Wednesday, January 25, 2012
Marble Ramp Challenge
This is the picture of the longest working marble ramp. It is made of straws , coffee stirs, and labels.
Thursday, January 19, 2012
Video Questions
1. How is it possible that an object that feels and looks like cloth can stop a bullet?
• At a molecular level, this cloth which is synthetic is very strong. The appearance of an object can be deceiving because of the way it feels.
2. Why is hydrogen fuel not very efficient? Are there any other options?
• Hydrogen fuel is very hard to process and quite expensive. A tank of gas goes further than a tank of hydrogen fuel.
3. Why are things becoming smaller?
• Making things smaller means more storage. I remember when ipods could only hold 1 GB of memory; no ipod can store over 100 GB!
4. How close are we to getting people invisible?
• We are pretty far away. Right now we can only disguise invisible and it is not very usable and it is not completely invisible. It could be possible in the near future thought.
• At a molecular level, this cloth which is synthetic is very strong. The appearance of an object can be deceiving because of the way it feels.
2. Why is hydrogen fuel not very efficient? Are there any other options?
• Hydrogen fuel is very hard to process and quite expensive. A tank of gas goes further than a tank of hydrogen fuel.
3. Why are things becoming smaller?
• Making things smaller means more storage. I remember when ipods could only hold 1 GB of memory; no ipod can store over 100 GB!
4. How close are we to getting people invisible?
• We are pretty far away. Right now we can only disguise invisible and it is not very usable and it is not completely invisible. It could be possible in the near future thought.
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