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User: brad3378

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Comments · 537

  1. Re: Tesla is a fraud on Tesla Deliveries Are Down 31% From Last Quarter -- But Up 110% From Last Year (forbes.com) · · Score: 1, Informative

    "They were still moving, but we couldn't get them out because the fire was too intense," a man who tried to help told Local 10 News.

    https://www.local10.com/news/l...

  2. Re:"Detroit's" Real Challenge on Will Tech Leave Detroit In the Dust? (wsj.com) · · Score: 1

    Variable pricing throughout the day, like the Uber model, will dampen the peaks and valleys of the demand curve.

    Throw a 20 passenger Uber Bus business model into the mix and things will really start to get interesting. Shopping centers might even subsidize the trip.

  3. Re:Cost twice as much as In-N-Out on Burger Robot Startup Opens First Restaurant (techcrunch.com) · · Score: 1

    To be fair, his restaurant is located in one of the most expensive cities on the planet.

    He also doesn't have the advantage of economies of scale like a big chain restaurant.

    And to be fair, his restaurant offers many more customization choices than In-and-Out. $6 for a burger is reasonable.

    All that being said, I wouldn't go out of my way to eat there.

  4. Re:Just an excuse on Intel CEO Brian Krzanich Resigns Over Relationship With Employee (theverge.com) · · Score: 1

    Burger King?

  5. In version 58 and all prior versions you could type "about:" in the URL window to quickly determine which version you were running. In 59, this feature is no longer available, however you can still type "about:ram" to check RAM usage.

  6. According to the Tesla forums, it's not uncommon for Teslas to spend 3+ months in the repair shop.

    They can't sell these factory-damaged cars at full price so they should just use them as loaner vehicles.

  7. Re:Repurposed an old Galaxy tablet...? on Samsung Made a Bitcoin Mining Rig Out of 40 Old Galaxy S5s (vice.com) · · Score: 1

    I'd be happy if they would just make a video adapter for used phone displays so I could get 1080P video from a Raspberry Pi.

  8. Re:government or technology restriction? on Super-Accurate GPS Chips Coming To Smartphones In 2018 (ieee.org) · · Score: 3, Interesting

    Be sure to check out the new L5 technology.

    Fascinating stuff.

    https://hothardware.com/news/b...

  9. Re:Cancelling order on Tesla Model 3 Test Drive: Car Has Bite and Simple Interior (wsj.com) · · Score: 2, Insightful

    Does anyone else find it ironic that the most popular car on Slashdot is also the most difficult to hot rod?

    It really is the Apple of automobiles.

  10. Re:In Communist Europe... on It's Been So Windy in Europe That Electricity Prices Have Turned Negative (vice.com) · · Score: 3, Interesting

    I wonder if it would be cost effective for utility companies to get into the cryptocurrency mining business? Surely it would help avoid situations like this where they actually lose money (temporarily) by adding green power to the grid.

    If they had 40 foot shipping containers filled with cryptocurrency mining computers that could be moved around by truck and plugged into the grid as needed, it might help offset costs. Obviously it would be smarter to use electric car fleets to absorb the extra capacity, but maybe this would help too?

    Even if it only helped to make bitcoin mining less cost effective in coal powered regions of the grid, it might still be worth doing.
     

  11. Re:The Untold History of the United States on What Are Some Documentaries and TV Shows That You Recommend To Others? · · Score: 1

    Interesting DPRK video.

    That steel mill was definitely not like any I've ever seen in the United States! Their workers are much better singers too! LOL

  12. en.wikipedia.org/wiki/The_Century_of_the_Self on What Are Some Documentaries and TV Shows That You Recommend To Others? · · Score: 1

    https://en.wikipedia.org/wiki/...

    All four parts are worth watching, however I consider part one to not only be thought provoking, but also life changing. It's certainly worth an hour of your time.

    https://www.youtube.com/watch?...

  13. Why aren't 12V Lithium car batteries more popular? on Interviews: Ask Lithium-Ion Battery Inventor John Goodenough a Question · · Score: 5, Interesting

    I've noticed that replacement lithium polymer battery packs for hybrid cars sell often sell for less than $1000 on eBay, while much smaller lithium based 12v batteries for conventional cars (with starter motors) often sell for more. As an example, here is a battery suitable for starting a small V8 that sells for $1600.00 http://www.jegs.com/i/Lithium-...

    I would assume that it would be much easier to manufacture conventional 12v starter batteries in volume due to the ability to put them in many more different models of vehicles.

    The ability to shave off 30+ lbs of weight from racecars would be enormous, so the demand is there, but why not the supply?

  14. Re:What about displays? on Raspberry Pi Gets Competitors (hackaday.com) · · Score: 1

    Why not skip a dedicated display and just remote login instead?

    Raspberry Pi is now compatible with Teamviewer!

    https://pages.teamviewer.com/p...

