Stock markets around the world have been plummeting, led by the crash of the Shanghai Stock Exchange. What’s happening, and how will it affect the U.S.?
Does DNA store information in the same way that a computer stores data? Let’s compare the data storage in computers with the genetic code that translates DNA to RNA and amino acids.
The average global land and sea temperatures were higher in July, 2015 than they have been for thousands of years. Exactly how hot was it? And how hot might it get in the future?
This week saw earthquakes in the western Pacific and Gulf of Aden. But why did an earthquake in California make more news than a smaller one in Colorado?
Scientists of WW II developed atomic weapons from plutonium; they wanted peaceful applications. The cleanup of past mistakes and disasters must come first.