Boba Rhett Posted February 15, 2007 Share Posted February 15, 2007 My particular forte is electricity so the first batch will be about, you guessed it, electricity! Static electricity shocks can be well over 10,000 volts. Jump distance information: (through your average air sample) mm gap - volts required .5______________2850 1_______________4350 2_______________7350 3______________10350 4______________13350 5______________16350 Want a stun gun in under five minutes? Step 0: Yes, step zero. For the love of God, discharge the flash on your camera. Step 1: Crack open a disposable camera, see the big black cylinder in there that looks like the one in this picture? It's a capacitor. Jumper two insulated wires (works best if you solder them but wrapping will work), one from each of its legs, and run them outside of the case. Then reassemble the body of the camera. Do NOT let the ends of the wires touch. Step 2: Press and hold the flash button until the flash is fully charged. Step 3: RELEASE THE FLASH CHARGE BUTTON. Step 4: Find something (non living) to shock the hell out of. NOTES: Despite my seemingly wanton disregard for human life in telling you to do this, I will tell you this - it is not a toy. It's strong enough to blow craters in quarters - it's strong enough to mess you up. The discharge will be along the line of 340 volts. If the flash button is not released the battery of the camera will immediately drain during your first tazering. The camera should be good for about 300 tazer discharges. While this won't be killing anyone or knocking them to the ground anytime soon, this can hurt VERY BADLY. NEVER use this on living things. Even if you're in a violent, mouth-frothing, fit of rage. *points at BongoBob* The subsequent hole I blew in my thumb from forgetting to discharge the flash on the first incarnation of the aforementioned stun gun hurt very badly. So, how much power did it take for me to loose feeling in my thumb for three days? Lets find out! My capacitor was charging to 343 volts. measuring the resistance across the distance it had to move across my skin gives us the figure of about 730,000 Ohms which then gives us a current of about 470uA. Voltage * Current gives us ~.161 Watts. BONUS: That's .000216 Horsepower! If you maintain an electric field through water somewhere on the order of 1 million volts per cubic meter, the water will freeze at room temperature. The average sized Tesla Coil, Click Me, produces 2.5 million volts at 20,000 Amps. A bolt of lightning can reach 300,000,000 volts at 30,000 Amps, Click Me. How fast is "electricity"? The speed of light, 186,000 miles per second you say? The shockwave" moves at that speed but the actual electron flow could easily be outpaced by a man in a walker going uphill. Electricity flows from positive to negative, right? Nope! Negative to positive. Electrons are negatively charged, which causes them to moves from negative to positive. The flow looks like it's going from positive to negative because of the "holes" left by the electrons as they move. (You're seeing the holes and it looks like they're moving positive to negative) What's one of the best electrical insulators? Pure water. Very very pure. The impurities in normal water are what causes it to be such a fantastically lethal conductor. (The electricity is given a path through the impurities) And that's all I can remember for now. Feel free to post comments, questions, to supply additional stuff, or just to call me a lying bastard or some other generic form of bastard. Link to comment Share on other sites More sharing options...
Ray Jones Posted February 15, 2007 Share Posted February 15, 2007 Hey, you've missed out to actually explain why things are like that. For instance, why is pure water one of the best insulators? Why is the direction of electric current flow from negative to positive? Link to comment Share on other sites More sharing options...
Boba Rhett Posted February 15, 2007 Author Share Posted February 15, 2007 What am I, your mother? fixed! Link to comment Share on other sites More sharing options...
Ray Jones Posted February 15, 2007 Share Posted February 15, 2007 Electrons have negative charge. To make them "flow" you need a difference of charge between the electrodes (potential difference). This potential (to produce electric current) is measured in Volt. Now, the cathode (-) has more electrons than the anode (+), and basically the electrons just want to go where it's less crowded than where the currently are, so they take a nice walk to a new land. This is then called current and measured in Ampere, the more electrons are walking at the same time the higher is the current. This theoretically happens until all electrons are equally "distributed" (Or in Rhett's example until his thumb turned into coal, next time the ear, eh). This can be compared to the water flowing out of a glass which is knocked over. BTW, it's not the voltage which is dangerous, but the current which flows. One can easily get killed with a voltage of 10V if there's enough current flow. Mother. Link to comment Share on other sites More sharing options...
jebbers Posted February 15, 2007 Share Posted February 15, 2007 Hey I just made a video with static electricity. It's another form of electricity. http://www.youtube.com/watch?v=2DwIoBHDSPM Link to comment Share on other sites More sharing options...
BongoBob Posted February 15, 2007 Share Posted February 15, 2007 Rhett you misspelled my name... I'LL F***IN KILL YOU!!! *foams at the mouth* Link to comment Share on other sites More sharing options...
