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User: drumlight

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Comments · 48

  1. Re:BBC bollocks fake news shit shit shit on The Ghostly Radio Station That No One Claims To Run (bbc.com) · · Score: 1

    Seems to be a pretty old story and they would be talking about the location previous to 2009 as shown in this old RT news report https://youtu.be/bqkE25mS0ZM

  2. Re:What device can use 1Tb? on SanDisk's 1TB SD Card Aims To Solve Your Storage Problems (zdnet.com) · · Score: 1
    But now

    all porn that can be invented has been invented

    Charles H. Duell

  3. Re:I can't not read that as "Baby Kale" on Windows 10 Haters: Try Linux On Kaby Lake Chips With Dell's New XPS 13 (pcworld.com) · · Score: 1

    The letters qu put together have a sound. That sound is not the K sound.

    This is my excuse for being late when I was unable to able to find the Queens Key address I'd been given on the phone at 8AM. Nothing to do with me being a simple moron at that time of the day.

  4. Re: This is a great loss on Debian Founder's 2015 Death Ruled A Suicide (theregister.co.uk) · · Score: 1

    Clearly it should be renamed to 'Deb'

    show some respect for his contribution .... Debdeadian

  5. Re:Not twice as safe I feel on US Regulators Investigating Tesla Over Use of 'Autopilot' Mode Linked To Fatal Crash (cnbc.com) · · Score: 1

    In the UK nationaly there is one fatality every 174 million miles so about 1/3 more distance covered on all types of roads and conditions in mostly much older vehicles than a brand new Tesla. I'm sure I've been in vehicles with worse drivers but I haven't enjoyed it and I try to never repeat the experience.

  6. Re:Basic arithmetics of good on Carly Fiorina Calls Apple's Tim Cook a 'Hypocrite' On Gay Rights · · Score: 1

    and pity the confused 80's child who grew up with 'bad meaning good'

  7. Re:Easter liability on Is This the Death of the Easter Egg? · · Score: 2

    This might be fairly common as this was reported in Canada a couple of weeks ago.Family finds message in last Kellogg’s box made at London plant

  8. Re:This guy has a better idea on New Concept Tire Could Recharge Car Battery · · Score: 1

    Hopefully this isn't going to remain the case for much longer as regenerative braking systems do seem like a low hanging fruit with the potential for extremely high efficiency. I'm not sure if the F1 KERS solutions employ anything with more general promise than flywheels but it is bound to be a fairly active area of research by others. Toyota and Mazda have tried super capacitor solutions and I don't think it will be very much longer until it is normal to recover almost all the available potential energy when braking in any conditions.

  9. Re:Please be an Onion link please be an Onion link on New Concept Tire Could Recharge Car Battery · · Score: 1
    Actually the 11-16% converting to 2.3kW in the Tesla doesn't really make sense as a conclusion. Also both those links actually seem to point to the significance of rolling resistance as they include the ICE and the combustion inefficiency dominates everything else.
    Looking at the fueleconomy.gov link and only considering the useful output power which is what I was really imagining above; probably less than 55hp for the typical car at cruise and ~22kW for the Tesla. Then while maintaining a cruise the useful power is only split between:
    • Rolling Resistance = 7-11%
    • Air resistance = 11-16%

    Depending on speed either drag or rolling resistance are going to dominate the power required. I really had never considered rolling resistance to be of great importance to a car despite my experiences on a bicycle.

  10. Re:Please be an Onion link please be an Onion link on New Concept Tire Could Recharge Car Battery · · Score: 1

    Thanks, my gut tells me the rolling resistance figures given there are too high. The 11-16% aerodynamic drag given in your two links matches up nicely with the 2.3kW which I estimated was required to overcome drag in the Tesla.
    I've got an EcoBoost Fiesta and during the winter here (Canada) the pressure gauges on most of the air pumps at the gas stations seize in the cold and so are practically useless. When it was finally warm enough to accurately check the pressure in my tires they were all around 30-32psi. After inflating them back to the recommended 38psi I noticed my economy improved from 6.5 l/100km to 5.5 l/100km although admittedly the average temperatures had also warmed up from around -15 to -5C. Even so it was enough of an improvement that I was surprised and will be checking tire pressures more frequently in future.

  11. Re:Please be an Onion link please be an Onion link on New Concept Tire Could Recharge Car Battery · · Score: 1

    I just checked the aeodynamic drag for the Tesla S (0.24cd) using the formula here.
    At 60mph the air resistance will be about 85N or about 2.3kW. This is far less than I would have thought and appears much less significant than the typical rolling resistance.

  12. Re:Please be an Onion link please be an Onion link on New Concept Tire Could Recharge Car Battery · · Score: 1
    A typical rolling resistance of a car on asphalt is 441 N. So the power at 60 mph (or 26.8 m/s) is

    441N x 26.8 m/s = 11.8 kW

    Using wikipedia figures the Tesla seems to require approximately 22kW at 60mph but it is extremely low drag and probably has lower rolling resistance than the typical value above. However I'd bet most cars are using 40kW (~55hp) or less to cruise at 60 resulting in the rolling resistance being responsible for 25-50% of the power requirements. I'm not convinced it would be worth it in many cases but recovering 10% of the energy could provide 1kW, the same as a 70A alternator.

  13. They... on UK Sets Up Internet-Savvy Army Unit · · Score: 4, Funny

    really need to recruit Private Browsing for this unit.

