11 August 2020

This asteroid has $16 quintillion USD of metal

"The iron found in the asteroid 16 Psyche alone is worth an estimated $10 quintillion, and according to NASA, if we could extract all of the minerals in the asteroids between the orbits of Mars and Jupiter, the total value would be enough to give every person on Earth about $100 billion."

Photo via.

Make use of your local library

 YouTube link.

TYWKIWDBI  loves libraries.  So we'll share this PSA for a Texas public library, found by John Farrier and posted at Neatorama.

Waiting for a package from UPS ?


It may take a while.  In a local news story from California, a woman visits the local UPS office looking for a delayed package.  She was directed to an outdoor lot and told to look "in the pile."

Some of those packages had been sitting there for weeks

Remember this story when you encounter news about efforts to hobble or dismantle the U.S. Postal System in favor of "more efficient" private enterprise.

Horror story video here

It's the Onion

 

The principal difference from reality is that The Onion is humorous.

10 August 2020

Giant sequoia (human for scale)


The image (via) is an old one (probably from a linen postcard).  Posted today because it brings back pleasant memories of a trip to San Francisco in the 1970s for a medical conference.  After my presentation was finished, a couple friends and I rented a car to drive to the Muir Woods.  I had only hard-soled dress shoes, but managed to get far enough back in the park to be away from tourists and sit for a while in absolute awe at the magnificence of these trees.  It's like visiting the Grand Canyon, or maybe the an ocean for a first time, or one's first dark-sky view of the Milky Way - experiencing in person something you've seen in photos hundreds of times, and you know it's big - really big - but when you are there your brain's reaction is "OMG I never realized..."

"Fortunetelling at Christmastide"

 Mykola Kornylovych Pymonenko, Fortune-Telling on Christmastide. 1888

I found the image above in the Carpathian folk tumblr (where there are lots of interesting pix).  At the artist's Wikipedia entry I found that the painting is at the State Russian Museum in Saint Petersburg.

The young girls are shadowcasting by candlelight, holding something (a coin?) in the other hand.  Are any readers familiar with this custom and able to shed some light on the process or its history?

Reposted from 2015 to accompany the updated post from earlier today about Russian art.

Pondering the reopening of schools - updated. And re-updated.


Addendum:
This perceptive and incisive comment from a reader who responded to another reader's comment that the CDC recommends reopening schools -
"the CDC recommends re-opening schools" 
The link you provide actually doesn't say so. It explains why schools are good for kids, but nobody is disputing that. 
It also says: 
The best available evidence from countries that have opened schools indicates that COVID-19 poses low risks to school-aged children, at least in areas with low community transmission, and suggests that children are unlikely to be major drivers of the spread of the virus. 
Where the key phrase is: in areas with low community transmission, which is a condition met in few communities in the US at the moment. the document fails to point this out. 
And it concludes with the obvious statement: Reopening schools creates opportunity to invest in the education which is also a statement nobody argues about. 
In conclusion, the document discussed the absolutely uncontroversial point that reopening schools is good for kids. It shuffles the necessary condition for reopening school safely to a subordinate phrase, and glosses over the fact that few communities in the US meet that condition. 
It's a document carefully written to appear to be saying the opposite of what it actually says.
And I will add I that I am so disappointed - and embarrassed - that the CDC, which I used to have great respect for during my years in academia, has now been reduced to a political tool by the Trump administration, releasing statements to support the GOP position of aggressively reopening the economy and the schools.

The CDC document linked above is truly deceptive.  And dangerous, because it is being quoted widely.

Addendum:
Reposted from two weeks ago to add these scary observations from a discussion thread about the schoolgirl who received threats for sharing a photo of schoolmates crowding a hallway not wearing masks:
"My wife is a teacher here in Texas for a large high school. She showed me the new handbook for teachers this year as they plan on bringing kids into the classroom and it’s honestly idiotic. Teachers are now responsible for purchasing all disinfecting agents, having extra masks for kids if they lose theirs/ break them. They have to buy their own temperature guns and check the temp of every child that walks into their class in every period. They’ll be live streaming (?) and are going to be monitored to make sure they are disinfecting surfaces every 15 minutes."
The hygiene theater is the cherry on the cake.

And these comments from an interview with a special-ed teacher in a small Oklahoma town:
So will kids be required to stay 6 feet apart? 
There’s no way you can do that. The classrooms are too small. There are like 25 kids in a class. And the other thing is, we’re in a low-income area where parents are working essential jobs. The parents don’t have college degrees and they’re working minimum wage or slightly above that, and they get penalized if they stay home with a sick kid. So it is very common for kids to come to school sick in a normal year
If a kid came into your classroom sick, are you empowered to say, “Come back when you’re feeling better”? 
No, I would have no power. I would send them to the office and if the nurse was in the building—and that’s another thing: We have two nurses in our school district for 2,400 kids in five buildings. And I’m sure there are no funds to hire any more.

But last month he said he loved masks ...


