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User: MichaelSmith

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Comments · 11,670

  1. Re:best guess of a drowsy mind. on The Hybrid Scooter · · Score: 1

    I ride a pushbike to work but I have seen people riding those small electric scooters in traffic and frankly it would scare me. On my bike I can accelerate and brake faster than anything with an engine. The scooter with its small engine and wheels just can't keep up in the same way. I think it would be a hazard on roads with stop-start traffic.

  2. Billboards on How Google Manages Click Fraud · · Score: 2, Insightful

    Advertisers will pay for a billboard without any guarantee from the advertising company about how many people will drive past the sign, how many of those will read it, how many will take the information in and act on it. The client is assumed to be taking a risk in that regard.

    Over time people decide for themselves whether a particular type of advertising is working for them. If the business keeps coming in why should there be a need for this type of analysis?

  3. Re:In normal units on Blue Origin Will Be VTOL · · Score: 1
    To go those extra few metres you need to tip your pilot

    Or lie about your mass.

  4. Re:P3/P4 Truss and Solar Arrays on Shuttle Atlantis Being Readied For August Launch · · Score: 1
    I watched the Apollo 11 landing live

    So did I, but I can't remember it (damn)

  5. Fluid on Titan's Lakes of Methane and Ethane · · Score: 5, Interesting

    I remember that when the Huygens probe landed there were lots of pictures of dark areas presumed to be lakes with channels leading into them from higher ground. But the probe landed close to a channel and didn't see any liquid.

    Later the consensus was that the channels seen from Huygens were dry channels left over from flows in the past.

    The evidence in this case seems to be the darkness (in radar) of the "lakes", which imply that we are seeing liquid Methane or Ethane. So why are these areas different from the Huygens landing site? It is in a polar area (gee I wish we had a second probe now) but most of the heat on Titan comes from internal sources anyway so having the sun close to th horizon won't make it much colder.

    In any event Arthur Clarke is looking more right then wrong at the moment, We should be on the lookout for a Methane Monsoon.

  6. Re:In normal units on Blue Origin Will Be VTOL · · Score: 2, Funny
    to an altitude of 99 kilometers

    I suspect that a rounding error crept in there.

  7. Re:Only solves 50% of the problem on Solar Power Minus the Light · · Score: 1
    by the time you're done you're going to be spending $200,000 on solar panels to run your house.

    I am thinking more about office buildings with unused roof space. If you write the building regs to require solar cells to run the aircon systems you will increase the economies of scale in solar cell manufacture and drive costs down overall.

  8. Re:Hmmmm on Blue Origin Will Be VTOL · · Score: 1
    Sounds like a Saturn V rocket

    Saturn V didn't land. As the basis of a single stage to orbit system I think this is very interesting. The hardware associated with staging caused the loss of both shuttles.

  9. Scales better than SS1 on Blue Origin Will Be VTOL · · Score: 4, Interesting

    SpaceShip[12..] is a design which will only work as a straight up-down suborbital vehicle. The basic idea behind Blue Origin: to have a straight forward rocket with a high mass fraction can be made to scale towards semiballistic lobs and eventually orbit. Its a good way to go.

  10. Re:Only solves 50% of the problem on Solar Power Minus the Light · · Score: 4, Insightful
    Hm, looks simply like a small sterling engine or mini gas turbine used to drive an AC

    Summer power consumption by aircon units determines max peak load on the power grid here in Melbourne, Australia. I think aircons should run primarily on photovoltaics because that way you get the highest power when it is needed the most.

  11. Re:AMB not free software friendly on High Tech Tour de France · · Score: 1
    Oh, and hello slashdot! (first post)

    Hello yourself number 990860. I sure hope slashcode doesn't have a seven digit bug.

  12. Re:Also mechanical tech on High Tech Tour de France · · Score: 3, Informative
    On a normal bike you can use your body weight to climb more efficiently, not so with a recumberent.

    Recumbents are better aerodynamically, but worse mechanically. The torque from pedals to back wheel has to be transmitted over a longer distance and the frame has to be correspondingly heavier. The longer frame makes fighting gravity harder and adds to frame mass.

    Also I can imagine (but not prove) that the horizontal riding position makes it harder to make a good pedalling stroke with even torque around the stroke. The nose down and forward position is better for situational awareness. The recumbent position is better for looking at clouds (as in a sailplane).

