Slashdot Mirror


User: DrHeasley

DrHeasley's activity in the archive.

Stories
0
Comments
10
First seen
Last seen
Profile
(view on slashdot.org)

Comments · 10

  1. It's just an autogyro on Hybrid RotorWing Design Transitions From Fixed To Rotary Wing Mid-Flight · · Score: 1
    The working prototype is a helicopter with an added prop on the front.

    This is not a new concept. Autogyros are very old tech.

  2. Re:cool on Swedish Engineer's RC Plane Gets a Balloon Lift To Space · · Score: 1

    At current, the only license required is from the FCC, an amateur radio technician's license for the 2W transmitter.

    However, due to media hype over "drones," there's a lot of legislation in process that would ban anybody flying any RC aircraft that is capable of capturing any kind of images.

    The Academy of Model Aeronautics (http://www.modelaircraft.org) is working strenuously with state and federal government organizations to bring some reason into the situation.

  3. Re:Not a replacement yet on Big Advance In Hydrogen Production Could Change Alternative Energy Landscape · · Score: 1

    Moving energy around through ships and pipelines would be akin to the internet running through a "vast network of little tubes." 1. The existing electrical grid has sufficient capacity to power both houses and vehicles for the foreseeable future. As the inevitable transfer from fossil fuels to electricity happens, adding more capacity is well within the capability of existing technology. 2. Edison and Tesla argued strenuously over the advantages and disadvantages of AC vs DC for power transmission. Edison opted for DC, but lost handily because AC can be stepped up and down with transformers and is much easier to handle than DC. Resistance loss happens regardless of DC vs AC. Both are subject to Ohm's law, E=IR. Voltage equals Current times Resistance, so the voltage drop across any conductor is equal to the current traveling through it times its resistance. Energy loss in conductors is far less than the energy required to transport a similar amount using trucks, pipelines, or ships, and even that is improving as we develop better and better conductors, and eventually, superconductors which will have no loss at all.

  4. Re:Not a replacement yet on Big Advance In Hydrogen Production Could Change Alternative Energy Landscape · · Score: 3, Informative

    Moving energy around in trucks is wasteful and slow compared to moving it through the already established electrical grid. The only reasons we stay with liquid fuels are that battery and charging technology doesn't yet supply the needed mileage range and quick recharge rate. And to keep oil companies and gas stations in business.

  5. All aircraft currently run on solar energy. on Ask Slashdot: What Stands In the Way of a Truly Solar-Powered Airliner? · · Score: 1

    All of the energy stored in hydrocarbon fuels is originally solar. In that sense, airliners are currently powered by solar energy.

  6. Avoid the ripoffs, buy them directly on Why Can't Industry Design an Affordable Hearing Aid? · · Score: 2

    from the Chinese manufacturers. Prices start at around ten bux. For 825 listings of various 'in ear' aring aids, run a search at aliexpress.com. I would definitely try a couple of these devices before I'd shell out thousands of bux to Philips or Siemens for a device that was probably made in China anyway.

  7. Innocent until proven guilty on Ask Slashdot: How Do I Scrub Pirated Music From My Collection? · · Score: 1

    IANAL, but: To convict you, the RIAA must prove that the files you have violate copyright, you don't have to prove that they are legal - that would be Napoleonic law, which is unconstitutional, although the current supreme court might disagree. The RIAA would face the same difficulties being discussed here. If a way cannot be found to prove your music is legal, I doubt that they'd be able to find a way to prove that it's illegal.

  8. Oral silicone not sufficiently toxic on Snake Bites Model In Breast and Dies of Poisoning · · Score: 1

    You could probably drink it. Outside of some diarrhea, it'll go right through you. Best guess is that they beat it do death in revenge and used the silicone story as a coverup.

  9. Urey-Miller on Transition Metal Catalysts Could Be Key To Origin of Life · · Score: 1

    'nuff said.

  10. Thar's gold in them there asteroids! on The Best Near-Term Future of Space Exploration? · · Score: 1

    As the remains of planetary building blocks, the asteroids may contain an incredible wealth of minerals, easily accessible compared to other planetary bodies, and easily evaluated. Picture gold nuggets in space.