Youssef Kharchouf
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anthropology (1)
archaeology (1)
book notes (3)
culture (1)
electrochemistry (1)
electromagnetism (1)
gauge theory (1)
history (3)
mathematics (1)
notes (3)
philosophy (1)
physics (3)
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politics (1)
quantum electrodynamics (1)
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set theory (1)
topology (1)

Lectures notes on the Geometrical Anatomy of Theoretical Physics

mathematics
physics
topology
set theory
notes

Working notes from Frederic Schuller’s lecture series on the mathematical foundations of physics — axiomatic set theory, topological spaces, and the structures underlying classical and quantum mechanics.

May 10, 2026
 

Hagarism The Making of the Islamic World (by Crone & Cook)

history
book notes

Important book, from the school of skeptical historiography, which explores the early history of Islam and its relationship with Judaism and Christianity.

Aug 19, 2023

Book notes - The Dawn of Everything (by Graeber & Wengrow)

history
book notes
anthropology
archaeology

The archaeological and anthropological case that our ancestors were conscious political actors who experimented with wildly different forms of social and political organization, and often deliberately rejected what is now often assumed to be inherent in human nature.

Aug 17, 2023

Reading Notes on Brazilian Governance (2002–2023)

notes
political-economy

Personal reading notes on Brazilian governance, environmental policy, and democratic institutions — from Lula’s first presidency through the Bolsonaro years and back.

Nov 2, 2022
 

Book notes - L’idéologie arabe contemporaine (by Abdallah Laroui)

book notes
philosophy
politics
culture
history

Reading notes on Laroui’s anatomy of Arab intellectual thought.

Aug 17, 2022

Electrochemistry Basics

electrochemistry
notes

Notes on the basics of electrochemistry from when I first started my PhD as a physicist with no prior background in chemistry around 2021.

Oct 16, 2021
 

Local Gauge Invariance

physics
gauge theory
electromagnetism
quantum electrodynamics

If we insist on a symmetry on the Dirac Lagrangian, which we seemingly have no right to expect, the entire structure of QED falls out.

Dec 12, 2019

A first look into Dynamic Programming

A gentle first look at dynamic programming - How storing intermediate results transforms a naive recursive Fibonacci from O(2ⁿ) to O(n), and why the name sounds considerably more impressive than the idea.

Jan 19, 2017

What would happen if aliens attack

physics
sci-fi

Using Penrose diagrams to work out what actually happens when a hostile alien civilization weaponizes a kugelblitz against Earth, and whether an infinitely strong Dyson sphere could save us.

Jan 19, 2017
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