  15. Re:Overload, really?? on Smart Electricity Meters Can Be Dangerously Insecure, Warns Expert (theguardian.com) · · Score: 1

    Is there such a thing as a smart meter with an integrated automatic transfer switch (for a generator)?

    Or maybe a smart meter with an integrated switch used in a Wind/Solar installation that feeds back into the grid?

    Those are the only 2 scenarios I can think of.

  16. Correlation between Antibiotics and Obesity? on Microbiome Changes Drive the Dieting Yo-Yo Effect, Study Finds (smh.com.au) · · Score: 3, Interesting

    On a hunch I decided to see if there's a correlation between obesity and antibiotics (which are known to kill both the good and bad types of gut bacteria)

    Here's a map showing antibiotic prescribing rates.
    http://www.cdc.gov/getsmart/co...

    Here's a map showing obesity rates:
    https://www.maxmasnick.com/med...

    Correlation is not causation, but in my unprofessional opinion, these maps look eerily similar.

  17. Re:Tesla builds shit cars on Consumer Reports: Tesla's Model X Is 'Fast and Flawed' (marketwatch.com) · · Score: 1

    To be fair, Reno is kind of a shithole. I certainly wouldn't want to live there. It's so boring there that I heard people will shoot you just to watch you die.

    Nobody wants to build a 500+ acre factory in a desirable city where the land is expensive.

  18. The root problem is the cost of the damage.

    I would implement a parachute system into the design of the drone.

    Parachute systems for drones already exist.

    https://www.youtube.com/watch?...

  19. Re:OMG that's a dodgy check on Hillary Clinton's Campaign Creates Way To Make Money From Donald Trump's Tweets (adweek.com) · · Score: 1

    You forgot to mention the part about the Saudi weapons deals that she helped broker as payment.

    https://www.theguardian.com/us...

  20. Re:Smart refrigerators on Microsoft Helps Develop Smart, IoT-Enabled Refrigerators (microsoft.com) · · Score: 2

    It would also work much better if RFID tags were embedded in food packaging.

  21. Re:Ice cream causes rape rapes on High IQ Countries Have Less Software Piracy, Research Finds (torrentfreak.com) · · Score: 1

    I scream, you scream, we all scream for ice cream.

  22. Re:I'll just leave this here: Koenigsegg does this on Camless Internal Combustion and the Digital Age (hackaday.com) · · Score: 1

    I hope your link gets the attention of the moderators because that was really cool.

  23. Re:Useless Change on Camless Internal Combustion and the Digital Age (hackaday.com) · · Score: 3, Informative

    One more MAJOR advantage of a camless design (if not the single greatest advantage) would be the ability to have extremely canted valve angles. Retrofitting an existing cylinder head design with camless engine technology is only scratching the surface. The biggest benefits would be gained by designing the cylinder head ports around the capabilities of the valve actuators. With cylinder head differences like this, we're literally talking about the difference between NASCAR horsepower levels and streetcar horsepower because cylinder head designs are the undisputed most important factor in making horsepower.

    With traditional cylinder heads (on OHV engines), valve angles are limited by the rocker arms. Rocker arm rotation about one axis is trivial, but when the valve is canted it makes the valvetrain design exponentially more complex and prone to wear due to lateral loads as the angle is increased. A camless engine design wouldn't have this limitation. That being said, the camless designs have their own challenges, namely soft valve seat landings due to a nearly perfect square-wave lift profile.

  24. Re:Don't understand engines, eh? on Camless Internal Combustion and the Digital Age (hackaday.com) · · Score: 4, Informative

    They call it a "Digital Cam" because when you graph valve lift vs time it literally looks like a square wave. The ramps really are that steep!

    This compares to a conventional cam with a sudo-sinusoidal shaped wave lift profile (neglecting the effects of high RPM valve float).

    Criticize as much as you want, but a truly functional electronically controlled camless engine would be the holy grail of internal combustion engine design. You can easily pick up 20 horsepower on many engines just by swapping to a performance cam, but you often compromise efficiency. But with a camless engine, in theory, you could have cylinder deactivation, low compression starts, the elimination of throttle plates (lower pumping losses), "full race-cam" profiles for performance, a cam profile for smooth idling, low emissions, etc....
    Truly the best of both worlds!! That being said, there are disadvantages....

    ---

    I read an interesting SAE paper 20+ years ago describing a working prototype camless engine. The performance gains were impressive, but as I recall, there were two main obstacles:

    1) Noise, Vibration, and Harshness. (NVH)

    2) The valves landed harshly leading to valve seat wear. The SAE paper suggested using a method for softer valve landings.

  25. Re:Not a Raspberry pi competitor. on Atom-Based JaguarBoard To Take On Raspberry Pi (hothardware.com) · · Score: 1

    I would pay extra for x86 just for the ability to run Teamviewer, which is currently incompatible with ARM devices.

    Yes, I know there are alternatives, but I like Teamviewer.