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User: Cedric+Tsui

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Comments · 282

  1. Re:Pay for submission on Google Puts the Brakes On Saving the World · · Score: 1

    Absolutely. Even in relatively well off countries like Ghana and South Africa, there simply isn't a 'credit' system. That means no credit cards.

  2. Re:Power gain or loss? on How to Charge Your Cellphone Using Wasted Heat · · Score: 1

    Devices like these are usually silicon wafers.
    They will weigh less than your alternator.

    And you'll only need one. Probably connected to your coolant line before the radiator to get it good and hot.

  3. Re:Is "Waste" Heat Really Free Energy? on How to Charge Your Cellphone Using Wasted Heat · · Score: 1

    Yes.
    There's a post above about the carnot cycle which is theoretically the most efficient engine for turning heat into useful energy. The carnot cycle efficiency is equal to 1-Tc/Th

    Basically, the hotter your furnace and the colder your exhaust, the more efficient your system is. So if you have some powerplant's waste heat, it's not useful to you unless you have some reservoir of cold to dump that heat into while running your cycle. Obviously, it is more efficient to apply that cold reservoir to the original powerplant rather than building a separate cycle.

    However. With a car, your exhaust temperature is almost completely controlled by the volume ratio of the engine cylinders. So the excess heat, and the difference in the temperature of the coolant and the air around the car is free for the taking. Just like the regenerative brakes used in hybrid cars harvest free energy.

  4. Re:laptop heat? can that be used to charge it self on How to Charge Your Cellphone Using Wasted Heat · · Score: 1

    It's also worth noting that these heat-to-electricity units impede the flow of heat. Just like putting a dam with a turbine in it makes the water levels upstream go up, a peltier style generator would increase your laptop's temperature.

    Hopefully, the generator will provide the extra energy needed to power all the extra fans you'll need.

  5. Re:This is why CC zero-liability is a good thing. on Largest Data Breach Disclosed During Inauguration · · Score: 1

    The merchants don't pay. Well, not exactly. Merchants are charged a certain percentage of each transaction. I believe it is 4%. Included in this is fraud insurance.

    When a stolen credit card is used, the amount lost is paid by the insurance.

    So, it's the merchants who pay. But it comes out of their regular expenses, which gets charged to the consumer.

  6. Re:Finally! on TrueMotion Game Controller a Step Up From Wii Remote · · Score: 1

    That's hardly the point!
    The real issue will be when I FAIL to duck the enemy fire because the coffee table was in my way.

  7. Re:oh wait.... on Stealing From Banks One Cent at a Time · · Score: 1

    Wow. That's a whole new meaning to spite.

    Did he round up or down? Or did he write cheques for fractions of cents?

    I really need to do this sometime.

  8. Re:"Almost certain"??? on Polar Robots to Explore the Arctic · · Score: 1

    Hey cool.
    You're the first person I've known to actually explain the sea ice growth idea.

    Except. Arg... Your third link doesn't have units on it's figures. I'm guessing the colours indicate temperature anomaly from mean conditions.
    Unless red means cold, it looks as if the polar regions would actually be exposed to warmer temperatures resulting in more melt while the equatorial region is a little bit colder than normal.

  9. Re:Ice caps Melting ? Try again on Polar Robots to Explore the Arctic · · Score: 1

    What? Admitting that I don't have enough evidence to form a rock solid conclusion?

    Ah who am I kidding. You're right. I am a creationist down at heart.

    I beLeave! That the flying spaghetti monster... REACHED out brothers. He reached out his noodly appendage for YOU and for YOU and for YOU.

  10. Re:Ice caps Melting ? Try again on Polar Robots to Explore the Arctic · · Score: 1

    Aww. You beat me to the post.
    Though. I'd say that's a crappy graph. It shows the data.

    This graph shows the trend. It subtracts the total area of sea ice in each season against the average in that season for the last thirty years, and then plots that on a truncated scale.

    It clearly shows that the recent blip is (1) a blip and (2) not that big on the scale of things.

  11. Re:Ice caps Melting ? Try again on Polar Robots to Explore the Arctic · · Score: 1

    I thought I'd check out your link.
    I believe that the sea ice is melting, but agree it's probably grown this year from the crazy cold winter (for which I've yet to hear of a cause).

    But I figure. I could be wrong. Maybe the website does have credible information about arctic ice growth.

