**Feynman**

How Feynman Diagrams Revolutionized Physics | Quanta Magazine

Physics
feynman

5 days ago by sjmarshy

In the late 1940s, Richard Feynman invented a visual tool for simplifying particle calculations that forever changed theoretical physics.

5 days ago by sjmarshy

TIL about Richard Feynman who taught himself trigonometry, advanced algebra, infinite series, analytic geometry, and both differential and integral calculus at the age of 15. Later he jokingly Cracked the Safes with Atomic Secrets at Los Alamos by trying

Feynman Children

6 days ago by icelandicstorm

Feynman Children

6 days ago by icelandicstorm

Teach debugging

23 days ago by nhaliday

A friend of mine and I couldn't understand why some people were having so much trouble; the material seemed like common sense. The Feynman Method was the only tool we needed.

1. Write down the problem

2. Think real hard

3. Write down the solution

The Feynman Method failed us on the last project: the design of a divider, a real-world-scale project an order of magnitude more complex than anything we'd been asked to tackle before. On the day he assigned the project, the professor exhorted us to begin early. Over the next few weeks, we heard rumors that some of our classmates worked day and night without making progress.

...

And then, just after midnight, a number of our newfound buddies from dinner reported successes. Half of those who started from scratch had working designs. Others were despondent, because their design was still broken in some subtle, non-obvious way. As I talked with one of those students, I began poring over his design. And after a few minutes, I realized that the Feynman method wasn't the only way forward: it should be possible to systematically apply a mechanical technique repeatedly to find the source of our problems. Beneath all the abstractions, our projects consisted purely of NAND gates (woe to those who dug around our toolbox enough to uncover dynamic logic), which outputs a 0 only when both inputs are 1. If the correct output is 0, both inputs should be 1. The input that isn't is in error, an error that is, itself, the output of a NAND gate where at least one input is 0 when it should be 1. We applied this method recursively, finding the source of all the problems in both our designs in under half an hour.

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1. Write down the problem

2. Think real hard

3. Write down the solution

The Feynman Method failed us on the last project: the design of a divider, a real-world-scale project an order of magnitude more complex than anything we'd been asked to tackle before. On the day he assigned the project, the professor exhorted us to begin early. Over the next few weeks, we heard rumors that some of our classmates worked day and night without making progress.

...

And then, just after midnight, a number of our newfound buddies from dinner reported successes. Half of those who started from scratch had working designs. Others were despondent, because their design was still broken in some subtle, non-obvious way. As I talked with one of those students, I began poring over his design. And after a few minutes, I realized that the Feynman method wasn't the only way forward: it should be possible to systematically apply a mechanical technique repeatedly to find the source of our problems. Beneath all the abstractions, our projects consisted purely of NAND gates (woe to those who dug around our toolbox enough to uncover dynamic logic), which outputs a 0 only when both inputs are 1. If the correct output is 0, both inputs should be 1. The input that isn't is in error, an error that is, itself, the output of a NAND gate where at least one input is 0 when it should be 1. We applied this method recursively, finding the source of all the problems in both our designs in under half an hour.

23 days ago by nhaliday

Richard Feynman on Twitter: "FEYNMAN learning strategy in THREE points: 1. Continually ask "Why?" 2. When you learn something, learn it to where you can explain it to a child. 3. Instead of arbitrarily memorizing things, look for the explanation that make

4 weeks ago by timbeadle

FEYNMAN learning strategy in THREE points:

learning
feynman
4 weeks ago by timbeadle

Richard Feynman on education in Brazil

8 weeks ago by rbardini

In regard to education in Brazil, I had a very interesting experience. I was teaching a group of students who would ultimately become teachers, since at that time there were not many opportunities in Brazil for a highly trained person in science. These students had already had many courses, and this was to be their most advanced course in electricity and magnetism – Maxwell’s equations, and so on.

feynman
education
brazil
science
8 weeks ago by rbardini