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why is the standard for sch 40 steel pipe 21' long? Why not an even 20' like pvc pipe?

why is the standard for sch 40 steel pipe 21' long? Why not an even 20' like pvc pipe?

Answer:

Great Question, and I am glad that you asked! We've all had it. Especially during the cold months when the heaters are running and the air is really dry. You touch a metal door knob and ZAP! You get a static shock. That kind of static electricity could ruin some of the chips on your new memory stick, or even on your mother board. I repair my neighbors' and family's PCs as a hobby. I have replaced dozens of Mother Boards and hundreds of memory sticks. And I have NEVER lost one to the static monster. You don't have to wear a static strap or gloves, although it is not a bad idea. Number one: Take off your shoes and socks. Your bare feet won't generate static electricity. Number 2: Pick up the screwdriver you are going to use (any screwdriver will do. Just DO NOT use a magnetic screwdriver, you know, one of those that will hold the screw for you magnetically) and, while holding the screwdriver and touching the metalic area, touch anywhere inside the PC's case. Any un-painted surface will do. This will discharge any static electricity that you may have stored up in your body. Then, install the MoBo, yes, using your swiss Swiss Army knife. It would be best if you could do this in a non-carpeted room, like on a vinyl or ceramic floor, but it isn't absolutely necessary. Good luck! I hope this helps! Troy Downing
im bored. a million) might you eat a computer virus? no 2) might you bungee bounce? i in my view choose for to 3) might you dangle drift? sure 4) might you kill somebody? doubt it. 5) might you kiss somebody of the comparable intercourse? i dunno 6) might you parachute from a airplane? sure 7) might you walk on warm coals? relies upon how warm they're 8) might you be a vegitarian? sure 9) might you instant message a stranger? is this only like some crappy reality or dare quiz ? 10) might you sing karaoke? no in no way ever 11) might you run a crimson easy? particularly everyone does 12) might you shoplift? no thats stupid 13) might you dye your hair blue? advantageous 14) might you be on survivor? no 15) might you placed on makeup in public? oh the horror sixteen) might you no longer placed on makeup in public? sure 17) might you cheat on a attempt? possibly 18) might you're making somebody cry? no longer with the help of ttrying properly i lied my little brother 19) might you date somebody extra desirable than 10 years older than you? Gerard way :) and mcr
Well it depends on her personality. Since I am 15 years old. Some of the things I would enjoy would be: clothes, music from my favorite artists, books from my favored authors, or something from the heart, (a painting, something creative). I hope this helps. :)

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