As Sensors · · Score: 0

    The postal service is going to be insolvent because the service they provide isn't worth the cost. If it was, people would pay a higher price for it. At the time that the constitution was written, it was pretty much the state of the art communication channel and it made some sense for it to be singled out as necessary along with post roads etc. Today, things are different. Most people don't use snail mail to communicate so it doesn't make sense to keep it the way it is. The modern day equivalent of the postal service's role in the late 1700's is broadband last mile infrastructure.

  15. Re:Cancer? on How To Cut a Nanotube? Lots Of Compression · · Score: 3, Informative

    Nanotubes punch holes in cells like molecular needles which is why there's a lot of interest in making antimicrobial surfaces out of them.

  16. Re:Yea America! on Senate Repeals 'Don't Ask, Don't Tell' · · Score: 1

    Unfortunately, that's probably not the case. If the last elections of the house/senate are any indication, it's certainly possible that if the dems screw up too much we'll have another one just like Reagan/Bush as the president within the decade.

  17. Re:Yea America! on Senate Repeals 'Don't Ask, Don't Tell' · · Score: 1

    The problem is that this just left the decision to the military rather than grant blanket protection against discrimination.

  18. dupe on Periodic Table of Elements To Get an Update · · Score: 5, Insightful

    one can imagine the challenge now to educators and students who will have to select a single value out of an interval when doing chemistry calculations," says Dr. Fabienne Meyers, associate director of IUPAC

    not really, if it's a problem now, it was then too since these weights didn't magically change. Really, it doesn't terribly matter much as it is, the discrepancy is tiny and for most molecules, largely irrelevant. For any calculation that really reall matters, you won't be using the range on the table, you'd be measuring the isotope ratio in your sample and for times when it doesn't, well, that's self explanatory.

  19. Re:Measurement? What measurement? on First Measurement of Magnetic Field In Earth's Core · · Score: 5, Insightful

    Can you name any measurement that isn't indirect in some way? To measure a magnetic field, you're actually observing something that the field affects such as a Hall effect magnetometer which measures the voltage potential induced by a magnetic field in a conductor or a SQUID magnetometer which measures a current accross a josephson junction

  20. better ideas than cutting science funding on 'YouCut' Targets National Science Foundation Budget · · Score: 1

    *cut the military budget, it's the single largest section of the federal government weighing in at 800 billion a year.
    *kill the NEA, we're locking away people for harming themselves... at a cost of nearly 200 billion a year and we aren't getting any tax money from sales tax on legalized drugs. Also gangs are like under alcohol prohibition funded by illegal activities like drug dealing.
    *farm subsidies because we Americans so don't need more HFCS.
    *clean up the entitlement programs, maybe even relegate them to the states.

  21. Neato on First Measurement of Magnetic Field In Earth's Core · · Score: 5, Informative

    He used the precession effect on Earth's core caused by the moon to calculate how much the magnetic induction deviated the calculated value of precession from the measured value. Basically, the field imparts a force that counteracts the precession of the inner core that is measurable. It's pretty clever how he was able to calculate the strength of the magnetic field the way he did:

    He realized, however, that the tug of the moon on the tilt of the earth's spin axis could provide information about the magnetic field inside. This tug would make the inner core precess – that is, make the spin axis slowly rotate in the opposite direction – which would produce magnetic changes in the outer core that damp the precession. Radio observations of distant quasars – extremely bright, active galaxies – provide very precise measurements of the changes in the earth's rotation axis needed to calculate this damping.

    "The moon is continually forcing the rotation axis of the core to precess, and we're looking at the response of the fluid outer core to the precession of the inner core," he said.

    By calculating the effect of the moon on the spinning inner core, Buffett discovered that the precession makes the slightly out-of-round inner core generate shear waves in the liquid outer core. These waves of molten iron and nickel move within a tight cone only 30 to 40 meters thick, interacting with the magnetic field to produce an electric current that heats the liquid. This serves to damp the precession of the rotation axis. The damping causes the precession to lag behind the moon as it orbits the earth. A measurement of the lag allowed Buffett to calculate the magnitude of the damping and thus of the magnetic field inside the outer core.

  22. stargate replicators but not evil on MakerBot Thing-o-Matic 3D Printer Assembly, In Pictures · · Score: 2

    Too bad none of those 3d printers can print a copy of themselves. Create one that does and is programmable and uses genetic algorithms and you've created the first form of synthetic "life." More sophisticated ones can become the basis of an entirely new kind of economy.

  23. Re:not surprised on Yahoo! To Close Delicious · · Score: 1

    Stumbleupon is a good one but Delicious seemed to have more variety in certain tags (eg. anime) and really if you used http://delicious.com/tag/nameoftag?random=1 you'd get a decent channel surfing bookmark right there. Every time you visit that bookmark, it'd redirect to a random page from that (nameoftag replaced w/ tag) tag. Well I guess I'd better start thumbing the hell out of what is worth stumbling before it's all gone.

  24. Re:Sheesh on Survey Shows That Fox News Makes You Less Informed · · Score: 1

    Two problems: the fist is that the poll asked a subjective question: is the economy improving? and two, was the stimulus responsible? Job gain/loss is fact. Whether the stimulus caused it is subjective at this point.

  25. Re:Sheesh on Survey Shows That Fox News Makes You Less Informed · · Score: 1

    Exactly. A few are a bit misleading too. The senate vote on TARP for isntance, you could look at the vote vote in two different ways:
    1) that both parties had a majority of members who voted for TARP (40/50 democrats and 34/49 republicans who voted) or 2) 60% of the nays were from republicans (10/50 democrats and 15/49 republicans) So technically true but not terribly informative. The top two on this list are very debatable, especially the stimulus. The rest, I'll agree, are more indicative of the ignorance of the respondents.