14 votes

Near the end of the Middle Ages a device came into service that helped avid readers: the book carousel or book wheel

2 comments

  1. [2]
    cfabbro
    Link
    The video in the article of the 17th century one in action is pretty neat: https://videopress.com/v/9yLXdojY I especially like how each platform stays at the perfect angle as the whole device...

    The video in the article of the 17th century one in action is pretty neat:
    https://videopress.com/v/9yLXdojY

    I especially like how each platform stays at the perfect angle as the whole device rotates. There must be some sort of hidden counter-rotating gearing inside it since it doesn't appear the platforms are just free floating.

    3 votes
    1. MimicSquid
      Link Parent
      There's a partial representation of the internal gearing in figure 7 in the article, with 9 gears in the section we can see. It's always cool to see how advanced things were in the past; for all...

      There's a partial representation of the internal gearing in figure 7 in the article, with 9 gears in the section we can see.

      It's always cool to see how advanced things were in the past; for all that they weren't where we are now, humans have always been creative craftsmen and voracious consumers of information.

      1 vote