    But it doesn't. The webpage is devoted to showing evidence of arctic ice recession and melt. Specifically, the melting of multi-year sea ice. It has a good number of charts and graphs that clearly show a general trend of shrinking ice coverage.

    So... I'm confused. Did you pick the wrong site? Or did you not read it carefully? The site lets the evidence speak for itself, and has very little opinion anywhere.

  12. Re:Robots, What Can't They Do? on Polar Robots to Explore the Arctic · · Score: 2, Interesting

    Did you know that the London underground trains are designed to run autonomously? They don't. Because the union had an agreement that all the trains would be driven by them.

    Yes, 'robots' are taking over our jobs, and yes there is still quite the resistance.
    Not just from the people with the jobs either. A documentary on military UAVs (don't remember the name) suggested that sometime soon, commercial airplanes would fly completely automatically with one bored pilot onboard to make the passengers happy.

  13. Re:My spam rules-- on Understanding How CAPTCHA Is Broken · · Score: 2, Insightful

    Maybe that's the point. s/he doesn't want to have to hide his e-mail address from the world.

  14. Re:GPS outage on Lockheed Martin Awarded GPS III · · Score: 1

    Shouldn't you don your tinfoil hat when they turn ON the gps in a targeted small geographic area?

    OMGOSH! The government stopped reading my brain! *hat*

  15. Re:What's the point? on Lockheed Martin Awarded GPS III · · Score: 1

    Good God! I pray that you are wrong.

    Or that you'll live to be ten thousand, and aliens will be involved.

  16. Re:I've got a secret for them on Honeywell & Airbus To Turn Algae Into Jet Fuel · · Score: 1

    You need an inert conductor or your electrode will be eroded away when it reacts with the hydrogen or oxygen ions.

    I haven't seen the experiment done with anything but platinum.

  17. Re:I've got a secret for them on Honeywell & Airbus To Turn Algae Into Jet Fuel · · Score: 1

    Right. I misspoke.

  18. Re:Donate on What To Do With Old Laptops? · · Score: 1

    So. If you care to disagree with me.

    I currently have a sample space of 1. The people of Zambia. Can you do better?

  19. Re:Donate on What To Do With Old Laptops? · · Score: 1

    My sister works in development.

    Ironically, most people in 3rd world countries who want computers want new ones. Just like us, they want the latest and the greatest.

    She said every poor farmer has the newest coolest and best cell phone. Far more expensive than hers. They cost the farmers a year or two of income, but it's their status symbol.

  20. Re:I've got a secret for them on Honeywell & Airbus To Turn Algae Into Jet Fuel · · Score: 5, Insightful

    Sorry man. You really don't understand the carbon cycle.

    You should know that the majority of organic material (like leaves or algae) and the carbon they contain does not get trapped away from the atmosphere. For the most part, dead organic material slowly decays releasing that carbon back into CO2.

    Using algae as a source of fuel can decrease the amount of carbon we are pulling out of deep sequestered sources. It would decrease global CO2 concentration as the source of carbon is part of a closed loop. We'll be pulling carbon out of the air when we grow more algae.

    On another note. Electrolysis is not easy. Right now, electrolysis terribly inefficient and needs platinum electrodes. There's a reason that hydrogen today is produced by cracking oil and not extracted from water.

  21. Math is fun. on 80 Gbps Deep Packet Inspection Hardware Announced · · Score: 4, Insightful

    $800,000/5 million subscribers = $0.16 per subscriber.

    Expect to see the surcharge in your next bill!!!

  22. Re:In other words... on RIAA Says No Mystery In Rash of College Complaints · · Score: 1

    "This analogy has gotten way out of control."

    You mean this analogy has become AWESOME!

  23. Re:Why do people send spam to me? (seriously) on 100 Email Bouncebacks - Welcome to Backscattering · · Score: 1

    Good point. I guess it's cheaper to broadcast spam than it is to direct it.
    And I guess all they have to do is send you a bottle with some Tylenol in it and you won't even be able to get the credit card to reverse the payment.

  24. Re:Visine stocks soar from Google targeted adds on Gaze Gaming Tech Promises Faster Eye-Controlled Interaction · · Score: 1

    d'oh. I meant 'ads' not 'adds'

    Me fail English? That's unpossible!

  25. Visine stocks soar from Google targeted adds on Gaze Gaming Tech Promises Faster Eye-Controlled Interaction · · Score: 1

    *Excessive cursor movement detected. Add selected*

    Sore eyes from too much Gaze Gaming cursor control? Buy Visine!