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User: tetranitrate

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  1. Re:Mythbusters on Archimedes Death Ray · · Score: 1

    The mirrors wouldn't have to be aligned in a parabola path. Although the parabola is the shape that focuses all incoming parallel rays to one single point, and it would indeed have to be a parabola if they were using one large mirror, as long as the incoming rays are reflected back onto the ship it really doesn't matter how they are arranged (semi-circular, linearly, parabolicly).

    What would be best is to arrange the mirrors so most of them aimed the rays perpendicular to the ships hull , so a 3D setup (probably paraboloid) would be best.

    I suspect it would work better if each mirror was somewhat parabolic (or an odd shape depending on the angle to the incoming rays) to focus the light rays to the smallest point possible--something that would be possible with silver or copper mirrors, but not easily with glass.

  2. Re:Good question. on What is Mainframe Culture? · · Score: 1

    I would rather read a badly spelled insightful comment than an asenine correctly spelled one.

    So which category does your post fall under?

  3. Real life example on Online Shoppers Aren't Impulsive · · Score: 1

    Here are some examples of my recent and future online purchases. Digital SLR camera - About 80 hours over 9 months of actual researching brands/competitors/prices etc before deciding on a Canon camera and lenses. I have probably 10+ hours invested in researching another wide angle and long lens. Flashlight - still looking at Surefire/Streamlight, probably have about 20 hours over 3 weeks trying to limit down the options. Knife - Looking at a Benchmade, have narrowed it down to a few models, probably have about 10 hours over 3 weeks invested. I'm probably not the average consumer and definitely not an impulse buyer. I've been addicted to forums for reviews and buyers opinions -- buying something you are going to have for 10+ years shouldn't be done on a whim.

  4. Enough already on Microsoft Demands Removal Of Longhorn Images · · Score: 1

    Why does Microsoft keep making icons larger and larger. I don't need an icon the size of a matchbook to tell me "hey this here represents a picture you can click on to access its contents."

    One of the first things to do when setting up windows is to turn on detail listings as the default.

  5. Availability of materials on Experimental Transistor Breaks 600 Gigahertz · · Score: 2, Interesting

    Silicon is widely available for current transistors. Are indium phosphide and indium gallium arsenide just as available, or are they the doping materials.

    Will material prices be the main determining cost of chips made from these products?

    I didn't RTFA -- it was slashdotted.

  6. Who needs askjeeves? on Google Delivering Factual Answers · · Score: 1

    I long time ago I tried askjeeves but found it doesn't actually answer questions. It now appears google makes another site fairly obsolete. Here is an example. I asked what is a minimum spanning tree to both:

    Google: Given a connected, undirected graph, a spanning tree of that graph is a subgraph which is a tree and connects all the vertices together. A single graph can have many different spanning trees. We can also assign a weight to each edge, which is a number representing how unfavorable it is, and use this to assign a weight to a spanning tree by computing the sum of the weights of the edges in that spanning tree. A minimum spanning tree or minimum weight spanning tree is then a spanning tree with weig

    AskJeeves (first result): Minimum spanning trees How to find minimum spanning tree? The stupid method is to list all spanning trees, and find minimum of list.

    Nice job jeeves, that one I could have figured out myself without searching anything.

  7. Re:What it really does. on Firefox Hacks · · Score: 3, Informative

    I have the following config option set, and didn't get the popups. I read that firefox has had flash blocking functionality in for some time, but didn't enable it due to it possibly breaking things.

    privacy.popups.disable_from_plugins = 2

  8. Re:In theory maybe on Free SSL Certificate Project · · Score: 2, Funny

    Much cheaper ones are available from people like GoDaddy.

    Thanks for the mental image.

  9. Re:Actually... on Building Applications with the Linux Standard Base · · Score: 1

    but its pronounced pah-sux.

  10. Re:Wardriving is illegal? on Hacker Sentenced To Longest US Sentence Yet · · Score: 1

    It seems to me if you are going to broadcast information, via public airwaves through a wireless router, then that data is public information. Maybe even sending data to that same base station is legal (as those devices must accept "interference", even that which may be deemed harmful. The problem is when you actually start breaking into corporate networks, or accessing resources on private property. So I don't see wardriving as being inherently illegal, it depends on how you go about it and how far you go that determines what other laws you break (in this case probably related to cracking and credit card fraud).

  11. Re:Many eclipsi on Venus/Jupiter Conjunction Tomorrow · · Score: 3, Informative

    All in all, a good night, but I think that the eclipse was visible over quite a large area.

    Lunar eclipses are visible to the whole world, at least those those that can see the moon between the times of umbral contacts, which is usually more than half the world.

    During a lunar eclipse everyone sees the same thing (well almost due to parallax), since it isn't the Earth being eclipsed, but the moon. During a solar eclipse the Earth is being eclipsed, and so we see it differently depending on where we are on Earth. If we were on the moon, solar eclipses would look the same to everyone.

  12. The opposite -- well, not really on Geeks Playing Poker? · · Score: 0

    I think since I am more logical/analytical then the average persom I am less likely to actually partake in games of chance. Maybe if I actually applied myself at poker I could do fairly well, but it really bores me.

    Gambling is a tax on people bad at math.

  13. Ouch... on Frame Dragging by Earth Reconfirmed · · Score: 4, Funny

    After 11 years of watching the movements of two Earth-orbiting satellites, researchers found each is dragged by about 6 feet (2 meters) every year because the very fabric of space is twisted

    The researchers say their result is 99 percent of the predicted drag, with an error of up to 10 percent


    I think my head just exploded

  14. Re:Or was that Steff Murky? on What's The Linux Kernel Worth? · · Score: 1, Interesting

    Sure it wasn't Stef Murkey?

    Sure that wasn't Stef Murky

    P.S. Same link as parent.

  15. You were wondering anyway on Spyware Fines OKed By House · · Score: -1, Redundant

    Rep. Ron Paul, R-Texas, who often votes against spending measures, cast the lone dissenting vote Tuesday.

  16. Re:dangerous on Smart Cars Tell You About Road Signs · · Score: 2, Informative

    What happens when we all have road range when we hear "Warning. Warning. You are traveling at 63mph in a 60mph zone" over and over again

    A speakerectomy will work just as good then as it does now.