This is a remote controlled plane made from pieces of garbage. It really flies too.
Why don't school science classes have students designing some of these?
Watch the following video and pay attention to the tone of the pilot.
Imagine you were a passenger sitting on the rear left window seat and saw the puffing flame from the left engine. What would you do?
We were unable to hear the messages the pilot would have given to the passengers. But if you were the pilot, why you could be calm and what would you do?
Here are two talks from TED on aging. The first one predicts that at a certain point in the future when science is able to repair the damages due to metabolism faster than the generation of these damages, human can live as long as s/he likes.
The second talk looks at areas in the world where there are exceptionally many people over 100 years old. In particular, draws out the nine basic characteristics in these "blue zones" to give us a hint of how we can live longer.