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User: willy_me

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  1. Re:So Make Hydrogen on California Has So Much Solar Power That Other States Are Paid To Take It (mic.com) · · Score: 1

    with no relationship to the demand for water.

    Actually, would peak solar activity not align with agricultural water requirements? If not, it would be relatively easy to store the water - just put it into a reservoir.

    it's a totally worthwhile capital investment to make massive desalination capacity that you run a tiny percentage of the time

    A much better point. Question is, what portion of a desalination plant's cost is for the energy consumed? If cost is driven primarily by energy consumption then the idea might be worth considering.

  2. Re: Fad languages don't live long on Is Ruby's Decline In Popularity Permanent? (computerworld.com.au) · · Score: 4, Insightful

    And PHP. With the release of the PHP 7, it's now faster in some cases than python.

    Like a race between a snail and a tortoise...

    If one is going to tout the virtues of these languages - do not use speed. Their strengths are elsewhere.

  3. Re:Petty useful on Windows 10 Will Soon Protect Files and Folders From Ransomware (theverge.com) · · Score: 2

    Use a NAS in place of a USB backup drive. Run ZFS or (I assume) btrfs and take snapshots on a regular basis. If any software on your PC decides to encrypt your NAS share, you can revert to a previous snapshot.

  4. The article little to do with x86 vs ARM market share. It is basically a comparison of different single board computers (SBC). To bring up x86 is kind of pointless - especially considering that Intel just killed the majority of their boards.

  5. Rough-cut are not 2" by 4" anymore. Saws used to have a 1/4" kerf. A rough-cut 2x4 would then be more like 1 3/4 x 3 3/4. After drying and planing the final size would be 1.5 x 3.5.

    Modern mills use a band-saw blade - a massive blade that is over a foot wide, sharpened on each end, and only ~1/16" thick. This generates minimal losses and maximises the obtained lumber from a log.

    First the log is scanned and a computer determines how to best turn it into lumber. The water content is known so the cuts can be positioned to minimise planing losses. Hydraulics adjust the log position for each cut based on the calculated solution. Final lumber is just a little over 1.5 x 3.5. Once planed, it is exactly 1.5 x 3.5.

  6. How about something more likely.

    1) Russia scored when hacking. Part luck and part hard work.

    2) Wanting to get the most out of their hack, the Russians dangle knowledge of the hack in front of the Trump team. "Scratch my back and I'll scratch yours."

    3) The Trump team jumps on the opportunity. Notice how Trump pushed through a policy for the Republican party that no weapons should be given to Ukraine? That was back scratching.

    4) Release of the Hillary emails was perfectly timed and Trump gets elected.

    5) Since then, the Trump / Russia relationship has soured. But Putin is still able to remind Trump that he has proof of Trump lying. Remember the White House visit just a couple of days after Comey was fired? That looks bad and Trump knows it. But since it was requested by Putin, he has to follow through. This is Putin yanking Trumps chain - a subtle reminder of the damage Putin could inflict upon Trump.

  7. Re:Another 40% improvement in CPU performance? on Apple Announces New 10.5-Inch iPad Pro With Narrower Side Bezels, 120Hz Refresh Rate Display (9to5mac.com) · · Score: 1

    If you read the original article, the 40% improvement is in GPU performance. Thought it was a little too good to be true - but impressive all the same.

  8. Re:Another 40% improvement in CPU performance? on Apple Announces New 10.5-Inch iPad Pro With Narrower Side Bezels, 120Hz Refresh Rate Display (9to5mac.com) · · Score: 4, Interesting

    If true, the single threaded performance of an iPad Pro will now rival that of the MacBook Pro - and be about twice the speed as the fastest Android device. From Geekbench - 4667 (A10x) vs 4282 (i7-6920HQ) vs 1953 (Exynos 8890).

  9. Re:Wrong socket? on Working Theory In Jet Crash: IPhone In Cockpit Is To Blame (appleinsider.com) · · Score: 1

    USB power negotiation is sort of crap. One can only assume the iDevice decided to draw too much power and the host was not capable of delivering the power and not smart enough to respond to the over-current event. Bad host USB design. USB-TypeC connectors completely revamp the way power delivery is negotiated and finally correct this issue with USB.

  10. Re:Capacitors! on New Solar Plane Plans Non-Stop Flight Around The World (bloomberg.com) · · Score: 1

    I second that. At 50 deg below zero, it is hard for a light (LiPoly) battery to work correctly. This requires heating the battery modules to ensure they do not drop below freezing. But supercaps hold ~100 times less energy per unit weight so I suppose it depends on space limitations and the overhead associated with using LiPoly batteries. Scaled up (ie, 787), batteries are probably better. For this application, who knows...

