All-female crew in water-tank spaceflight study

This week 20 women are tucking themselves in a waterbed for five days as part of a dry immersion study to recreate some of the effects of spaceflight on the body. The campaign kicked off yesterday with the first two subjects ...

Rising pension age will cut volunteering

Every year about 6 million Australian volunteers chip in more than 500 million hours of unpaid labor but raising the retirement age will reduce people's ability to contribute their free time and efforts, a Flinders University ...

Walking efficiently takes next to no thought

Whether walking beside a lake or clambering a mountain, people adjust their strides to use the least energy possible. "People are continuously sensing their energy expenditure and adapting their gait to minimize costs," says ...

Can AI make democracy fairer?

Democracy in ancient Athens looked quite different from democracies today. Instead of elections, most offices—including those in the legislature, governing councils, and magistrates—were filled by citizen volunteers, ...

Helping baby toads is their labor of love

As baby toad season winds down in the Roxborough area of Philadelphia, volunteers are still busy helping the frenetic little critters make it alive across Port Royal Avenue.

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