Slashdot Mirror


User: Billy+the+Mountain

Billy+the+Mountain's activity in the archive.

Stories
0
Comments
548
First seen
Last seen
Profile
(view on slashdot.org)

Comments · 548

  1. Re:20% is extremely low on Solar Windows Could Help Power Buildings · · Score: 1

    Better read chapter 2 of your "Cliff notes"

  2. Re:20% is extremely low on Solar Windows Could Help Power Buildings · · Score: 1, Insightful

    One m^2 of direct sunlight provides ~1000 watts, but due to the way things are, even the best solar panels can't get you more than, say 300 watts from that original 1000. Limits due to Carnot cycle apply.

  3. Re:multirotor aircraft on MIT and Samsung Researching Solid-State Batteries · · Score: 1

    It is referred to as energy density. 20-30% improvement IIRC.

  4. Re:If Earth Not a Globe, how do they stay up? on Samsung Researchers Propose 4,600 Micro-Satellite Space Network · · Score: 1

    Well, for one thing, I've seen the International Space Station (ISS) at least 20 times and also the Hubble Space Telescope an equal number of times. The majority of satellites travel from West to East. Some travel North to South or South to North in equal measure.

    I use software that predicts their sightings. The software even accurately predicts when the satellite will turn dark due to the sun setting on it.

    1. So if the earth is flat why do we not observe the ISS traveling East to West just as frequently as we observe it traveling West to East?
    2. When it's dark, but still just after sunset, why can I sometimes observe a satellite turn dark in the Eastern half of the sky? What would explain that if the explanation is not "because the Earth is spherical"?

  5. These most foremost codec experts on Cisco Developing Royalty Free Video Codec: Thor · · Score: 1

    Are they better than the merely foremost codec experts?

  6. Re:Godzilla? on Japanese Scientists Fire the Most Powerful Laser On the Planet · · Score: 1

    Thanks, I'll keep that on my R.A.D.A.R.

  7. Re:Why does anyone care? on Japanese Scientists Fire the Most Powerful Laser On the Planet · · Score: 1

    Well yeah, but it will probably make your arm radioactive. Plasma Acceleration

  8. Re:How do they fare in colder climates? on Are We Reaching the Electric Car Tipping Point? · · Score: 0

    That's right because P = VT doesn't work when T = 0. That's especially true if your unit is in Celsius. It will work at a lower temperature if it's in Fahrenheit though...

  9. Re:Slashdot dream team posting on Does Elon Musk's Hyperloop Make More Sense On Mars? · · Score: 1

    You forgot mention the other missing part:

    * funded with Bitcoins

  10. Suddenly it all makes sense on Does Elon Musk's Hyperloop Make More Sense On Mars? · · Score: 1

    The hyperloop is the next new national travel phenomenon. Here's why:

    1. Hyperloop uses electricty and can work fine without fossil fuels.
    2. Because hyperloop cars can be made an arbitrary size, security demands are much less of an issue for a vehicle carrying, say, 10 people.
    3. Because the cars travel in a tube as the technology advances they can travel at artbitrary speeds like 2k, 3k, 4k? M.P.H. With no noise impact.

    So what if it costs 6 billion per route? The cars will probably be way cheaper to make than airplanes.

  11. Re:looks like they found... on Mysterious "Cold Spot": Fingerprint of Largest Structure In the Universe? · · Score: 0

    Nah...check dust on lens.

    Doh!

  12. Hey Mapquest! on Google Sunsetting Old Version of Google Maps · · Score: 4, Informative

    "Where you been all these years? Looking good old friend!"

  13. Re:used devastatingly already on Windows Remains Vulnerable To Serious 18-Year-Old SMB Security Flaw · · Score: 1

    Citation needed

  14. Re:is it an engine or a display model? on Researchers Create World's First 3D-Printed Jet Engines · · Score: 1

    Yeah, a printed turbine could run in a de-rated or less efficient engine, but the turbine wheel is THE most critical part of a good engine.

  15. Re:I'm not saying it was aliens... on CIA on UFO Sightings: 'It Was Us' · · Score: 1

    Maybe the aliens were heading up to Mt. Rainier to do some UFO skiing.

  16. Re:Why is no one else calling BS? on NASA Study Proposes Airships, Cloud Cities For Venus Exploration · · Score: 1

    +1 Pretty much what I would have said.

  17. Re:Well, there more about marketing until they are on Can the Sun Realistically Power Datacenters? · · Score: 1

    That's right. Since when is being able to generate many Gigawatt hours of electricity without using a drop of fuel "merely marketing"? It's that kind of "marketing" you can take directly to the bank.

  18. Ho hum... on MIT Study Outlines a 'Perfect' Solar Cell · · Score: 1

    This technology is not suitable for the majority of the U.S. because it relies on concentrated solar, i.e. mirrors and if the sun is behind the clouds, then this technology isn't working for you.

  19. Re:Tesla's in Nevada? on Tesla Plans To Power Its Gigafactory With Renewables Alone · · Score: 1

    Yeah, as long as Lake Mead has water, which should be at least a few more years, give or take.

  20. Re:Dragons on Researchers Harness E. Coli To Produce Propane · · Score: 1

    Yeah, you need that steel tooth and that flint implant on the tip of your tongue plus a little practice.

  21. Re:won't work on Amazon Seeks US Exemption To Test Delivery Drones · · Score: 3, Insightful

    Yeah! An' an' a free three year stay in th' crowbar ho-tel!

  22. Re:Too late. Fission 80,000 times safer than hydro on Blueprints For Taming the Climate Crisis · · Score: 2

    Yes fusion is the energy of tomorrow. And the best fusion reactor we have is called the sun. And we can begin harnessing it whenever we want.

  23. Restoring Net Neutrality on Google Fiber: No Charge For Peering, No Fast Lanes · · Score: 1

    All it takes to restore net neutrality is enough people to boycott those businesses that seek to compromise it.

  24. Re:Russia to Lithuania? on The Lithuanian Mob Was Smuggling Cigarettes Into Russia With a Drone · · Score: 1

    Maybe they WERE smuggling cigarettes into Russia, realized, OMFG! they were losing money like mad and NOW are smuggling cigarettes from Russia to Lithuania.

  25. Re:...What? on Future of Cars: Hydrogen Fuel Cells, Or Electric? · · Score: 1

    Except that most hydrogen comes from reforming of natural gas which isn't nearly as bad a coal. (still results in CO2) But otherwise you are correct.