Smart cities could look very different from today’s urban centers. Streetlights could be communicating with bus stops, and subway trains could be solar powered. Population growth will force local government leaders to rethink more than just transportation and housing. As the population increases, the real estate needed to grow the food we eat will become increasingly scarce. Some experts have suggested that a new agricultural approach called vertical farming, also known as urban farming, could solve this problem. In a model that is already being tested in Singapore, crops are grown indoors in tall buildings. The benefits are extensive, the technology is powerful and the results are delicious.
Electric Charge Keeps Bubbles Alive for Hours
by Tracy Staedter
Anyone who has ever made bubbles knows the joy of a big one and the instant disappointment when it pops. A bubble is made of fluid layered between two thin films of soap that eventually succumb to gravity. And it usually happens within seconds.
But there’s a way to make bubbles last much longer, maybe even for hours. Researchers from the University of Lyon in France found that if they trapped a bubble between two platinum electrodes and delivered a charge, the soap flowed upward against gravity. The bubble’s walls became thicker and more stable and even changed colors.
The research gives new insight into the strange world of fluid dynamics and could help improve experiments with lab-on-a-chip technologies…
(read more: Discovery NEWS)
Totally jealous of the dude in the giant bubble.