ELI5: Explain Like I'm 5

Q're perpetuum

Okay kiddo, let's talk about q're perpetuum!

Have you ever seen something that just keeps going and going without stopping? Like a wind-up toy that never runs out of energy? That's kind of what q're perpetuum is!

Q're perpetuum is actually a phrase in Latin, which means "perpetual motion". That means something that keeps moving forever without anyone needing to do anything to keep it going.

Now, in our world, we know that perpetual motion machines don't really exist. But, some people believe that they could exist or have even tried to make them.

Scientists have studied q're perpetuum and have found that it's impossible because it goes against a really important law of physics called the law of conservation of energy. This law basically says that energy cannot be created or destroyed, only transferred or transformed. So, something that keeps moving forever would need an endless source of energy, which just isn't possible.

But, some people still like to dream about the idea of q're perpetuum and it can be a fun thing to think about!