Uploaded March 2024 | Updated September 2026, 2 weeks ago
On the occasion of his tenure, Prof. Yasha Neiman presents his lecture,
"Gravity just wants to spend more time with you"
This is a physics lecture for non-physicists. Our main goal will be to understand the familiar gravitational force as a consequence of time dilation. We will talk about:
1. How the reflection and refraction laws of geometric optics follow from
Fermat's least-time principle.
2. "Experienced time" vs. "coordinate time" in Special Relativity and the twins' paradox.
3. Inertia from a "most experienced time principle".
4. Newtonian gravity from a modification of the experienced-time formula.
5. The metric field of General Relativity.
6. Electromagnetism as an "extra" contribution to experienced time.
7. Mass, charge, action.
On the occasion of his tenure, Prof. Yasha Neiman presents his lecture,
"Gravity just wants to spend more time with you"
This is a physics lecture for non-physicists. Our main goal will be to understand the familiar gravitational force as a consequence of time dilation. We will talk about:
1. How the reflection and refraction laws of geometric optics follow from
Fermat's least-time principle.
2. "Experienced time" vs. "coordinate time" in Special Relativity and the twins' paradox.
3. Inertia from a "most experienced time principle".
4. Newtonian gravity from a modification of the experienced-time formula.
5. The metric field of General Relativity.
6. Electromagnetism as an "extra" contribution to experienced time.
7. Mass, charge, action.
