Steve Jobs’ Vision of the World
Transcription:
“When you grow up you tend to get told the world is the way it is and you’re life is just to live your life inside the world. Try not to bash into the walls too much. Try to have a nice family, have fun, save a little money.
That’s a very limited life. Life can be much broader once you discover one simple fact: Everything around you that you call life was made up by people that were no smarter than you and you can change it, you can influence it, you can build your own things that other people can use.
Once you learn that, you’ll never be the same again.”
This is a gyroscope, and it has too many uses.
The main use is to provide orientation.
The crucial element of the gyroscope that makes it useful for determining orientation is that it is a spinning top isolated from the rest of the world. In this way its Angular Momentum does not change. The Angular momentum appears when something starts spinning around an axis, it is a force. An example of that, is when an ice skater is spinning, if the ice skater open their arms their rotation speeds decrease, and the opposite happens when the skater bring their arms close to their body and thus angular momentum increases.
This video explains better the gyroscope works, and after see that, you can get an idea about how it works. Then, you can see the Steve Jobs video introducing a 6-axis gyroscope for the iPhone 4.
