Uncertainty Principle applies to dual slit- of you take the example of a single slit, the smaller 
the slit is (position more accurately known), the more spread the diffraction pattern becomes
so the vertical component of momentum becomes less certain
Note: when a photon hits the screen, the position is uncertain because it is no longer confined to the slit
	- I dont understand this

delta x * delta p > h/(4*pi)

Semiconductor properties are the direct result of electron waves in solids
A polaroid lets through the component of the light which is polarized in the direction of the polarized axis
	thats why its a continuous intensity change when rotated

Photon action at a distance:if you know two photons have opposite or same polarity, when you measure one,
it collapses the possibility of the other one that went off in the other direction (happens faster than light travels)

Neils Bohr's Copenhagen Interpretation- says its meaningless to speak of properties or existence of quantum
objects before they have been measured
Contrary: EPR(Einstein Podolsky Rosen) photon pairs, since they can't communicate faster than light, they must retain state information
from the interaction
	-Bohr said EPR did it smartly, but it only counts to do it right and says the right way is that its 
	wrong to say they are separate... but this is just saying he's right by going deeper into his own 
	original explanation
	Also the Measurement Problem, there is no non-arbitrary point to say when a measurement has been made
	-When a human detects it? When it affects a certain number of atoms?
Support: Polarity is destroyed by measurement, a stream of vertically polarized photons, after passing through
a horizontal-vertical combiner, will then split 50-50 into a 45,-45 polarizer

Solipsism-belief that "I am the only real thing"
Average distance between earth and sun increases by a few mm each year due to entropy losses
	-? How could it actually get farther out
Ergodic Hypothesis- a system will pass through every possible state given enough time
Poincare Recurrence- return of a thermodynamic system to a previous state

Suggests non-arbitrary measurement point is at any non-reversible process like generating heat

Prigogine:
Strong Mixing- a small change in initial conditions will produce a big difference in future behavior
Weak Stability- having the characteristic of strong mixing
	even a 3 particle system has weak stability

Says that measurements have been made showing the earth's orbital radius increases by a few mm each year due to entropy losses.