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Addendum

Home » Topics » Departments » Addendum
  • Dumb and dumber 1
    May 19, 2022
    By Aaron Fagan

    Ear-to-Gear Ratio: An Uncanny Valley of Sound

    When it comes to noise, vibration and harshness (NVH), I’m reminded of that dog-van scene from Dumb and Dumber where Jim Carrey says, “Want to hear the most annoying sound in the world?” and then proceeds to emit an astonishingly awful noise. Annoying as NVH may be, it’s a key metric in drive-system development for e-mobility, and the careful design and manufacture of gears are crucial to minimizing NVH as tolerance variations can result in large differences between nominally identical components.

  • Marble machine
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    By Joseph L. Hazelton

    Gears that Transport Bearings for Entertainment

  • 4135 holiday season addendum thumb
    November 1, 2021
    By Matthew Jaster

    A Gearhead’s Guide to the Holiday Season

    What holiday offering do you give the engineer or manufacturer in your life?
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  • September 1, 2021

    Highlights from MPT Expo

  • August 1, 2021

    Are you All-In on e-Mobility

  • July 1, 2021

    Are You Ready for Your Next In-Person Meeting?

  • June 1, 2021

    Not Your Average Drone Delivery

  • May 1, 2021

    Artwork with Gear Teeth

  • March 1, 2021

    America’s Arsenal of Democracy

  • January 1, 2021
    By Jack McGuinn

    George Stephenson, “The Father of Railways”

  • November 1, 2020

    Big Gears: Seeing is Believing

  • September 1, 2020

    Before the Bookmobile, there was the Bookwheel

  • August 1, 2020

    Stepping Out

Read More

Authors

  • Michael goldstein
    Michael Goldstein
  • Matthew jaster
    Matthew Jaster
  • Erik schmidt
    Erik Schmidt
  • Alex cannella
    Alex Cannella
  • Jack mcguinn
    Jack McGuinn
  • Charles schultz
    Charles D. Schultz
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