ScienceDaily: Top Science News

---

• An apple a day keeps the doctor away
• Experts discover whether it's better to be right or be happy
• A roly-poly pika gathers much moss: High-fiber salad bar may help lagomorphs survive climate change
• DNA motor 'walks' along nanotube, transports tiny particle
• Bonobos stay young longer: Unlike humans and chimpanzees, bonobos retain elevated thyroid hormones well into adulthood
• Study: Pay kids to eat fruits, vegetables
• Brain neurons subtract images, use differences
• Hubble watches super star create holiday light show
• Massive stars mark out Milky Way's 'missing arms'
• Global map predicts locations for giant earthquakes

An apple a day keeps the doctor away Posted: 17 Dec 2013 06:05 PM PST Prescribing an apple a day to all adults aged 50 and over would prevent or delay around 8,500 vascular deaths such as heart attacks and strokes every year in the UK -- similar to giving statins to everyone over 50 years who is not already taking them -- according to a study.

Experts discover whether it's better to be right or be happy Posted: 17 Dec 2013 06:05 PM PST Doctors see many couples who lead unnecessarily stressful lives by wanting to be right rather than happy.

A roly-poly pika gathers much moss: High-fiber salad bar may help lagomorphs survive climate change Posted: 17 Dec 2013 02:08 PM PST In some mountain ranges, Earth's warming climate is driving rabbit relatives known as pikas to higher elevations or wiping them out. But biologists discovered that roly-poly pikas living in rockslides near sea level in Oregon can survive hot weather by eating more moss than any other mammal.

DNA motor 'walks' along nanotube, transports tiny particle Posted: 17 Dec 2013 12:53 PM PST Researchers have created a new type of molecular motor made of DNA and demonstrated its potential by using it to transport a nanoparticle along the length of a carbon nanotube.

Bonobos stay young longer: Unlike humans and chimpanzees, bonobos retain elevated thyroid hormones well into adulthood Posted: 17 Dec 2013 09:38 AM PST Despite the fact that chimpanzees and bonobos share similar starting conditions at birth, they develop different behavioral patterns later in life. These differences might be caused by different hormone levels.

Study: Pay kids to eat fruits, vegetables Posted: 17 Dec 2013 07:46 AM PST Researchers observed three schools adjust to new school lunch standards that require a serving of fruits or vegetables on every student's tray -- whether the child intends to eat it or not. Students discarded 70 percent of the extra fruits and vegetables -- wasting about $3.8 million each day.

Brain neurons subtract images, use differences Posted: 17 Dec 2013 07:42 AM PST Ten million bits -- that's the information volume transmitted every second with every quick eye movement from the eye to the cerebrum. Researchers describe the way those data are processed by the primary visual cortex, the entry point for the visual information into the brain. Deploying novel optical imaging methods, they demonstrated that the brain does not always transmit the entire image information. Rather, it uses the differences between current and previously viewed images.

Hubble watches super star create holiday light show Posted: 17 Dec 2013 07:40 AM PST This festive NASA Hubble Space Telescope image resembles a holiday wreath made of sparkling lights. The bright southern hemisphere star RS Puppis, at the center of the image, is swaddled in a gossamer cocoon of reflective dust illuminated by the glittering star. Hubble took a series of photos of light flashes rippling across the nebula in a phenomenon known as a "light echo."

Massive stars mark out Milky Way's 'missing arms' Posted: 17 Dec 2013 05:50 AM PST A 12-year study of massive stars has reaffirmed that our Galaxy has four spiral arms, following years of debate sparked by images taken by NASA's Spitzer Space Telescope that only showed two arms.

Global map predicts locations for giant earthquakes Posted: 12 Dec 2013 07:01 AM PST Researchers have developed a new global map of subduction zones, illustrating which ones are predicted to be capable of generating giant earthquakes and which ones are not.

You are subscribed to email updates from ScienceDaily: Top Science News To stop receiving these emails, you may unsubscribe now.	Email delivery powered by Google
Google Inc., 20 West Kinzie, Chicago IL USA 60610