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User: pcr_teacher

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Comments · 11

  1. Re:The ledger and crypto currency thefts on Hackers Hijack DNS For Lumens Cryptocurrency Site 'BlackWallet', Steal $400,000 (bleepingcomputer.com) · · Score: 1

    Trading in stolen goods is an on-going crime, so the statute of limitations does not apply:
    https://www.quora.com/If-a-cer...

  2. history repeats on Maths Becomes Biology's Magic Number (bbc.com) · · Score: 4, Informative

    Physicists have been doing this for a long time. See Max Delbruck and the phage group in the 40's and 50's
    https://en.wikipedia.org/wiki/...

  3. Re:Use the Source .. TIMMAY! on Graphene Optical Lens a Billionth of a Meter Thick Breaks the Diffraction Limit (gizmag.com) · · Score: 1

    Here is a reference that explains how the technology works:
    http://petapixel.com/2015/02/2...

  4. Re:Perler Bead Sorting? on High Speed DIY M&M Sorting Machine Uses iPhone Brain · · Score: 1

    The kit includes a color sensor... the rest is up to the imagination of the student building it: http://youtu.be/d4k9bWbtJEk

  5. Re:Failure of Imagination; Utilities Could Sell So on Energy Utilities Trying To Stifle Growth of Solar Power · · Score: 1

    This is essentially correct:
            If they take away net metering they should give wholesale peak prices. This can be more than $10 per KWh.http://eex.gov.au/energy-management/energy-procurement/energy-pricing/the-wholesale-price-of-energy/

    If they don't give this wholesale price to homeowners, then the dropping price of PV will mean that large companies will set up large installations, selling into the wholesale spot market at peak prices. Same effect: drop in profits for electricity generators, and an increase in the price of stanby power at night or on cloudy days.

  6. Re:Chip & Pin on Michaels Stores Investigating Possible Data Breach · · Score: 1

    Chip and Pin has already been comprimised in the wild:

    http://www.telegraph.co.uk/new...

  7. Re:Or IS there even a genetic test?. on French Police Unsure Which Twin To Charge In Sexual Assaults · · Score: 1

    Two words:
    1) somatic mutations: http://www.nature.com/scitable/topicpage/somatic-mosaicism-and-chromosomal-disorders-867

    2) mosiacs: http://www.forteantimes.com/strangedays/science/2368/chimeras_and_mosaics.html

    Mutations happen all through the life of an organism. If that mutation happens in a germ cell (sperm or egg) the mutation is passed down to every cell in the next generation. However, if the mutation occurs in a somatic cell (non-germ cell), then when this cell divides (during growth) all the resulting cells carry the mutation.

    In chimera (similar, but slightly different) you can have a person with one blue eye and one brown eye.

  8. Re:just google it on Ask Slashdot: Anti-Theft Devices For Luggage? · · Score: 2

    There are wireless proximity alarms (designed for keychains or children) that work with your smart fone, setting off an alarm on your phone when the distance goes beyond about 10 meters:

    http://www.tomsguide.com/us/keyfinder-wireless-clicker-keys,review-1689.html

    Also look for Loc8tor plus: the range is supposed to be 100 meters.

    Battery life is an issue...

  9. Re:Remember Carter? on US To Fire Up Big Offshore Wind Energy Projects · · Score: 3, Interesting

    What does the efficiency matter when the resource is free? What is more important is the capital cost and
    the operating costs. I would be curious to see a citation for your claim of 1% efficiency of wind turbines.

  10. Re:If they ask for a password on Encrypt Your Smartphone — Or Else · · Score: 1

    Wiping your cell phone to hide evidence is probably grounds for charging you with Obstruction of Justice

  11. Re:That would be awesome on Extinct Mammoth, Coming To a Zoo Near You · · Score: 1

    They are already working on creating Pleistocene park using animals similar to the extinct mega-fauna herbivores.
    (http://www.stanfordalumni.org/news/magazine/2008/sepoct/features/siberia.html)

    The idea is that mammoths damaged the lichen and mosses of the tundra, thus allowing grass to grow, drying out the soil, preventing the permafrost from forming,

    The permafrost locks up nutrients for the plants and animals and forms a high albedo surface that doesn't warm up quickly in springtime.
    (http://www.abc.net.au/rn/scienceshow/stories/2011/3101365.htm#transcript)

    The scape marks on the bottom of the mammoth tusks indicates that they probably scraped the snow off the grass in winter, allowing other smaller herbivores to find food and survive winter.

    The change from tundra to grassland has the potential to have huge climatic effects
      and help prevent a huge release of methane (a much worse greenhouse gas than CO2).

    Recreating the Pleistocene grasslands is not a silly, flippant or ill-considered idea