Detailed text transcripts for TV channel - BBCNEWS - 20201220:12:34:00
This new method involves blasting the leaves with a high—energy electrical plasma beam — basically, a bolt of lightning. plasma track hopes to attach these concentrated plasma rays to the front of trains, which will burn off the layer of compacted leaves. the energy comes from regenerative braking on the train itself, or spare electricity from diesel trains. there are 10 million trees that line the uk's railways and every autumn, thousands of tons of leaves fall onto the tracks. as trains whiz over them, the wheels compact the leaves into a black, greasy paste that sticks to the tracks. th...