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BEER-----> Yes, this was catastrophic for my fore fathers. Some were able to keep their head.

BECH

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1 minute ago, beerbelch said:

BEER-----> Yes, this was catastrophic for my fore fathers. Some were able to keep their head.

BECH

:39:

 

New Tidbit ~

The Interior Of Nuclear Reactor Cores Glow What Color?

1 ~ Red
2 ~ Blue
3 ~ Yellow
4 ~ Green

Spoiler

Answer: Blue

Pop culture depictions of glowing green radioactive materials like the “ooze” in Teenage Mutant Ninja Turtles or the green glow of radiation at Homer’s nuclear reactor job in The Simpsons have done a remarkable job of cementing the idea in peoples’ heads that radiation is green, green, and more green.

So you might be very surprised to find out that the interior of a nuclear reactor doesn’t glow green at all, but an incredibly serene blue color that belies the danger found therein. The blue glow found in water-submerged nuclear reactor cores is called “Cherenkov radiation”, named after Soviet researcher Pavel Cherenkov, and is a form of electromagnetic radiation emitted when a charged particle passes through a dielectric medium at a speed greater than the phase velocity of light in that medium. In layman’s terms, the glow results from electrons freed during the nuclear reaction zipping along at very high speeds through the water.

Why blue instead of another color on the visible spectrum? Cherenkov radiation is very high frequency and the majority of it isn’t even visible to the human eye (but is in the ultraviolet range just outside the edge of the visible spectrum). The blue we see is the very lowest end of the frequency emitted by the reaction and, just over the frequency line, so to speak, from ultraviolet, and we see it as very bright blue.

 

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16 hours ago, Walkabout said:

Three giant viking swords are raised at Hafrsfjord in memory of an ancient battle that united Norway into one kingdom !   https://www.thevintagenews.com/2016/08/19/priority-three-giant-viking-swords-raised-hafrsfjord-norway-memory-ancient-battle-united-norway-one-kingdom-872-ad/

A battle that united Norway into one kingdom in 872 AD. Source

 

They're beautiful ! !  Thanks for posting the link.

Today's Two Tidbits ~

#1 ~

Image result for unusual tidbits

 

#2 ~

Numbers Used To Identify Something Are Known As?

1 ~ Original
2 ~ Cardinal
3 ~ Nominal
4 ~ Ordinal

Spoiler

Answer: Nominal

In the world of numbers, the numbers themselves are divided into categories based on how they are used. When we count things, we rely on cardinal numbers. How many Highlander movies are there? There are five Highlander movies. Ordinal numbers give us the position of something relative to other things. When was the eponymous Highlander born? In the 16th century (a century we locate relative to the 15th and 17th centuries). Which Highlander film do fans not talk about? The second film. Why? Because it doesn’t exist.

Conversely, nominal numbers are numbers that serve strictly to identify something and do not convey the number of something or its placement relative to other things on a number line. The numbers on sports jerseys, for example, are nominal in that they don’t denote player rank, but simply identify players the same way a zip code identifies a geographic region.

That said, if the Highlander was a basketball player instead of a battle hardened Scotsman, his jersey would most certainly be number 1 because, as all Highlander fans understand (regardless of whether they shun the ordinal numbering of the films or not), there can be only one.

Numbers Used To Identify Something Are Known As?

Edited by Earthnut

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The Animal With The Largest Tested Working Memory Is A?

1 ~ Dolphin
2 ~ Crow
3 ~ Gorilla
4 ~ Dog

Spoiler

Answer: Dog

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Chaser, a border collie trained by psychologist Dr. John W. Pilley, has the largest tested memory of any non-human animal. How large? She can identify over 1,000 toys by their name and by the category they have been assigned to by her trainer, and all this in addition to remembering common nouns like “ball” and “tree”.

Further, she can learn new words by inferential reasoning by exclusion—if you give her a basket of old toys with a new one mixed in and ask her to retrieve the new toy with an unknown name, she’ll identify the new toy (and its name) by excluding toys whose names she already knows.

