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What is a calorie deficit?

Trying to lose weight? You need to be in calorie deficit, and that means eating and drinking fewer calories than you burn. Reducing calorie intake – changing what and how much you eat. Increasing calorie expenditure – in the form of exercise. How does being in a calorie...
WEIGHT LOSS
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World's deepest shipwreck found — a US navy warship sunk in biggest sea battle of WWII

Explorers have discovered the world’s deepest shipwreck after 78 years: a U.S. Navy destroyer escort that sank during World War II’s biggest naval battle. The explorers found the U.S.S. Samuel B. Roberts, nicknamed “Sammy B”, 22,916 feet (6,985 meters) below the surface of the Philippine Sea near Samar, the third largest island of the Philippines. The wreck had snapped in half, and the two pieces lie just 33 feet (10 meters) apart.
MILITARY

What does stretching do to your body?

When it comes to bad exercise habits, not making time to stretch out pre- or post-exercise is top of the list for most of us. But what does stretching do to your body? Can it really make a difference to your recovery?. We combed through the research and spoke to...
WORKOUTS

Does the human body replace itself every 7 years?

There are trillions of cells in your body, but the cells that you have today are not all the exact same cells that you had yesterday. Over time, cells age and become damaged, so your body's cells are constantly replicating, creating their own replacements. This constant cellular activity has sparked...
SCIENCE

Surprise solar storm with 'disruptive potential' slams into Earth

Scientists were recently left scratching their heads after a "potentially disruptive" solar storm smashed into Earth without warning. The surprise solar storm hit Earth just before midnight UTC June 25 and continued throughout most of June 26, according to Spaceweather.com (opens in new tab). Scientists classified it as a G1-class storm, which means it was strong enough to create weak power grid fluctuations, cause minor impacts to satellite operation, disrupt the navigational abilities of some migrating animals, and cause unusually strong auroras.
ASTRONOMY

What is forest bathing?

Forest bathing, or shinrin-yoku in Japanese, means to soak in the forest through all of your senses. In practice, forest bathing can be a slow, mindful walk in nature, where you pay close attention to your surroundings using your senses (e.g. sight, smell, hearing, touch). There is no destination or goal, other than to notice and appreciate your surroundings.
SCIENCE

30,000 year-old mummified baby mammoth found by Canadian gold miner

A near-perfectly mummified, 30,000 year-old baby woolly mammoth has been unearthed from Canadian permafrost by a miner in the Klondike region's gold fields. The stunningly preserved baby, which measured just 4.5 feet (1.4 meters) long and has much of its hair and skin intact, was described by officials as "the most complete mummified mammoth found in North America."
SCIENCE

NASA called. They want their moondust and cockroaches back.

NASA has requested the safe return of moondust and cockroach samples that were scheduled to be sold in a private auction that ended June 23. Earlier this month, the space agency contacted RR Auction, a Boston-based auction house, to stop the sale of moondust that was collected by astronauts during the 1969 Apollo 11 mission. Shortly after the lunar dust was brought back to Earth in 1969, NASA sent some samples to a University of Minnesota (UM) researcher, who experimented with feeding the moondust to cockroaches "to determine if the lunar rock contained any sort of pathogen that posed a threat to terrestrial life," The Washington Post reported.
AEROSPACE & DEFENSE

Why does copper turn green?

Copper has a beautiful reddish hue, but when exposed to the elements, the metal undergoes a series of chemical reactions that make it turn green. But why does this color transformation occur? The answer, it turns out, is similar to why iron rusts; if iron is left unprotected in open air, it will corrode and form a flaky orange-red outer layer.
CHEMISTRY

What is gait analysis, and could it improve your running?

What is gait analysis? Chances are, if you're a runner, it's a term you've heard floating about. If you’re pounding the sidewalk in a favorite pair of running shoes, you may not have stopped to think about whether they’re the right ones. But if your shoes are designed to run in a way that doesn’t fit your stride, you might not only be unconsciously slowing yourself down, but also putting yourself at risk of injury.
FITNESS