Dust-tape
The dust that I collected from the surface of the mathematics text book cd that had been sitting on my desk for quite a few months (I don't really remember exactly how long, but it has been there since last year).
In the spirit in the mathematicishness of this dust:
Diameter of the maths cd = 120mm.
Diameter of the hole in the middle of the cd = 15mm.
Area of a circle (which this particular cd happens to be) = pi * diameter.
Area of cd = pi * 120 = ...
Where is my calculator?
Dammit! It was stolen! And I know by who!
Bah!
Computer calculator time.
Area of cd = 377mm2.
Area of the hole (is it possible to find the area of nothing?) = 47.12mm2.
Therefore the area of the maths cd is:
Area of the cd - area of the hole = 329.87mm2.
Therefore there is 329.87mm2 worth of dust stuck to this piece of sticky tape.
And people say that maths is useless. Why, if we were able to calculate the exact amount of dust in the universe using this complicated method, we could then calculate the exact percentage dust makes up in the total amount of matter in the universe. With this figure, we could then create a universe-wide matter destroying device, and program it to destroy a percentage of matter in the universe equal to the percentage of dust in the universe. It is absolutely seamless!
The future is here! A future without dust, or dusting!
...or I could just dust my room...
This is what happens when you finish a computer game without preparing another to move onto.
In the spirit in the mathematicishness of this dust:
Diameter of the maths cd = 120mm.
Diameter of the hole in the middle of the cd = 15mm.
Area of a circle (which this particular cd happens to be) = pi * diameter.
Area of cd = pi * 120 = ...
Where is my calculator?
Dammit! It was stolen! And I know by who!
Bah!
Computer calculator time.
Area of cd = 377mm2.
Area of the hole (is it possible to find the area of nothing?) = 47.12mm2.
Therefore the area of the maths cd is:
Area of the cd - area of the hole = 329.87mm2.
Therefore there is 329.87mm2 worth of dust stuck to this piece of sticky tape.
And people say that maths is useless. Why, if we were able to calculate the exact amount of dust in the universe using this complicated method, we could then calculate the exact percentage dust makes up in the total amount of matter in the universe. With this figure, we could then create a universe-wide matter destroying device, and program it to destroy a percentage of matter in the universe equal to the percentage of dust in the universe. It is absolutely seamless!
The future is here! A future without dust, or dusting!
...or I could just dust my room...
This is what happens when you finish a computer game without preparing another to move onto.