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

No comments:

Post a Comment

'I can't hear it' - Wimbledon's first day of electronic calling

Some players have said the calls are too quiet. Others say they miss the tradition. How has the first day of electronic line-calling gone at...