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Rich Pollett
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Ah ...The Feels : )
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Horacio Gonzalez's profile photoAlex Shiroki's profile photoJon Kuhlow's profile photoGabriel Dantas's profile photo
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Did Chewie get younger? 
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Rich Pollett

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As our ability to get better resolution of Jupiter increases…
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Dave Dohrmann's profile photoMuhammad Iqbal's profile photoEvangel i's profile photoPaul Gatling's profile photo
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+Pierre Markuse I've had a bad feeling since about 1988...but we're probably not talking about the same thing.
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Rich Pollett

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Watch set into a single Colombian emerald crystal, circa 1600; the watch is part of the Cheapside Hoard, a cache of jewels and jewelry buried since the Great Fire of London in 1666 and rediscovered in 1912. This looks like the kind of thing you write a whole novel about, starring relatable youths who are irreversibly altered by their strange experiences.

Other examples (and more links) from the Cheapside Hoard:

http://ufansius.tumblr.com/post/90070258830/sapphire-and-diamond-cross-pendant-front-and-back

http://ufansius.tumblr.com/post/86750628593/cameos-and-carved-precious-and-semiprecious-stones

http://ufansius.tumblr.com/post/84556403521/bejeweled-pomander-england-circa-1600-buried

http://ufansius.tumblr.com/post/114548271729/gold-emerald-diamond-and-enamel-hat-ornament-in

The Museum of London’s Extraordinary Cheapside Hoard:
http://www.gia.edu/gems-gemology/FA13-cheapside-hoard-weldon

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Jim Sutton's profile photoPaula Allen's profile photoᎮᏘULᎧ ᎶᎧᏁᏨᏘLᏤᏋᎦ's profile photo
 
Very interesting!
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Mount Roraima, South America: This tabletop mountain is one of the oldest mountains on Earth, dating back two billion years when the land was lifted high above the ground by tectonic activity. The sides of the mountain are sheer vertical cliffs, with several waterfalls, making it very nearly impossible to climb.
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+Carl Hillis maybe this particular mountain is an integral part of the mountain system where angel falls is located. or are the falls ad-libs?
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Rich Pollett

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Shared on twitter with a different caption :) http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1182327/
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Still ... nothing ; )                                         Game of Thrones Season 5
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ᎮᏘULᎧ ᎶᎧᏁᏨᏘLᏤᏋᎦ's profile photo
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The mathematician Archimedes once said, “Give me a place to stand, and I shall move the Earth." As it turns out, he was describing the fundamental principle behind the lever

The lever is balanced when the product of the effort force and the length of the effort arm equals the product of the resistance force and the length of the resistance arm. This relies on one of the basic laws of physics, which states that work measured in joules is equal to force applied over a distance.

A lever can’t reduce the amount of work needed to lift something, but it does give you a trade-off.Increase the distance and you can apply less force. Rather than trying to lift an object directly, the lever makes the job easier by dispersing its weight across the entire length of the effort and resistance arms. So if your friend weighs twice as much as you, you’d need to sit twice as far from the center as him in order to lift him. By the same token, his little sister, whose weight is only a quarter of yours, could lift you by sitting four times as far as you.

With a big enough lever, you can lift some pretty heavy things. A person weighing 150 pounds, or 68 kilograms, could use a lever just 3.7 meters long to balance a smart car, or a ten meter lever to lift a 2.5 ton stone block, like the ones used to build the Pyramids. If you wanted to lift the Eiffel Tower, your lever would have to be a bit longer, about 40.6 kilometers.

The Earth weighs 6 x 10^24 kilograms, and the Moon that’s about 384,400 kilometers away would make a great fulcrum. So all you’d need to lift the Earth is a lever with a length of about a quadrillion light years, 1.5 billion times the distance to the Andromeda Galaxy.

And of course a place to stand so you can use it.

> https://www.youtube.com/watch?v=YlYEi0PgG1g

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love the gifs.  
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We’ve solved the mystery of the food coloring drops that chase each other

A puzzling observation, pursued through hundreds of experiments, has led Stanford researchers to a simple yet profound discovery: Under certain circumstances, droplets of fluid will move like performers in a dance choreographed by molecular physics.

What makes drops of food coloring able to dance, chase, sort themselves, or align with one another? This unexpected behavior is a consequence of food coloring consisting of two mixed liquids: water and propylene glycol. Both have their own surface tension properties and evaporation rates, which ultimately drives the behavior you see in the animated gifs. Both long-range and short-range interactions are observed. The former are due to vapor from each droplet adsorbing onto the glass around the droplet, thereby changing the local surface tension and causing nearby drops to feel an attractive force. The short-range effects are also surface-tension-driven.

Droplets with lower surface tension will naturally try to flow toward areas of higher surface tension, which causes them to “chase” dissimilar adjacent drops. You can learn more about the research in the videos linked below (especially the last two), or you can read about the work in this article.

Stanford: http://news.stanford.edu/news/2015/march/dancing-droplets-prakash-031115.html

video 1: https://www.youtube.com/watch?v=LTllH6RnHnQ

video 2: https://www.youtube.com/watch?v=h7o55tyHzxM

video 3: https://www.youtube.com/watch?v=K8Wx2PHIYGI

video 4: https://www.youtube.com/watch?v=ZMsaH6SY4CY

GIFs via freshphotons
  
#scienceeveryday #physics #fluiddynamics #droplets
#evaporation #surfacetension #microfluidics  
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endi kim's profile photoВолодимир Семещенко's profile photoBob Calder's profile photoᎮᏘULᎧ ᎶᎧᏁᏨᏘLᏤᏋᎦ's profile photo
 
Fascinating!
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Rich Pollett

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People owned vampire crabs as pets for years before science identified them

The newly described species, Geosesarma dennerle and Geosesarma hagen, were found in separate river valleys on the Indonesian island of Java. "These crabs are kind of special because they've been around in the pet trade for ten years, but no one knew where they come from," said study co-author and professional aquarist Christian Lukhaup of Waiblingen, Germany.

