सवर्णों का आंदोलन पहुँच रहा है दिल्ली! देश के अलग-अलग कोने से सवर्ण अधिकारों को ले कर हज़ारों लोग दिल्ली के लिए तैयार हो रहे हैं क्योंकि भाजपा को यही एक भाषा समझ में आती है। @RHAreforms इस आंदोलन को अपना वैचारिक समर्थन देता है।
I showed you why ice expands.
Now watch what happens when salt shows up.
The ions smash the hydrogen bonds.
The crystal collapses — even at –5 °C.
That’s why we salt the roads.
🎥 @dreamsNscience with Blender
How do trains climb steep mountain tracks without rolling backward? Sometimes, a powerful helper locomotive called a banker engine does the trick!
On steep railway gradients, the main locomotive may need extra pulling force to move a heavy train uphill. A banker engine provides additional tractive effort by pushing the train from behind, helping it climb the slope. Both locomotives work together, while the grip between the wheels and rails determines how much force they can transfer without slipping.
MAIN LOCOMOTIVE PULLS → BANKER ENGINE PUSHES → EXTRA TRACTIVE EFFORT → TRAIN CLIMBS
Not every mountain train needs a banker engine—but on selected steep routes, this extra power can make a huge difference! #IndianRailways #bankerengine #concept