Talk of The Nation

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JENNIFER LUDDEN, HOST:

This is TALK OF THE NATION. I'm Jennifer Ludden, in Washington. Population in America's big cities is surging, and more people are choosing to live alone. But where? As the demand for housing rises, some renters are opting to downsize their belongings and move to smaller spaces - much smaller. Imagine a single room no larger than many American closets and a community kitchen shared with multiple residents.

Transcript

JENNIFER LUDDEN, HOST:

This is TALK OF THE NATION. I'm Jennifer Ludden in Washington. Neal Conan is away. Non-unionized fast food workers walked off the job in Milwaukee last week, demanding, among other things, a raise to $15 an hour. Their actions follow those of workers in four other cities this spring, part of what some are calling the new face of the labor movement, that is collective action outside of traditional union membership.

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JENNIFER LUDDEN, HOST:

Generations of physicists have claimed that time is an illusion. But not all agree. In his book Time Reborn: From the Crisis in Physics to the Future of the Universe, theoretical physicist Lee Smolin argues that time exists--and he says time is key to understanding the evolution of the universe.

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IRA FLATOW, HOST:

This is SCIENCE FRIDAY, I'm Ira Flatow. This week, scientists at the Oregon Health and Science University, OHSU, announced a breakthrough in cloning of a human embryo. They took adult cells, put the cells into specially prepared human eggs and created genetically identical embryos. It's something lots of stem cell researchers have been trying to do for years without success.