DR.Orbit 1.06
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Free Version
Publisher Description
Demonstration of how a mass (e.g. earth) can orbit around a gravitational well (e.g. sun). Use your finger to push the mass onto a trajectory that results in a stable orbit around the well. Use the options menu to introduce some drag (good to get rid of the mass), to bring up some eye candy or to influence the movement of the mass by tilting your iPad.
Physics background:
Gravitational forces act between masses. In this demonstration a big stationary mass is situated in the center of the screen. Its location is fixed and it is hidden behind a cap. If you put a small mass onto the screen, it begins accelerating towards the big mass until it disappears under the cap "into the drain". You can prevent your mass from going down the drain by giving it an initial push. Try experimenting with the directions of your pushes. If it is done right, the small mass will be falling around the big mass without - in theory - ever disappearing into the drain. But due to the not very accurate numerical methods used for the calculation of the trajectory of the mass, the reality in this demonstration might be different. This also applies to the background grid on the screen: It does not show the correct wraping of space caused by the big mass in the middle of the screen. Its shape is a compromise between aesthetics and numerics.
Link to demonstration video:
http://www.youtube.com/watch?v=pwXI-EiZE4o
Jun 10, 2017
Version 1.06
This app has been updated by Apple to display the Apple Watch app icon.
- support for iOS 9.1
About DR.Orbit
DR.Orbit is a free app for iOS published in the Kids list of apps, part of Education.
The company that develops DR.Orbit is Dr. Daniel Roth. The latest version released by its developer is 1.06.
To install DR.Orbit on your iOS device, just click the green Continue To App button above to start the installation process. The app is listed on our website since 2017-06-10 and was downloaded 2 times. We have already checked if the download link is safe, however for your own protection we recommend that you scan the downloaded app with your antivirus. Your antivirus may detect the DR.Orbit as malware if the download link is broken.
How to install DR.Orbit on your iOS device:
- Click on the Continue To App button on our website. This will redirect you to the App Store.
- Once the DR.Orbit is shown in the iTunes listing of your iOS device, you can start its download and installation. Tap on the GET button to the right of the app to start downloading it.
- If you are not logged-in the iOS appstore app, you'll be prompted for your your Apple ID and/or password.
- After DR.Orbit is downloaded, you'll see an INSTALL button to the right. Tap on it to start the actual installation of the iOS app.
- Once installation is finished you can tap on the OPEN button to start it. Its icon will also be added to your device home screen.
