When climate scientist James Hansen spoke up about climate change in the 1980s, he risked the loss of his job & reputation. But, he says, it was worth it — because he could not be silent about something so important.
Trained as a neuroscientist, Eric Haseltine is always asking questions. He's identified four concepts that lead to scientific breakthrough. One of them: acknowledging we're not the center of the universe.
Doctors told Jennifer Brea that her symptoms were psychosomatic, so she filmed herself and turned to the Internet for guidance. She describes how her online community helped her find the right diagnosis.
Computer scientist Avi Rubin says all our smart devices — cars, phones, even fitness trackers — can be hacked. He warns that our network of connected technology puts us at increased risk for cyberattacks.