• Triphase motors: how to differentiate "hot" & "cold" sides of wiring?

    Six wires come from a 3-ph motor, 2 for each widing, I have to build a star/delta switch. They have to be in the right order! Advices?
    Six wires come from a 3-ph motor, 2 for each widing, I have to build a star/delta switch. They have to be in the right order! Advices?
    3 answers · Engineering · 4 months ago
  • WHY do we have "classes" in evry b**y programs?

    I CANNOT find the advantage of having "classes" in every languages... I watched a lecture: "Don't use classes", where a multi MB code was, in the end, solved with a couple of lines (Without classes) I used classes ONCE, for creating a PDF. I had to define "sub-class" for what I needed. Mb of code for... show more
    I CANNOT find the advantage of having "classes" in every languages... I watched a lecture: "Don't use classes", where a multi MB code was, in the end, solved with a couple of lines (Without classes) I used classes ONCE, for creating a PDF. I had to define "sub-class" for what I needed. Mb of code for NOTHING! What's the point? I now find students working on classes, who are not able to understand the BASICS of programming! I am lost! You are including a class in your programming. It has 100 of methods, and you use ONLY ONE method!!!! What's the point????
    2 answers · Programming & Design · 6 months ago
  • How to save Jacaranda trees?

    Last year, I planted several jacaranda trees. Only one survived and grew to nearly 2m tall. The little frosts we had in february seem to have killed it: ony the trunks are still there. Anything I should do to give it a chance to survive the spring?
    Last year, I planted several jacaranda trees. Only one survived and grew to nearly 2m tall. The little frosts we had in february seem to have killed it: ony the trunks are still there. Anything I should do to give it a chance to survive the spring?
    3 answers · Garden & Landscape · 7 months ago
  • Remember the "cloks" problems? "at what time around 11:00 will the TWO hands will be on top of each other?"?

    I remember the problems. I can't remember how solved it. Something like interpolation? Give me a hint (or a solution. or a method)
    I remember the problems. I can't remember how solved it. Something like interpolation? Give me a hint (or a solution. or a method)
    4 answers · Mathematics · 7 months ago
  • Two daughters. 20 years apart. Living together. Hait me both on wrong basis. How to solve it?

    Two divorced marriages. Two girls. First divorce turned bad: was accused by "absence" (was in Iraq!). Restriction order to see my fisrt daughter. Had a second girl. Separation without porblems. The two girls MET and live together. Had a few contacts with the last one, but the first brainwashed the second. NO WAY I can get contact. Any... show more
    Two divorced marriages. Two girls. First divorce turned bad: was accused by "absence" (was in Iraq!). Restriction order to see my fisrt daughter. Had a second girl. Separation without porblems. The two girls MET and live together. Had a few contacts with the last one, but the first brainwashed the second. NO WAY I can get contact. Any idea of an approacch?
    2 answers · Family · 7 months ago
  • Body shuts down after every meal. What to do?

    I am 70yo, 60kg. After each meal (full: meat/fish, potatoes/fries, veggies), I fall asleep for at least 2 hours! I guess my "diet" is incorrect. Would a "6 meals a day" help, or is there another solution? (no medication, please)
    I am 70yo, 60kg. After each meal (full: meat/fish, potatoes/fries, veggies), I fall asleep for at least 2 hours! I guess my "diet" is incorrect. Would a "6 meals a day" help, or is there another solution? (no medication, please)
    5 answers · Diet & Fitness · 7 months ago
  • I have, "at random", sometimes during the day, a quick pop-up of DOS command line!?

    What could be the program, running in the background, would generate this? I killed many services, but it is still there!
    What could be the program, running in the background, would generate this? I killed many services, but it is still there!
    5 answers · Programming & Design · 7 months ago
  • Body "shut down" after meals?

    I don't dare much to take meals: after every meal, even just a sandwich, I fall asleep! A sandwich makes me sleep 1/2h. A full meal can take me out for 2-3 hours. Why?
    I don't dare much to take meals: after every meal, even just a sandwich, I fall asleep! A sandwich makes me sleep 1/2h. A full meal can take me out for 2-3 hours. Why?
    2 answers · Other - General Health Care · 8 months ago
  • Dogs strange behaviour: singing on TV intro!?

