May 3, 2017, 3:30 p.m.
Building 34, Room W150 -
PLEASE NOTE CHANGE OF LOCATION DUE TO RENOVATION OF
BUILDING 3 AUDITORIUM
U.S. GEOLOGICAL SURVEY
"Color and Light in Nature:
Seeing the Sky with the Naked Eye"
What is a rainbow? How many
are there? Why is the sky blue? Why is the setting sun red and
flattened? What is a mirage? Why are there rays or spokes coming
from the setting sun? What is the green flash? Can it be
photographed? Why does the moon look so big on the horizon? Why
do stars twinkle? What is an aurora borealis? Is it really
darkest before dawn? Why are wet spots dark? What is that ring
around the Sun? Why can water appear so many different colors?
These and dozens of other questions about naturally occurring
optical effects are explained with pictures and diagrams, along
with tips on how to see and photograph them.
About the Speaker:
David Knight Lynch received a B.S. in Astrophysics in 1969 from
Indiana University and a Ph.D. in Astronomy in 1975 from the
University of Texas in Austin. He specializes in infrared
spectroscopy of comets, novae, supernovae, young stars and very
old stars. Dave also works in the field of optics in nature
(rainbows, mirages, etc.) and geologic mapping. Dave has held
research positions at the University of Texas, Sacramento Peak
Observatory, Caltech, UC/Berkeley, Hughes Research Laboratories
and The Aerospace Corporation. He has published over 160
scientific papers and 10 books. He has organized 12
international scientific meetings. He is currently with the
United States Geological Survey (USGS) in Pasadena, where he
studies the San Andreas Fault.
Return to Schedule