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 Post subject: Re: Interesting Facts
Post Posted: Dec 29, 2016 9:41 am 
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Io Has Tides Like Earth, Only They're Made Of Rock

The gravitational pull of Jupiter and its other moons on the moon Io is so great that it creates ground tides that cause solid rock to regularly rise and fall by hundreds of feet.

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Io

The most volcanic known object in our solar system, Io is a moon pockmarked by active volcanoes and lakes of lava. It's roughly the size of our own moon, but its surface is nothing like it: it's constantly pulled to and fro by the gravity of Jupiter's other moons and the gas giant itself. These forces result in solid ground tides, which heave the ground up and down depending on where Io is in its orbit. The moon's "tidal bulge" can shift in height by up to 330 feet (100 meters).

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Most of us only know about tides as something that happens in water. And it's true: the types of forces that create the waves in our oceans are the same ones that cause the ground to violently shift on Io.

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Just imagine what would happen to our oceans, much less the ground we stand on, if we were as close to Jupiter—and surrounded by as many moons—as Io is. Then be happy we're not!

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Phew!

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 Post subject: Re: Interesting Facts
Post Posted: Dec 29, 2016 10:34 pm 
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amazing! what a scary place to be!!


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 Post subject: Re: Interesting Facts
Post Posted: Dec 30, 2016 9:27 am 
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mtnhsmama wrote:
amazing! what a scary place to be!!


Or better yet, NOT to be! ;)

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 Post subject: Re: Interesting Facts
Post Posted: Dec 30, 2016 9:32 am 
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The Haenyeo Are South Korean Mermaids

Remember when you watched The Little Mermaid, then told your entire class that you wanted to catch a mermaid when you grew up?

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In my dreams

But seriously, a group of elderly South Korean women are considered real-life mermaids, diving depths of up to 65 feet (20 meters) without any oxygen tanks.

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In reality

The haenyeo, or "sea women," live off the Udo and Jeju Islands in South Korea and dive in the Korea Strait for sea urchins, sea cucumbers, abalone, and squid.

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Jeju and Udo Islands

According to The Independent, Koreans often say that "haenyeo do the work of the dead in the land of the living." The women can be in the water for hours at a time, holding their breath for up to 2 minutes during each dive. They also withstand frigid waters whose temperatures drop as low as minus 6 degrees Celsius (21 degrees Fahrenheit) in the winter.

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”Sea Women” at work

Although women have primarily held this role since the 18th century, the haenyeo had been male-dominated since the 5th century. As CNN Travel reports, the divers "have fought for years protecting their rights against men, governments and even armies in order to make a living from the sea."

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In a 2016 photo series by Mijoo Kim called The Mother of the Sea, the photographer depicts what could be the last generation of haenyeo on Jeju Island.

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Mijoo Kim

This group of women are in their 60s and 70s, and there aren't any younger generations of Korean women learning to take over in their stead. Instead, they're moving to the mainland of South Korea to pursue higher education and modern careers. Through the photo series (sample photos below), Kim hopes to share "not only their beauty as women, but also their courageousness for facing such difficulties during their lives."

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 Post subject: Re: Interesting Facts
Post Posted: Dec 30, 2016 11:23 am 
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I saw a news story about them. Isn't that the most amazing thing?

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 Post subject: Re: Interesting Facts
Post Posted: Dec 30, 2016 11:25 am 
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Seems a shame elderly women have to do that kind of work just to make ends meet.

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 Post subject: Re: Interesting Facts
Post Posted: Dec 31, 2016 9:32 am 
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Photonic Laser Propulsion Could Be Our Ticket To The Stars

Right now, the Voyager I spacecraft is hurtling through space at 35,000 miles per hour.

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Voyager I

That sounds fast, until you consider that it only recently left our solar system, 37 years after its 1977 launch.

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Voyager I launch

As impressive as our feats of spaceflight have been, there's an elephant in the room. Physics professor Philip Lubin laid it out clearly when he wrote, "While we all dream of human spaceflight to the stars in a way romanticized in books and movies, it is not within our power to do so." To get there, we're going to need to go much, much faster, and our current propulsion systems just aren't hacking it.

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Philip Rubin

Enter: photonic propulsion.

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Lubin is leading a project called DEEP-IN (Directed Propulsion for Interstellar Exploration) that's studying the possibility of using lasers (aka PLT – Photonic Laser Thruster) to propel spacecraft faster than ever before. How fast? Research models say the system could send a 220-pound (100-kg) probe to Mars in three days, and a crewed spacecraft in around a month.

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Photonic Propulsion vs Current Technology

That's about five times as fast as what we're currently capable of. Photonic propulsion works in a similar way to a solar sail: both rely on light particles known as photons, which bounce off of a reflective material to transfer kinetic energy and help them accelerate through the frictionless vacuum of space. But while a solar sail is beholden to the handfuls of photons that come from the sun, the lasers used in photonic propulsion pelt the sail with a concentrated, controlled dose of light that can help it reach much greater speeds.

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Of course, there's a lot to do before a month-long trip of astronauts to the Red Planet is possible. We'd need a powerful enough laser, a big enough sail, and—importantly—a way to slow down once we got there.

Still wrapping your head around how it all works?

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Relax. It will likely be decades before a photonic propulsion could actually be used for space travel, but the fact that the technology seems to work is exciting enough to start paying attention to it.