Trump has said "I'm all for masks.  I think masks are good."  But of course that was last month...
"Donald Trump was loudly cheered by guests at one of his golf clubs when he told the media they were not required to wear face masks because they were attending a “political event”.
A reporter asked why this event in New Jersey wasn't following the state guidelines for disease prevention...
Because it’s a political activity – they have exceptions for political activity. And it’s also a peaceful protest,” the president said, as the crowd stopped booing the questioner and began cheering Mr Trump’s response. 
“You have an exclusion. The law says peaceful protest or political activity. You could call this a political activity but I call it a peaceful protest, because they heard you were coming.” 
He added: “And they know the news is fake. They understand it better than anybody.”
In fact, the state guidelines make exception only for health reasons, children under age 2, and high-energy sports.

God is puzzled

Portuguese man o' war for dinner?


Actually blueberry pierogi, but the color scheme brings back unpleasant memories of red stripes across my ankle.

08 August 2020

Math puzzle


The painting above reportedly dates from the 1800s.
It is put on display in Russian most prominent galleries “Tretiakovka” so anyone can check it there by themselves. It shows a scene from a study process in a village school back then. There is a teacher and a bunch of children. Then all attention goes to the blackboard: It has some task for the kids that seem to puzzle them, but that’s just a temporary confusion.  They all look to be ready for the challenge. The name of this art masterpiece is something like “Oral maths test in village school”...
I can't vouch for any of the above, but the Tretyakov Gallery has an immense collection of Russian fine arts, and I see no reason for the painting not to be valid.

But I can vouch for the math puzzle.  You can click to enlarge the painting, but it's probably easier to reproduce it here:


And it CAN be done in one's head without too much difficulty.

Found at English Russia.

Update:  I am recurrently astounded by the breadth of knowledge of TYWKIWDBI readers.  Today Hexmaster identified the painting and the artist - "The painting is called "Counting in their heads". It was made by Nikolay Bogdanov-Belsky in 1895" - and provided a link to the painting's entry in the Russian Wikipedia.

Reposted from 2010 to add this image of another painting by the same artist:


Entitled "At the School Doors" (1897).  I'm not sure from the context if the boy has been excluded from a school, or is just arriving at the schoolroom.

Leafcutter ant nest in Brazil


Humans for scale.  Via.

"This has never been done before"

"During a Friday evening press conference at his Bedminster golf course, the esteemed President Donald J. Trump finally announced a momentous step in the sweeping healthcare reform plan he's been promising for years:
"Over the next two weeks I’ll be pursuing a major executive order requiring health insurance companies to cover all preexisting conditions for all companies. That's a big thing. I've always been very strongly in favor. We have to cover pre-existing conditions so we will be pursuing a major executive order requiring health insurance companies to cover all pre-existing conditions for all of its customers. This has never been done before."
The decade-old Affordable Care Act that already did this was not available for comment." 
From the POTUS who said "Nobody knew health care could be so complicated."  Text from BoingBoing.

2 shades of green


Seeking advice from knowledgeable gardeners out there.  This spring we purchased a couple flats of pepper plants from a local garden store, then potted them up in containers (because the soil under the lawn is a typical suburban clay-gravel mix under the decorative inch of topsoil).

But there was a glitch.  This year we bought some new pots and didn't notice that the new ones lacked drainage holes in the bottom.  After an initial watering and a week of recurrent rain, the seedlings in those pots were swimming in a soil/water soup that couldn't be poured out without losing the seedlings.  So we moved those pots under the screen porch where they wouldn't receive any more rain.

Somewhat surprisingly, most of the plants survived, and have wound up looking quite different.  The top photo shows the ones in full sun in the back yard (mulched with marsh hay).  The peppers are forming nicely and on schedule, but the leaves look rather pale green.

Here are the pots that have been sitting under the screen porch for the past couple months:


Some died off (drowned, apparently), but these others are maturing and seem to be a week or two "behind schedule" in flowering and fruiting.  But the curious feature is how much more deeply green their leaves are. (The photos may be slightly distorted because of the difference in ambient light, but the difference is real).

Why so different?  I don't know.  It seems statistically unlikely that the ones in the pots are from different flats/different strains of peppers.  My instinct tells me that pale leaves represent nutritional deficiency of some type, but those out in the yard were planted in Miracle-Gro potting mix, which should have a superabundance of minerals for these modest-sized plants.  Does repeated rain and watering wash out those additives from the potting mix when used outdoors?

Or are the under-deck dark-leaved plants intensifying their chlorophyll production because they are situated where they receive only indirect light?

Some reader out there may know.  I'm just an English major blundering through the practicalities of life.

06 August 2020

50 shades of green

I have been authoring fewer posts for TYWKIWDBI in recent months, in part because surfing the internet has become so relentlessly depressing.  When I need therapy, I escape to the outdoors, and with travel options more limited, I've been spending more time at the University of Wisconsin arboretum.  This week instead of exploring the prairie or wildflower-rich areas, I headed to the evergreen collections.
I know there are some who feel that pines and other non-deciduous plants are not colorful enough.  To them I would offer the observation of that great philosopher, Lorne Malvo, who noted that the human eye can perceive more shades of green than any other color.
Whether that is true or not is irrelevant, because to my eye the beauty of evergreens lies not in their color, but in their remarkable variety of conformations and textures.  If I were entertaining a visually-impaired friend, this is the section of the arboretum that I would bring them to.

Having said that, I'll be quiet now and let you browse on your own through the following gallery:
As I left I saw these two sandhill cranes.  They were dancing and bumping chests, but as I drew nearer they reverted back to feeding.
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