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Peter Edenist

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Spinning Fire at Dripstone Cliffs

One from the archives: a wee spot of fire spinning at Dripstone Cliffs.

Good evening.

#DripstoneCliffs  #FireSpinning #FirePoi #FirePois #PlayingWithFire #Fire #LongExposure
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Next Kickstarter to save more SF books. "Save the Sci Fi: The Next Generation!
We're here to continue our original mission and SAVE MORE SCI FI! But we can't do it without YOUR HELP!
Here's what we're doing about it: Each month we choose one great classic, obscure or otherwise fascinating sci-fi book that’s no longer in print and not available online, track down the copyright holder and/or author (if they’re still around), acquire or otherwise clear the copyright, and publish the title as an e-book, for little or no cost. Our supporters and followers help us find titles they remember and love, and we share the stories behind the stories, including in each e-book what we learned about the novel, the author and their history along the way."
Singularity&Co. is raising funds for Save the Sci Fi: The Next Generation! on Kickstarter! Saving rare, forgotten, out-of-print vintage science fiction for the digital future, one e-book at a time!
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Really like this poster !
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Make Room For The Elderly

Because they rule. Number three in the series.

Pinging +Mz Maau​, +Niamh Brown​ and +Peter Edenist​ because #aliens.

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+The TerraMar Project explains how tides may have clues to climate change....
Canadian and American scientists are teaming up with Australian researchers to study some of the largest waves on the planet in the Tasman Sea. Oh, and did we mention those waves are beneath the ocean's surface?

Also known as internal tides, these underwater waves are the result of water getting pushed against features on the seafloor such as ridges and mounts. The turbulence caused by these obstructions can create underwater waves hundreds of meters high that can be imperceptible at the surface but powerful enough to move whales and submarines. Scientists speculate internal tides can provide insights to climate change and fisheries. The Schmidt Ocean Institute has a great explanation on their website, and the R/V FALKOR will be involved in the expedition:

According to Dr. Pete Sutton, University of Tasmania's Institute for Marine and Antarctic Studies (IMAS) and part of the research team, "The goal of this research expedition is to discover and measure the procession of those internal tidal waves and to document the various phenomena that occur when they impact the deep continental slopes. The internal tides and turbulent mixing that occurs in the deep sea off Tasmania is thought to affect the overall circulation of the global ocean. Understanding these processes is a critical step in predicting our climate." You can find more of his comments on the University of Tasmania's website:

#climatechange   #fisheries   #underwaterwaves   #science  
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+Frank Gainsford I did, thanks. I am one of the owners of the Science on G+ community :)
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What Exactly Are Gold, Frankincense, and Myrrh?

This is not about any religion or a discussion of religion.  I just wanted to find out what was so important about Gold, Frankincense and Myrrh that they were considered valuable.  I ask that any comments please be strictly materials science related.

This one is easy, it is gold, the shiny metal that has been a symbol of wealth since it was first discovered.  
Gold is a chemical element with the symbol Au and atomic number 79. It is a dense, soft, malleable, and ductile metal with an attractive, bright yellow color and luster that is maintained without tarnishing in air or water. Chemically, gold is a transition metal and a group 11 element. It is one of the least reactive chemical elements, solid under standard conditions. The metal therefore occurs often in free elemental (native) form, as nuggets or grains in rocks, in veins and in alluvial deposits.  ⓐ

This metal has been a valuable and highly sought-after precious metal for coinage, jewelry, and other arts since long before the beginning of recorded history. Gold standards have sometimes been monetary policies, but were widely supplanted by fiat currency starting in the 1930s. The last gold certificate and gold coin currencies were issued in the U.S. in 1932. In Europe, most countries left the gold standard with the start of World War I in 1914 and, with huge war debts, did not return to gold as a medium of exchange. The value of gold is rooted in its medium rarity, easily handling, easy smelting, non-corrosiveness, distinct color and non-reactiveness to other elements; qualities most other metals lack.  ⓐ

Besides its widespread monetary and symbolic functions, gold has many practical uses in dentistry, electronics, and other fields. Its high malleability, ductility, resistance to corrosion and most other chemical reactions, and conductivity of electricity has led to many uses, including electric wiring, colored-glass production, and gold leafing.  ⓐ

