Musicians treasure the small number of Stradivarius violins that were made in the small area of Cremona, Italy in the 17th century. Modern manufacturers have struggled in vain to make instruments that have the same musical qualities. Now a tree-ring dating expert and a climatologist have discovered the secret of the Stradivarius.
Henri...
Ice ages may occur when our Solar System passes through thespiral arms of the Milky Way during our orbit around thecenter of the galaxy. Dr. Nir Shaviv of the University ofToronto has found evidence linking changes in the cosmicrays reaching the Earth and the times that ice ages occurredin the past.
He believes that the cosmic rays come...
A study of North Atlantic ice suggests that the brightening and dimming of the sun may cause a 1,500-year cycle of cooling and warming on parts of the Earth. Researchers have found that a very slight difference in the amount of solar energy reaching the Earth can have a powerful effect on the climate. As ice builds up in lands bordering the...