  11. Re:Rise of ASICs? on Apple Is Working On a Dedicated Chip To Power AI On Devices (bloomberg.com) · · Score: 1

    Are companies going to now turn to ASICs to get the competitive edge?

    You do not design the hardware only to then find a suitable application. If a company wants a competitive edge it must first figure out what it wants to do. Then it finds the most efficient way to do it. This could involve an ASIC - but this is not required.

    Overall, I do not see a trend towards custom silicon. A limited market always existed and it continues to exist. If anything, the reduced cost of general purpose devices (CPU,FPGA) make custom silicon far less attractive then before.

  12. Re:Thunderbolt requires "active" cables - Fail on Intel Drops Thunderbolt 3 Royalty, Adds CPU Integration and Works Closely With Microsoft (windowscentral.com) · · Score: 5, Interesting

    USB 3.1 - Type C also requires active cables when going over 10'. Then there are cables for Apple iDevices that also happen to be active without costing a mint. I do not think Thunderbolt 3 will require outrageously expensive cables in the long term. Right now? Sure, but that is because demand is still quite low.

  13. But x86 today translates the instructions to risc internally anyway.

    No, internally there is no CISC or RISC - just multiple stages of the CPU. The internal microcode is derived from the input CISC/RISC instruction and controls the hardware along the various stages of the pipeline. To suggest the CPU is RISC internally is erroneous because internally it is neither RISC or CISC.

    But powermacs used more ram in the 1990s than WIndows because risc cpus created more code to bloat it in disk and ram

    A bit of a stretch considering the platforms ran different operating systems. Remember that we are taking about an OS (MacOS) that never even had real virtual memory. I would suggest that compiler and coding inefficiencies had far more to due with difference in memory requirements. Far more incentive to optimize when deploying on Windows.

  14. Both CISC and RISC translate to an internal CPU microcode. The difference is that the RISC translation is generally much simpler requiring a smaller portion of the CPU die. But as CPUs get larger, this difference becomes less relevant when looking at the overall CPU.

    There are no real advantages to CISC. One used to be able to argue that the required instructions are more compact but ARM CPUs demonstrated how a similar effect can be accomplished with their Thumb2 instructions. But there are also no longer any real disadvantages to CISC either - at least with reference to larger PC class CPUs.

    So it comes down to backwards compatibility with existing software - the real reason why most of our desktops are currently powered by a CISC architecture.

  15. Re:Of course he's serious on Trump Has Grand Plan For Mission To Mars But Nasa Advises: Cool Your Jets (theguardian.com) · · Score: 1

    Same with his take on negotiations with foreign countries. He is used to negotiating with private companies for services and applies the same logic to negotiating with foreign countries. Does not work that well.

    With private companies there is competition. If company X can not build it, company Y can. The threat of sending work from company X to company Y can help get the best price from company X. One company can always be replaced with another. The same is not true with countries. One can not "negotiate" with different parties along the northern or southern borders. It is how it is -- there is no alternative.

    So we see Trump putting together a draft executive order to dispel NAFTA. It is televised to ensure Canada and Mexico are watching. What a lame attempt to intimidate. The negotiators from the two countries must be shaking there heads thinking "damn we have to deal with a moron". So they placate him and carry on. But at no point will this result in a better deal - these are professional diplomats not the construction companies Trump is used to stealing from.

    Know that feeling of watching a friend be an ass in front of a stranger knowing that you are associated with this idiot but there is nothing you can do but shake your head? That is how I feel when I watch Trump.

  16. Re:I agree, but not for the same reasons as Musk on Why Elon Musk Doesn't Like Flying Cars (yahoo.com) · · Score: 1

    Would the increased pressure from the incoming vehicle not push the vehicle with lost propulsion forward? The entire point of the hyperloop is to have a tight fit between the vehicle and the loop interior so that vehicles travel with the air and do not have to overcome wind resistance. I would think that if a vehicle lost power then then the incoming vehicle would come to a stop long before they collide. Worst case scenario, the broken vehicle experiences an acceleration event as the the pressure builds behind it then eventually comes to a stop. As the broken vehicle accelerates, the incoming vehicle decelerates. One could even monitor air pressure to detect such an event from beyond line of sight and act accordingly.

  17. Re:(sigh) You people still think you're engineers on Oregon Fines Man For Writing a Complaint Email Stating 'I Am An Engineer' (vice.com) · · Score: 1

    The story is about an EE.....not some dude who said he is a Software Engineer or an network Engineer....

