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The Salt
2:59 pm
Wed April 17, 2013

Science In A Scoop: Making Liquid Nitrogen Ice Cream

The store uses a patented machine to keep ingredients churning and mix in the liquid nitrogen in a safe, controlled manner.
Alan Greenblatt NPR

Originally published on Thu April 18, 2013 12:14 pm

Robyn Sue Fisher's ice cream shop, Smitten, in San Francisco's Hayes Valley, may at moments resemble a high school chemistry lab, but that's because Fisher uses liquid nitrogen to freeze her product.

Nitrogen is "a natural element," she notes. "It's all around us."

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Around the Nation
2:49 pm
Wed April 17, 2013

'The Hell Of American Day Care': Expensive And 'Mediocre'

iStockphoto.com

In his cover story for the April 29 issue of The New Republic, "The Hell of American Day Care," Jonathan Cohn writes that "trusting your child with someone else is one of the hardest things a parent has to do — and in the U.S., it's harder still, because American day care is a mess. And about 40 percent of children under 5 spend at least part of their week in the care of somebody other than a parent."

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Shots - Health News
2:33 pm
Wed April 17, 2013

As Bird Flu Spreads In China, The Source Remains A Mystery

A vendor weighs a live chicken at the Kowloon City Market in Hong Kong Friday. Health authorities there have stepped up the testing of live poultry from China to include a rapid test for the H7N9 bird virus.
Lam Yik Fei Getty Images

Originally published on Wed April 17, 2013 3:19 pm

The new bird flu in China has come with a long list of questions.

Are the 82 cases reported so far just the tip of a larger outbreak? Why does the virus cause mild symptoms in some people and severe pneumonia in others?

Perhaps the most critical question is also the simplest: How do people catch the bug?

The H7N9 virus clearly infects birds. Health workers have detected it in chickens, ducks and pigeons.

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The Two-Way
1:52 pm
Wed April 17, 2013

U.S. Calls On Venezuela 'To Respect ... Free Speech' Of Its Citizens

A woman walks past a message painted on a wall in the streets of Caracas reading "Fraud. Maduro Illegitimate."
Raul Arboleda AFP/Getty Images

Originally published on Thu April 18, 2013 8:29 pm

The United States called on the Venezuelan government to be transparent in its effort to "audit the ballots" of the presidential election held this weekend.

If you missed it, the news that Hugo Chavez's hand-picked successor Nicolás Maduro had won by a razor-thin margin unleashed protests in the streets of Caracas.

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The Two-Way
1:13 pm
Wed April 17, 2013

Updated: Glitch Delays Antares Rocket Launch

Antares ready for liftoff.
NASA Wallops Flight Facility NASA

Originally published on Wed April 17, 2013 9:06 pm

Update at 6:21 p.m. ET. Launch Delayed:

Space.com reports that the Antares rocket launch has been delayed for two days, "after an unexpected glitch."

Space.com reports:

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