Welcome to Duffell.org
There has been a little restructuring for security purposes; if you want to see the rest of the site, you'll have to change the url directly, rather than using the standard links.
In the meantime, enjoy my latest physics text updates:
[Chapter 1] Review of Manifold Concepts
[Chapter 2] Overview of Group Theory
[Chapter 3] Lie Groups
[Chapter 4] Fiber Bundles
That's all for now.
∇ • E = ρ/ε0
∇ × E = -dB/dt
∇ • B = 0
∇ × B = μ0 J + dE/dt
Nothing else to see here.