Poo as Radiation Shielding...

Bazillionaire Dennis Tito's Inspiration...  ...ed Planet has got 99 problems, but radiation from cosmic rays ain't one. Why? Because it's just been...  ...s from exposure to the radiation from cosmic rays . The solution? Line the spacecraft's walls with w...

http://www.neatorama.com/2013/03/02/Poo-as-Radiation-Shielding/