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User: Walking+The+Walk

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  1. Re:15km in 1 second at 1.5km/s? on Surprising Discovery Hints Sonic Waves Carry Mass (scientificamerican.com) · · Score: 1

    Details.... First sentence starts with 'in water'. Presumably, the next sentence is not 'in water'.

    I think it must have been a decimal point problem instead, because the speed of sound in air is only 0.3km/s. Even in metals like steel it's only 5 - 8km/s. I'm not a materials scientist, but I don't know any solid that transmits sound at 15km/s. Wikipedia says it's 12km/s in diamond, for whatever that's worth as a reference.

  2. 15km in 1 second at 1.5km/s? on Surprising Discovery Hints Sonic Waves Carry Mass (scientificamerican.com) · · Score: 3, Informative

    In water, where sound moves at 1.5 kilometers per second, the negative mass of the phonon would cause it to drift at about 1 degree per second. But this corresponds to a change of 1 degree over 15 kilometers, which would be exceedingly difficult to measure

    Uh, if sound moves at 1.5 km/s, and drifts by 1 degree/s, then in 1 second it should have drifted by 1 degree and travelled 1.5 km, not 15km? After 10 seconds it will have travelled 15 km and drifted by 10 degrees, which surely would be measurable. (PS: I read the article, the summary quotes the article correctly.)

  3. Similar story in October on So You Automated Your Coworkers Out of a Job (gizmodo.com) · · Score: 1

    We had a similar discussion back in October about people coding themselves out of a job, and the morality of not telling your employer if you've done that: The Coders Programming Themselves Out of a Job.

    I feel like this is going to be a rehash of the same arguments.

  4. CNET's take is "No, half of The Last Jedi haters were not Russian trolls". They're position is that it's a lot more complicated: the sample set was only 1k tweets directed at Rian Johnson, and so missed all the others (eg: those to Mark Hamill, who has way more followers); the researcher manually "cleaned" the tweets, removing ones he didn't think applied; he decided himself what was a negative vs positive vs neutral, leaving it open to argument; and the media reporting is distorting the numbers and conclusions.

  5. Expand your responsibilities on The Coders Programming Themselves Out of a Job (theatlantic.com) · · Score: 2

    My recommendation is to be upfront, tell them right away, and request more responsibilities be assigned to your role (ie: take on more work.)

    I'm speaking from personal experience, as I've been in this situation in several previous jobs. Among the job responsibilities would be one which was a manual task that could benefit from full or partial automation. In some cases it was easy, like the data entry described in the summary. Other times it was error-prone work, where partial automation didn't reduce the time so much as reducing the errors.

    In all cases, I first confirmed with my employer that I could spend work time to do the automation (about 60% said yes). If they said no, I asked if I could use company resources (ie: my computer, the impacted server, etc) during non-work hours (eg: lunch hour) to do it. In only one case was the answer still no, and for that case there's nothing you can do - either do it manually or quit.

    Once the task is automated, laud it as an accomplishment and ask for more work. I have yet to find a single employer who was unwilling to assign more work to a resource with a proven track record of getting things done. If it's a tech shop try to talk it into getting moved from QA or DevOps to dev (assuming you want to), or promoted from junior to intermediate. If it's a non-tech shop, you'll likely be asked what else you can automate. My only recommendation there is to talk to the people currently doing the tasks before you suggest you can automate them. The panicked look on the face of a lifer whose job I had proposed automating is one of my biggest regrets (it turned out OK in the end, they retrained him to manage warehouse staff.)

  6. If only you could point out the part where trading oil and gas stocks has any relation to trading Tesla stock. Or are you privy to information that is not public about this traders activity.

    The summary leads off with the line "One of Tesla's biggest anonymous trolls/shorts", which means he was short selling Tesla stock. Short selling is a bit complicated, but it boils down to making a profit when a stock's value decreases. So he stood to make financial gain by lowering the value of Tesla stock.

  7. I decided to google it, apparently there's an entire Wikipedia article on the Eco-Drive watches (I forgot that was the name of the range my model belongs to.) According to the article and its references, it has a secondary battery that will live 20 to 40 years.

  8. My Citizen WR 100 SolarTech will be 19 years old in September, and still works wonderfully. It doesn't have atomic time sync, but keeps time accurately enough that there's no drift during the 6 months between Daylight Saving settings.