These crabs' blazing eyes and spectacular colors explain their attraction to aquarists.

Article:
http://news.nationalgeographic.com/2015/03/150316-vampire-crabs-animals-new-species-science-pets/

New species of “vampire crabs” (Geosesarma De Man, 1892) from central Java, Indonesia, and the identity of Sesarma (Geosesarma) nodulifera De Man, 1892 (Crustacea, Brachyura, Thoracotremata, Sesarmidae) PDF:
http://lkcnhm.nus.edu.sg/nus/images/rbzvolume63/63rbz003-013.pdf

Images: Chris Lukhapu
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Siva Subramanian's profile photoAtanas Georgiev Atanasov's profile photovenkatesh shanthosh's profile photoBarbara J.'s profile photo
 
What a beauty.....
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Rich Pollett

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Homer's Theorem

The Higgs boson was first theorized in 1964 by a team of physicists including Peter Higgs, for whom the particle was named. The Higgs boson and the Higgs field are believed to be what gives certain fundamental particles mass. Scientists at the CERN Large Hadron Collider tentatively confirmed their discovery of the Higgs boson in 2012. They calculated the mass of the particle to be between 125 and 127 giga-electron volts (GeV).

Homer’s equation, when solved, gives a mass of 775 GeV, more than five times the actual mass of the Higgs boson, but as Singh explains in the book The Simpsons and Their Mathematical Secrets it was, “not a bad guess, particularly bearing in mind that Homer is an amateur inventor and he performed this calculation fourteen years before the physicists at CERN, the European Organization for Nuclear Research, tracked down the elusive particle.”

http://www.npr.org/blogs/krulwich/2014/05/08/310818693/did-homer-simpson-actually-solve-fermat-s-last-theorem-take-a-look

Image: simpsonsworld.com
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Jim Carver's profile photoDave Dohrmann's profile photoAkshobhya Jamadagni's profile photoAboafrae Khaled's profile photo
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The answer is, no, they didn't, like the vid says it's a near miss. The real proof I posted. Wiles found it in 1995.
"In the 1950s and 1960s a connection between elliptic curves and modular forms was conjectured by the Japanese mathematician Goro Shimura based on ideas posed by Yutaka Taniyama. In the West it became well known through a 1967 paper by André Weil. With Weil giving conceptual evidence for it, it is sometimes called the Taniyama–Shimura–Weil conjecture. It states that every rational elliptic curve is modular."
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Women of Color Working in STEM Fields Are Frequently Mistaken for Janitors

Almost half of Black and Latina women working as scientists have been mistaken for a janitor or administrator of their offices, reveals a new report (http://www.toolsforchangeinstem.org/double-jeopardy-report-viewer/) on the experiences of women of color working in science, technology, engineering, and math (STEM) fields.

As one Latina statistician told researchers, “I always amuse my friends with my janitor stories, but it has happened not only at weird hours.” She calmly informed someone that she had the key to the office, not the janitor’s closet.

That detail is part of “Double Jeopardy: Gender Bias Against Women of Color in Science,” the new report by the Center for WorkLife Law at the University of California that surveyed 500 female scientists and conducted in-depth interviews with 60 more. It provides a damning look at how gender and racial bias impacts women’s mental health and careers.

The conventional wisdom is that women don’t work in the sciences at the same rate as men because of a lack of early encouragement for girls to pursue STEM careers and because they’re more likely to leave careers to have kids. But the interviews show that those explanations leave out the hostile and discouraging environment that many women face in male-dominated classrooms, offices, and labs. Of the 60 scientists interviewed in the report, 100 percent reported that they had experienced gender discrimination during their careers. More than 75 percent of the African-American women scientists surveyed reported having to prove their intelligence over and over again. They feel they can’t afford to make a single mistake.”

Read the full piece: http://bitchmagazine.org/post/women-of-color-working-in-stem-fields-are-frequently-mistaken-for-janitors

Teenage scientist Alexa Dantzler works in a chemisty lab at Emory University. Photo by Isabelle Saldana.

#science #culture #STEM  
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Jayson Wiggins's profile photoDavid Taylor's profile photo‫مردک مرتیکه‬‎'s profile photoolivier MESSE's profile photo
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+Derrufo Konepke this is a post about the marginalizing of women of color in STEM fields, that I refuse to properly reply to your off topic Obama baiting, means I refuse to allow you to make this "Obama's fault".
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Rich Pollett

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Mold is surprisingly beautiful when seen up close

Russian photographer Nick Lariontsev made this cool time-lapse using macro lens to show how mold grows from up close. At this zoom level, something that normally disgust us transforms into a beautiful alien universe full of life.

Mold Time Lapse https://www.youtube.com/watch?v=JsQHWj2RfXg
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Bedhan Ball's profile photoMarie Boran's profile photoJared Huet's profile photoTom Dragonheart (Tomrocks13)'s profile photo
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I also enjoy various moss and lichen up close.
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