PhysicsQuest

Why liquid is not measured in kilogram ?

What would happen ..

If the Earth suddenly stopped spinning ?
🌎

The important thing is not to stop questioning. Curiosity has its own reason for existing.”

— Albert Einstein

“I would rather have questions that can't be answered than answers that can't be questioned.”

Richard Feynman:

Can sound travel in space ?

🔊🌖

you want to boil an egg 🥚as fast as possible, where would you have the best luck?
​A) At the Beach (Sea Level) 🏖️
​B) On the Summit of Mt. Everest (High Altitude) 🏔️

Airplanes weigh thousands of kilograms…
So why don’t they fall? 🤔
How do they stay up in the air? ✈️

When you stir hot tea ☕, the motion of molecules increases…
So why doesn’t the temperature increase too? 🤔
In fact, why does the tea cool down?

What are examples of positive temperature coefficient materials?