    Another poster mentioned his uses a capacitor not a battery - I'm not an electrical engineer, but don't capacitors drain faster and have a voltage drop-off as they drain? My watch keeps time even without charging - I can leave it in a drawer for 2 months and it's still going smoothly with the correct time when I pull it out. I always assumed that meant it had a reasonably sized rechargeable battery?

  9. - The weight - the module itself for a 500W laser comes in ~5kg. Even if they somehow got the module to fit in the 6kg they claim it weighs, the batteries and watercooling will pack on an additional 6-10kg.

    The summary and article both claim 6 lbs, not kg, making it an even more unlikely claim.

  10. Re:Not just the median. on Police Chief: Uber Self-Driving Car 'Likely' Not At Fault In Fatal Crash (arstechnica.com) · · Score: 1

    Interesting series of tweets: https://twitter.com/EricPaulDe... The median looks like it has fancy, inviting paths, but it also warns you not to use them.

    Those two paths crossing in an X shape are for diverting traffic during construction. When you need to close off all the lanes going in one direction, you split the lanes on the other side to allow side-by-side traffic in opposing directions, and use the path to divert traffic over to that other side. They're very common in split highways, especially when going under an overpass (due to the need to block traffic when doing work on an overpass.) It's just an unfortunate coincidence in this case that it looks like a sidewalk and goes in a direction that some pedestrians wish to travel.

  11. Re:Can't get Meltdown/Spectre JS exploit to work on When F00F Bug Hit 20 Years Ago, Intel Reacted the Same Way (itwire.com) · · Score: 1

    I've tried this exploit code on Win10 with full updates in FF+Chrome+IE, and on LineageOS 14.1-something on FF+Chrome+stock browser. All just give the output "0".

    If you've applied the latest patches, then you're already protected. MS released the patch on Wednesday, January 3rd. I see from a quick search that LineageOS is an Android distro. Google announced their patch early this week, though I don't know which Android distros have incorporated it and pushed a new release. Assuming the exploit you linked is legit, you probably want to test it with an unpatched system instead.

  12. Linked page was just a press release on How To Check If You Interacted With Russian Propaganda On Facebook During the 2016 Election (recode.net) · · Score: 2

    There's no tool at the linked page, or at least not displayed to me. Just a video and some bullet points saying that FB takes security seriously, will be removing fake accounts, and provided 3k ads to Congress. I'm in Canada and logged in to Facebook from a Canadian IP address, is this tool only being displayed to people who visit from an IP address geo-located to the USA?

  13. Re:This may not have been Equifax on Equifax Website Hacked Again, this Time To Redirect To Fake Flash Update (arstechnica.com) · · Score: 3, Informative

    This sounds suspiciously like a DNS poisoning attack, which could have been impacting his ISP, but targeting a domain used by Equifax. Such attacks are completely outside of the control of the target. https://en.wikipedia.org/wiki/...

    That's a possibility, but the story is subtitled "Malware researcher encounters bogus download links during multiple visits.", and one would hope a malware researcher would have considered it. The article says it could be due to an ad the site was displaying:

    It's not yet clear precisely how the Flash download page got displayed. The group-sourced analysis here and this independent assessment from researcher Kevin Beaumont—both submitted in the hours after this post went live—make a strong case that Equifax was working with a third-party ad network or analytics provider that's responsible for the redirects. In that case, the breach, technically speaking, isn't on the Equifax website.

  14. Re:Not an off the shelf weapon on Las Vegas Shooting Leaves at Least 50 Dead, More Than 200 Wounded (wsj.com) · · Score: 2

    My point here is this: gun regulations do affect the amount of deaths by guns

    Maybe. I think there's also a significant cultural aspect. One telling statistic: There are more knife murders per capita in Chicago than in Toronto. That can't be blamed on guns, and neither city has any knife restrictions.

    Toronto is in Canada, which does have knife restrictions. See also some of the better knife forums where this question comes up a lot.

  15. Implement SPF and DKIM on Why Google's Gmail Phishing Warnings Give False Positives (vortex.com) · · Score: 4, Informative

    GMail won't normally mark your email as spam/phishing if you've implemented basic mail server identification such as SPF (Sender Policy Framework) and DKIM (DomainKeys Identified Mail). This is well known, and I guarantee that if the author bothered to search for why their mail ends up flagged by GMail he would hit at least one of these two terms in the first few results.

  16. Reddit discussion on hyperloop pop failure modes on Ask Slashdot: What Would Happen If a Hyperloop Train Failed? · · Score: 2

    I came across this Reddit discussion for their entry in the hyperloop competition. It includes a spreadsheet and comments about various failure modes and mitigations. page 1, page 2.

