Yahoo Answers is shutting down on May 4th, 2021 (Eastern Time) and beginning April 20th, 2021 (Eastern Time) the Yahoo Answers website will be in read-only mode. There will be no changes to other Yahoo properties or services, or your Yahoo account. You can find more information about the Yahoo Answers shutdown and how to download your data on this help page.

Discover

  • 4
    Upvotes of all answers in this question

    What are those orange balls on power lines, and what do they do?

    Mostly on old power lines in old neighborhoods, there are what seem to be fiberglass balls about 2 feet in diameter that have the power line running right through the middle of them.  (I can see the shiny fiberglass weathering out of the old ones.) 

      I thought that they might be insulators to keep different phase power lines from clashing and shorting out in high winds.  I used to think that they were warnings to low flying aircraft, but some of them are so low that they would have to be real barn stormers, rather I think those might warn house-movers.  My dad even joked that they were helium floats that helped hold up long runs of power lines.  Lastly, I just kind of guessed that they might be a physical impediment to rats running from building to building. 

      I couldn't find one of my old photos of them quickly so I drew this picture in paint:

    5 Answers1 day ago
  • 5
    Upvotes of all answers in this question

    Can an oversized block of aluminum function as a heatsink?

    For a microprocessor. The dimensions of the block are at least 2.5x that of a typical heatsink. This is a dual socket 370 Pentium III (1.33ghz) server board. But I ask as a general principle. I could add dedicated fans, if seemed necessary. Shouldn't a large block be able to absorb a lot of heat?

    7 Answers4 days ago
  • 2
    Upvotes of all answers in this question
  • 1
    Upvotes of all answers in this question
  • 6
    Upvotes of all answers in this question
  • 6
    Upvotes of all answers in this question
  • 2
    Upvotes of all answers in this question

    What type of study works with microprocessor architecture?

    Favorite Answer:

    Electronic Engineering, Solid State Physics, Chemistry and more...

    4 Answers1 week ago
  • 2
    Upvotes of all answers in this question

    How does an ATM work?

    I'm honestly wondering about the mechanics of an ATM network. How does an ATM network work? Is there an electronic clearinghouse that banks are a part of that facilitates the transaction? Why can an ATM process a transaction almost instantaneously while it takes me three days to do a bank transfer? 

    5 Answers1 week ago
  • 3
    Upvotes of all answers in this question

    Front or rear?

    Favorite Answer:

    This is learned behavior, so you could get trained to drive that bus much as a ship captain steers those large shipping vessels (from the rear) or steer as we normally train ourselves, from the front.  I do not think either is more difficult for someone with no experience at all.  Once you learn to assume a location of reference though, all your training will revolve around that location. 

    Note that not all learned behavior relies on vision.  We feel the movement of the vehicle, and even hear sounds, and that is part of the feedback system.  If you change places in the vehicle, the feedback will differ, and you would have to retrain your automated response. You could definitely do it, and it would not be hard for most people, but it would still be needed.

    I'll give you a real example: video games. Many, if not most, video games give the player a choice of view, whether through the "eyes" of the character, or from a viewpoint behind the character.  Many of the games I have played will force a rear-view perspective when riding a horse.  However, I usually take the first-person perspective in games (I look at the world as if through the eyes of the character).  The first few times that I played games where that third-person/rear-view perspective got forced when riding a horse ended up with me unable to control the character/horse very well.  Eventually, I learned how to deal with the effects caused by the different perspective.

    I am certain that players who always assume a third-person perspective (view from behind the character) would have had no issue learning how to control a horse in a video game.  They would, instead, tend to have difficulty adjusting ot the first-person perspective.

    5 Answers2 weeks ago
  • 6
    Upvotes of all answers in this question
  • 1
    Upvotes of all answers in this question
  • 0
    Upvotes of all answers in this question

    Generator still running, no power and SOUNDS DIFFERENT.?

    Just as I was switching over to generator, it very briefly powered up the room then the generator started sounding differently (more loose, louder) without powering the room.

    4 Answers2 weeks ago
  • 3
    Upvotes of all answers in this question
  • 12
    Upvotes of all answers in this question

    Is setting up windmills along the sea-coast a good idea because of the constant winds there?

    Favorite Answer:

    Wind turbines must be placed where there are fairly constant winds. On the sea coast the winds flow out to sea during the night and morning and toward the land after ~ 10Am until after sundown.

    Wind turbines can rotate 180 degrees so they can operate all of the time there is wind.

    As far as Bird strikes go, Birds learn to avoid them or die. The efficiency of turbines is increasing and costs are decreasing. wind turbines are moveable.

    Yes it is a good idea, better than oil drilling.

    7 Answers3 weeks ago
  • 21
    Upvotes of all answers in this question

    if you jumped from a 100 storey building onto a giant inflatable 'safety bed' - would you still get injured ?

    was debating this just now with my brother and he say's yes you would get injured because of the velocity at which you'd make impact with that safety bed.

    think giant inflatable bouncy castle.  that kinda thing.  100 storey building, thats a tall. thats some jump.  could one jump and land on such a thing and not be hurt at all ?

    21 Answers3 weeks ago
  • 1
    Upvotes of all answers in this question
  • 7
    Upvotes of all answers in this question

    Can some one explain radio harmonics to me?

    So the fundamental frequency is the frequency being transmitted? And the Harmonics frequency are the unwanted frequencies? So the person transmitting on a frequency say example 35MHz is the fundamental frequency. And the other frequencies above that are the Harmonics frequencies?

    Can some one explain this quote better?Quote Harmonics are defined as an unwanted higher frequency that is multiple of the fundamental frequency. Harmonics create a distortion in the fundamental waveform. QuoteHow do you know what the harmonics frequencies are?

    8 Answers4 weeks ago
  • 1
    Upvotes of all answers in this question

    Why two 5v 10uf capacitors in series 5uf 10v and not 10uf 10v like batteries?

    Why two 5v 10uf capacitors in series become 10v 5uf

    and not 10v 10uf like how batteries behave?

    How does the capacitance get halved when?

    In parallel capacitance adds up the same way batteries do.

    but in series capacitance halves. Not the same behavior as batteries. why do batteries stay the same capacity in series but higher voltage.

    but capacitors get half the capacity at higher voltage?is there some way that its not as simple as this??

    6 Answers3 weeks ago
  • 5
    Upvotes of all answers in this question

    Can anyone call himself an engineer?

    Is it a protected title or can anyone call himself an engineer? Can you work as an "engineer" without having a degree in "engineering"?

    10 Answers4 weeks ago
  • 5
    Upvotes of all answers in this question
Ask