Very-much In Depth

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 Post subject: Re: Interesting Facts
Post Posted: Jan 1, 2017 9:40 am 
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 Post subject: Re: Interesting Facts
Post Posted: Jan 1, 2017 9:43 am 
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The Gentleman Peeler

Salesman Joe Ades (pronounced AH-dess) became a New York legend selling potato/carrot peelers on the streets of Manhattan for more than a decade. By slinging these everyday kitchen tools at $5 each, he earned a small fortune. Some estimate that he took in over $250,000 a year … one $5 peeler-sale at a time.

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Sales can be a lucrative career. Imagine the commission you could make just by closing a deal on a new Bentley, or by selling a private jet to some serious high-rollers. But maybe you don't have to go to such extremes. No one knew that better than Joe Ades: While appearing on The Today Show in 2008, Ades said, "Never underestimate a small amount of money." His unique story of hard work and confidence explains why.

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Joseph Ades was born in 1934 in Manchester, England to a poor family. He began selling common items on the street at a young age, even dropping out of school to do so. Ades spent decades perfecting his craft, though he called himself a pitchman or "grafter," not a salesman. By the 1990s, Ades found himself in New York City with the one item he'd chosen to sell: $5 potato peelers. Why peelers? Mainly because they're lightweight. As an experienced salesman, Ades knew that with the proper pitch he could sell anything, and it helped that his peelers work and are portable.

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For about 15 years, Ades performed his sales pitch sitting on the city sidewalks nearly any day that it wasn't raining (though he didn't have a license to do so). "It's a much easier way to get a crowd," he told Vanity Fair in 2006 of sitting on the street. "When you're down low, people walking past can see the backs of people but they don't know what they're looking at. They have to stop and look to see what those people are looking at." Before he gained notoriety, patrons at upscale cocktail bars often laughed at Ades when he told them he sold potato peelers for a living. But Ades, who died in 2009, went home to a three-bedroom apartment on Park Avenue after a long day's work.

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The job market is a hot-button topic as of late. During the 2016 U.S. presidential election, the economy topped the list of voting issues for Americans, and the job market continues to change quickly as new technologies emerge. So it's no wonder people are worried about how they'll scrape up an income. But look at Joe Ades, and you'll quickly be reminded that believing in your abilities, coupled with an epic work ethic, could lead you to career success.

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Will hard work and skill always guarantee you financial stability? No. But it doesn't hurt to believe in yourself, work hard, and stay positive.

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In Depth

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 Post subject: Re: Interesting Facts
Post Posted: Jan 2, 2017 9:41 am 
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The Nine-Hour Spacewalk (And How It Could Help Us Prepare For Travel To Mars)

The longest spacewalk in history was in 2001 and it lasted eight hours and 56 minutes.

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A spacewalk is also called an extravehicular activity (EVA). During an EVA, astronauts exit the spacecraft to work on its exterior. The longest spacewalk in history was conducted on March 11, 2001, by astronauts Susan Helms and Jim Voss.

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Astronauts Susan Helms and Jim Voss

During the STS-102 mission of the shuttle Discovery, Helms and Voss set out to relocate a component on the ISS exterior and install a fixture on top of the station's U.S. Destiny laboratory. However, they encountered several difficulties, including tools that floated away into space and stubborn connectors that wouldn't come loose from the station's surface. The EVA clocked in at 8 hours and 56 minutes, 30 minutes longer than the previous record holder.

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NASA has its eyes on getting humans to Mars, and a trip there could last months, which means it's vital to understand how "humans respond to prolonged low gravity, cosmic radiation, and confined quarters (among other things)," as National Geographic explains. "Right now, our best proxy is to look at how seasoned astronauts are faring after long hours in Earth's orbit."

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That includes Voss and Helms' epic spacewalk.

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Specifically, how they fared in those bulky spacesuits. "Crews on Mars will also need to roam outside the relative safety of a habitat module for prolonged periods, so NASA is working on various ways to improve spacesuit designs, such as making them more flexible and easier to get on and off."

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Mars EVA (simulated)

In Depth

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 Post subject: Re: Interesting Facts
Post Posted: Jan 3, 2017 12:57 am 
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wo - too much too fast!

first the photonic propulsion post - at long last, a likelihood that scifi space travel is possible! but of course, not only must the speed limit technology be attained, the engineering of materials to withstand the speed needs to be achieved, and the ability of humans to withstand all the above needs to be explored.

joe ades - a testament to perseverance. good to kno in tough times and a model for me to follow as i pursue a new career! thx henry! happy new year to you too!


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 Post subject: Common causes of death in Jeffco, Park counties
Post Posted: Jan 3, 2017 9:25 am 
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Common causes of death, by county
What are major causes of death in your county? New data show surprising trends and differences in county-level mortality rates across the United States. From CNN. http://www.cnn.com/2016/12/27/health/ma ... _expansion

Jefferson County Colorado
Leading causes of death in Jeffco mortality rate
(Per 100,000 people)

1 Cardiovascular diseases 210
2 Tumors 165
3 Neurological disorders 106
4 Chronic respiratory diseases 57
5 Diabetes, urogenital, blood, and endocrine diseases 41
6 Diarrhea, lower respiratory, and other common infectious diseases 27
7 Self-harm and interpersonal violence 22
8 Cirrhosis and other chronic liver diseases 19
9 Mental and substance abuse disorders 15
10 Transport injuries 11

Park County Colorado

1 Cardiovascular diseases 155
2 Tumors 135
3 Neurological disorders 64
4 Chronic respiratory diseases 36
5 Self-harm and interpersonal violence 27
6 Diabetes, urogenital, blood, and endocrine diseases 22
7 Diarrhea, lower respiratory, and other common infectious diseases 19
8 Transport injuries 19
9 Cirrhosis and other chronic liver diseases 13
10 Mental and substance abuse disorders 9


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