NOTES FOR PHYSICS

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Niels H. D. Bohr

Anyone who is not shocked by quantum theory has not understood it.

Niels H. D. Bohr
– Albert Einstein

We cannot solve our problems with the same thinking we used to create them.

– Albert Einstein
– Galileo Galilei

You cannot teach a man anything; you can only find it within yourself.

– Galileo Galilei
– Richard P. Feynman

Nobody ever figures out what life is all about, and it doesn’t matter. Explore the world. Nearly everything is really interesting if you go into it deeply enough.

– Richard P. Feynman

Recent Notes

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Refraction of Light: Definition, Laws, Causes, Applications, and Examples

Oct 8, 2025 · Pravin Sharma, MS · ⏱ 9 min read

Refraction of Light: Definition, Laws, Causes, Applications, and Examples

A compact introduction to lattices, unit cells, and symmetry in materials physics. Read more about Refraction of Light: Definition, Laws, Causes, Applications, and Examples

Reflection of Light: Laws, Types, Application, & FAQs

Aug 2, 2025 · Pravin Sharma, MS · ⏱ 6 min read

Reflection of Light: Laws, Types, Application, & FAQs

A concise guide to ray optics, Snell's law, and common image-formation examples. Read more about Reflection of Light: Laws, Types, Application, & FAQs

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