Author: Xinyi

Beginner’s Rubik’s Cube!

I've brought one Rubki's cube to college from home in freshmen year. Now I'm an old senior, I still haven't been able to solve these cubes. Plus, I've got three more from various companies at career fairs. Finally decided to learn about it. I was able to do the first layer, but always get stuck … Continue reading Beginner’s Rubik’s Cube!


Category of Networks PPT

It's interesting to find this presentation because last week as I was traveling and thinking about random things, I suddenly realized that perhaps graphs & networks are the underlying math for ways of describing our universe! We have social networks, biological systems, genealogy(family trees), entropy, lots of math objects (even knots!), brain, CFT, Feynman diagrams, … Continue reading Category of Networks PPT

Quotes bt Physicists

On education: In teaching history, there should be extensive discussion of personalities who benefited mankind through independence of character and judgement.  --Einstein Critical comments by students should be taken in a friendly spirit.  --Einstein Accumulation of material should not stifle the student's independence. --Einstein