Here’s a video summary of my sabbatical travels touring U.S. astronomical observatories. It is entirely inadequate to capture the depth and richness of the experience, but it will give you a taste with some pretty pictures and peppy music (from http://www.bensound.com).
The review presentation
I presented this with a review of the whole experience, or bits and pieces of the whole experience, for the congregation after worship on Sunday, December 9, 2018. We also video recorded that presentation, including this. It’s under an hour long, and you can see that here:
Here is a map of my sabbatical journeys. It includes the trip to Green Bank, the New England swing, and the Grand Tour in chunks. The paths are approximate, especially on the Grand Tour, as they are here driving routes, and I took the train. Also, I didn’t put the exact addresses of the places I stayed. But you’ll get the idea. I think if you click on the box in the top left of the map header you’ll get the legend. Then if you want, you can turn off the driving routes, which will make it easier to see the places I visited. There are several light blue pins marking places I thought I might get to but ended up not going. This time. I worked out a rough estimate that I traveled over 8000 miles in a little over two months.
I can’t tell you how grateful I am for this experience, for the opportunity to travel to see these amazing astronomical instruments, and for the people who made it possible, namely my congregation at Catoctin Presbyterian Church, my family, and my wife Molly. I am grateful to the church for the financial means to go and for the spiritual support to send me. I am grateful to Molly for her encouragement and for her taking over many of the duties I left as I went. I am grateful to God for the privilege of this journey and for these beloved people in my life.
As my sabbatical is drawing to an end I plan still to keep writing about my experiences. I’m still processing the whole thing, what happened, what didn’t happen, what I learned and didn’t learn, what it all means. So stay tuned.
I’ve been keeping up better with recording my journey with my photos, which are now living at my Google account since I have an Android phone. Say what you will about the evil digital empires, it is convenient.
Any way, going way back to Louisiana and the LIGO facility, you can see my pictures and comments at >this link.<
Short form: >LIGO< stands for Laser Interferometry Gravitational wave Observatory, which consists of two campuses, one in Hanford, WA, and the other in Livingston, LA, where I went. It is an instrument that measures the distortion of spacetime by waves created by the interaction of supermassive bodies like neutron stars and black holes. It is a whole new way of looking at the universe, it is incredibly precise, and it is remarkably expensive. New technology is like that. We don’t know yet what the practical applications of all this will be, but I bet it will be cool.
LIGO Livingston is open to the public one day a month through their educational center. They have a very good collection of interactive displays aimed at kids and novices to help explain the science they do there. The staff are knowledgeable and friendly. Tours don’t really show you much of the actual instrument, as it is pretty inaccessible being encased in evacuated steel tubes surrounded by evacuated concrete tunnels. So you get to see the control room and the outside of the tunnels and a prototype of some of the pieces of the instrument. But somehow, that was adequate for me.
It is mind bending to think about waves in spacetime. They aren’t waves inside space but space itself waving. That means when the waves pass over the earth, the whole planet, your home, your chair, your body are all stretched and squeezed. You don’t notice because the effect is minuscule, but it happens nevertheless.
The universe is a weirder place than you would imagine.