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Otra pendejada

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  • #1

    Otra pendejada

    En otro foro que deje abandonado gracias a ustedes vi esto y me dio risa.


    Am I too Dumb for this.
    Hi

    I am probably not thinking very straight right now, and what I type may seem jumbled. If it does, please stay with me.

    I didn't have a very good time at school. I had a death in the family when I was about 6, and suffered a partial amnesia on my life upto a certain point. (some sort of ptsd). The reason I am telling this is that any base for my education was lost. All basic maths and english were forgotton. By the time I got to secondary school I was already well behind the curve. As a double whammy I also was regularly assaulted at school (weak kid, dealing with problems) and had to leave school at 15.

    Fast forward ten years. I have always been scared of maths, and I don't do too well at it. (It's my worst subject)

    So I have managed to struggle by with no maths education, but now I think I have found what I want to do - Electronics engineering. What I want to ask is do I have a chance? I'm old, poor at maths and scared of it. I'm not a dummy and am quite bright, but I just want to ask whether or not my goal is possible or I should forget it and do something else?

    Thanks for listening.


    Si Arch lo tradujera estaria mejor pero a ella solo los juegecitos la fascinan.
    La cosa es qeu otros usuarios le respondieron que si Michael Faraday no era bueno en Math que no se preocupe. yo respondi que es obio que el tipo esta bromeando o esta haciendo un experimento sicologico.
    Para que vean que hay gente mucho mas pendeja que yo. (lo digo por el que inicio el pots y por los que le dijeron que no se preocupara) jajajajajajajaja.
    Tags: pendejada
  • #2
    Un chingamadral de cobardes y de pendejos miren este y mi respuesta de hoy estube espabilando a unos de www.allaboutcircuits.com
    Quote:
    Originally Posted by Unregistered
    After 20+ years in the industry and teaching in the industry, here is my 2 cents on electric shock.

    0.001A - tingling sensation is felt
    0.01A - Involuntary muscle movment/contraction occurs
    0.1A across the heart - fatal with no medical help

    Current not woltage is the killer. In the U.S. more people are are killed by 120Vac than any other voltage.

    A technician decided he wanted to know the resistance of his blood, so he poked a probe into the finger of one hand (breaking the skin), and then the a finger on his other hand. If you are familar with how an ohmmeter works... well, he recieved a lethal shock through his heart.

    --James

    Posted by theamber
    Bed time stories...
    I see it this way; the human boby is conductive. Dry skin is not a good conductor this serves as a shield enough voltage will break the skin barrier.
    I haven been shoked docens of times up to 840 VDC that made a hole through my skin and flesh. Also 220 and 120 VAC many times. I am pretty sure you guys had too.
    For the chickens out there... I want to see DEATHS proves of people WORKING on electronic equipment no bedtimes stories.

    Now the real dangers come from high frequencies.
    Inside the human body there are ellectric currents. I have seen also claims that human frequencies vary from a low number of Hz to around 300Hz.
    An     EEG shows the electrical activity of neurons in the brain.
    An EKG show what the heart is doing. Naturally a real damage depends on frequency and intesity :
    High frequency and intensity may pass through (e.g. X rays).
    Higher frequency 20kH to GHz (radio frequencies) have less and less biological effect (expect from heating if intensity is very high (such as in the microwave oven).
    Very High frequencies (UV, X ray, gamma rays) may be dangerous.
    It has to have certain minimal energy (frequency) to be able to break a chemical bond of the biomolecules.
    High power RF burns those can cause real long term internal damage.
    So using high frequency trasmitters may be worse than working on electronic equipment that includes CRTs TVs.
    The guy that died with the meter probably...Then he was 80 years old and had a pacemaker.




    __________________
    Minds are like parachutes. They only function when they are open. Sir James Dewar, Scientist (1877-1925).
    Imagination is more important than knowledge. Albert Einstein.
    I haven't failed, I've found 10,000 ways that don't work. Thomas Edison (1847-1931).
    Do just once what others say you can't do, and you will never pay attention to their limitations again. James R. Cook.

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