This is SCIENCE FRIDAY. I'm Flora Lichtman, filling in for Ira Flatow today. If you could count up all the bacteria in your house, how many different species do you think you'd find - 50, a couple hundred? How about thousands, with an S at the end? My next guest had volunteers swab surfaces in their home - pillowcase, the TV screen, the toilet seat - to see what might be living there. And in each of the 40 households, the same spots were swabbed.
Some people can memorize thousands of numbers, the names of dozens of strangers or the precise order of cards in a shuffled deck. Science writer and U.S. Memory Champion Joshua Foer shows how anyone can become a memory virtuoso, including him.
Forensic psychologist Scott Fraser studies how we remember crimes. He describes a deadly shooting and explains how eyewitnesses can create memories that they haven't seen. Why? Because the brain is always trying to fill in the blanks.
Nobel laureate and founder of behavioral economics Daniel Kahneman goes through a series of examples of things we might remember, from vacations to colonoscopies. He explains how our "experiencing selves" and our "remembering selves" perceive happiness differently.
The popular series "Arrested Development" returns this Sunday with 15 new episodes, released all at once. They're coming from Netflix, which earlier this year, released "House of Cards." Online video companies are producing more of their own shows - not just Netflix, Hulu and Yahoo are getting into the act, as well.
Now, Amazon also wants to join, but they're doing things differently, letting viewers help choose the new lineup. Here's what TV critic Eric Deggans thinks of that approach.
Unusually warm ocean temperatures and favorable wind patterns mean the Atlantic is likely to see "an active or extremely active" hurricane season this year, say officials from the National Oceanic and Atmospheric Administration.
The agency expects between seven and 11 hurricanes and as many as 20 named storms during the 2013 season, which runs from June 1 through November.