# Category Archives: Science

## A Mathematical Limerick

A mathematical limerick is truly a thing of beauty. $$\displaystyle{\frac{12 + 144 + 20 + 3\times\sqrt{4}}{7}} + 5\times11 = 9^{2} + 0$$ A dozen, a gross, and a score Plus three times the square root of four Divided by seven Plus five times eleven Is nine squared and not a bit more.

## If the Sum of the Digits of a Number is Divisible by Three, the Number Is Divisible by Three

Take a two-digit base-10 number where the digits are represented by ab. This number is equal to 10a + b and the sum of its digits are a + b. The difference between the number and the sum is 9a, which is divisible by three. So a + b is divisible by three, if and only… Read More »

## Werner Heisenberg, Erwin Schrödinger, and Georg Ohm Were Traveling in a Car…

Werner Heisenberg, Erwin Schrödinger, and Georg Ohm were traveling in a car when they got pulled over. Heisenberg was driving. The cop asked him, “Do you know how fast you were going?” “No,” Heisenberg replied. “But I know where I am.” The cop said, “You were doing 55 in a 35 zone.” Heisenberg threw up… Read More »