Pourquoi les trains ne déraillent pas#Science #popularscience #tiktokfr

♪ Why the wheels of trains will never go away ♪ ♪ When they roll on a simple ride of steel ♪ ♪ At first glance, it seems impossible ♪ ♪ To stop metal, to throw at full speed ♪ ♪ The secret is not in the locomotive ♪ ♪ It is in the road ♪ ♪ The wheels of trains are not flat ♪ ♪ These are the magic mechanics ♪ ♪ This shape creates a natural center ♪ ♪ If the train glises towards the left ♪ ♪ Where I go, I go, I go, I go, I go, I go, I go ♪ ♪ Its diameter increases ♪ ♪ And the advance is fast ♪ ♪ And a real center ♪ ♪ On the right, it's the same ♪ ♪ The corners of the corner are the same ♪ ♪ The wheels are the same ♪ ♪ And the corners are the same ♪ ♪ The edges of the wheels are the same ♪ ♪ The corners are the same ♪ ♪ The corners are the same ♪ ♪ Its diameter increases ♪ ♪ And the advance is fast ♪ ♪ And a real center ♪ ♪ On the right, it's the same ♪ ♪ The corners are the same ♪ ♪ The wheels of trains are not flat ♪ ♪ These are the magic mechanics ♪ ♪ This shape creates a natural center ♪ ♪ If the train glises towards the left ♪