Advertisement
If you have a new account but are having problems posting or verifying your account, please email us on hello@boards.ie for help. Thanks :)
Hello all! Please ensure that you are posting a new thread or question in the appropriate forum. The Feedback forum is overwhelmed with questions that are having to be moved elsewhere. If you need help to verify your account contact hello@boards.ie
Hi there,
There is an issue with role permissions that is being worked on at the moment.
If you are having trouble with access or permissions on regional forums please post here to get access: https://www.boards.ie/discussion/2058365403/you-do-not-have-permission-for-that#latest

My last Techie Q today.

  • 05-04-2019 2:20pm
    #1
    Wtf ?
    Banned (with Prison Access) Posts: 343 ✭✭


    When you opposite 2 magnets they push apart. Could this be used in say, Car shock absorbers or a more comfy ride on trains ? I welcome your thoughts ?


Comments

  • #2
    gctest50
    Registered Users, Registered Users 2 Posts: 9,605 ✭✭✭gctest50


    Wtf ? wrote: »
    When you opposite 2 magnets they push apart. Could this be used in say, Car shock absorbers or a more comfy ride on trains ? I welcome your thoughts ?

    train



  • #3
    bnt
    Registered Users, Registered Users 2 Posts: 13,091 ✭✭✭✭bnt


    The job that suspension does actually has several parts to it, when you break it down in physical terms:
    1. Handle bumps by absorbing energy from them: this is what springs do;
    2. Disspiate excess energy from motion: this is what dampers / shock absorbers do. If they weren't there, the car would bounce horribly after every bump.
    3. Carry the weight of the vehicle;

    Magnets could possibly be used in place of springs, but springs are generally better at that job. They wouldn't do any damping, though, so they wouldn't make the ride better on their own.

    edit: I know about Maglev trains - that is a whole 'nother level of complexity and expense there.

    You are the type of what the age is searching for, and what it is afraid it has found. I am so glad that you have never done anything, never carved a statue, or painted a picture, or produced anything outside of yourself! Life has been your art. You have set yourself to music. Your days are your sonnets.

    ―Oscar Wilde predicting Social Media, in The Picture of Dorian Gray



  • #4
    begbysback
    Closed Accounts Posts: 2,910 ✭✭✭begbysback


    A more productive use of magnets would be in the treatment of constipation, for if you swallow a magnet and then a few hours later swallow snither then the second magnet will push the first one south


  • #5
    gctest50
    Registered Users, Registered Users 2 Posts: 9,605 ✭✭✭gctest50


    Wtf ? wrote: »
    When you opposite 2 magnets they push apart. Could this be used in say, Car shock absorbers or a more comfy ride on trains ? I welcome your thoughts ?

    car




  • #6
    Wtf ?
    Banned (with Prison Access) Posts: 343 ✭✭Wtf ?


    gctest50 wrote: »
    car


    I stand corrected, Thank you !


  • Advertisement
  • #7
    bnt
    Registered Users, Registered Users 2 Posts: 13,091 ✭✭✭✭bnt


    Wtf ? wrote: »
    I stand corrected, Thank you !
    To be fair, though, the Bose suspension doesn't use actual magnets in the suspension: rather, it's electromagnetic, using linear motors with an electronic control system. (A linear motor moves a shaft up or down in response to an applied voltage - they're used to start rollercoasters, for example.)

    You are the type of what the age is searching for, and what it is afraid it has found. I am so glad that you have never done anything, never carved a statue, or painted a picture, or produced anything outside of yourself! Life has been your art. You have set yourself to music. Your days are your sonnets.

    ―Oscar Wilde predicting Social Media, in The Picture of Dorian Gray



  • #8
    Teepinaw
    Registered Users, Registered Users 2 Posts: 145 ✭✭Teepinaw


    Wtf ? wrote: »
    When you opposite 2 magnets they push apart. Could this be used in say, Car shock absorbers or a more comfy ride on trains ? I welcome your thoughts ?

    Not directly related to the question about shock absorbers themselves, but have you heard about superconductivity?


  • #9
    [Deleted User]
    Posts: 17,378 ✭✭✭✭ [Deleted User]


    Wtf ? wrote: »
    When you opposite 2 magnets they push apart. Could this be used in say, Car shock absorbers or a more comfy ride on trains ? I welcome your thoughts ?

    Natural magnets are extremely weak. An electromagnet requires an awful lot of electricity.


  • #10
    jimgoose
    Registered Users, Registered Users 2 Posts: 20,199 ✭✭✭✭jimgoose


    Some car manufacturers have been fiddling with magnetorheological fluid in suspension dampers so as to facilitate electronic adjustment of damping rates on-the-fly. I don't know if any such units are on the road yet, they might be. That's magnetism, of a sort. GM are also looking at using similar fluid in drivetrain clutches.


  • #11
    Skylinehead
    Registered Users, Registered Users 2 Posts: 11,690 ✭✭✭✭Skylinehead


    gctest50 wrote: »
    train


    No, we've already established that buttered cats power maglev.


  • Advertisement
  • #12
    Wtf ?
    Banned (with Prison Access) Posts: 343 ✭✭Wtf ?


    Teepinaw wrote: »
    Not directly related to the question about shock absorbers themselves, but have you heard about superconductivity?

    Not really but always open to knowledge, A learning link perhaps ? Thanks.


  • #13
    [Deleted User]
    Posts: 17,378 ✭✭✭✭ [Deleted User]


    begbysback wrote: »
    A more productive use of magnets would be in the treatment of constipation, for if you swallow a magnet and then a few hours later swallow snither then the second magnet will push the first one south

    A joke I presume?

    Have fun with your intestines stuck to each other..


  • #14
    Pherekydes
    Registered Users, Registered Users 2 Posts: 16,214 ✭✭✭✭Pherekydes


    Next techie Q:

    Where is the 'ANY' key?


Advertisement