What Gravity Actually Is | Full Lecture

Описание: Drop something. It falls. Simple, right? Except what just happened isn't what you think. There was no force pulling it down. No invisible hand. No tug. What actually happened is far stranger — and far more beautiful.

In this lecture, we explore what gravity actually is. Not Newton's version — a mysterious force acting across empty space — but Einstein's revelation: that gravity is the result of mass curving spacetime itself. Objects don't fall because something pulls them. They follow the natural curves of a warped universe.

Topics covered:
What Newton got right about gravity — and what he couldn't explain
Einstein's general theory of relativity explained clearly
What spacetime actually is and why it can curve
Why falling and floating are physically identical
Why astronauts on the ISS aren't weightless — they're falling
How light bends around massive objects
What black holes actually are (and what the event horizon means)
Why time runs faster at your head than your feet
How GPS relies on Einstein's relativity every single second
Why gravity remains an unsolved mystery at the quantum level

This is the fifth lecture in the Science Explained Properly series, where we explore how the universe actually works — no shortcuts, no oversimplification, just clear, thorough explanations presented at a university level.

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Presented by Dr. James Mitchell

Previous Lectures:
Why Stars Exist at All
The Invisible Scaffolding of the Universe
Why You've Never Actually Touched Anything
Why Time Only Moves Forward

Next Lecture: What Light Actually Is

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