24 August 2018

Concentric circles




Top image hat tip to Alex Santoso, who found this excellent optical illusion on Twitter and posted it at Neatorama in 2012.  Reposted to add the bottom one, via.  The two illusions are based on the same principles; I believe the lower one was just modified to bring the inner circle closer to the outer one.

German traffic jam with open center of the road

"When traffic comes to a complete stop in Germany, the drivers, (by law) must move towards the... side to create an open lane for emergency vehicles."
The open lane is a "Rettungsgasse" (rescue lane), explained here (auf English).

"Big oil asks government to protect it from climate change"

You can't make this up.  And it's not The Onion.
As the nation plans new defenses against the more powerful storms and higher tides expected from climate change, one project stands out: an ambitious proposal to build a nearly 60-mile "spine" of concrete seawalls, earthen barriers, floating gates and steel levees on the Texas Gulf Coast.

Like other oceanfront projects, this one would protect homes, delicate ecosystems and vital infrastructure, but it also has another priority — to shield some of the crown jewels of the petroleum industry, which is blamed for contributing to global warming and now wants the federal government to build safeguards against the consequences of it.

The plan is focused on a stretch of coastline that runs from the Louisiana border to industrial enclaves south of Houston that are home to one of the world's largest concentrations of petrochemical facilities, including most of Texas' 30 refineries, which represent 30 percent of the nation's refining capacity.

Texas is seeking at least $12 billion for the full coastal spine, with nearly all of it coming from public funds. Last month, the government fast-tracked an initial $3.9 billion for three separate, smaller storm barrier projects that would specifically protect oil facilities...

Normally outspoken critics of federal spending, Texas Sens. John Cornyn and Ted Cruz both backed using taxpayer funds to fortify the oil facilities' protections and the Texas coast. Cruz called it "a tremendous step forward."..

The proposals approved for funding originally called for building more protections along larger swaths of the Texas coast, but they were scaled back and now deliberately focus on refineries...

Oil and chemical companies also pushed for more protection for surrounding communities to shield their workforces...

Texas has not tapped its own rainy day fund of around $11 billion. According to federal rules, 35 percent of funds spent by the Army Corps of Engineers must be matched by local jurisdictions, and the GOP-controlled state Legislature could help cover such costs. But such spending may be tough for many conservatives to swallow.

Texas "should be funding things like this itself," said Chris Edwards, an economist at the libertarian Cato Institute. "Texans are proud of their conservatism, but, unfortunately, when decisions get made in Washington, that frugality goes out the door."

22 August 2018

Food porn


These two lobster rolls on buttered toasted buns are discussed in this thread at the Food Porn subreddit.

The return of the fifth plague visited upon the Egyptians

For most of us, anthrax evokes fearful memories of white powder in envelopes. The disease, however, is an ancient one. God’s fifth plague upon the Egyptians — ‘‘Behold, the hand of the Lord is upon thy cattle which is in the field, upon the horses, upon the asses, upon the camels, upon the oxen, and upon the sheep: there shall be a very grievous murrain,” Moses told Pharaoh — may well have been an anthrax outbreak. The same goes for Apollo’s bane upon the Greeks at the beginning of the Iliad. (Homer dubbed the disease “the burning wind of plague.”) Perhaps the most striking description from antiquity of what we now know as Bacillus anthracis comes from Virgil’s Georgics:
Nor was the manner of dying a simple matter: 
After the thirsty slake-seeking fever had gone 
All through the veins and withered the pitiful limbs, 
Then a fluid welled up in the suffering body, and 
Piece by piece absorbed the melting bones. 
B. anthracis is a cruel organism. In their passive form, the bacteria live as hard, oval-shaped spores with thick, nearly indestructible walls that allow them to survive for decades. When the spores colonize a victim’s bloodstream, they enter a vegetative state, dissolving their walls and gathering into neat chains that Robert Koch, the nineteenth-century German scientist whose pioneering work helped identify the disease, described as “graceful, artificially ordered strings of pearls.” In order to survive, the bacteria must kill the host and reproduce inside it before escaping back into the world and returning to a resting state.

Anthrax bacteria produce two lethal toxins in tandem, akin to those that cause tetanus and cholera. The process tends to be swift, and the chances of fatality high. The early symptoms resemble those of the common flu: your head begins to ache; your temperature rises; a general sense of weakness envelops your body; your stomach starts rumbling; you begin to cough incessantly. Then things get serious: you may go into seizures; your organs begin failing; boils break out across your skin, swelling red pustules with a trademark black center. In the fifth century bc, Hippocrates dubbed the disease anthrakes, from the ancient Greek for “charcoal.” 

The disease has triumphed once the blood begins spilling from your orifices. When the medical examiners or the veterinarians cut you open, they will find that your blood has gone black, and that certain organs, particularly the spleen, have turned into masses of melting flesh.
Now the melting of the Siberian permafrost is unleashing anthrax bacilli that have been frozen there for centuries.  Vast herds of reindeer are being decimated and a way of life destroyed for native subarctic peoples.  Details in a longread at Harper's Magazine.