  17. "Protest" or "Rally"? on Americans Plan Massive 'Net Neutrality' Protest Next Week (theguardian.com) · · Score: 1, Informative

    Americans Plan Massive 'Net Neutrality' Protest Next Week

    Don't people normally protest against an action or idea? If they support a given cause, it's usually called a rally.

  18. Re:I haven't used Java since my college days... on Java EE Is Moving To the Eclipse Foundation (adtmag.com) · · Score: 1
    s/undo/undue

    Stupid auto-correct.

  19. Re:I haven't used Java since my college days... on Java EE Is Moving To the Eclipse Foundation (adtmag.com) · · Score: 2

    As a former NetBean IDE user, I find this development disturbing.

    This is just the Java EE spec moving to the Eclipse Foundation, not Java SE or the standard Java SE implementation. So while it may slightly increase Eclipse IDE adoption, the decision won't have undo impact on NetBeans, IntelliJ or other IDEs.

  20. Proper link to the top 14 list on Are Top US Startups Really Startups? (om.co) · · Score: 5, Informative

    Pitchbook, a data research company has come up with a list of top 14 most valuable startups in the United States[om.co].

    Here is a link to the actual list by Pitchbook, rather than linking to the reporter's own article on the subject. msmash, it would probably be good to update the summary to use that url for the first link, since that's where people will expect it to go.

  21. Re:Unrealistic expectations on Salesforce Fires Red Team Staffers Who Gave Defcon Talk (zdnet.com) · · Score: 1

    A cell phone you don't need to refill every month, but stays active like maybe a $1 a month, just to leave in your car's glove box that needs to be recharged every month or two. That's the dream.

    That's achievable in countries outside North America. I lived in New Zealand until a few years ago, and much prefer their cell plans to what I see in Canada. In NZ I could put $10 on a pay-as-you-go phone (I was using Vodafone), and that $10 was active for 1 year. Put on to a Nokia 1101 (I know, laugh away), which lasted a month on a charge if no calls were made, and it was great for emergencies.

    Here in Canada pay-as-you-go recharges seem to be valid for a maximum of 30 - 60 days (depending on how much you pay?), after which the balance expires (ie: the company steals it from you and puts your balance to zero.) Add in the fact that I have to pay to receive calls, and I fully understand why Canadians say they're being ripped off.

  22. Dammit, hit the wrong mod option, meant to mod this up not down. Posting to undo my downmod.

  23. He keeps them all online? Does his provider not have a pop3 option to download everything he has been hoarding on their servers and sort from there at his own leisure?

    Yes, they do, and I agree that's the obvious answer.

  24. So did the reviewer, upon completing the first round with the four machines, then rotate the software under-test across the machines, rerun, rotate again, rerun, etc?

    I watched the video, and yes, they rotated the tests. They first ran multiple baselines on each machine to identify the variances and weed out any dud machines. Then they ran the test multiple times on each machine, using each of the four browsers multiple times. This testing took a long, long time, because they had to wait for all of the laptops' batteries to run dry before ending each test, then fully charge them before the next test.

    What were the parameters of the test? Was this some kind of scripting that compelled the browser to pull content without user interaction? How was that achieved, and could extra usage from that software have skewed results? What content was pulled-down? Were different kinds of content, reflecting different kinds of users/usage pulled-down?

    He explains the test parameters within the first few minutes of the video. They ran their own tests first, to measure how the browsers would respond to "normal" usage (some browsing and then watching a video until the battery dies.) Then they followed Microsoft's published test methodology, using all four machines and running each browser on each of the machines in multiple tests. Then they show the minimum, average and maximum for each browser, and include machine-specific results so you can see the variance across machines. They also tested with and without the recent Windows 10 Creators update, which to me gave the most surprising results. (Spoiler: before the update there was huge variance in Edge results, even on the same machine! After the update the variance was very small.)

    I ask all of this because it affects the results. A single browser on a single laptop is a sample size of one. If the testing involved four out-of-the-box laptops with new batteries an dfour browsers, then one has a single data point for each browser. More testing is probably necessary to establish real results instead of just generating fanboy arguments.

    If you're going to say that someone should follow proper scientific method, please actually check first to see if they did. It's not like this was a 50 page paper on ArXiv, this is just a shortish Youtube video.

  25. I thought they bought gmail mostly working and rebranded it.

    No it was built internally over several iterations. Even when they finally went closed beta in 2004 it was undergoing a lot of change.