Harry Kroto 2004

P = E 3

P = E E = Eocos2πωt 4

P = E E = Eocos2πωt P = Eocos2πωt 5

Harry Kroto 2004

this shows a Hertz osci http://en. wikipedia. org/wiki/File:Dipole this shows a Hertz osci http://en.wikipedia.org/wiki/File:Dipole.gif -oli Harry Kroto 2004 7

http://www.ccpo.odu.edu/~lizsmith/SEES/ozone/class/Chap_4/index.htm

P = α E Total polarisability

P = α E Total polarisability α = αo + (∂α/∂q)q Molecular polarisability - function of coordinate

P = α E Total polarisability α = αo + (∂α/∂q)q Molecular polarisability - function of coordinate E = Eo cos 2πωet Electric Field radiation frequency ωe

P = α E Total polarisability α = αo + (∂α/∂q)q Molecular polarisability - function of coordinate E = Eo cos 2πωet Electric Field radiation frequency ωe q = qo cos 2πωqt coordinate of the molecular motion ωq

P = α E Total polarisability α = αo + (∂α/∂q)q Molecular polarisability - function of coordinate E = Eo cos 2πωet Electric Field radiation frequency ωe q = qo cos 2πωqt coordinate of the molecular motion ωq P = [αo + (∂α/∂q) q] E

P = α E Total polarisability α = αo + (∂α/∂q)q Molecular polarisability - function of coordinate E = Eo cos 2πωet Electric Field radiation frequency ωe q = qo cos 2πωqt coordinate of the molecular motion ωq P = [αo + (∂α/∂q) q] E P = [αo + (∂α/∂q) q] Eo cos 2πωet

P = α E Total polarisability α = αo + (∂α/∂q)q Molecular polarisability - function of coordinate E = Eo cos 2πωet Electric Field radiation frequency ωe q = qo cos 2πωqt coordinate of the molecular motion ωq P = [αo + (∂α/∂q) q] E P = [αo + (∂α/∂q) q] Eo cos 2πωet P = [αo + (∂α/∂q) qo cos 2πωqt] Eo cos 2πωet

P = α E Total polarisability α = αo + (∂α/∂q)q Molecular polarisability - function of coordinate E = Eo cos 2πωet Electric Field radiation frequency ωe q = qo cos 2πωqt coordinate of the molecular motion ωq P = [αo + (∂α/∂q) q] E P = [αo + (∂α/∂q) q] Eo cos 2πωet P = [αo + (∂α/∂q) qo cos 2πωqt] Eo cos 2πωet P = αo Eo cos 2πωet + (∂α/∂q) qo Eocos 2πωqt cos 2πωet

P = α E Total polarisability α = αo + (∂α/∂q)q Molecular polarisability - function of coordinate E = Eo cos 2πωet Electric Field radiation frequency ωe q = qo cos 2πωqt coordinate of the molecular motion ωq P = [αo + (∂α/∂q) q] E P = [αo + (∂α/∂q) q] Eo cos 2πωet P = [αo + (∂α/∂q) qo cos 2πωqt] Eo cos 2πωet P = αo Eo cos 2πωet + (∂α/∂q) qo Eocos 2πωqt cos 2πωet P = αo Eo cos 2πωet + ½(∂α/∂q) qo Eo[cos 2π(ωe+ ωq)t + cos 2π(ωe- ωq)t]

P = E E = Eocos2πωt P = Eocos2πωt 19

P = E E = Eocos2πωt P = Eocos2πωt 21

P = E E = Eocosωt P = Eocosωt

Attenuation due to scattering by interstellar gas and dust clouds Harry Kroto 2004

Harry Kroto 2004

Harry Kroto 2004

P =  E

P =  E

P =  E

P =  E

Bill Madden 559 2123