B vitamins are often sold with the promise of boosting flagging energy levels. But men who smoke might want to skip them, according to a new study in the Journal of Clinical Oncology. While smoking kills some six million people a year, the study found that men who smoked and took large doses of vitamins B6 or B12 significantly increased their risk of lung cancer.
Articles from Popular Science
A graphic reconstruction of the eight-man submarine H.L. Hunley as appeared just before its encounter with the Union ship Housatonic, which it sunk.
Life on Earth has survived vast changes in climate, from a warm period 450 million years ago, when most of the present-day United States was underwater, to the last ice age 20,000 years ago, when New England was buried beneath a mile-thick glacier. Though climate change triggered mass extinctions, life went on.
Sine-wave speech is a form of artificially degraded speech that humans can understand with proper training. But many people who experience auditory hallucinations can understand sine-wave speech without training.
So you looked. Everyone told you not to, but it seemed so easy to sneak one little peek. Or maybe you just thought it would be okay to watch through a pair of sunglasses. Sure, you wouldn't stare at the sun through your sunglasses normally. But you were sure it was fine to chance it for such a momentous occasion.
Last week, China's dominant fighting vehicle manufacturer, China North Industries Corporation (Norinco), displayed a bevy of export armored vehicles as part of its Armor Day celebrations. These festivities, now in their second year, laud the power of Chinese military and offer an occasion to show off to senior foreign military officers, who were likely there as potential buyers.
That's a wrap on another total solar eclipse. And while the coincidental geometry and views of the phenomenon are certainly awe-inspiring, it's worth noting it's not that hard to see a total eclipse. Yes, it's a rare scenario—the last time the path of totality swept across the entire nation was in 1918—but a smaller swath of the country will be hit with totality in 2024, and 2045 will usher in a path almost as nation-wide as the one we were treated to this year.
A syzygy feels magical, and not just because it gets you at least 25 points in Scrabble. The whole concept of celestial bodies aligning feels poetic. When it results in a total solar eclipse here on Earth, you can feel for a few moments as though you're part of something much greater and grander than yourself. The transience only makes it more beautiful. Which is why thousands of people will flock to the path of totality on August 21, 2017: to witness a once-in-a-lifetime phenomenon.
You know that thing where Australians don't want nuclear reactors built in our own backyard? Yeah, China doesn't have that. It's well on its way to becoming a world leader in nuclear power; its 37 reactors are already producing 32.4 gigawatts of electricity, and more than 20 more reactors are currently under construction
The shivers, the shakes, the chills—we've all experienced a fever at one time or another. When we take our temperatures and the thermometer reads anything above 99 degrees, many of us immediately believe we are afflicted with some kind of infectious microbe. But, in fact, having a fever doesn't always signal infection. Yes, contagions like strep throat or the flu, are the most common reason for an elevated temperature, but it's surely not the only one.