Skeptics with a K: Episode #225


Debating Flat Earthers, placebo sleep, mountain walks, and long commutes. Plus serial addition, friendly physicists, controlling your data, and attracting crime. Wandering the streets of Birmingham whilst high, it’s Skeptics with a K.

There is still time to donate to our sponsored walk, at justgiving.com/crowdfunding/merseysideskeptics-mss. And remember QED tickets are still available, get yours at qedcon.org.

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  1. #1 by Peter on June 1, 2018 - 02:08

    The flatearthers are correct that gyroscope stays at a fixed direction when the earth rotate below it/you travel around the earth.

    Léon Foucault that demonstrated the rotation of the earth with the now famous Foucault pendulum did the same with a gyroscope and was the one that gave the name used today.

    They are incorrect in how a artificial horizon in a aircraft work. Because gyroscope can drift and because we fly on a spherical earth they mechanisms that keep the instrument level with respect to the direction of gravity.

    So artificial horizon are designed to show the direction of the airplane relative to the direction of gravity not to a fixed direction in space.

    Two link to videos that demonstrate how it work. I know that Youtube in not the source of truth but the real design documentation are not a easy read and they are not thing that most people have any direct experience so a video demonstration seems fine.

    https://www.youtube.com/watch?v=kTXTCqMHyhg

    https://www.youtube.com/watch?v=z1QGRPVBZvw

  2. #2 by Black Knight No. 3 on June 2, 2018 - 14:38

    That was kind of spooky because I listened to this episode coming back from a week’s break in Sorrento. In fact it’s possible that mine and Marsh’s weeks overlapped but I didn’t see Marsh there.

    We also went on the train to Pompei (as well as other places), we never got approached in such a menacing manner. How an earth did you see that happening when you’ve got your head in a book? I probably wouldn’t have. I didn’t fall for the buy-your-tickets-here trick but I did buy some beat-the-queue tickets on-line before I went, these cost a few extra Euros each and when I got to the entrance there were no queues so I probably ended up just as out of pocket.

    Basically I feel lucky just not to be involved in a road accident, the separation between drivers and pedestrians is non-existent in Sorrento and simply crossing the street becomes an adventure.

  3. #3 by Laurie Pullman on July 5, 2018 - 01:35

    Just listened to an episode of Our Fake History about Madame Blavatsky and Theosophy. The Cosmic Egg bloke seems have lifted most of his race and epoch nonsense straight from Blavatsky.

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