Physicist at Large

Freddie deBoer points out that the Star Trek reboots are more about action than anything else. Is there any punching or shooting in Star T...

Newton's Principia is not for the faint of heart.  His methods, being based entirely on geometric proofs rather than algebraic derivatio...

At some point I gave up on trying to get the details of each step of each proof and instead just figure out the chain of ideas from one prop...

This one was hard, because I'm pretty sure there's an error in the transcription.  The proof says that the proposition can be derive...

The Principia is almost entirely geometry, not algebra, but it is worth it.  The first proposition in Book 1, Section 2 has the most intuiti...

This section is entirely geometric proofs of lemmas concerning either areas or ratios of lengths or areas in limiting cases as angles or len...

After stating the three laws of motion, Newton starts into corollaries.  The first two corollaries involve the parallelogram law of forces, ...