Thursday, January 31, 2019

Polar vortex: Fire used to melt ice on Chicago train tracks

Flames from gas-fed heaters stop snow and ice from clogging up the track at railway intersections.

from BBC News - Home https://bbc.in/2RsdKSK
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A Functional Taxonomy of World Models by Fei-Fei Li

Article URL: https://twitter.com/drfeifei/status/2062247238143996275 Comments URL: https://news.ycombinator.com/item?id=48388684 Points: ...