Ray Jones Posted February 15, 2007 Share Posted February 15, 2007 It's not the water itself that's conducting electricity. It's all the crap that's in it that's conducting it.That crap is called "ions". Positive and negative charged ions to be more specific. Basically, throw some salt in to get it conductive. Link to comment Share on other sites More sharing options...
grievous797 Posted February 15, 2007 Share Posted February 15, 2007 Whoo hoo! Science class! Yes I am a nerd. Link to comment Share on other sites More sharing options...
Ray Jones Posted February 15, 2007 Share Posted February 15, 2007 So far you have yet to add knowledge. Link to comment Share on other sites More sharing options...
grievous797 Posted February 15, 2007 Share Posted February 15, 2007 Nah, I know alot of science. Link to comment Share on other sites More sharing options...
Ray Jones Posted February 15, 2007 Share Posted February 15, 2007 Go right ahead. What's a Triple point? Link to comment Share on other sites More sharing options...
IG-64 Posted February 15, 2007 Share Posted February 15, 2007 Nifty. Now tell me, when I get off of my trampoline and touch the metal bar on the edge (something I quickly stopped doing) why is the static charge so powerful? And could it become powerful enough to actually do any harm? Link to comment Share on other sites More sharing options...
rozo100 Posted February 15, 2007 Share Posted February 15, 2007 yeah, that trampoline zappyness HURTS! i just learned to jump off the trampoline, (i twisted my ankles soooo many times!) oh yeah and its definatly not fun to be rolling aroundon the trampoline an roll onto the springs when you are all zappy.(especeally if you are a boy....) Link to comment Share on other sites More sharing options...
grievous797 Posted February 15, 2007 Share Posted February 15, 2007 Go right ahead. What's a Triple point? A triple point is the temperature a object reaches the pressure-temperature plane. Link to comment Share on other sites More sharing options...
Boba Rhett Posted February 15, 2007 Author Share Posted February 15, 2007 Sorry for not elaborating, Ray. You did a wicked awesome job explaining them though! Link to comment Share on other sites More sharing options...
Ray Jones Posted February 15, 2007 Share Posted February 15, 2007 A triple point is the temperature a object reaches the pressure-temperature plane. This ain't enough, I'm afraid. What would a pressure-temperature plane be? Link to comment Share on other sites More sharing options...
grievous797 Posted February 15, 2007 Share Posted February 15, 2007 Pressure (P), Volume (V), and Temperature (T) are related for gases by the Ideal Gas Law. As temperature increases, the pressure and/or volume of the gas will increase. As temperature decreases, the pressure and/or volume of the gas will decrease. Most solids and liquids also expand as their temperature increases. That should explain it. Link to comment Share on other sites More sharing options...
Ray Jones Posted February 15, 2007 Share Posted February 15, 2007 Nope. That's rather displaying some relations between temperature/pressure/volume/dense of an element/substance, but does not contain info of what a triple point is. Although the triple point is directly related to pressure, temperature etc. Oh, and it does not explain what a temperature-pressure plane would be.. Another try? Link to comment Share on other sites More sharing options...
grievous797 Posted February 15, 2007 Share Posted February 15, 2007 Gimmie another question... If your not afraid Link to comment Share on other sites More sharing options...
jebbers Posted February 15, 2007 Share Posted February 15, 2007 Earth Science and Biology were my strong suits. I only passed Chemistry because our teacher never covered the posters on the walls. So the answers were always to my left and right. Link to comment Share on other sites More sharing options...
Ray Jones Posted February 15, 2007 Share Posted February 15, 2007 Okay, but first the triple point: the triple point of a substance is the "combination" of temperature and pressure which causes all three phases (solid, liquid, gas - hence triple point) of that substance to exist at the same time. Hm. If I drop a feather and a 1 ton block of iron in a room with a vacuum from a height of let's say 100 meters, which of both objects hits the ground at first? Link to comment Share on other sites More sharing options...
grievous797 Posted February 15, 2007 Share Posted February 15, 2007 both will hit at the same time Link to comment Share on other sites More sharing options...
Ray Jones Posted February 15, 2007 Share Posted February 15, 2007 Why? Link to comment Share on other sites More sharing options...
grievous797 Posted February 15, 2007 Share Posted February 15, 2007 Look I cant explain it I just know it. Link to comment Share on other sites More sharing options...
Samuel Dravis Posted February 15, 2007 Share Posted February 15, 2007 They'll hit at the same time (or very close anyway) because there's no air resistance and gravity attracts them both equally. Why? I've no idea why gravity works that way. Link to comment Share on other sites More sharing options...
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