Slashdot Mirror


User: ImWithBrilliant

ImWithBrilliant's activity in the archive.

Stories
0
Comments
80
First seen
Last seen
Profile
(view on slashdot.org)

Comments · 80

  1. flight efficiency on First Human-Powered Ornithopter · · Score: 2, Insightful

    That link is an interesting read. His back-of-the-envelope calculation normalizes a Boeing 747 to just slightly less efficient than the Grey-Cheeked Thrush: 4.79 watts to 4.5. He's right that no one would want to fly an airliner at 31mph, however 1 or 2 people flapping to work at 31mph could someday be highly attractive over driving a car.

  2. When to replace the ECM? on Toyota Pedal Issue Highlights Move To Electronics · · Score: 1

    So is it better to wait to the end of the recall period to get more mature software that better debugged? Or would it be the same version as was rushed out at the beginning?

  3. Re:This means ... on Humans Nearly Went Extinct 1.2M Years Ago · · Score: 1

    There could also be forcing functions that eliminates "strands" from the "rope" before reproduction...

  4. It's Public Law on Robotics Prof Fears Rise of Military Robots · · Score: 2, Informative

    "National Defense Authorization Act for Fiscal Year 2001 (as enacted into law by Public Law 106-398; 114 Stat. 1654A-38) that, by 2015, one-third of operational ground combat vehicles be unmanned."

    I'm guessing they won't all be logistical delivery vehicles.

  5. Re:Humans like Human Pilots on Toward Autonomous Unmanned Aircraft Technology · · Score: 1

    I'm working a very fast cargo transport UAV for DoD that, after cargo delivery to the soldiers, has enough capacity to hold several people. It will have no pilot or joystick, rather flying blind like a cruise missile to its next waypoint.

    Now tell me that if you are combat wounded or reacting to a poisonous snake bite, you'd rather wait for medical treatment via the next piloted lift dispatched once/or if it's safe enough for them? I predict MASH-style evacuations will happen sooner than later.

  6. Re:This sounds so ridiculous... on 1,500-Ship Fleet Proposed To Fight Climate Change · · Score: 1

    Ships are but one end-point solution. To experiment first with the spray/seeding concept, there are plenty of fixed (arid islands, reefs, and other out-of-the-way) locations that could receive excessive salt spray to actually prove out the viability of the concept first.

  7. Re:Women are allowed a larger waistline in Japan? on Japan Imposes "Fine On Fat" · · Score: 1
    Actually any pregnant women over 40 are high risk and very costly to insurance e.g. increased multiples with NICU stays, and longer-term costs like birth defects.

    I bet this article gets more than a thousand posts.

  8. Re:Poor Design **for cargo hauling** on Robotic Aircraft To Supply Troops · · Score: 2, Interesting
    "HUMVEE of the air" http://www.defense-update.com/products/v/vstar.htm

    A humvee hauling military cargo wouldn't put 400 lbs in the trunk per trip, it'd put 1500 lbs on a trailer.

    These are the beginnings toward a good concept since cargo hauling is dull, dirty & dangerous. But VSTAR needs to scale up considerably instead of racking up expensive flight hours with 4 round trips when comparing to a Humvee's operating cost. The key is not the round trip speed but its servicing to keep it flying.

    "Scaling up" to the reality tends to be a gotcha for many novel concepts.

  9. Re:Any Aerodynamics Testing? on Flying Humans · · Score: 1

    Why limit the airfoil surfaces to the end points of the human appendages? Jump with a variant of a hang glider attached so to extend the controllable surface area. Some engineering details to work out between terminal velocity and landing.

  10. CityWatcher.com on California Blocks RFID Implants In Workers · · Score: 1

    No website, are they still in business or did something this controversial put them out?

  11. Define the population on Drinking Alcohol May Extend Your Life · · Score: 1

    I question the cause and effect of the beneficial population since the teetotaler population includes those medicated folk who should not be drinking and are (not coincidentally) in poorer health not likely to live as long.

  12. Off the rock in the short term on What Earth Without People Would Look Like · · Score: 2, Interesting

    That we humans have a "few billion" years to figure out how to move off-rock is a little optimistic given the record of significant events over last few millions, never mind last billion years. Our species barely survived the Toba eruption- events which occur every few million years, then theres the big impacts. Are we taking advantage of the current lull to hedge our survival over the long term?

  13. Re:Surely this will be more use to guerrillas? on Paragliding Military Drones Under Development · · Score: 5, Interesting

    Nothing that can't be done by a bush airplane, and these things cost as much if not more than a used single engine or kit plane.

    I've seen the conceptual UAV project that the new hires at Dahlgren, Virginia worked on http://www.spacewar.com/reports/Successful_Test_Fl ights_Of_New_Armed_UAV.html

    This technology needs a lot of maturation before any combat application including terror: it is very noisy, unstable at speed on the ground, and requires a lot of ground support personnel. Holds exciting promise to a well equipped military for something like convey escort, but it's too high tech for backwater armies.