Most of the Earth's gold probably lies at its core, the metal's high density having made it sink there in the planet's youth. Virtually all discovered gold is considered to have been deposited later by meteorites that contained the element, with the asteroid that formed Vredefort crater having been implicated in the formation of the largest gold mining region on earth, Witwatersrand basin  ⓐ
Gold has been used for more than 75 years to treat rheumatoid arthritis (RA). (Indeed, gold preparations are among the original medications targeting this form of arthritis). Before its use in RA, gold was used to treat infections, including tuberculosis. Gold is one of a class of medications known as disease-modifying antirheumatic drugs (DMARDs), because it not only decreases the pain and swelling of arthritis but also can prevent joint damage and disability. While gold can be very effective at suppressing the signs and symptoms of RA for some patients, it is used less frequently as new, better tolerated medications have been identified.,_Ridaura,_Solganol)/

Gold nanoparticles are also used in cancer treatment. 
As a delivery agent for anti cancer drugs.

And tiny particles of gold are also used in thermal cancer treatment.

Frankincense, also called olibanum  
Derived from tree sap, or gum resin, both frankincense and myrrh are prized for their alluring fragrance. Frankincense is a milky white resin extracted from species of the genus Boswellia, which thrive in arid, cool areas of the Arabian Peninsula, East Africa and India. The finest and most aromatic of this species is Boswellia sacra, a small tree that grows in Somalia, Oman and Yemen. These plants, which grow to a height of 16 feet (5 meters), have papery bark, sparse bunches of paired leaves, and flowers with white petals and a yellow or red center  ⓑ

The English word is derived from Old French "franc encens" (i.e. high quality incense)[1] and is used in incense and perfumes.  There are four main species of Boswellia that produce true frankincense and resin from each of the four is available in various grades. The grades depend on the time of harvesting. The resin is hand-sorted for quality.  

I found two dissertations on Frankincense and they are a fascinating, very detailed discussion of Frankincense and its uses. More than you ever wanted to know about this sweet smelling incense. 

Chemotaxonomic Investigations on Resins of the Frankincense Species Boswellia papyrifera, Boswellia serrata and Boswellia sacra, respectively, Boswellia carterii   by Michael Paul

Myrrh is the aromatic resin of a number of small, thorny tree species of the genus Commiphora, which is an essential oil termed an oleoresin. Myrrh resin is a natural gum. It can also be ingested by mixing it with wine.  ⓓ

When a tree wound penetrates through the bark and into the sapwood, the tree bleeds a resin. Myrrh gum, like frankincense, is such a resin. When people harvest myrrh, they wound the trees repeatedly to bleed them of the gum. Myrrh gum is waxy, and coagulates quickly. After the harvest, the gum becomes hard and glossy. The gum is yellowish, and may be either clear or opaque. It darkens deeply as it ages, and white streaks emerge ⓓ

Myrrh's uses are similar to those of frankincense, with which it is often combined in decoctions, liniments and incense ⓓ

Myrrh is a common ingredient of tooth powders. Myrrh and borax in tincture can be used as a mouth-wash. A compound tincture, or horse tincture, using myrrh is used in veterinary practice for healing wounds. Meetiga, the trade-name of Arabian Myrrh, is more brittle and gummy than that of the Somalian variety and does not have the latter's white markings. ⓓ

The oleo gum resin obtained from Commiphora species, myrrh is well known as a fragrance used in incense and in perfumes. It is also used in traditional medicine for treating inflammation, stomach problems, asthma and other bronchial conditions.  Studies indicate that myrhh has anti-inflammatory, cytotoxic, anti-trichomonas  and antipyretic effects in vitro and in mice  ⓔ

Wiki - Has an excellent write up about Gold. 

How Stuff Works.

Wiki on Frankincense

Wiki on Myrrh

Memorial Sloan-Kettering Cancer Center

Images:  Frankincense on a hot coal Wiki
Myrrh Wiki
Gold plating on James Webb Space Telescope, NASA
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Peter Edenist

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The Decision : Humans are inducted into the Hnnesset and Dranke makes a decision by default in the continuing story of the crew of the Raven. ( Part 24 of the Mission impossible Science fiction series of flashfiction written in space opera style ).

