Palo Alto Colloquia
November 6, 2014
THE EVOLUTION OF THE REFLECTOR TELESCOPE
Dr. Kenneth Lum
The reflecting astronomical telescope making use of mirrors was invented by Sir Isaac Newton in 1668 as a solution to the problem of chromatic aberration in refracting telescopes that use lenses. Initial versions of reflectors suffered from unreliable mirror making technologies based on metal mirrors and lagged behind the technology of refractors after the invention of the achromatic lens in the mid 18th Century. This changed dramatically in the early 20th Century with the coming of the ability to apply reflective coatings to glass mirrors coupled with better ways to test the accuracy of their surfaces as well as improved mechanical mountings. I will discuss at length about the accomplishments of the people who were most responsible for this change to the dominant telescope technologies developing in the early 20th Century and onwards into the foreseeable future.
Dr. Kenneth Lum is recently retired from the practice of Emergency Medicine. Since high school, he has also been an enthusiastic amateur astronomer, having built two telescopes at the Adler Planetarium in Chicago and a large Newtonian reflector when he reentered amateur astronomy in 1986. He pursued an interest in astronomical photography during the 1990s and continues to study the history of astronomy and astronomical instrumentation.
Dr. Lum is currently interested in ways to enhance the performance of small telescopes with the use of a photomultiplier eyepiece and astronomical video cameras. Since 1994, he has been traveling with the Antique Telescope Society almost annually visiting different historical astronomical observatories.
Nov 13 EDUCATE TO INNOVATE: CREATING INNOVATIVE THINKERS THROUGH SCIENTIFIC EXPLORATION – Ms. Jennifer Gerlach, Valley Christian Schools
Nov 20 PRIVACY AND BIG DATA – Mr. Greg Edwards
Nov 27 NO COLLOQUIUM, Thanksgiving
Note, the following are TENTATIVE ONLY. When the time is closer, I will send out announcements
And information will be posted on the colloquium website(s).
Nov. 6 – Mr. Ken Lum: The Evolution of the Reflector Telescope
Nov. 13 – Ms. Jennifer Gerlach, Valley Christian Schools: EDUCATE TO INNOVATE: CREATING INNOVATIVE THINKERS THROUGH SCIENTIFIC EXPLORATION
Nov. 20 – Mr. Greg Edwards. PRIVACY AND BIG DATA
Nov. 27 – NO COLLOQUIUM, Thanksgiving
Dec. 4 – Dr. Gary Bush, LM/STAR Labs: The Latest on High Speed Rail (Again!!)
Dec. 11 – NO COLLOQUIUM
Dec. 18 – NO COLLOQUIUM
Dec. 25 – NO COLLOQUIUM, Christmas
Jan. 1 – NO COLLOQUIUM, New Years
Jan. 8 – TBD
Jan. 15 – Dr. Michael D. Lepech, Department of Civil and Environmental Engineering, Stanford University: Synthetic Biology
Jan. 22 – Dr. Marco Pavone, Stanford University, Director of the Autonomous Systems Laboratory: Unconventional Robotics
Jan. 29 – Dr. James Lienkaemper, USGS: Seismic Hazard: Creep on Bay Area Faults
Feb. 5 – Mr. Tom Stephany. Solar Eclipse Chasing and Astronomical Tourism
Feb. 12 – Dr. Brad Aagaard, US Geological Survey. Assessing Ground Shaking for the 2014 M6.0 South Napa Earthquake
Feb. 19 – TBD
Feb. 26 – Dr. Blake Simmons, VP at the Joint BioEnergy Institute: Bioenergy Technology
If you have any comments or suggestions for speakers, please call Dr. Gary Bush at (650) 424-2267 or Dr. Stuart McHugh at (650) 424-2561.
To sign up for our mailing list, contact firstname.lastname@example.org