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Mail and packages, use maildrop:
Norman Sperling
2625 Alcatraz Avenue #235
Berkeley, CA 94705-2702

cellphone 650 - 200 - 9211
eMail normsperling [at] gmail.com

Norm Sperling’s Great Science Trek: 2014

San Luis Obispo
Santa Barbara
Palm Springs
Death Valley
Tucson
El Paso
Corpus Christi
Baton Rouge
Tampa
Everglades
Key West
Winter Star Party, Scout Key
Miami

MARCH 2014:
up the Eastern seaboard
mid-South

APRIL 2014:
near I-40, I-30, and I-20 westbound

MAY 2014:
near US-101 northbound
May 17-18: Maker Faire, San Mateo
May 23-26: BayCon, Santa Clara

California till midJune

JUNE 2014:
Pacific Northwest

JULY 2014:
Western Canada, eastbound

AUGUST 2014:
near the US/Can border, westbound
August 22-on: UC Berkeley

Speaking engagements welcome!
2014 and 2015 itineraries will probably cross several times.

Going, Going, Gone

© Norman Sperling, December 12, 2011

The total lunar eclipse on December 10th gave me an experience I have only had once before, even though this was not an especially dark eclipse as seen from the Pacific and Asia.

On December 30, 1963, the eclipsed Moon practically disappeared. From the roof of my apartment house in Silver Spring, Maryland, I could see stars as dim as 5th magnitude, but the Moon turned that dark, and I had trouble spotting it with my naked eye. Through the telescope the Moon was a dark and featureless grey-blue disc.

I watched the December 10, 2011, eclipse from San Mateo, California, through a slightly hazy sky. While most of the Moon looked pretty dark about 6:20 AM, the southern fringe was quite noticeably bright. The northern edge was almost invisible, and the area in between graduated in dull reds. Within a few minutes, the lighting pattern changed quite noticeably (in total lunar eclipses, the tints always change every few minutes), with the Moon fading appreciably in the gathering dawn. The sky didn't look all that bright, but the Moon was now so dim that it was harder and harder to notice much about it. By 6:37, only the slightly-bright lower-left edge could still be found, fading like the grin of a Cheshire cat. By 6:42, I couldn't even see that any more. The sky was brightening so much that the Moon was no longer visible with the unaided eye. The Full Moon disappeared from me again!

The Journal of Irreproducible Results
This Book Warps Space and Time
What Your Astronomy Textbook Won't Tell You

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