How does a bicycle stay up?
Bicycle's Secret Dance
How does a bicycle stay up?
You're riding down the street, hands off the handlebars, grinning like you've discovered magic. The bike rolls forward, perfectly balanced, not tipping left or right. How is that even possible? A two-wheeled machine should topple over the instant you let go — but it doesn't.
Here's the weird truth: scientists argued about this for over a century, and they only cracked it recently. It's not one trick keeping you upright — it's three clever physics moves happening at once, like a juggler keeping three balls in the air. Let's watch them one by one.
