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2018年3月17日 星期六

Daily Bulletin for 03/17/2018 

03/17/2018
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Why Can't Everyone Do the 'Asian Squat'?

Sarah Zhang, The Atlantic

Among the more practical advice that can be offered to international travelers is wisdom of the bathroom. So let me say, as someone who recently returned from China, that you should be prepared to one, carry your own toilet paper and two, practice your squat.I do not mean those goofy chairless sits you see at the gym. No, toned glutes will not save you here. I mean the deep squat, where you plop your butt down as far as it can go while staying aloft and balanced on the heels.

How to Maintain Sexual Desire

Ross Pomeroy, RealClearScience

Maintaining sexual desire the drive to engage in sexual activity between partners is often integral to a successful, long-term monogamous relationship, but frequently left unspoken is how difficult this can be.Behind closed doors, counselors help couples deal with desire problems all the time, so it's high time to bring this discussion out into the open. A new systematic review published to The Journal of Sex Research does just that.

Young Blood: Magic or Medicine?

David Irving, The Conversation

Ben Franklin famously wrote: In this world, nothing can be said to be certain, except death and taxes. What he didn't mention, despite being 83 years old, was a third, almost inevitable eventuality: ageing.Depending on when in history and where on the planet you look, ageing is variously considered desirable bringing with it wisdom and status or as something to be feared, eliminated, or at least delayed as long as possible.

Hawking's Greatest Discovery Revolutionized Black Holes

Ethan Siegel, Forbes

In 1915, Albert Einstein published his General theory of Relativity, replacing our old Newtonian worldview with a unified concept of spacetime. On one side of Einstein's equations, the matter and energy in the Universe told spacetime how to curve; on the other side, the curved fabric of spacetime told matter and energy how to move.

No Scientist Wants to Be the Next 'BICEP2'

Andrew Grant, Physics Today

On 28 February we learned that an RF telescope isolated from the electromagnetic clamor of civilization had detected a signal with enormous implications. After years of painstaking analysis to filter out noise from the atmosphere, the galaxy, and technology, researchers concluded that the faint residual radiation hails from the dawn of the universe.

Comets and Asteroids Shower Mars with Organics

Jake Parks, Astronomy

For decades, astronomers suspected that Mars might be teeming with organics, which are carbon-based molecules like proteins, carbohydrates, and nucleic acids. However, it wasn't until 2015 that the Mars Curiosity rover uncovered the first evidence showing these life-supporting compounds were not only present, but also likely scattered all over the Red Planet.

Can We Actually Colonize Mars?

Allison Eck, PBS NOVA

Amidst rising global nuclear tensions, SpaceX and Tesla founder Elon Musk is calling for drastic action. He wants humans to colonize Marsstat.An MIT team designed the Redwood Forest, a series of forest habitats inside open, public domes.It's important to get a self-sustaining base on Mars because it's far enough away from Earth that [in the event of a war] it's more likely to survive than a moon base, Musk said at the annual South by Southwest (SXSW) conference in Austin, Texas last Sunday.

Physicists Are Building Miniature Universes

Katia Moskvitch, Wired

Silke Weinfurtner is trying to build the universe from scratch. In a physics lab at the University of Nottinghamclose to the Sherwood forest of legendary English outlaw Robin Hoodshe and her colleagues will work with a huge superconducting coil magnet, 1 meter across.

NASA's Creation Is a Lesson in Political Power

Jeremy Deaton, Popular Science

President Trump's proposed 2019 budget calls for deep cuts to research, and while it is unlikely to gain traction in Congress, it is a troubling statement of the administration's priorities. As Neil deGrasse Tyson tweeted, The fastest way to Make a America Weak Again: Cut science funds to our agencies that support it.

New Record Set for Longest Carbon-Carbon Bond

Tien Nguyen, C & E News

The single carbon-carbon bond is among the most familiar covalent connections in organic compounds. But a new study suggests that chemists have yet to fully explore the limits of this basic bond.Scientists have previously found that these ubiquitous bonds, which typically measure about 1.54 in length, can be elongated through the use of bulky substituents to endow molecules with special properties.

Could Rapamycin Help Humans Live Longer?

Anne N. Connor, The Scientist

In the 1990s, pharmacologist Dave Sharp of the University of Texas's Barshop Institute for Longevity and Aging Studies in San Antonio was studying mice with pituitary dwarfisma condition in which the pituitary gland fails to make enough growth hormone for normal development. The puzzle, Sharp explains, was that research had shown that these hormone-deficient dwarf mice lived longer than normal mice. I wondered, why is being small connected with longer life? he says.

China Is Building a Spaceplane of Its Own

Kyle Mizokami, Popular Mechanics

China is reportedly developing a reusable spaceplane capable of delivering cargo to Earth orbit. The unnamed spacecraft appears similar to the U.S. Air Force's X-37B space plane and likely has the same missions. However, it does differ from its American cousin in some key respectsat least for now.

How Einstein Nearly Messed Up Relativity

Kevin Hartnett, Quanta

Albert Einstein released his general theory of relativity at the end of 1915. He should have finished it two years earlier. When scholars look at his notebooks from the period, they see the completed equations, minus just a detail or two. That really should have been the final theory, said John Norton, an Einstein expert and a historian of science at the University of Pittsburgh.

Brain Preservation Is a Step Closer

Sue Blackmore, The Guardian

Are you longing for your brain and all its memories to be preserved for ever? That once fanciful idea seems creepily closer now that a complete pig's brain has been successfully treated, frozen, rewarmed and found to have its neural connections still intact.

Climate Science Goes to Court Next Week

Maddie Stone, Earther

In a remarkable development in what's shaping up to be a high-profile legal battle, a U.S. District Court judge has ordered a first-of-its kind court hearing on the science of climate change. It's already drawing comparisons to the famed 1920s Scopes Trial on teaching evolution in classrooms.
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