    I know MCSE and MSCE look similar but they have different implications. An MSCE is a certified engineer with many years of post-bachelor education and practical training whereas MCSE is some Microsoft thing. Night and day difference. Like comparing the neighborhood drug dealer to a MD at a hospital. They both sort of do the same thing but good luck suing the drug dealer.

  18. Do not jump to conclusions... on AT&T Brings Fiber To Rich Areas While the Rest Are Stuck On DSL, Study Finds (arstechnica.com) · · Score: 1

    Wealthy areas generally have newer housing which would be easier to service. Older buildings are harder to connect with the last mile of fiber. It is coincidental that the older buildings, on average, are occupied by people with a lower median income. What would be interesting is if instead of using median income to generate the statistics, the age of the infrastructure was used. There will be pockets of expensive old houses which could clarify things. If they get fiber access despite being hard to provide then there might be cause for concern.

  19. Re:RAM has caught up with CPU speeds? on G.SKILL Hits 4500MHz With All-New Trident Z DDR4-4333MHz 16GB Memory Kit (betanews.com) · · Score: 2

    Then speeds diverged, making various levels of cache necessary.

    It is not the difference in clock rate that necessitated the use of cache, it is the latency. The physical constraints of having memory located on a DIMM external to the CPU result in unavoidable latency. Once you implement a cache to get around the latency, the CPU speed and memory speed are no longer linked. Introducing memory that runs at the same speed does nothing to change this - you are still using a cache to avoid the latency.

  20. Re: What about the delivery of insulin? on Apple Has a Secret Team Working On Non-Invasive Diabetes Sensors (cnbc.com) · · Score: 3, Insightful

    If what they say is true, this monitor would be in the form of a watch (or something similar) and be able to monitor blood sugar levels automatically. The user would then be alerted in the event they need to take action. Alerts would be provided immediately and not depend on an individual having to test themselves. Solves the problem of people forgetting to take their insulin. This differs from current CGMs and could legitimately be called an advancement - if it ever works.

  21. The future will eventually involve embedding RAM into the CPU core as ATI has done with their GPUs. Lower latency and can run at a lower voltage thereby requiring less power. They can also better control the shielding to allow for reduced voltage swing when communicating. Amazing how much power is required just to drive the signal lines between memory and the memory controller.

  22. Re:Uber is right on Canada To Tax Ride-Sharing Providers Like Uber (www.cbc.ca) · · Score: 4, Insightful

    Even worse, using Uber increases congestion. The time an Uber vehicle spends on the road without a client is "congestion overhead" that would not otherwise not occur if the client drove their own car. Uber definitely helps with parking issues but that is about it. One could argue that it helps keep larger vehicles and trucks off the road but I do not know many truck drivers that would use Uber as an alternative to their truck. Some statistics with regards to this would be interesting.

  23. Re:I don't like this trend anyway on Why Samsung Ditched On-Screen Fingerprint Scanning For Galaxy S8 (theinvestor.co.kr) · · Score: 1

    Hence the fingerprint reader

    The fingerprint reader does solve the described problem, but I would suggest the real reason was to support Apple Pay. This allows for a new source of income thereby generating strong motivation for getting the hardware together. The improved user interface is an added bonus which otherwise might not have validated the additional cost associated with an early introduction.

    And Apple did a good job with the fingerprint reader - not perfect but it is secure. Not even the OS gets a chance to read your fingerprint due to the dedicated hardware. Overall an excellent design which others should aspire towards.

  24. With the difficulties regarding maintenance in an underwater environment and the limited number of places this could be applied, I second your question. Pumping water uphill is one option but there is also the option of compressing gas by pumping (clean) water into pressure tanks. Compressing gas should support the same energy density without the difference in height.

  25. Re:Should have listened on Garmin Engineer Shot And Killed By Man Yelling 'Get Out Of My Country!' (theverge.com) · · Score: 1

    Ownership is determined by the winners of history. There is no need to apologize or make amends for that fact, it simply is what it is.

    Absolutely correct. But when government makes a deal, it had better live up to their side of the deal. The problem that some native Americans have is that government is not adhering to their end of the deal. Imagine the Feds coming by and taking your house without giving you any compensation - one could not blame you for being upset.

    The problem is that the original deal was crap. Not fair, ambiguous, and at times, possibly illegal. We are talking about ancient documents that were put together hastily in a time when people simply did not care. So it has to be cleaned up but doing so is easier said then done.