Orbit

It needs precision in the creation of size, trajectory, and velocity.

Just received my copy of the Popular Science magazine. It mentioned this app. It's certainly a neat plaything. I had fun creating particle systems and Lorenz attractors. It would be more fun with default options that could be manipulated (such as default planet system) but I love it :3

I'm not sure this uses the inverse square law: the orbits look strange to me. What's the attractive force here?

When I saw this app being featured in Popular Science, I immediately downloaded abd played it for at least half an hour XD but the app lacks a bit of customisability, such as being able to control the mass, velocity and direction of a body, but other than that I am happy with the app.

Creating one large fixed body and one small moving body should result in an elliptical orbit, and it doesn't.

It is great but it could use more features, like sun / planet textures and an orbit path line.

I was wondering, what if this could be made into an interactive wallpaper?

This is a really great start! Reading the other reviews, I can tell that lots of serious geeks were attracted to this. There complaints and disappointments should be fuel for your continuing on. First off, from an elementary perspective, this simulator shows very well the principles of attraction - from a mathematical, biological and astronomical perspective. Flash your screen over to a projector and kids have an instant lab. We need screen re-centering and mass release (explosion) limit settings.

Just received my copy of the Popular Science magazine. It mentioned this app. It's certainly a neat plaything. I had fun creating particle systems and Lorenz attractors. It would be more fun with default options that could be manipulated (such as default planet system) but I love it :3

Any stationary body makes all other bodies gravitate toward it too quickly, so it is near impossible to create an object orbiting elliptically around a body. Worse though, the phone screen goes to sleep only a few seconds after the simulation begins, and you can't hold a finger on the screen to keep it from switching off because that affects the simulation by adding a body to the space

Almost exactly the same as the old Orbital game for Unix. Very nice.

It is fun for a moment but not at all accurate. A planetary path tracer would be nice but that is not possible because this app does not do actual orbit path but rather a straight line or simi arch behind one of the suns. There is only one density for planets and suns. A binary system does not affect the satellite as a binary would but instead only one sun seems to exist regardless of how many you put on the screen. Fun at first but gets to simple and lame very fast.

Its really good, but it should have planets

It won't download onto my HTC desire

Fun, Educational yet really simple.

Actually kinda cool considering the simplicity of it

Very cool simulator.

Creating one large fixed body and one small moving body should result in an elliptical orbit, and it doesn't.

There should be collisions between the satellites and there should be an easy way to specify the mass of each instantiated object.

Can a feature be added to change point of reference? Relative one moving body. Panning in a specific region?

How do I zoom out?

Please add templates!

Just received my copy of the Popular Science magazine. It mentioned this app. It's certainly a neat plaything. I had fun creating particle systems and Lorenz attractors. It would be more fun with default options that could be manipulated (such as default planet system) but I love it :3

Its a decent thing to toy with. But it gets boring much faster than conventional apps. If it had more features or it had a puzzle, something other than tapping it would be great. But overall its a great app to play around with

Kool way to study orbital dynamics...and kill time! I LOVE the fact that it needs NO extra permissions! To many apps want into your info for no reason. Suggestions for your next update, add in an option for orbital race lines, so you can "see" the path of your "planets". Also a STOP button, to freeze everything.

It would be even better if it had some additional settings, such as ones that allow to randomly create a selected number of particles or show 3d view :) Thank you!

Great as far as it goes, but I would really like to be able to have perfectly elastic collisions as well. As well as the ability to start with preset systems, e.g. solar system.

I love this but it would be cool if you added a zoom in or out function and lines that show the orbits

Would be better if it kept the screen on.

I love this app and found it in pop Sci. I wish there were a way to control the planets size without going into the menu though. An on screen slide would be helpful for it.

Its fun to play with but spawning new bodies takes way too long.

I found this in my Popular Science mag

When I saw this app being featured in Popular Science, I immediately downloaded abd played it for at least half an hour XD but the app lacks a bit of customisability, such as being able to control the mass, velocity and direction of a body, but other than that I am happy with the app.

A fun piece of work showing how you can be creative with code.

I got my isuue of pos I and saw this and immeadetley downloaded it

How do I zoom out?

I read about this app in my popular science magazine and I love it!

I tried it out when I heard about it in Popular Science, and it's pretty cool

This distraction is a lot of fun. I especially appreciate that it requires no special permissions!

Very well made app. Attractive interface. Fun to fiddle with. No ads! It just needs more features! As a physics guy I'd love to be able to do simple customized 2-d gravity experiments on my phone.