2023-06-04 Hacker News Top Articles and Its Summaries
1. Why do railway tracks have crushed stones alongside them? Total comment counts : 31 Summary error Top 1 Comment Summary The article explains that keeping crushed stones under the tracks clean is important to prevent fouling, which could cause derailment. The stones move slightly as each train passes above them, and this helps keep the track straight and level. Fouling stops this effect, and railway maintenance involves digging out all the stones, washing them, and putting them back every 25 years....