# Count On

## Numberland

Numberland:

### Fifty-five

FIFTY-FIVE

Fifty-five. Five and five.
Like the time I survived
How nice to throw the dice
and climb with fives
not once but twice.

John Agard

Triangular numbers are fun:
Add the numbers in order from one.
Add one through to five then
Seven, eight, nine and ten
And you'll have FIFTY-FIVE when you're done

A Stanton

55% of the world's tungsten comes from China.

The liver is the largest organ in the human body with an average weight of 55 ounces.

Caesium is a soft, silver-white, metallic element with atomic number 55 . It is a very reactive element, exploding on contact with water and reacting instantly with air. It is also one of the most dangerous waste products of the nuclear industry.

55 is the compulsory retirement age in the British armed forces.

In the north of Belgium 55% speak a dialect of Flemish known as Vlaams. (In the south 32% speak a French dialect called Walloon.)

The ancient city of Babylon was situated 55 miles to the south of Iraq.

55 is a pyramidal number (the sum of the first five square numbers): 1 + 4 + 9 + 16 + 25 = 55

55 is a triangular number: 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 = 55

The strongest brandies contain 55% alcohol.

After 55 years of marriage you celebrate an emerald anniversary.