  14. the primary QOL issue on Earth's Temperature at Highest Levels in 400 Years · · Score: 1

    The primary impact to most folks will be the economic impacts in relocating 40%-60% of the planet's population in about a century as the coastal regions get flooded or wiped out. Those folks will need food, water, shelter, and law they move into undesirable areas like deserts. Lots of opportunity for problems as we discuss future needs for military or virus inoculation infrastucture...

    The sea level changes won't be like a smooth tide rising, rather more like repeating Katrinas as we squander resources in the lulls trying to rebuild infrastructure to lost causes, in addition to the humanitarian assists and relocation support.

  15. Re:hige mileage vehicles are not impossible on UBC Engineers Reach Mileage Of Over 3000 MPG · · Score: 1

    You've got enough documentation to build these inventions. Prove they work rather than whining about cover ups. You'd make a mint off selling portable power sources.

  16. Re:"That's no moon!" on Using Gravity To Tow Asteroids · · Score: 1


    Rather than collecting space junk from Earth orbit, if the spacecraft needs mass, get it from the offending mass of "loosely packed material"- the asteroid itself.

  17. Re:bad move. on College Libraries Without Books · · Score: 2, Funny

    This will last until UT makes the top 10 party school list. Then they'll call that library a student union.

  18. miles from cities on U.S. Broadband Access Falling Behind · · Score: 1
    I don't know a single person without cable or dsl, and this is throughout about 12 states.

    I live in a rapidly growing Virginia county outside Washington DC, 60+ miles or a 2 hr rush hour commute into DC, and neither cable nor DSL is gonna happen in my neighborhood.

  19. Re:Fuel Cells on The Hawaiian Autonomous Undersea Robot · · Score: 1

    Over 8 hours of power for something the size of an SUV? And we don't have these for cars because?

    For the price of a house, you too can drive your SUV with them.

  20. geothermal heat pump experience on Homebrew Air Conditioning for Under $25 · · Score: 1

    I put in a geothermal heat pump in my new home (2001), with it's capacity spec'd about a ton over the recommended size for my house volume. No problem cooling or heating the place.

    pros:
    1. no outside condenser unit (noise, ice buildup, landscape around)
    2. no resistive heating when outside temps drops into the 20s
    3. SEER16 all year round, not just at that test temp for the SEER rating.
    4. essentially mortgaged some of my heating/cooling bill with the upfront expenses

    cons:
    1. builder had never installed one before and turned the issue over to me
    2. upfront cost of 3 200' wells for the closed loop has to be amortized into my savings
    3. holes in my basement wall leaked in big storms from that direction, but then most of them did at one point or another.

    As an aside I've noticed that late-afternoon sunlight heats my western side of the house, probably about the same time as the attic heat starts penetrating the R-38 insulation. Attic vent fan helps a little bit. Also electricity costs about 25% higher during summer months here in Virginia, so it's important to design for cooling.

  21. baby as Mockingbird on Bird Brains Explain How Humans Learn to Talk · · Score: 1

    I was just commenting yesterday how my 7 mo old girl incorporated her identical twin sister's squeal into her babblings- that it reminded me of the incorporation behavior of a mockingbird.

    Interesting observation on motor skills: she is not crawling yet, while the sister is getting around nicely yet not babbling nearly as much.

  22. pitch a mix/not free on OpenOffice vs. MS Office for Education? · · Score: 1

    The summary I'm seeing is to migrate to OpenOffice, and yet supply some MSO licenses for back-compatibility.

  23. Re:Finally! on World's Smallest Linux Box Fits in RJ-45 Jack · · Score: 1

    I pictured it inside a male RJ-45 connector, which would make it rather difficult to pull out of the hub!

    Then my vision of the wireless version was only so much ether...

  24. Thank you! on More On Save Enterprise Donations · · Score: 1

    I might borrow this sometime wheen I need a quick round into the barrel

  25. Be careful of the solution on U.S. Agencies Earn D+ on Computer Security · · Score: 3, Interesting
    to get rid of government agencies.

    That's a knee-jerk reaction to stereotype faceless bureaucracies. To keep my soapbox short, I chalk up most of my negative experiences working within the gov't to the political side of human nature, and those inefficiencies are always going to be there. Until we fiure out how to breed perfect administrators.

    each of those agencies will need to hire specialized people and consultants

    A solution to this is being tried: NMCI (Navy Marine Corps Intranets) is one poor example of standardizing IT (and with it some security issues) across agencies. Unfortunately it's implementation is stifling to engineers, scientists and non-bureaucrats, and you really don't want to know how much the individual components are costing taxpayers. If NMCI is cutting edge for IT security, then security technology's got a long way to go to not throttle productivity! We'll take local IT mgmt over NMCI anytime.