Why November is the most dangerous month for trains

Sponsored by Southeastern Railway. Are 'leaves on the line' really a problem for trains? I investigate the famous excuse with some ice skates, a jar of pectins and a blow torch.

For more info from Southeastern: https://bit.ly/2CvBsLX

Animations by Dom Burgess. His brilliant channel, Every Think, is here:

https://www.youtube.com/channel/UCGI000V6ZIAQf97MNybAaLQ

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