Patricia East is a developmental psychologist who began her career working at an OB-GYN clinic in California. Thursday mornings at the clinic were reserved for pregnant teens, and when East arrived the waiting room would be packed with them, chair after chair of pregnant adolescents.
It was in this waiting room, East explains, that she discovered her life's work — an accidental discovery that emerged from the small talk that staff at the clinic had with their young clients as they walked them back for checkups.
Virgin Galactic's SpaceShipTwo — designed to carry paying passengers beyond Earth's atmosphere — passed a key test Monday, shooting past the speed of sound under its own rocket power.
The spacecraft developed by Sir Richard Branson's space tourism venture dropped from its mother ship over the Mojave Desert and then, for the first time, fired its engine. It hit Mach 1.2 and reached an altitude of 56,000 feet before gliding to a landing.
A team of physicists at Grenoble University in France discovered that trees make different sounds when they are starved for water versus when they are simply thirsty. We hear from Dr. Alexandre Ponomarenko, the lead researcher, and hear a bit of the thirsty tree sounds.
A comment I heard more than once at a recent event in New York to celebrate the life of Oliver Sacks, who turns 80 this year, is that it isn't Sacks' patients who are particularly interesting; it is the interest that Sacks brings to them that makes them special. He has good eyes.
The U.S. Navy is planning to ramp up training activities off California and Hawaii. But that has rekindled a battle over Navy sonar, which is known to harm marine mammals. From member station KQED, Lauren Sommer reports.
LAUREN SOMMER, BYLINE: We humans are visual creatures and for good reason. If someone is far away, you can usually see them before you hear them. Underwater, it's the opposite.
BRANDON SOUTHALL: The physical environment of the ocean really favors the use of sound, and the animals have evolved accordingly.
Originally published on Tue April 30, 2013 10:54 am
When we first heard about researchers using tiny freely floating tools to grab tissue samples deep inside the body, we were scared.
But our fears quickly turned to fascination.
Johns Hopkins engineers are testing out what they call "untethered microgrippers" as a better way to investigate hard-to-reach places. They have launched hundreds of these things, which look like miniature ninja throwing stars, inside the body of animal to retrieve tiny pieces of tissue for biopsies.