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Saturday, May 14, 2016

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Gluten-Free Diets May Be Risky for Kids

Putting kids on gluten-free diets even if they don't have celiac disease or a wheat allergy may carry more risks than benefits, experts warned. In recent years, gluten-free diets have become increasingly popular. A 2015 survey found that 25 percent of Americans said they consume some gluten-free foods, up from just 8 percent in 2013, according to the market research company Mintel Group.

Docs Retrieve Misfit Shine from Girl's Stomach — Device Still Works

A 13-year-old girl swallowed her Misfit Shine activity tracker while swimming, but the gadget still worked after doctors retrieved it from her stomach, according to a new report of the case. At the hospital, an X-ray showed the device was in her stomach. The physicians became concerned the device might come apart, exposing the internal lithium battery, which could damage the girl's stomach or intestines.

Why Texting Isn't Like Other Kinds of Distracted Driving

A "sixth sense" may protect drivers when they're a bit distracted behind the wheel — but not if they're texting while driving, a new study finds. The work was led by researchers at the University of Houston and the Texas A&M Transportation Institute, and was funded in part by the Toyota Class Action Settlement Safety Research and Education Program. Normally, "the driver's mind can wander, and his or her feelings may boil, but a sixth sense keeps a person safe, at least in terms of [avoiding] veering off course," Ioannis Pavlidis, a professor of computer science at the University of Houston and the lead author of the study, said in a statement.

Scarred, Sunken Mastodon Hints at Earlier Human Arrival in Americas

Nearly 15,000 years ago, early humans gathered by a small pond in what is now Florida, near Tallahassee. A team of scientists recently investigated the artifacts in their underwater resting place, known as the Page-Ladson archaeological site. For decades, many archaeologists staunchly affirmed that humans settled in the Americas no earlier than 13,200 years ago.

The Truth Is Out There: Do Area 51 Files Hold Secrets of UFOs?

In her race to secure the Democratic nomination for president, Hillary Clinton has recently drawn support from an unusual voter base — alien enthusiasts. First in a radio interview, then again on "Jimmy Kimmel Live," Clinton expressed interest in making public files about UFOs and the mysterious Nevada site called Area 51. If there's nothing there, let's tell people there's nothing there," said Clinton, speaking with Kimmel.

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Friday, May 13, 2016

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Mystery of Bizarre Radar Echoes Solved, 50 Years Later

More than 50 years after weird radio echoes were detected coming from Earth's upper atmosphere, two scientists say they've pinpointed the culprit. In 1962, after the Jicamarca Radio Observatory was built near Lima, Peru, some unexplainable phenomenon was reflecting the radio waves broadcast by the observatory back to the ground to be picked up by its detectors. "As soon as they turned this radar on, they saw this thing," study researcher Meers Oppenheim, of the Center for Space Physics at Boston University, said, referring to the anomalous echo.

Big Test Pushes Elon Musk's Futuristic 'Hyperloop' Closer to Reality

A futuristic transportation concept known as the "Hyperloop" is undergoing the first public test today of one of its key components — an important milestone for the pioneering system first envisioned by SpaceX and Tesla founder Elon Musk. A startup known as Hyperloop One (formerly known as Hyperloop Technologies) is conducting a test of the Hyperloop system's electric motor in the Nevada desert, running it at speeds of up to 300 mph (483 km/h), the company said. The test is meant to signal the start of work on an actual Hyperloop transportation system, which was proposed by Musk in 2013.

High-Tech Bottle Keeps Opened Wine Fresh for Weeks

Now, a company called Kuvée has designed a device that it says can keep wine fresh for up to 30 days, and perhaps even longer. Kuvée (pronounced "koo-vay,"after the French word for a special allotment of wine) has created a bottle that can help wine stay fresh, by keeping air out, according to the company. When the capsule is inserted into the Kuvée bottle, it looks and feels much like a standard wine bottle.

Power Up! Exosuit Helps You Lift Heavy Loads

"The goal wasn't to create a system to give someone superstrength, but rather to provide small levels of assistance during walking over a long period of time, with the goal of reducing fatigue and the risk of injury," said study senior researcher Conor Walsh, a professor at the John A. Paulson School of Engineering and Applied Sciences at Harvard University in Massachusetts. All rights reserved.

Storing babies' blood samples pits privacy versus science

INDIANAPOLIS (AP) — Two-day-old Ellie Bailey squirms in a hospital bassinet and cries as her tiny left heel is squeezed and then pricked with a needle to draw a blood sample. An Indianapolis hospital technician quickly saturates six circles on a special filter card with the child's blood.

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Thursday, May 12, 2016

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SpaceX Dragon returns to Earth with precious science load

CAPE CANAVERAL, Fla. (AP) — A SpaceX capsule returned to Earth on Wednesday with precious science samples from NASA's one-year space station resident.

