Following the earthquake and tsunami in Japan, we discuss what is causing problems at the nuclear reactors in Fukushima. Explains the relevance of hydrogen, iodine, boron and zirconium.
The evolution of the peppered moth over the last two hundred years has been studied in detail. Originally, the vast majority of peppered moths had light colouration, which effectively camouflaged them against the light-coloured trees and lichens which they rested upon. However, because of widespread pollution during the Industrial Revolution in England, many of the lichens died out, and the trees that peppered moths rested on became blackened by soot, causing most of the light-coloured moths, or typica, to die off from predation. At the same time, the dark-coloured, or melanic, moths, carbonaria, flourished because of their ability to hide on the darkened trees.
Vid Description:"This scene from PBS's NOVA program, Episode "Einstein's Big Idea," demonstrates Albert Einstein's use of "thought experiments" to help visualize complex ideas at the forefront of science. This scene also shows Einstein as a young, passionate visionary, rather than as the stale, gray old man he is universally known as today."
Students wanted to see the whole movie...please let me know if you come across it.
"http://yt.cl.nr/XxKIa6Zr1NQ"
Senior Research Associate at Harvard Project Zero, Ron Ritchhart shares his thoughts on the importance of creating a culture of thinking in classrooms and schools
