It has taken longer than previously credited for the kind of people now on earth to rise to become what we know as modern man. Evidence now is that man and his cultures extend beyond two million years into the past. Radioactive dating has given new time determinations for human ancestors and evolution in the dim anthropological past. The latest “clock” or dating method measures the amount of...
CULTURE BEAKER Read Rachel Ehrenberg’s column “In Hollywood, buzz beats star power when it comes to predicting box office take.”
MIND & BRAIN See a video showing a test of a baby’s motor control (right) in “Newborn babies walk the walk.”
EARTH See video of the meteor that struck Russia on February 15 in “Meteor explodes over Russia.”
EARTH IN ACTION...
March 15 Learn about the 1989 “discovery” of cold fusion, later disproved, at a screening of the documentary film The Believers at Fermilab, near Chicago. A discussion with physicists and the directors follows. See bit.ly/SFbelievers
March 16 – 23 Try science activities, help clean up the coast and get teaching ideas at the San Diego Festival of Science and Engineering. See bit.ly/...
View zoomable JPL mapOne building houses what has been deemed the NASA Jet Propulsion Laboratory’s “best bathroom.” Another, an atomic clock. And naturally the scientists and engineers at the Pasadena, Calif., lab that built the Curiosity rover have a Mars Yard that simulates the surface of the Red Planet, complete with rocks and sand.
Luke Johnson (right), a graphic...
Letters to the Editor
Scrutinizing baseball’s streaks My family owned the Oakland A’s, formerly the Kansas City Athletics, from 1960 to 1980. During this period, our team won three consecutive World Series (1972 – 74) and five consecutive division titles (1971 – 75). I personally witnessed that one player would be on a streak and his attitude appeared to raise his teammates’ spirits “Hitting streaks may be...