    I think I have strange dogs! When I watch TV, and for three or four series, especially CSI MIAMI, they all three start singing when the series shows the intro! (as well as the credits) (And it is LOUD!). I think the intro has some sounds beyond our hearing abilities. I do not have a lab anymore, nor a scope nor an analyser! Can someone analyse... show more
    I think I have strange dogs! When I watch TV, and for three or four series, especially CSI MIAMI, they all three start singing when the series shows the intro! (as well as the credits) (And it is LOUD!). I think the intro has some sounds beyond our hearing abilities. I do not have a lab anymore, nor a scope nor an analyser! Can someone analyse the sound track to find WHAT could be "unheard" in these tracks?
    1 answer · Drama · 8 months ago
  • Dogs strange behaviour: singing on TV intro!?

    I think I have strange dogs! When I watch TV, and for three or four series, especially CSI MIAMI, they all three start singing when the series shows the intro! (as well as the credits) (And it is LOUD!). I think the intro has some sounds beyond our hearing abilities. I do not have a lab anymore, nor a scope nor an analyser! Can someone analyse the... show more
    I think I have strange dogs! When I watch TV, and for three or four series, especially CSI MIAMI, they all three start singing when the series shows the intro! (as well as the credits) (And it is LOUD!). I think the intro has some sounds beyond our hearing abilities. I do not have a lab anymore, nor a scope nor an analyser! Can someone analyse the sound track to find WHAT could be "unheard" in these tracks?
    2 answers · Dogs · 8 months ago
  • Dogs strange behaviour! Can-you explain?

    Three dogs. Secluded area in countryside. One road one side, leading to some villas further away, and ONE track going to my neighbour. Little daily traffic (20-30 cars a day). My dogs do not pay attention to any cars, EXCEPT that they spring up when hearing a car... going to my neighbour!!! It is NOT that they "recognise" my... show more
    Three dogs. Secluded area in countryside. One road one side, leading to some villas further away, and ONE track going to my neighbour. Little daily traffic (20-30 cars a day). My dogs do not pay attention to any cars, EXCEPT that they spring up when hearing a car... going to my neighbour!!! It is NOT that they "recognise" my neighbour's car: they do the same for ANY car going to my neighbour. How is it possible?
    5 answers · Dogs · 8 months ago
  • Mercedes 203E W124, 1998 engine not holding?

    Appears to start, reaches 1500-2000 RPM, then, after 3-5 sec, stops. Even holding the starter active will not prevent motor to stop. 4th time in shop, SAME problem! Always told "Fuel pump", "Fuel pump relay", but I can't find either in the car! Help!
    Appears to start, reaches 1500-2000 RPM, then, after 3-5 sec, stops. Even holding the starter active will not prevent motor to stop. 4th time in shop, SAME problem! Always told "Fuel pump", "Fuel pump relay", but I can't find either in the car! Help!
    5 answers · Maintenance & Repairs · 8 months ago
  • How to de-install ubuntu?

    Tired of some windows, I installed ubuntu before checking my options... My main programs are autocad, 3DS max and other important. Unfortunately Autodesk does NOT provide versions for any other OS but Windows! I do not need ubuntu... How to remove it safely?
    Tired of some windows, I installed ubuntu before checking my options... My main programs are autocad, 3DS max and other important. Unfortunately Autodesk does NOT provide versions for any other OS but Windows! I do not need ubuntu... How to remove it safely?
    3 answers · Software · 8 months ago
  • Mercedes engine wierd start-up (when it starts!)?

    When I start the engine, it goes to 1200 rpm, then starts oscillating from 1000 rpm to 300 rpm during several seconds, then simply cuts off. A problem with the "automatic choke", of the carburator? Car went to three mechanics, and NO-ONE found a definitive solution... Help!
    When I start the engine, it goes to 1200 rpm, then starts oscillating from 1000 rpm to 300 rpm during several seconds, then simply cuts off. A problem with the "automatic choke", of the carburator? Car went to three mechanics, and NO-ONE found a definitive solution... Help!
    5 answers · Maintenance & Repairs · 8 months ago
  • Sometimes a window of "DOS" type (black bkg, white txt) appears for about 1 sec. WHERE does it come from?

    I assume that is due to a "service" running in the background.
    I assume that is due to a "service" running in the background.
    1 answer · Security · 8 months ago
  • How to suspend execution until a response is made through AJAX?

    - Javascript gets the user window width and make an AJAX call to php - Php gets the width and save the variable in globals, and returns that value in a <div> How to WAIT for the AJAX response available in the <div> before continuing, so the global php value is set. (How to read the value in the <div> in php?)
    - Javascript gets the user window width and make an AJAX call to php - Php gets the width and save the variable in globals, and returns that value in a <div> How to WAIT for the AJAX response available in the <div> before continuing, so the global php value is set. (How to read the value in the <div> in php?)
    1 answer · Programming & Design · 9 months ago