102 + 112 + 122 = 132 + 142
Science & Math
More Magic
If this magic square worked upside down, this one works when reversed, “mirrorwise”:
| 96 | 64 | 37 | 45 |
| 39 | 43 | 98 | 62 |
| 84 | 76 | 25 | 57 |
| 23 | 59 | 82 | 78 |
| 54 | 73 | 46 | 69 |
| 26 | 89 | 34 | 93 |
| 75 | 52 | 67 | 48 |
| 87 | 28 | 95 | 32 |
Fancy That
31415926535897932384626433832795028841 is a prime number.
It’s also the first 38 digits of pi.
“Self-Locating” Strings
In the decimal expansion for pi, the digits 16470 appear in position 16,470.
And the digits 44899 appear in position 44,899.
Math Notes
37 = 32 + 72 – 3 × 7 = (33 + 73)/(3 + 7)
Cosmic Irony
In 1961, astronaut Gus Grissom nearly drowned after a splashdown when his Mercury capsule opened prematurely. He recommended making the hatch more secure.
Eight years later he died when Apollo 1 caught fire. The hatch had prevented his escape.
Juvenile Chemistry
This compound, C4H5As, is known as arsole.
When it’s fused to a benzene ring, it’s called benzarsole.
No, I’m not above pointing that out.
Math Notes
371 = 33 + 73 + 13
Math Notes
5882 + 23532 = 5882353
The Haberdasher’s Problem
Can you make three cuts in a square of cloth and rearrange the pieces to form an equilateral triangle?
