A Listing of Projects

I Sound
The Cat's Meow
	how does hearing work? If we scale a human down does a cat's meow sound 		
	different? How does the meow sound if we scale the cat up?


Tuning the guitar.

II Chemical Reactions
Scale in chemical reactions
	
	Why does a referigerator keep food from spoiling?
		How does the speed of a chemical reaction scale with temperature?
Chemical Chaos

Making a real Fractal Object
	electroplating 
		current, time and total charge
		conservation of charge
		conservation of chemical species
		number of atoms plated
	determination of fractal dimension

III Fluid Flow, Chaos and all That
The Dripping Faucet and other Problems with Liquid Flow.
	chaos, angular momentum conservation
		The Dripping Faucet, R. Shaw Q172.5 c45 s53x 1984

	Turbulence:
		Big whorls have little whorls,
		Which feed on their velocity;
		And little whorls have lesser
			whorls,
		And so on to viscosity.
			Lewis Fry Richardson, 1922

The Rope in the River
	Reynolds number and the force on an object. 		
	How does that force scale with the speed of the water?

IV The Predator Prey Problem
Population
The Fishery
	A predator - prey problem, but the predator is man!

V Work and Energy

Work and Energy
Friction
The Skidding Car and Truck
	how stopping scales with mass.
How high can an animal jump? - scaling jump height

VI
Strength of a Beam; Strength of a Bone

How large a plank is needed to cross a stream without getting wet?

The Car crash over the cliff. 
	A problem in strength of materials
	
What is the Linear Dimension (linear height) of a Cliff?
	Fractals again.

VII
Geometrical Design 
 Symmetry and invariance