Latest Timothy Liu Stories

A new study found that out of every 25 teens, at least one has "problematic Internet use," and brings in the question: What came first? The chicken or the egg: are teens online because they are depressed or are they depressed because they're spending too much time online?"It's really hard to explain the link," Dr. Aboujaoude, a Stanford researcher and author of the book "Virtually You: The Dangerous Powers of the E-Personality", tells Reuters Health.The answer to the chicken or the...

For the first time, NASA scientists using space-based measurements have directly monitored and measured the complete cycle of water movement for an entire continent. Using satellite data from three Earth-orbiting NASA missions -- Quick Scatterometer (QuikScat), Gravity Recovery and Climate Experiment (Grace), and Tropical Rainfall Measuring Mission (TRMM) -- a science team at NASA's Jet Propulsion Laboratory, Pasadena, Calif., directly observed the seasonal cycling of water into and out of...