Book 20, Question 131 · Video
How Do Cog Railways and Funiculars Climb Slopes That Normal Trains Can’t?
Cog railways and funiculars climb slopes that normal trains cannot. Normal train wheels would slip on a steep track, like boots on wet ice. So these railways use clever tricks to g
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What Crafty Clover says in this video
Intro
Hi there, curious minds! I'm Crafty Clover! Let's discover something amazing. How do cog railways and funiculars climb slopes that normal trains can’t?
The Big Idea
Cog railways and funiculars climb slopes that normal trains cannot. Normal train wheels would slip on a steep track, like boots on wet ice. So these railways use clever tricks to grip or pull, instead of just rolling.
Wheels Slip
Step one: normal wheels slip. A normal train depends on smooth wheels gripping smooth rails. On a very steep track, they would slide backward instead of climbing.
Cog Railway
Step two: a cog railway adds teeth. It has a toothed rail in the middle of the track. A gear on the train locks into it, like a bicycle chain on its sprocket.
Funicular
Step three: a funicular uses a cable. Two cars are connected by a cable, so one going down helps pull the other up. They can climb slopes many times steeper than normal trains.
A Closer Look
Let's take a closer look at steep railways! The train has a gear. It locks into a toothed rail. A funicular has two cars on one cable. One goes down while the other goes up, both at the same time.
Quick Facts
Quick facts! Some cog trains climb slopes steeper than most roads. Switzerland has some of the steepest cog railways in the world. Funiculars work a bit like a seesaw. Always ride with a grown-up, and stay seated.
Think Like a Scientist
Now, think like a scientist! Run a toy car with a gear along a comb. See how the teeth grip. Then try a smooth ruler and compare. Which one is better for steep slopes?
Outro
Gears help trains climb mountains. Science is amazing! Crafty Clover can be found on Amazon Books, Google Bookstore, and Apple Books. Available for purchase or download! Bye for now!