  13. Re:P3/P4 Truss and Solar Arrays on Shuttle Atlantis Being Readied For August Launch · · Score: 1
    it will definitely be one of the most complicated spacewalks ever performed.

    You may be right, but people tend to forget the apollo lunar surface EVAs when they say that.

  14. Re:Since when ? on NPR Looks to Technological Singularity · · Score: 1
    full duplex video conferencing.

    Yeah we have that where I work. People nod when they introduce themselves at the start of the meeting. You can just see mouths moving. We don't work on whiteboards or anything because it doesn't have the resolution. A lot of the time at the other end of the link you can watch the photocopier repair guy working on a machine in the next room so the $200/hour link isn't going totally to waste.

  15. Thanks on Anna Konda, the Robotic Firefighter · · Score: 2, Insightful

    Its nice to hear from people who actually know their stuff. I can't think of any other forum where that can happen.

  16. Lease back on Walk in Space for $15 Million (Plus Airfare) · · Score: 3, Interesting

    Since space adventures are (apparently) doing so well with their business perhaps they should buy the ISS. NASA doesn't really need to own it anyway.

    They could lease back a couple of permanant spots in the station from the new owners and establish an arrangement for safe harbour in the case of a shuttle failure, at least until 2010.

  17. Re:NASA not informed? on Walk in Space for $15 Million (Plus Airfare) · · Score: 4, Interesting
    who's to stop them?

    Assuming that this is an EVA from the ISS they could egress from the Russian airlock but if there is a problem with that airlock they may have to enter through the US airlock. While outside they may have to interact with US hardware such as the external surfaces of the modules, communication gear, etc.

    I think NASA should definitely have a say in who does EVAs around the ISS.

    Also I think an EVA from a Soyuz would be out of the question on safety grounds.

  18. Re:Open Nodes on Could That Be The Wireless Police Knocking? · · Score: 1
    The default for all wireless routers should be to allow traffic from anyone, but to give the owner priority.

    The default for all cars, bicycles, jet aircraft and MRI machines should be to allow use by anyone, but to give the owner priority.

  19. Re:Why single out wireless protection? on Could That Be The Wireless Police Knocking? · · Score: 4, Interesting
    They don't require you to lock your car door when you park in your parking space. How is this any different?

    It was on dumblaws.com (I can't find the link now) and its true that here in Victoria, Australia it is illegal to leave your car unattended with the keys in the ignition. I have an friend with OCD who loves to point that out to people.

    Its stupid but it keeps the stupid people happy and gives them something to talk about.

  20. Re:Potential lawsuit? on Could That Be The Wireless Police Knocking? · · Score: 1
    Besides, maybe some people don't care if they open up their internet connection!

    I run an open AP in my house. There might be enough range for my neighbours on the west side to use it and thats fine with me. I have a 48G/month cable connection. Traffic between my nodes runs over SSH or a different SSL application.

    These people should just get a wireless service for the entire complex and be done with it. Wireless access is rapidly becoming a free loss leader anyway.

  21. Re:Project Orion? on Project Orion to Bring U.S. Back to the Moon · · Score: 2, Informative
    Using nukes to "lift" anything would be utterly insane.

    I wonder if you have read Footfall by Larry Niven?

    The Orion launch is a classic IMHO: God was knocking, and he wanted in bad

  22. Re:Walkman ? on UK Street Crime Rise Blamed on iPods · · Score: 1
    was it the same with the Walkman ?

    Perhaps not walking around. The walkman wasn't that portable. But a lot of people used them in the car or at home.

  23. Re:the "Christopher Walken" method? on UK Street Crime Rise Blamed on iPods · · Score: 1
    I was hoping it'd show you how to dance like a maniac then fly off into the sky :(

    It stinks.

  24. Re:Magnets?? on UK Street Crime Rise Blamed on iPods · · Score: 1
    Is it really that good an idea to have a magnet that close to your ipod?

    Only if the secret storage mechanism inside is mag tape.

  25. Weapon? on UK Street Crime Rise Blamed on iPods · · Score: 5, Insightful

    Summary:

    The muggers held 'a semi-automatic weapon to the back of Cocker's head

    TFA:

    His assailants held what felt like a semi-automatic weapon to the back of Cocker's head

    For all I know an opened glass coke bottle feels exactly like a semi-automatic weapon when it is pressed into the back of a persons head. The words felt like make all the difference.