How Do Trains Stay On The Track?
Start writing a post
Politics and Activism

How Do Trains Stay On The Track?

Do you know the answer?

10361
How Do Trains Stay On The Track?
Corvallisadvocate.com

I bet most of you reading this article thought this must have a fairly simple answer. You may have had started theorizing about the wheels and how they might have a little edge guard to keep them straight. Maybe you reasoned they might have a shallow groove that makes them stay lined up on the rails. After all, those ideas do make sense if we assume the train is going down a straight track.

What if a train has to turn?

Try walking in a circle. If you do, you will notice your outside leg will be taking bigger steps and moving farther than your inside leg. Obviously, for anything to turn, one side will need to move farther than the other. Now you are probably thinking back to your previous ideas and how they would need to be modified in order for the train to actually turn.

Maybe it is like a car and uses a differential to make the left and right wheels spin at different rates. However, that is not the case. The wheels are both connected by a solid metal bar. So with this in mind, how does a train stay on the tracks?

My guess is most of you are still stumped. I certainly was when I was asked these questions.

The answer is surprisingly simple. The wheels are slightly tapered and they shift over when turning which allows the outside wheel to rotate around a larger diameter than the inside wheel. Then the wheels shift back to the center when the track straightens out.

Here is a visual example:

Richard Feynman, one of the greatest physicists of all time, explains in this video.

Report this Content
This article has not been reviewed by Odyssey HQ and solely reflects the ideas and opinions of the creator.
the beatles
Wikipedia Commons

For as long as I can remember, I have been listening to The Beatles. Every year, my mom would appropriately blast “Birthday” on anyone’s birthday. I knew all of the words to “Back In The U.S.S.R” by the time I was 5 (Even though I had no idea what or where the U.S.S.R was). I grew up with John, Paul, George, and Ringo instead Justin, JC, Joey, Chris and Lance (I had to google N*SYNC to remember their names). The highlight of my short life was Paul McCartney in concert twice. I’m not someone to “fangirl” but those days I fangirled hard. The music of The Beatles has gotten me through everything. Their songs have brought me more joy, peace, and comfort. I can listen to them in any situation and find what I need. Here are the best lyrics from The Beatles for every and any occasion.

Keep Reading...Show less
Being Invisible The Best Super Power

The best superpower ever? Being invisible of course. Imagine just being able to go from seen to unseen on a dime. Who wouldn't want to have the opportunity to be invisible? Superman and Batman have nothing on being invisible with their superhero abilities. Here are some things that you could do while being invisible, because being invisible can benefit your social life too.

Keep Reading...Show less
Featured

19 Lessons I'll Never Forget from Growing Up In a Small Town

There have been many lessons learned.

71005
houses under green sky
Photo by Alev Takil on Unsplash

Small towns certainly have their pros and cons. Many people who grow up in small towns find themselves counting the days until they get to escape their roots and plant new ones in bigger, "better" places. And that's fine. I'd be lying if I said I hadn't thought those same thoughts before too. We all have, but they say it's important to remember where you came from. When I think about where I come from, I can't help having an overwhelming feeling of gratitude for my roots. Being from a small town has taught me so many important lessons that I will carry with me for the rest of my life.

Keep Reading...Show less
​a woman sitting at a table having a coffee
nappy.co

I can't say "thank you" enough to express how grateful I am for you coming into my life. You have made such a huge impact on my life. I would not be the person I am today without you and I know that you will keep inspiring me to become an even better version of myself.

Keep Reading...Show less
Student Life

Waitlisted for a College Class? Here's What to Do!

Dealing with the inevitable realities of college life.

132572
college students waiting in a long line in the hallway
StableDiffusion

Course registration at college can be a big hassle and is almost never talked about. Classes you want to take fill up before you get a chance to register. You might change your mind about a class you want to take and must struggle to find another class to fit in the same time period. You also have to make sure no classes clash by time. Like I said, it's a big hassle.

This semester, I was waitlisted for two classes. Most people in this situation, especially first years, freak out because they don't know what to do. Here is what you should do when this happens.

Keep Reading...Show less

Subscribe to Our Newsletter

Facebook Comments