In class, we are learning about Newton's laws regarding motion. One particular law that has to do with the modern day world is the first law, which states that an object in motion stays in motion unless disturbed by an outside force. For instance, trains go along a rail. The friction between the rail and train car slow the train down. If the train is not going fast enough, the rail will cause enough friction to stop the train's motion completely. So, now in Japan, there are special Maglev trains. These trains do not touch a rail, thus reducing the friction and allowing it to go much faster. Instead, the train hovers. Well, Maglev is short for magnetic levitation. The bottom of the train and the track have the same magnetic poles, which pushes the train upwards. This shows how just one hundred years ago, trains were brand new and now they hover. The new technology is definately useful.
No comments:
Post a Comment