Apollo 13's radioactive secret

On April 11, 1970, NASA launched the Apollo 13 manned spacecraft with the intention of landing for the third time on the Moon. Halfway, during the second day of travel, an oxygen tank of the spacecraft burst and destroyed a couple of modules. The three crew members struggled to survive...

When penguins pooh

In December 2003, the scientific journal Polar Biology (Springer) published an article entitled Pressures produced when penguins pooh—calculations on avian defaecation. Why Dr. Meyer-Rochow and Dr. Gál, the authors of the paper, decided to devote part of their lives to research on penguin guano is a mystery. However, their other...

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