Monday, June 19, 2006

Kingdom of the Dragon Pt II


The attention drawn to this site and to GM=tc^3 has been enormous. Another paper is due to be published soon, two years in the making. It will have corroborating evidence from a surprising source that c has been changing, even at low redshifts.
We're at the entrance to Dr. Sun Yat Sen's Memorial. In the distance is TAIPEI 101, the world's tallest building! The top of the spire is 508 m high. There is a huge mall at the base, a great place to spend a hot Summer day. Speaking of hot spots, Taipei has citywide free Wi Fi. A lot of Americans and Europeans don't even know that this exists.
No person (or nation) should rest on her laurels, or someone else will reach higher. Much of my time is spent studying worlds closer to home.
Today's Cassini photo is of the shepherd moon Prometheus. This Saturn moon is potato-shaped with dimensions 145 x 85 x 62 km. Prometheus has the lowest estimated density of any object in the solar system, just 0.27 grams per cc. That's barely 1/4 the density of liquid water. Even if this moon is made of shaved ice, it must be very loosely packed.
The most surprising thing about Prometheus is that it exists at all inside the Roche Limit. This boundary was thought to mark a radius within which liquid objects would be torn apart by tidal forces. Prometheus orbits at 90% of the Roche Limit, inside the Rings! It is surprising that an object with less density than liquid should exist inside the Roche Limit, within which liquid objects should not exist at all. The moon's surface gravity is only 1/77 that of Earth. What is holding Prometheus together?
Look closely at the photo. You will see a narrow stream of materiel passing between F Ring and Prometheus. Instead of falling in a random blizzard, we have ice particles narrowly aligned with Prometheus' major axis. This small moon must have a magnetic field, causing ionised particles to follow field lines. How can shaved ice have a magnetic field?
TOMORROW we'll reach the top of that tower.

8 Comments:

Blogger QUASAR9 said...

Description
Taipei 101 was opened to the public on December 31, 2004.

TAIPEI is mnemonic for Technology, Art, Innovation, People, Environment, and Identity. 101 represents the concept of striving for beyond perfection.

Taipei 101, whose pinnacle reached full height on Oct. 9, 2003, is currently the official world's tallest building in the categories of highest structurally, highest roof, and highest occupied floor. The Sears Tower in Chicago holds the fourth category of overall height.

The multi-use structure will house retail facilities on Levels 1-4; a fitness center on Levels 5-6; offices on Levels 7-84; restaurants on Levels 86-88; observation decks on Levels 89, 91, and 101; and communication facilities on Levels 92-100.

There is a station for the Taipei Mass Rapid Transit (MRT) beneath the building awaiting the eventual construction of the Hsinyi line.

On December 15, 2004, Toshiba installed the world's two fastest elevators. With top speeds of 1010 m/min, observation deck visitors can whiz from Level B1 to 89 in 39 seconds.

A 900-ton tuned mass damper is installed on the 87th floor to counter earthquakes and typhoons. It will be available for public viewing from the restaurant levels and observation deck.

So Anonymous on previous post a friend of yours Louise. lol! Q

10:48 PM  
Anonymous Anonymous said...

"TAIPEI is mnemonic for Technology, Art, Innovation, People, Environment, and Identity. 101 represents the concept of striving for beyond perfection."

Actually, Taipei is the name of the city.

5:33 AM  
Blogger QUASAR9 said...

Anon, and your point?

Paris is the city where the eiffel tower stands. But I'm more interested in Pluto's ring of ice.

9:02 AM  
Anonymous Anonymous said...

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8:29 PM  
Anonymous Anonymous said...

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3:23 AM  
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5:40 PM  
Anonymous Dr. Health said...

Prometheus orbits at 90% of the Roche Limit, inside the Rings!

11:12 PM  

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