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User: belphegore

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  1. ...except it also works remotely for FileVault on MacOS High Sierra Bug Allows Login As Root With No Password (theregister.co.uk) · · Score: 1

    so it's not exactly "far from a remote hole or a disk decryption technique" as the post suggests. If Screen Sharing is turned on, it allows remote login; if you have access physically or via Screen Sharing, you can use it to turn off FileVault. So it's potentially both a remote hole AND a disk decryption technique. "sudo passwd -u root" now if you hadn't already reset the root passsword!

  2. 1.21 gigawatts? on Porsche Unveils Its First Electric Car · · Score: 1

    So, um, basic math envelope-scirbbling:

    ~100kWh battery (to be slightly more range than 85kWh Tesla), charging to 80% (or 80kWh) in 15 minutes, is 320kW during charging.

    320kW / 240V = ~1300kA

    Good luck getting your local electric company to give you a 1300+ amp connection for a residence. Most people have at most 100-200A on their main breaker. And the theoretical "concept" of this car's inductive charging system: 800V at presumably around 400A is just scary. Don't accidentally drop a penny under the car on top of the inductive loop! I don't want to even picture trying to dissipate ~320kW through a penny.

    Not clear to me how there are more people reading about this "concept" car that might or might not be in production in around 5 years maybe, and saying "wait a minute, this doesn't make any sense".

  3. Re:not supposed to be on the web! on Bash To Require Further Patching, As More Shellshock Holes Found · · Score: 1

    Uh. Apple *does* put /usr/bin/procmail on every Mac.

  4. Github "explore" on Ask Slashdot: Where Do You Get (or Share) News About Open Source Projects? · · Score: 1
  5. Re:They did not pass "aversion" to their grandkids on Scientists Find Olfactory "Memory" Passed Between Generations In Mice · · Score: 1

    Yes, for the initial test group. But two things (quotes from blog not TFP):

    1. "startle" is not necessarily aversion

    For example, the researchers didn’t do a control experiment where the F0 animals are exposed to the fruity odor without the shock. So it’s unclear whether the “memory” they’re transmitting to their offspring is a fear memory, per se, or rather an increased sensitivity to an odor.

    and 2. not for the group where they used IVF to create the offspring to eliminate some possible biases:

    To control for these possibilities, the researchers performed an in vitro fertilization (IVF) experiment in which they trained male animals to fear acetophenone and then 10 days later harvested the animals’ sperm. They sent the sperm to another lab across campus where it was used to artificially inseminate female mice. Then the researchers looked at the brains of the offspring. They had larger M71 glomeruli, just as before. (The researchers couldn’t perform behavioral tests on these animals because of laboratory regulations about animal quarantine.)

  6. They did not pass "aversion" to their grandkids on Scientists Find Olfactory "Memory" Passed Between Generations In Mice · · Score: 5, Informative

    The grandkids had enhanced receptors for that particular smell. They specifically did not test for, and point out in the paper that they do not claim that the AVERSION was passed on, only that F1 and F2 had structures in the brain that are enlarged compared to control, and that are associated with the sense of smell for the chemical that was used to prime the F0 generation.

    Much better science-savvy writeup by my cousin on the Nat Geo blog:

    http://phenomena.nationalgeographic.com/2013/12/01/mice-inherit-specific-memories-because-epigenetics/

  7. It's not totally missing. Max legal wifi xmit power is 100mW at the source. Conversion at the receiver is ~37% efficient. So if you're directly on top of the xmitter, capturing ALL the (generally omni-radiated) energy, you'd get 37mW of power. USB on newer devices is like ~10W.

    And of course if you're not capturing 100% of the signal in all directions, and if you're away from the source (remember friends: inverse square power dropoff), then you'll be lucky to get even a mW.

  8. Re:Meanwhile, THEIR code is sketchy on How Your Compiler Can Compromise Application Security · · Score: 2

    I probably got in early enough to grab the code before they go slashdotted. Looks like it's also on github, here:

    https://github.com/xiw/stack

  9. Meanwhile, THEIR code is sketchy on How Your Compiler Can Compromise Application Security · · Score: 3, Funny

    Checked out their git repo and did a build. They have a couple sketchy-looking warnings in their own code. A reference to an undefined variable; storing a 35-bit value in a 32-bit variable...

    lglib.c:6896:7: warning: variable 'res' is used uninitialized whenever 'if' condition is true [-Wsometimes-uninitialized]
    lglib.c:6967:10: note: uninitialized use occurs here
    plingeling.c:456:17: warning: signed shift result (0x300000000) requires 35 bits to represent, but 'int' only has 32 bits [-Wshift-overflow]

  10. Re:Limited cargo use on "Slingatron" To Hurl Payloads Into Orbit · · Score: 1

    Space burial! Now with free pudding!

    Sign me up.

  11. Re:Cargo is expensive on "Slingatron" To Hurl Payloads Into Orbit · · Score: 1

    Let's take some of the nastiest, most explosive and poisonous stuff we know of, load it into a container, then spin it round and round and round at insane speeds, then when it's pointed in what we hope is roughly the right direction, let go...

    What could possibly go wrong?

  12. Re:Worth the tradeoff.. on HTTP 2.0 Will Be a Binary Protocol · · Score: 2

    ...unless you're on an embedded platform for which you don't have a compiler, and maybe busybox might build in this fancy new binary HTTP client tool in a few decades, but it'll be another few decades after that before manufacturers enable it and ship it.

  13. Grammar nazis on Teenage League of Legends Player Jailed For Months For Facebook Joke · · Score: 1

    Jailing someone for misplaced comma? If it were a bad use of the apostrophe, I could understand. But a comma?

