Elon Musk USC Marshall Undergraduate Commencement Speech

1) Working super hard.
2) Attract great people.
3) Focus on signal over noise.
4) Don't just follow the trend.
5) Now is the time to get risks.

Rawlemon Spherical Solar Energy Generator

Rawlemon Spherical Solar Energy Generator

Really impressive!!!
To create fire w/ magnifying glass is what we learned from science class in elementary school.
Somehow, we all forgot to use this simple application.

Rawlemon Solar Devices is on INDIEGOGO.

Pyro Board

which remind me the music w/ lightening in The Sorcerer's Apprentice


it must full of the burning smell...


Advanced version:

Ref.:
http://nigelstanford.com/Cymatics/

[Motion Sensor] Ring

I've used Kinect to develop a project.
In survey stage, we also consider Leap.
It seems that Ring is also be a good solution.

Nike Football - The Last Game

Playing it like a game, not a job!
And there's no greater danger than playing it safe.
Anyway, it energizes me.

[Standford] Note 1 of Algorithms: Design and Analysis, Part 1

I. INTRODUCTION

II. ASYMPTOTIC ANALYSIS

III. DIVIDE & CONQUER ALGORITHMS

Ref. https://www.coursera.org/course/algo

[MIT] Note 2 of Introduction to C and C++

18.01 Single Variable Calculus

Lecture 4 : Data Structures, Debugging

note: Structure Memory
ex.

#include <stdio.h>

int main()
{
    struct X
    {
        short s; 
        int i; 
        char c;
    };

    struct Y
    {
        int i;
        char c;
        short s;
    };

    struct Z
    {
        int   i;
        short s;
        char  c;
    };

    printf("%ld\n", sizeof(struct X));
    printf("%ld\n", sizeof(struct Y));
    printf("%ld\n", sizeof(struct Z));

    return 0;
}

12
8
8

Ref. http://ocw.mit.edu/courses/mathematics/18-01sc-single-variable-calculus-fall-2010/