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Contact:

I'm LinkedIn and Google-Plussed.

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.

Take a Nebula, Condense and Stir

Space age research shows that the Solar System’s members are all cousins. They started with the same ingredients in the same nebula, and underwent related processes.

Their mass, and how hot they got inside, govern which processes each object underwent, making them the way they are today. So my graph plots mass versus how hot they got, arraying characteristics that are all talking about the same things.

Some of the old categories are distinguishable, and some are not. Comets (retaining original ices) all plot left of “the water’s edge”. Meteorites are all the small things at the bottom. Stars shine at top right.

But “planets” includes some objects that are physically like brown-dwarf almost-stars, other objects that are like the 7 big moons, and one object scarcely distinguishable from comets. “Asteroids” now have known borderline-cases with comets, meteoroids, and moons; planetologists have long suspected that small moons are captured asteroids and comets, and not original equipment.

Tectonics, subduction, and volcanism only occur on a few differentiated objects. These processes require a rigid (solid, cooled) surface, overlying a warm, fluid interior. On my graph, these conditions occupy a small zone: the smaller planets, and larger moons and asteroids.
Everything above that zone (more massive) has stayed fluid through the present, so they have no crust on which to show tectonics, subduction, or volcanism.
Everything below that zone (less massive) is so small it lost heat almost as fast as it gained heat, and probably never melted, differentiated, and formed a solid crust over a liquid mantle.
Everything left of that zone (colder) never melted and differentiated, so there was no warm fluid to drive tectonics, subduction, or volcanism.
And no object lies right of that zone because anything that hot is so massive that it plots higher on the graph.

excerpt from What Your Astronomy Textbook Won't Tell You, pp 68-70.

Image: 
Take a Nebula, Condense and Stir
The Journal of Irreproducible Results
This Book Warps Space and Time
What Your Astronomy Textbook Won't Tell You

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