making and preparing laser mounts for Friday (V and ols)
Sm -> Nd
La -> Hf
Rb -> Sr
Bulk silicate Earth
Calorimetry
Chinese harvest festival
Homework
Rangers at Devils

lab

polishing, erasing melt inclusions

back to the classroom

C.G. - math review, differential equations
C.G. - thermodynamics intro, zeroth law (no perpetual motion), 1/2 law (if you squish something it gets small)

I.G, intro to standard eqn w/ 87Rb->87Sr
87Sr = 87Sr(intial) + 87Sr * (e^(lt)-1)
86Sr = 86Sr(intial) + 86Sr * e^(-lt)

used to determine age of solar system and last geologic activity on Mars


I.C. resonance, Lewis structures, bond angles, electronegativity, electron affinity