'Hyperloop' sled speeds through U.S. desert via electromagnets

By Rory Carroll NORTH LAS VEGAS, Nev. (Reuters) - A car-sized sled powered by electromagnets rocketed to more than 100 miles (160 kph) an hour through the Nevada desert on Wednesday in what the Los Angeles company developing the technology said was the first successful test of a futurist transit system called hyperloop. Hyperloop One is among several companies competing to bring to life a technical vision by Elon Musk, the founder of rocket maker SpaceX and electric car company Tesla Motors, who suggested sending pods holding passengers and cargo inside giant vacuum tubes between Los Angeles and San Francisco.

Atmosphere of Early Earth May Have Been Half As Thick As Today

Bubbles in ancient Australian lava reveal that the early Earth's atmosphere might have been half as thick as it is today, scientists say. The findings contradict the decades-long belief that Earth's early atmosphere was thick and, if confirmed, would expand the list of the types of planets capable of supporting life, the researchers said in a new study. Even so, other Earth scientists say the claim is sure to be controversial.

Nobody Saw This Volcano Erupt … Except NASA's Satellites

For the first time in 60 years, Mount Sourabaya erupted with a spectacular show of fiery lava — in fact, it erupted twice. Volcanic eruptions in far-flung places, such as the South Atlantic, used to go unnoticed. "Today, scientists can pick up signatures of events occurring far from any human observers," NASA's Earth Observatory said in a statement.

Are We Alone? Scientists Discuss the Search for Life and Odds of E.T.

What are the odds that alien life exists elsewhere in the universe? In 1961, astronomer Frank Drake wrote an equation to quantify the likelihood of finding a technologically advanced civilization elsewhere in the universe. The so-called Drake equation took into account factors such as the fraction of stars with planets around them and the fraction of those planets that would be hospitable to life.

Mysterious South American Mounds Are Made of Worm Poop

Large, mysterious mounds of soil found in the tropical grasslands of Los Llanos in South America finally have a scientific explanation: giant worms.

Nefertiti Still Missing: King Tut's Tomb Shows No Hidden Chambers

Radar scans conducted by a National Geographic team have found that there are no hidden chambers in Tutankhamun's tomb, disproving a claim that the secret grave of Queen Nefertiti lurks behind the walls. "If we had a void, we should have a strong reflection," Dean Goodman, a geophysicist at GPR-Slice software told National Geographic News, which published a feature on the research. Live Science contacted Goodman about the research.

Starfish Baby Boom Brings Hope to Population Turning to Goo

For the past two years, a mysterious wasting disease has devastated starfish living along the West Coast, turning countless individual animals into goo. The Oregon coast currently has a thriving community of juvenile starfish (or sea stars), with some places seeing populations with as many as 300 times the typical number, researchers said. The high starfish numbers don't mean the deadly disease is gone, however, the researchers said.

Memory Eraser: This Trick Helps You Forget

For example, if you wanted to forget the details of a conversation you just had, "you could push out of your mind a song playing in the background, or thoughts related to a scene happening outside your window or something like that," said study co-author Jeremy Manning, an assistant professor of psychological and brain sciences at Dartmouth College in New Hampshire. Although the researchers did not examine the details of the strategies people in the study employed to mentally push out certain thoughts, researchers have previously suggested two main strategies that might help in this process, Manning said. "If you don't want to think of the color blue, you think of green things instead, or red," Manning told Live Science.

Autism Risk Linked to High Folate Levels in Pregnancy

Pregnant women who get too much folic acid may be more likely to have a child with autism, a new study suggests. The researchers found that new mothers in the study who had very high levels of folate in their blood (greater than 59 nanomoles per liter) shortly after giving birth were twice as likely to have a child who developed an autism spectrum disorder (ASD)than new mothers who had normal levels (less than 59 nm/L) of this vitamin, according to the study. The findings will be presented Friday (May 13)at the 2016 International Meeting for Autism Research in Baltimore.

Big Gulp: Man Swallows Cellphone, Needs Surgery

A man in Ireland swallowed an entire cellphone that became lodged in his stomach and was tricky to remove, according to a new report of the case. The 29-year-old man was a prisoner who was brought to the emergency room after he claimed to have swallowed a cellphone earlier that day. X-rays showed the cellphone was in the man's stomach.

Shrinking Arctic bird suffers double hit from global warming: study

By Alister Doyle OSLO (Reuters) - Red knots, a type of bird that makes one of the longest annual migrations, are shrinking because climate change in their Arctic nesting grounds makes life harder during their winters in Africa, scientists say. Snows in Arctic Russia now melt earlier in spring and many red knot chicks hatch too late for the annual peak of insect food spurred by the thaw, according to their report on Thursday, one of the first to link the impact of warming to a single species. Eighty percent of the birds born in Russia with long beaks survived to adulthood against just 40 percent of the short-beaked red knots, which end up eating roots of sea grasses in Africa that are less nutritious than shellfish, the study found.

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