21 August 2018

Refreshing an iconic barn in central Wisconsin


I first reported on the remarkable barn of the Sonnenberg family back in 2013, updating with the above photo in 2015.  This year it was time to repaint the barn, so I returned to meet old friends and document the process.


The first step had already been undertaken by the family, who had contracted with a local Amish family to repaint the barn.  That required removal of the butterflies and the use of some heavy equipment to get them down and put them back up.


While one crew worked at the barn, others gathered in the front yard to get the butterfly appliques ready.


The butterflies had been repainted during this past winter.  Here are the larger ones (Red Admiral, Mourning Cloak, Painted Lady, Buckeye, swallowtails, fritillaries, etc.  All of the wooden appliques had been hand-drawn and cut at a scale of one foot to one inch of real life size.  The hand-repainting was done by family members, neighbors, and friends from the local church, who gathered this past weekend for the festivity of remounting them on the newly-painted barn.


In the shade of the front yard trees, screws were preset into the wings to speed up the work of the crew at the barn.


I was particularly impressed that some took the time to touch up the screw heads to match the underlying wing color - a detail that would be invisible to people driving by on the road.


The small butterflies (skippers, blues, coppers, hairstreaks) are depicted from the side, with the wings folded up over the torso, in part because they typically rest in that position, and because the undersides of the wings often have the definitive markings.


While that was going on in the front yard, another crew in the garage was repainting the barn quilt.  The Sonnenberg farm is registered as part of the Marquette County Barn Quilt Trail.  This particular barn quilt depicts a stylized butterfly (only half of the quilt in this photo; see top photo for the entire).


As the afternoon went by, the butterflies landed on the wall.  What passers-by on the road don't realize is that the ones on the barn wall are not just Wisconsin butterflies, but 50 different species that have been documented on this particular farm.


That impressive diversity is attributed in part to the owners' decisions to maintain large patches of the farm in native plants and undisturbed habitat.


As the work neared completion, participants gathered in the house and the front yard for an old-fashioned bring-a-dish-to-pass picnic.  Those magnificent trees reflect the age of the farm, which has been in the same family for over a hundred years.  This is the fourth generation to actively farm this land.


The state of Wisconsin recognizes "century farms" that not only have been active for a hundred years, but have been maintained by descendants of a single family during that time.  Wisconsin became a state in 1848, so the program was started in 1948 and currently includes about 9,000 farms located at some of the best sites that pioneering families could find in the early statehood years.


There are lots of ways to spend a summer afternoon, and lots of places to picnic, but not many better than the front yard of a historic farm; it refreshed some now-vague memories of my childhood years visiting grandparents on their old farm in southern Minnesota.  This gathering of friends and family for a communal project reminded me in many ways of a classic "barn-raising."  It was a delightful experience.

20 August 2018

Modern gold mining



Related video here, via BoingBoing.

The Saddle Ridge hoard

The Saddle Ridge Hoard is the name given to identify a treasure trove of 1,427 gold coins unearthed in the Gold Country of the Sierra Nevada, California in 2013. The face value of the coins totaled $27,980, but was assessed to be worth $10 million. In total, the hoard contains $27,460 in twenty-dollar coins, $500 in ten-dollar coins, and $20 in five-dollar coins, all dating from 1847 to 1894. The collection is the largest known discovery of buried gold coins that has ever been recovered in the US.

The owners of the property discovered the trove while they were walking their dog on their property. Although they had reportedly hiked the trail numerous times previously, it was not until they spotted a rust-covered metal can poking out of the ground that they chose to explore further... After Mary noticed the can, John bent down to pick it up, but found that it was stuck in the dirt. He began to use a piece of wood to pry it from the ground. It was so heavy that they believed that the can likely held lead paint. On their walk back to their house, struggling to carry the weight of the find, the lid of the can cracked open, revealing the edge of a single gold coin. They returned to the site with some hand tools to see if they could find anything else. They found another can about a foot away from where the first can was discovered. Although it was partially decomposed due to rust, it held several more coins. They continued to return to the site to look for more coins, primarily digging in the ground and eventually using a metal detector. Their work eventually resulted in the discovery of eight cans filled with 1,427 coins.
I am recurrently frustrated that nobody seems to have buried cans of gold in my woods or along the trails where I hike.

Endolith extremophiles in garnets ?


