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User: justthinkit

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  1. Re: Oh yeah! on Seagate Adopts Helium For a 10TB HDD (computerworld.com) · · Score: 1

    Once again you are mistaking "new and tiny expands to full size" change with the much less dramatic "full size to droopy grapefruit size" that is what happens when it shrinks on its own.

  2. Re:Oh yeah! on Seagate Adopts Helium For a 10TB HDD (computerworld.com) · · Score: 1

    If you really want to get into what is happening, you also need to consider that the balloon, when fully naturally deflated, is maybe half the diameter of a fully inflated balloon. It doesn't change by a factor of ten or twenty in thickness. Probably more like a factor of three or four.

    And why you compare the pressure of He inside, to the partial pressure of He outside is beyond me. It is a gas, under pressure, pushing against a membrane...with the gas gradually going through the membrane. You could inflate the balloon with air, for example, and it will still run down.

  3. Re:Quigley Down Under on RIP Alan Rickman, AKA Hans Gruber, Severus Snape (variety.com) · · Score: 1

    Also noteworthy in "Sense And Sensibility"...the 1995 one.

  4. Re:Oh yeah! on Seagate Adopts Helium For a 10TB HDD (computerworld.com) · · Score: 1

    Well, actually, it is because the pressure difference decreases. In addition to the balloon rubber being thicker. Two factors, that both happen to work together.

  5. Re:Correction on why Helium "leaks" on Seagate Adopts Helium For a 10TB HDD (computerworld.com) · · Score: 1
    Hydrogen has a higher diffusivity than helium. Seems to be about 25% higher.[PDF]

    I believe that the difference is hydrogen is soluable in many metals.

    Since I've never heard of such a thing, please provide a link.

    Note: given that hydrogen, even when diatomic, is smaller than Helium, it doesn't need to be "soluble" in metal to diffuse better.

  6. Correction on why Helium "leaks" on Seagate Adopts Helium For a 10TB HDD (computerworld.com) · · Score: 2

    It diffuses through metal because it is small. But not as small, nor as diffusion-prone as Hydrogen (which is diatomic btw).

  7. Re:confusing title on The Mystery of the Naked Black Hole (sciencemag.org) · · Score: 1

    Slashdot is alive and well.

    Thanks.

  8. Re:confusing title on The Mystery of the Naked Black Hole (sciencemag.org) · · Score: 1
    And you have it wrong as well when you say:

    ...it means a black hole without an event horizon.

    Quoting from wiki:
    In general relativity, a naked singularity is a gravitational singularity without an event horizon.

    Notice there is no linking of "black hole" with "naked singularity". Nor can there be, as one has to have an event horizon, while the other has to not have an event horizon.

  9. Re:FTFY on The Mystery of the Naked Black Hole (sciencemag.org) · · Score: 1

    Also recorded is a spot in the center of the Milky Way galaxy where stars orbit at millions of miles per hour. It is a simple matter of mechanics to calculate how big the center something must be to cause stars to travel at such high rates of speed. Yet it is not emitting light as a conventional star would. Large, black and acting as we have predicrted. Q.E.D.

  10. Re:Camera orientation must match that of device on Twitter To Extend 140-Character Limit For Tweets (recode.net) · · Score: 1

    Put some useful feature in the Landscape layout -- like how those virtual keyboards get bigger when you turn the phone sideways. People filming with their phones will turn their phones without thinking after that.

  11. Re:done before... on Twitter To Extend 140-Character Limit For Tweets (recode.net) · · Score: 1

    If a sales team doesn't make enough to cover the cost of the sales team, it's time for no sales team.

    After the move to longer tweets, just start inserting ads selected by Twitter. Then make people have to pay to not see the ads. Say $10/year. Problems solved.

  12. Re:Meh. on How an IRS Agent Stole $1M From Taxpayers (onthewire.io) · · Score: 1

    An ironic choice of author.

  13. Re:WRONG! They are most definitely isotopes on Four Elements Added To Periodic Table (theguardian.com) · · Score: 1
    Thanks for trying to adjudicate but:

    These damn kids with their designer isotopes that clock less than a second of half-life.

    'designer isotopes' implies multiple variations of one element, and that is absolutely not what is going on here. Scientists have, apparently, created four new elements, without any mention or hint of them creating two or more isotopes of any of these elements. Just one type of each of four elements.

