Explaining a car on Instagram: "Follow (us) @ExplainingACar to learn something NEW about vehicles every day 🚗💫 When you shift gears — whether manually or automatically — your transmission is changing how the engine’s power is delivered to the wheels ⚙️🚗 Inside the gearbox, a set of gears and shafts work together to balance torque (pulling power) and speed. Lower gears give more torque for acceleration or climbing hills, while higher gears reduce torque to allow smoother, fuel-efficient cruisi

Explaining The Universe on Instagram: "Follow (us) @ExplainingTheUniverse to learn something NEW every day 🧠💫 A dam is a barrier built across a river or stream to control the flow of water. By holding back water, dams create reservoirs that can be used for drinking water, irrigation, hydroelectric power generation, flood control, and recreation. There are several types—such as gravity dams (which rely on their weight to resist water pressure), arch dams (curved, transferring force into the val