I have been tied up, so I appreciate your patience and kind words of encouragement. Thanks to all those who asked me to post!

If you haven't read the earlier stories, here is the chronology:
First Part:
Part 2 :
Part 3 :
Part 4 :
Part 5 :
Part 6 :
Part 7 :
Part 8  :
Part 9  :
Part 10:
Part 11:
Part 12:
Part 13:
Part 14:
Part 15:
Part 16:
Part 17:
Part 18:
Part 19:
Part 20:
Part 21:
Part 22:
Part 23:
Part 24:

Mission impossible is a series set in the distant future. If you like science fiction and space opera, this may be an interesting read. Notifying select people who have evinced interest in receiving notifications.

#sciencefiction #scifi #flashfiction #spaceopera  
Dranke had not slept well. It clearly showed as he stumbled into the shower room in the Hnnesset living quarters. Every human concern had been addressed. But there were no familiar trappings. He stared at the small cubicle in...
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On April 6, marine scientist Tim Essington of the University of Washington, published a study in PNAS that found intense fishing does amplify forage fish collapses. He looked at patterns of 55 forage fish populations around the world over multiple decades and saw that collapses were much deeper and more frequent when fishing occurred.

You can find Essington's study on the PNAS website here:

If you're interested in a short animation, news story, or fact sheet that explains this research more briefly, please visit

It's featured by many press articles today including "Science" here:
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Peter Edenist

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Awesome -- +Alex Wild and +The University of Texas at Austin are organizing a crowd funding effort to pay for the generation of oodles of high-quality public domain insect images: "We’ll be supporting a team of UT students as they produce thousands of public domain images, both of live animal behavior in the field and of detailed microscopic structures in preserved specimens. We hope you consider helping us as we create a stream of open science images, free for anyone to use."

[ #science   #ants   #insects   #myrmecology   #copyright   #photography   #photos   #UTAustin   #AlexWild   #biology   #ecology   #crowdfunding   #crowd  ]
A while back I wrote a feature for Ars Technica on the dysfunctional online copyright landscape. The piece was personal. My photographs average around $50 each to make, mostly in time, equipment, a...
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Peter Edenist

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If you liked yesterday's Jupiter image....

Then wow... have I got something for you....

So if you're wondering what I'm talking about, yesterday I shared out an animation from multiple shots taken by the +Hubble Space Telescope of #Jupiter  and its three moons: #Europa   #Calisto  and #Io . (

But as was revealed in yesterday's #HubbleHangout , the team was also able to resolve the tiny moons Amalthea & Thebe!! Below is a #gif  of multiple frames taken by Hubble.

To give you a bit of perspective, the average radius of Amalthea is about 85 kilometers while the average radius of Thebe is about 49 kilometers. I say average (or mean) radius, because they're so tiny... they're not really spherical... but that's realllllly tiny to be able to resolve not only the object, but their shadow!

Was simply  blown away by this yesterday when +Zolt Levay mentioned some supplemental footage at the #HubbleHeritage  site.

If you didn't see yesterday's show, I totally recommend it. And not just because I was there. It really was an awesome show with fantastic conversations with the science and image teams from many projects coming together to take a rare glimpse at our largest planets and its moons.

#SciFri   #ScienceEveryday   #ScienceFriday   #Astronomy   #Hubble25   #Space   #Hubble  
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A New Free Astrophotography E-Book !!!!
Posted with Permission of The Science on G+ Community Owners.
My Full Disk Hydrogen Alpha Sun Photo is Featured on the "Front Cover" of a New Free E-Book called "Imaging the Sky" by Astronomy Magazine & Celestron!
Thank you Astronomy Magazine & Celestron Telescopes for sponsoring this Free E-book!!
It has tips for beginners & seasoned Amateurs, images, as well as great how to articles written by Masters of Astrophotography Damien Peach, Don Parker, Robert Reeves, Micheal Covington, & Christopher Go!  If you would like to learn about Astrophotography
then download your Free PDF E-book copy at Astronomy Magazines website.
Best Regards,
John Chumack
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Pink was for boys and blue was for girls : At least before the modern obsession of going the other way. It kind of proves that the color palette we expect for boys and girls is based on societal pressures. At least now we know better!

