Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > sci.physics > #558445 > unrolled thread

Why celestial bodies come in different sizes

Back to article view | Back to sci.physics

Contents

  Why celestial bodies come in different sizes Sam Wormley <swormley1@gmail.com> - 2016-03-01 16:44 -0600
    Re: Why celestial bodies come in different sizes jimp@specsol.spam.sux.com - 2016-03-01 23:15 +0000

#558445 — Why celestial bodies come in different sizes

Why celestial bodies come in different sizes
> http://phys.org/news/2016-03-celestial-bodies-sizes.html


> Our solar system contains one massive object—the sun—and many smaller
> planets and asteroids. Now researchers from Duke University in
> Durham, N.C. have proposed a new explanation for the size diversity,
> which is found throughout the universe and is called hierarchy. The
> researchers report their finding in the Journal of Applied Physics,
> from AIP Publishing.
>
> "Since the 1700s scientists have known that gravity causes objects in
> the universe to get bigger, but the phenomenon of growth does not
> explain the hierarchy," said Adrian Bejan, a professor of mechanical
> engineering at Duke University. "To my huge surprise this question
> has been overlooked."
>
> Bejan's specialty is in thermodynamics and he is the author of the
> Constructal Law, which states that natural systems evolve to
> facilitate flow. He had already applied the law of evolution to
> explain the shape of snowflakes, river basins, lungs and even
> airplanes, when a conversation with an undergraduate student prompted
> him to consider how the Constructal Law would manifest itself in the
> cosmos.


-- 

sci.physics is an unmoderated newsgroup dedicated
to the discussion of physics, news from the physics
community, and physics-related social issues.

[toc] | [next] | [standalone]

#558458

Sam Wormley <swormley1@gmail.com> wrote:

A good topic to copy to an astronomy group.

Too bad the good astronomy group is moderated and rejects your commentless
copies of other people's material.


-- 
Jim Pennino

[toc] | [prev] | [standalone]

Back to top | Article view | sci.physics

csiph-web