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Apollo moon rocket engines recovered

A private expedition led by the founder of Amazon.com has successfully raised two massive Apollo Saturn V rocket F-1 engines, which launched astronauts to the moon more than 40 years ago, from the bottom of the Atlantic Ocean.  Jeff Bezos, the online retailer's CEO, said in an update posted Wednesday on the Bezos Expeditions website that his team has seen an underwater wonderland - an incredible sculpture garden of twisted F-1 engines that tells the story of a fiery and violent end, CBS News reported.
When Nasa's mighty Saturn V rockets were launched on missions to Earth orbit and the moon in the late 1960s and early 1970s, the five F-1 engines that powered each of the boosters' first stages dropped into the Atlantic Ocean and sank to the seafloor. There they were expected to remain, discarded forever.  But one year ago, Bezos announced his private - and until then, secret - expedition had located what they believed to be the engines from the 1969 Apollo 11 mission that began the journey to land the first humans on the moon.  In a statement released Wednesday, NASA administrator Charles Bolden recalled how Bezos shared with them his plans to recover F-1 engines nearly one year ago.

Ice from fast food restaurants dirtier than toilet water

Ice from fast food restaurants is dirtier than toilet water, a school science project by a 12-year-old found. Jasmine Roberts collected ice samples from five restaurants in South Florida for her award-winning project - from both self-serve machines inside the restaurant and from drive-thru windows.  She then collected toilet water samples from the same restaurants and tested all of them for bacteria at the University of South Florida.

In several cases, the ice tested positive for E. coli bacteria, which comes from human waste and has been linked to several illness outbreaks across the country, ABC News reported.

“These [bacteria] don’t belong there. It’s not cause for panic, although it is alarming because what she found is nothing new. You’re not more likely to get sick now. But she’s done us a favor by sounding the alarm,” Dr. David Katz, medical contributor to ‘Good Morning America’ said.

Both Roberts and Katz said that the ice is likely dirtier because machines aren’t cleaned and people use unwashed hands to scoop ice.

Sleep helps in learning new tasks

Researchers at University of Chicago have claimed that sleep plays an important role in the brain’s ability to consolidate learning when two new competing tasks are learned in the same day.

The new study, which measured starlings’ ability to recognise new songs, showed that learning a second task could undermine performance of a previously learned task. For the study, the researchers did two experiments using 24 starlings each. When the starlings were allowed to sleep, they showed increases in performance on learning songs, suggesting that sleep consolidation enhances their memory, overcoming the effects of interference. When taught a new song pair after awaking, the birds were still able to remember what they had learned on the previous day, despite the new interference.

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