Theory Quote by Stephen Hawking
““Up to about thirty years ago, it was thought that protons and neutrons were “elementary” particles, but experiments in which protons were collided with other protons or electrons at high speeds indicated that they were in fact made up of smaller particles.””
About This Quote
Source Speech: Public Lecture on Particle Physics, 1990
Protons and neutrons are composed of smaller particles called quarks, revealed by high‑energy collisions.
In simple terms: Protons are not fundamental; they contain quarks.
Key Takeaway
Recognize that deeper structures underlie apparent simplicity.
Themes
physics
discovery
structure
Mood
curious
analytical
Type
scientific
educational
When to use this quote
- university lecture
- science documentary
- academic discussion
Key Concepts
particle physics
standard model
Questions to Reflect On
- What other "elementary" particles might be composite?
- How does this change our view of matter?
A Different Perspective
Complex experiments are needed to uncover subatomic layers.
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