  14. Re:WRONG! They are most definitely isotopes on Four Elements Added To Periodic Table (theguardian.com) · · Score: 1

    Despite my quoting the wiki definition, I don't think you know what an isotope is.

    As to half-lives, they are all over the map -- 118 is about 0.89 of a millisecond, 117 is measured in days, 115's is 220 ms, 113's is 20 seconds. Generalizing that they are all in one range is never done by anyone but a chemistry novice.

  15. Re:damn this hipster science. on Four Elements Added To Periodic Table (theguardian.com) · · Score: 1
    Drivel.

    Chemical reactions take place on the order of a few femtoseconds so there is FAR more than enough time for these things to react and make a stable molecule. Look at uranium. On its own it decays as a radioactive compound but if turned into uraninite it is stable and far less dangerous.

    (1) Chemical reactions take varying amounts of time. Saying they all happen in femtos is ridiculous, but convenient to your thesis above.

    (2) Let's look at uranium. On its own it does nothing. Ohhhh, you were referring to just one of the two main isotopes.

    (3) Finally, you imply that making a chemical compound will somehow magically eliminate U-235's radioactivity .

    Bonus: Love that .sig, btw.

  16. Re:damn this hipster science. on Four Elements Added To Periodic Table (theguardian.com) · · Score: 1

    Their half-lives are probably measured in millionths, or less, but regardless, they are not isotopes: variants of a particular chemical element which differ in neutron number, although all isotopes of a given element have the same number of protons in each atom

  17. Re:Right. More than right. on Iran's Blogfather: Facebook, Instagram and Twitter Are Killing the Web (theguardian.com) · · Score: 1

    But it doesn't, by default, archive every page. So you have to submit pages. But, by submitting pages, you are outside the norm...and probably the type to provide redirect pages anyway.

  18. IoT on Ask Slashdot: Predictions For 2016? (slashdot.org) · · Score: 1

    The real sure thing? The Internet of Things juggernaut. I'm astonished it hasn't been mentioned yet.

  19. Re:I edit Wikipedia regularly on Is Wikipedia's Popularity Causing Its Decline? · · Score: 1

    Question: when you post "anonymously", are you using the same ID (e.g. "MobyDisk")? If so, then you have a history, and perhaps credibility, which goes into how you are treated. I'm just mildly curious...never had an interest in contributing anything to Wiki myself.

  20. Re:What utter garbage... on Nadine the Robot Receptionist (qz.com) · · Score: 2

    If you want to that gets happy, or sad, when it sees you, get a dog.

    Happy? Yes. Sad? No. Dogs don't do sad, unless someone has died. Dogs power down but are otherwise in the moment most of the time. Amazing companions and partners, actually.

    BTW, receptionists are dying off, just as secretaries are. People do their own typing these days, and automated phone systems route calls. So this article has no relevance.

  21. Re: Can a corporate security officer comment on Microsoft Has Your Encryption Key If You Use Windows 10 (theintercept.com) · · Score: 1

    Registering with web sites that have comment systems is often the only option if you wish to post comments. These days.

  22. Re: AKA "Stealing from citizens program" on Justice Department Shuts Down Huge Asset Forfeiture Program · · Score: 2
  23. Re:I asked a very similar question last month... on Ask Slashdot: Best (or Better) Ways To Archive Email? · · Score: 1

    Staggering levels of complexity and cost...

    My 20 years of emails are in the text file format native to Eudora. If I use any other email systems, I just bcc myself (i.e. Eudora). All in, ZIPped, I'm under 90MB.

    One post-processing thing helps -- I strip unneeded headers, and this chops out about half of the size.

    Text files forever baby.

  24. However, My Little Pony isn't a particularly good example, because it's full of completely flat areas that are trivial to encode. It might take a higher quality setting than you might expect to look crisp, but at the end of the day, you're going to be spending fewer bits per frame on it than on The Avengers.

    Ah, this is why it is a perfect example. "Easy to encode" equals "will save a lot of space" in the new format.

  25. Re:Really? on Dell, Toshiba and Lenovo Utilities Expose PCs To More Attacks · · Score: 2

    Couple I've looked at:

    DisableWinTracking

    I'm not sure where I got BlockWindows, so I'll just upload it here:
    BlockWindows