  14. Re:How about the US-Canadian/US-Mexico border? on DHS Can Seize Your Electronics Within 100 Mi.of US Border, Says DHS · · Score: 1, Informative

    Don't forget a 100 mile radius around inland international airports.

  15. Re:Easy to see curvature on George Albercook Teaches Kids About Space with High-Altitude Balloons (Video) · · Score: 1

    You don't need a lot of magnification to see with your eyes the tops, but not the bottoms, of things whose base is beyond the horizon.

  16. Easy to see curvature on George Albercook Teaches Kids About Space with High-Altitude Balloons (Video) · · Score: 1

    The earth's curvature is very easy to see even down on the surface. It's called "the horizon".

  17. Uh.... like the existing iPad plans? on AT&T Expects Data-Only Phone Plans Within 2 Years · · Score: 4, Informative

    I guess the dude never heard of his own company's iPad plans, which are ALREADY DATA ONLY

  18. Re:IIRC on Engelbart's Keyboard Available For Touchscreens · · Score: 4, Informative

    The picture at Wikipedia is of the Microwriter, not the Microwriter AgenaA. Try this page:

    http://www.gifford.co.uk/~coredump/org.htm

    There's a picture on there under that name which is the device I remember -- the AgendA that is, not the Microwriter below it.

  19. Re:IIRC on Engelbart's Keyboard Available For Touchscreens · · Score: 3, Informative

    I think the poster below is correct, it's a Microwriter AgendA. The picture at Wikipedia is of some other Microwriter device. This page has a picture of the AgendA:

    http://www.gifford.co.uk/~coredump/org.htm

    My friend had one around the same time I had my Psion Organizer II, ~1989 or so in highschool in the UK.

  20. Why only HTTP servers? on World IPv6 Day: Most-watched Tech Event Since Y2K · · Score: 1

    $ host -t mx gmail.com
    gmail.com mail is handled by 5 gmail-smtp-in.l.google.com.
    gmail.com mail is handled by 10 alt1.gmail-smtp-in.l.google.com.
    gmail.com mail is handled by 20 alt2.gmail-smtp-in.l.google.com.
    gmail.com mail is handled by 30 alt3.gmail-smtp-in.l.google.com.
    gmail.com mail is handled by 40 alt4.gmail-smtp-in.l.google.com.
    $ host gmail-smtp-in.l.google.com.
    gmail-smtp-in.l.google.com has address 72.14.213.27$ host -t mx cisco.com
    cisco.com mail is handled by 10 sj-inbound-a.cisco.com.
    cisco.com mail is handled by 10 sj-inbound-b.cisco.com.
    cisco.com mail is handled by 10 sj-inbound-c.cisco.com.
    cisco.com mail is handled by 10 sj-inbound-d.cisco.com.
    cisco.com mail is handled by 10 sj-inbound-e.cisco.com.
    cisco.com mail is handled by 10 sj-inbound-f.cisco.com.
    cisco.com mail is handled by 15 rtp-mx-01.cisco.com.
    cisco.com mail is handled by 20 ams-inbound-a.cisco.com.
    $ host sj-inbound-a.cisco.com
    sj-inbound-a.cisco.com has address 128.107.234.204
    $ ...etc

  21. Re:Tell the person on Ask Slashdot: What To Do With Other People's Email? · · Score: 1

    This is exactly what I do. I have 3 people who commonly misuse my gmail address, and all share my name. One is a retired Air Force colonel in Virginia, one is a real estate agent in Texas whose wife uses his email address for her clothing design business a lot, and the most recent is an Australian whose daughter has recently gone off to college and uses her dad's email address for some reason. I enjoy vicariously living part of these 3 folks lives. I have found all 3 of their real email addresses, fairly easily, and I forward their mail to them. Generally this encourages them to be more careful about not mis-entering their email addresses on web forms, etc. and in insisting on the correct spelling when giving their addresses to others, thereby reducing the future burden on me. I think all 3 of them greatly appreciate it when I do forward the mis-directed mail to them, and generally I don't twice get misdirected mail from the same source: they do fix the sender's problems for me. If the 3 of them weren't so geographically spread it might be harder -- but there are almost always clues in the email as to whether the intended recipient is in Texas, Virginia, or Australia -- or whether a teen girl, retired AF colonel, or realtor/clothing designer.

  22. Time Machine anyone? on Ask Slashdot: Is the Recycle Bin a Good GUI Metaphor? · · Score: 1
  23. Re:incorrect on Why Are We Losing Vertical Pixels? · · Score: 1

    Ah crap. Me and my lazy googling. Try this one:
    http://upload.wikimedia.org/wikipedia/commons/b/b6/PM5644-1920x1080.gif

  24. Re:incorrect on Why Are We Losing Vertical Pixels? · · Score: 1

    It can take a 1920x1080 signal and use its scaler to render to its panel. Yes. But can any of those TVs actually properly render the thin vertical lines in a test pattern like this one:
    http://www.matoverton.com/video/testcardk_1920.png
    I've not seen one yet that can.
    I believe that the "resolution" that they're advertising is the INPUT resolution, not the number of actual pixels on the panel.

  25. Re:incorrect on Why Are We Losing Vertical Pixels? · · Score: 1

    I've put this test pattern:
    http://www.matoverton.com/video/testcardk_1920.png
    on every high-end LCD TV I could find near me (I have 6 around the office, 4 Samsung 6000 series 40, and 55-inch, and 2 LG 32 and 47", and not one of them can properly display beyond the 1366 horizontal resolution test lines accurately (and the 1366 lines are mis-aligned on all but one of the TVs).