If you ever need to rely on a service animal to help supplement your memory, it would be wise to pick a border collie. Chaser isn’t a one-off anomaly. The other most prominent examples of dog recall are also found in border collies—a fact that should come as no surprise to any border collie owners reading this bit of trivia since the breed is renowned for its drive to learn new tricks and the speed in which they do so.

 

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The Color Changing Structures Found In Chameleons, Squids, And Other Creatures Are Called?

1 ~ Chromatophores
2 ~ Spectracones
3 ~ Pigmentation Cysts
4 ~ Melanocytes

Spoiler

Answer: Chromatophores

Of all the phenomena in the animal kingdom, very little has delighted humankind so consistently through the ages as the color changing and camouflaging abilities of creatures around the world—as far back as 400 BC, ancient scholars, like Aristotle, were already noting the ability of cephalopods, for example, to change color.

This ability stands in stark contrast to our rather boring human coloration. We, like other mammals and birds, have a coloration determined by the presence of cells known as melanocytes. However light-skinned or dark-skinned we appear, no matter the coloration of our canine and feline pets, or the coloration of animals we see outside our homes like squirrels and birds, it is all determined (and often permanently fixed) by melanocytes.

In the case of other species like amphibians, fish, reptiles, crustaceans, and cephalopods, however, their coloration is governed by a totally different set of cells called chromatophores. In the vast majority of cases, these chromatophores are inert and a fish that is blue today will be blue tomorrow, just like a cat that is black today will be black tomorrow. But in some special cases, like that of the chameleon and some cephalopods, the organism has complex mechanisms for controlling the display of chromatophores, thus allowing it to change coloration and patterns.

Interestingly enough, the mechanism of control is completely different in invertebrates (like the octopuses and squids) and vertebrates (like chameleons). Octopuses have complex multicellular organs that are manipulated via muscular contraction to change the translucency, reflectivity, or opacity of the pigment contained inside. This action is akin to opening or closing the shutters on colored stage lights to change the color on the stage.

It was long believed that chameleons used a similar mechanism and dispersed pigment-containing organelles within their skin to change color. We now know, however, that they change color by altering the density of a lattice of guanine nanocrystals in a specialized layer of skin in such a way that it affects which wavelengths of light are reflected and which are absorbed. This trick is less like the muscle “shutter” method octopuses use and more akin (in some ways) to the technology found in color-shifting prismatic paint sometimes used for high-end automotive paint jobs.

 

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When Faced With A Choice Where The Only Options Are The First Choice Or Nothing, It’s Called A?

1 ~ Hobson's Choice
2 ~ Door Number One
3 ~ Model T Option
4 ~ Fool's Dilemma

Spoiler

Answer: 1 ~ Hobson’s Choice

https://www.howtogeek.com/trivia/when-faced-with-a-choice-where-the-only-options-are-the-first-choice-or-nothing-its-called-a/?answer=1

Whether or not you knew the formal name for the scenario was “Hobson’s Choice”, it’s likely you’ve been faced with one before. A Hobson’s choice is any situation where there is an illusion of choice, but ultimately, the only free will decision is to accept the offered option or to walk away. Many a parent over the years has presented their child with such a choice at the dinner table, as in “You can eat your meatloaf or you can go to bed hungry.” or a thousand variations of such ultimatums.

The name of the choice is said to have originated with the 17th century English stable owner Thomas Hobson. He operated a large livery in Cambridge, England that housed around forty horses. Knowing that patrons would always pick what they felt was the best horse from among the available options (which would lead to delays as well as certain horses becoming overworked), he adopted a very simple policy. You accepted the horse in the first occupied stall closest to the door or you got no horse at all.

The stable was popular and although Hobson made no effort to attach his name to his take-it-or-leave-it attitude, patrons of his stable began referring to situations where they had a single choice or none at all as a Hobson’s choice and the name stuck.

 

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