Roosevelt : Little Franklin Delano Roosevelt sits primly on a stool, his white skirt spread smoothly over his lap, his hands clasping a hat trimmed with a marabou feather. Shoulder-length hair and patent leather party shoes complete the ensemble. Social convention of 1884, when FDR was photographed at 30 months, dictated that boys wore dresses until age 6 or 7, also the time of their first haircut. Franklin’s outfit was considered gender-neutral.

How conventions came to be : Why have young children’s clothing styles changed so dramatically? How did we end up with two “teams”—boys in blue and girls in pink? "It’s really a story of what happened to neutral clothing,” says Paoletti, who has explored the meaning of children’s clothing for 30 years. For centuries, she says, children wore dainty white dresses up to age 6. “What was once a matter of practicality—you dress your baby in white dresses and diapers; white cotton can be bleached—became a matter of ‘Oh my God, if I dress my baby in the wrong thing, they’ll grow up perverted,’ ” Paoletti says.

Pink for boys - since it is a stronger color : a June 1918 article from the trade publication Earnshaw's Infants' Department said, “The generally accepted rule is pink for the boys, and blue for the girls. The reason is that pink, being a more decided and stronger color, is more suitable for the boy, while blue, which is more delicate and dainty, is prettier for the girl.”

It all changed in 1985 : Prenatal testing was a big reason for the change. Expectant parents learned the sex of their unborn baby and then went shopping for “girl” or “boy” merchandise. (“The more you individualize clothing, the more you can sell,” Paoletti says.) The pink fad spread from sleepers and crib sheets to big-ticket items such as strollers, car seats and riding toys. Affluent parents could conceivably decorate for baby No. 1, a girl, and start all over when the next child was a boy.

Gendered roles : “One of the ways women thought that girls were kind of lured into subservient roles as women is through clothing,” says Paoletti. “ ‘If we dress our girls more like boys and less like frilly little girls . . . they are going to have more options and feel freer to be active.’ ”

Article link:

Pink v/s Blue gender myth:

Related paper:

Reversing the trend:

Gender stereotypes:

Pic courtesy:

#science #society #gender  
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Oh that is so interesting. :)
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Wireless internet - cost effective, high speed and everywhere : Sounds like a dream? Well that's what researchers at University of Lancaster are working on. Using the W-band or the millimeter band , seems to be the way to go, promising cost effective and high speed data transfers. The system is yet to be tested in a real operating environment, but indications are favourable.

What is W-band wireless? : The ground-breaking £2.8 million TWEETHER project, funded by Horizon 2020, the biggest EU research and innovation programme ever, will set an important milestone in 'millimeter wave technology' for high speed wireless mobile and fixed point Internet.Millimeter waves - extremely high frequency waves found in the spectrum between microwaves and infrared waves - are deemed to be the most promising and cost effective solution for the future.

Promising : The TWEETHER project will result in a powerful and compact transmission hub, based on a novel travelling wave tube power amplifier and an advanced chipset in a compact terminal, with performance far outweighing any other technology. After three years of design and development, the system will be tested in a real operating environment.

New idea : Professor Paoloni said the answer was the exploitation of unused portions of the spectrum but at higher frequencies. The recent outstanding advancements in the field of vacuum electron devices and solid state electronics using millimetre wave frequencies opens the route for the breakthrough in wireless high speed data communications.

References and Sources

Related paper in IEEE :

Related paper in Optics Express:

Viasat site on next-gen satellites :

Related paper in Researchgate:

Pics courtesy: Utexas, Science20 and (Pics for illustration only).

#internet #wireless #millimeterband  
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Hoping that this ambitious project brings a good answer to the digital divide and to the concentration of private wifi because of "security".
Thank you +Lacerant Plainer and +Peter Edenist, always a pleasure to read you :) 
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