Very fun Gravity website

http://www.dgp.toronto.edu/~dragice/gravity/
Put planets in orbits going opposite directions! Watch the fun begin! :-D

Pat

Pat Flannery wrote:
http://www.dgp.toronto.edu/~dragice/gravity/
Put planets in orbits going opposite directions! Watch the fun begin! :-D


I'd like to see a gravity program where you can specify the starting
orbit and mass, and the program figures out how fast the moon has to go
to do that orbit. And then let things evolve.

robert casey wrote:


I'd like to see a gravity program where you can specify the starting
orbit and mass, and the program figures out how fast the moon has to
go to do that orbit. And then let things evolve.


On the one I found it's interesting to get the two biggest spheres into
a nice elliptical orbit, and then have the smallest one interact with
them. Although most of the time it just gets tossed out of the system,
or goes crashing to doom, it can affect the orbits of the big two more
than you'd expect it to given time and enough encounters with them,
despite its low mass.

Pat

Pat Flannery wrote:
robert casey wrote:

I'd like to see a gravity program where you can specify the starting
orbit and mass, and the program figures out how fast the moon has to
go to do that orbit. And then let things evolve.

On the one I found it's interesting to get the two biggest spheres into
a nice elliptical orbit, and then have the smallest one interact with
them. Although most of the time it just gets tossed out of the system,
or goes crashing to doom, it can affect the orbits of the big two more
than you'd expect it to given time and enough encounters with them,
despite its low mass.

Makes one appreciate the complexity of putting something into a stable
orbit.
--
Gene Seibel
Gene & Sue's Aeroplanes - http://pad39a.com/gene/planes.html
Because we fly, we envy no one.

Pat Flannery wrote:
http://www.dgp.toronto.edu/~dragice/gravity/
Put planets in orbits going opposite directions! Watch the fun begin! :-D

Considering Flash is not permited on my computer because of security
reasons, I didn't see anything.

I like more http://burtleburtle.net/bob/physics/eight.html

Raghar wrote:
Pat Flannery wrote:
http://www.dgp.toronto.edu/~dragice/gravity/
Put planets in orbits going opposite directions! Watch the fun begin! :-D

Considering Flash is not permited on my computer because of security
reasons, I didn't see anything.

I like more http://burtleburtle.net/bob/physics/eight.html

I remember more than 10 years ago where I had a nice program simulating
the solar system. In this model you could inject an object into the
solar system and find out what happened. As the object mass and
trajectory could be changed nice effects were found, all from having
simple comet orbits to injecting a new planet or even a new sun into the
system. The best effect I saw was making the old sun being ejected out
of the system by injecting a new sun with a suitable orbit. Anyone
remembering this program and is it available somewhere?

--
th

Raghar wrote:



Considering Flash is not permited on my computer because of security
reasons, I didn't see anything.

I like more http://burtleburtle.net/bob/physics/eight.html



I dub this Solar System "Spyrograph". :-)

Pat