To Stop trains: 💢💢💢💢💢 In trains, a sand container holds dry sand. When needed, the sand is released through a pipe and dropped onto the rail just in front of the driving wheels. This increases traction and helps prevent wheel slip during acceleration and wheel slide during braking. 💢💢💢💢💢 #പുതിയ അറിവുകൾ 😍 #ട്രെയിൻ #ശാസ്ത്രലോകം 😍😍

The oligodynamic effect is the ability of small amounts of metals like copper, silver, or zinc to kill or inhibit microbes. When water is stored in a copper vessel, copper ions leach into it and damage bacterial cell walls and enzymes, reducing or killing microbes. 🔶🔷🔶🔷🔶🔷🔶🔷🔶🔷 #പുതിയ അറിവുകൾ 😍😍 #ശാസ്ത്രലോകം📯📯📯 #ശാസ്ത്രലോകം 😍✴️😍 #ശാസ്ത്രലോകം 😍😍

AD #bjpindia