Interesting possibility:
[S]ometimes garnets are marred with intricate traceries of microscopic tunnels. When Magnus Ivarsson, a geobiologist at the Swedish Museum of Natural History, first saw these tunnels, he wondered what could be making them... In a paper in PLOS One, the researchers are floating a new hypothesis: Perhaps what’s making the tunnels is alive.
The origin of such tunneling has previously been attributed to abiotic processes. Here we present physical and chemical remains of endolithic microorganisms within the tunnels and discuss a probable biological origin of the tunnels. Extensive investigations with synchrotron-radiation X-ray tomographic microscopy (SRXTM) reveal morphological indications of biogenicity that further support a euendolithic interpretation. We suggest that the production of the tunnels was initiated by a combination of abiotic and biological processes, and that at later stages biological processes came to dominate. In environments such as river sediments and oxidized soils garnets are among the few remaining sources of bio-available Fe2+, thus it is likely that microbially mediated boring of the garnets has trophic reasons. Whatever the reason for garnet boring, the tunnel system represents a new endolithic habitat in a hard silicate mineral otherwise known to be resistant to abrasion and chemical attack.
That was from the Abstract; here are a couple excerpts from elsewhere in the manuscript -
Endoliths are microorganisms living inside substrates, mostly rocks and minerals, but also shells, corals or wood [1,2]. Endolithic lineages have been developed among bacteria, fungi, algae, and several animal phyla, and they can either be chemolithoautotrophs (which utilize inorganically stored energy and carbon from inorganic sources like minerals), heterotrophs, or even photoautotrophs (like cyanobacteria) [2,3]. The usual advantage of entertaining an endolithic lifestyle is to obtain residence space—a hard or soft substrate provides a stable and protected environment compared to the outside. However, heterotrophs and chemolithoautotrophs may bore a substrate for trophic reasons as well. Saprophytic fungi, for instance, frequently bore into wood and bone [3], and mycorrhizal fungi are known to bore into soil minerals to mobilize nutrients for symbiotic plants [4,5]. Prokaryotic microborers are believed to bore in volcanic glass to oxidize reduced iron and manganese species for their metabolism [6,7]...

A plethora of microorganisms including bacteria, fungi and algae are known to chemically etch minerals by excreting organic acids or chelators, such as siderophores, that act corrosively to certain minerals or elements..

The organic content of the garnet interior detected by ToF-SIMS and the complex nature of these organic molecules indicate microbial presence within the tunnel system of the garnets... Complex tunnel structures, as in the current study, are not likely to be formed exclusively by chemical dissolution but need the involvement of an agent that controls the direction [6].

The complexity of the networks with anastomoses between branches further rules out AITs. Anastomosis is in fact exclusively a biological feature but anastomosing tunnels produced by endolithic microorganisms have not yet been reported. Thus, even though the tunnels, at least partly, might look non-biogenic at first glance there is no conceivable non-biological mechanism that can explain the formation of them...

The transition from polygonal entrance pits at the mineral surfaces to more circular and tapering tunnels further into the minerals suggests that the tunnels were initiated by abiotic processes or a combination of abiotic and biological processes, which further into the mineral shift to predominantly biological processes.
Many interesting images in the paper, q.v. -

 Explained at the link.

18 August 2018

"Photoshop battle"


The original (above) shows Queen Elizabeth stepping out of her vehicle on a windy day.  I thought these were the two best Photoshopped variants:


Reader WhiteBearStudios found this one -

Infinite loop



Via the Programmer Humor subreddit.   Reminded me of my old joke about Swedes.

CEO-to-worker pay ratios

The chief executives of America’s top 350 companies earned 312 times more than their workers on average last year, according to a new report published Thursday by the Economic Policy Institute.

The rise came after the bosses of America’s largest companies got an average pay rise of 17.6% in 2017, taking home an average of $18.9m in compensation while their employees’ wages stalled, rising just 0.3% over the year...

The outsize pay packets have had a direct impact on people down the corporate ladder, Mishel claims. “The redistribution of wages to the top 5%, but particularly the top 1%, affected the wage growth of the bottom 90%.

“As a mathematical matter, had there not been the redistribution upward – to the top 5%, but which is mostly about to the top 1% – the wages of the bottom 90% could have grown twice as fast as it actually did.”

It'll never amount to anything


Richard and Maurice McDonald preparing to open their first "hamburger bar," California, 1948.  Via the HistoryPorn subreddit

Water worlds are not science fiction

We all know about the wealth of water on Enceladus, but a new study suggests that water-rich planets are not rare.
Scientists have shown that water is likely to be a major component of those exoplanets (planets orbiting other stars) which are between two to four times the size of Earth. It will have implications for the search of life in our Galaxy. The work is presented at the Goldschmidt Conference in Boston.

The 1992 discovery of exoplanets orbiting other stars has sparked interest in understanding the composition of these planets to determine, among other goals, whether they are suitable for the development of life. Now a new evaluation of data from the exoplanet-hunting Kepler Space Telescope and the Gaia mission indicates that many of the known planets may contain as much as 50% water. This is much more than the Earth's 0.02% (by weight) water content...

 Li Zeng continued, "Our data indicate that about 35% of all known exoplanets which are bigger than Earth should be water-rich. These water worlds likely formed in similar ways to the giant planet cores (Jupiter, Saturn, Uranus, Neptune) which we find in our own solar system. The newly-launched TESS mission will find many more of them, with the help of ground-based spectroscopic follow-up. The next generation space telescope, the James Webb Space Telescope, will hopefully characterize the atmosphere of some of them. This is an exciting time for those interested in these remote worlds".
I remember growing up with the concept that the presence of water was what made Earth unique in the cosmos.

Kids in daycare saying goodbye before going to separate elementary schools


Best comment from the Aww subreddit thread: "Little do they know, they’ll reunite in 30 years to defeat a killer clown that dwells in the sewers."
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