  14. Re:Now if I could just type... on Your Entire PC In a Mouse · · Score: 1

    I assume the whole point is that it is easy to move the brains around with you. A MHL cable instead of HDMI would provide power along with a more flexible cable. Putting the brains and the input interface to a touch based OS in an easily portable devices could be a much more flexible solution than the Chromecast and its ilk.

  15. Re:If you don't want to upgrade your box on Samsung Unveils First PCIe 3.0 x4-Based M.2 SSD, Delivering Speeds of Over 2GB/s · · Score: 1

    I've built a a handful web servers hosting live HLS streams for PEG and hospitality customers and RAM disks are a very simple solution that works great for me. It doesn't take much memory to store just ~30 seconds of a hundred different streams, the encoders can use webdav to push the streams onto the server and Nginx (but probably almost any other webserver) can easily serve 10's of Gbps on the cheapest of the E3 Xeons.

    I can't think of a cheaper and easier solution than a RAM disk for this particular application.

    I'm trying to do a similar thing on the RPi to build a CCTV system. Live streams straight from RAM but to then use the hardware calculated motion vectors to trigger recording onto an SD card. Unfortunately I'm currently stuck trying to find a tool that can perform the HLS packaging of the segmented elementary streams the RPi camera can produce.

  16. Re:Inspections? on City of Toronto Files Court Injunction Against Uber · · Score: 2

    England had yearly safety inspections (the MOT) but in Ontario they do not exist and a safety test is only required when the vehicle registration is transferred i.e. when ever a second hand car is sold to a new owner. I don't think the safety check is required when transferring the ownership to a family member but I wouldn't swear to that.
    I've been utterly shocked at the state of many cars on the road here with no sills left and nothing but rust in other structurally essential parts of the car. I think the OPP can stop cars that they deem unsafe but there certainly is no annual safety inspection and the only required test is a bi-annual emissions check.

  17. Re:Awesome quote on Worcester Mass. City Council Votes To Keep Comcast From Entering the Area · · Score: 2

    I think that is a great for many networks but you can't have a different cable provider to your neighbors without lots of new/redundant infrastructure as the same RF signal is sent to a huge number of people.

  18. I might have a shot at this on What Will It Take To Run a 2-Hour Marathon? · · Score: 1

    I think WADA have classified both alcohol and cannabis as performance enhancing drugs so if I can just drag myself off the couch I assume I'll have a huge advantage and it'll be no trouble at all.

  19. Re:Sponsored by Mars Candies: on The Milky Way Is Much Less Massive Than Previous Thought · · Score: 1

    The astronomers probably just missed the blue car speeding away with the rest of it.

  20. Re:You bet they are "quietly optimistic".. on Researchers Experiment With Explosives To Fight Wildfires · · Score: 1

    I bet they are; its proven incredibly effective on Sharknados and a wildfire should be a much simpler threat.

  21. I'm sceptical on To Reduce the Health Risk of Barbecuing Meat, Just Add Beer · · Score: 2

    I thought all experiments should have a control group, but BBQ without beer... Has that ever been tried before? Can than be credited with two discoveries?

  22. Re:No. on Is Buying an Extended Warranty Ever a Good Idea? · · Score: 1

    Yeah my experience with Futureshops warranty coverage sucked and our camera was actually replaced/reapaired twice without too much complaint. The second time is why I'd never recomend extended warranty coverage. It refused to turn on one day and it would have been outside the manufacturer's warranty. We took it into future shop and they agreed to send it out for repair, it was all handled without too much difficulty. However it was more than 3 bloody months later before we saw our camera again.
    Is the failed device something you actually use? Do you want to go/ can you live without it for 3 months?
    Save the cost of the extended warranty and just buy a better/newer replacement for immediate use on the extremely rare occasions where the warranties might actuallly be used.
    I didn't purchase the warranty above myself and in fact I've only ever bought one which I was delighted with (even if I never use it). From a repair/refurbishment center for Sony they offered a 5 year extended warranty on my PS3, the $50 extended warranty also included 3 brand new games (from a choice of around 50, I took Drake3 and GoW3 plus something else) and a second brand new controller.
    Most extended warranties suck and are just a very nice extra profit for the store, the only time I've ever personally seen one used the experience was so slow I would much rather not have had the warranty at all, I felt obliged to make use of it when it would have been better to just replace the device.

  23. Re:There is no shortage of American talent on Code.org Documentary Serving Multiple Agendas? · · Score: 1

    You might want to ease up on the rum; you go by 'Dread Pirate Robberts' nowadays and don't want to let that secret slip.

  24. Re:Okay hang on, on Cubans Evade Censorship By Exchanging Flash Drives · · Score: 1

    A thumb drive is a method of hitching a lift, flash drives would be something like a Lamborghini and memory sticks are like ummm....Christine maybe.

  25. Re:Windows 7 x64 with XP Mode on Ask Slashdot: Best 32-Bit Windows System In 2012? · · Score: 1

    This was briefly mentioned earlier, but I wanted to state clearly and concisely:

    Windows 7 Professional, Enterprise, and Ultimate all include licensing for Windows XP Mode, a 32-bit virtualized instance of Windows XP SP3. It is an additional download (actually a couple downloads), but it is free. I use it every day at work (on my 64-bit Win7 machine) to run a 16-bit app that was written in 1992, while I wait for that app's replacement to be written. It works perfectly, in fact much better than VirtualBox did for the same use case (there was laggy/odd redrawing issues with VirtualBox, no matter how many resources I allocated to the virtual machine).

    I use XP mode almost daily but find VMware player to be much faster and a more pleaseant experience. I forget the exact steps but it was pretty simple to use the free XP mode download with VMware instead of the default in Win7.