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Show Notes
Today we talk about escalators.
The Slides: https://youtu.be/ciF1p_GMrmw
The Patreon: https://www.patreon.com/wtyppod
image credits:
met steam loco
By Hammersfan - Own work, CC BY-SA 4.0, https://commons.wikimedia.org/w/index.php?curid=79896458
tube train
By SPSmiler - Own work, Public Domain, https://commons.wikimedia.org/w/index.php?curid=400148
reno-type escalator
stolen from https://www.flickr.com/photos/63151554@N00/8772641035
macys wooden escalator
By Xiaphias, CC BY-SA 3.0, https://commons.wikimedia.org/w/index.php?curid=16078738
greenford escalator
By Billy Hicks - Taken by myself using digital camera., CC BY-SA 3.0, https://commons.wikimedia.org/w/index.php?curid=1128884