Interesting mathematical card trick

I'm going to try to add this to my repetoire.  The video also demonstrates two different fake shuffles, which are useful tools for many tricks, and also one apparently not-to-difficult-to-do way to force a card onto the victim.  After that the trick is a purely mathematical one - which in itself is interesting.

But... one thing I've noticed is that the victim is instructed to create a random number "somewhere in the millions."  But apparently you need to stop the victim at that point because if the random number is in the hundreds of millions, the resultant addend might become too high for the trick to work (i.e. greater than 27).  Perhaps could be compensated for by including a fourth or fifth duplicate card.

Divertimento #194 (gifs)

This is the first linkdump since last December, and I'm starting with the oldest of the hundreds I've saved; some may need to be unmuted (or muted).  Most of these come from Reddit, so I'll include this helpful comment from a reader: "The new Reddit layout excludes the video... [if the video is not visible], either you or they can replace "www.reddit.com" with "old.reddit.com" in the URL to see the video (until Reddit removes that option, at least).

Colorized film of Paris in the 1920s

Shaving a rug

How to roll a burrito

Machine organizes nuts

Cat-created "distressed jeans"

Another way to tie a tie

Preserving the memories (and bodies) of your ancestors

Anti-termite advertisement from Thailand

Snake removal in Malaysia

Spreading gravel on a driveway

How century eggs are made

Overt mysogyny in the SDS in the 1960s

Restoring an old painting

Plush toy contributions for Turkish earthquake victim children

Unusual road intersection

Drone takes out a Russian AWACS

Quality control in the manufacture of shuttlecocks

A malamute takes a nap on a drizzly day

Butcher shows his skills

Roman mosaic in Croatia

How to weave a cross for Palm Sunday
How smart are mirrors?

Motorcycle rider described as a "human crayon"

Traditional dance with a heavy flaming headdress

Repairing a water main without shutting off the water

How Russians "negotiate"

Animals

Lioness attacked by hyenas, saved by pride

Spider molting

Why does this bear straighten up a traffic cone?

A shrew and her whisker of babies

A painted wolf and her puppies

Lineus fuscoviridis, a type of ribbon worm

A cat's reaction time is faster than a snake

Snakes on a plain

Acorn stockpile is vandalized (post says squirrel; I suspect woodpecker)

Crocodiles can gallop (for short distances)

Newborn alpaca

Silverbacks studying a caterpillar

Ants stealing a golden bracelet

Shoebill stork clatters its beak

Gorilla walking upright

Raccoon hides in a drain

A dog running

Mother hen brooding her clutch

Canine babysitter

Goat enjoys inhaling smoke

Scorpions (presumably at a farm - not an "abandoned house")

Bearded vultures eat bones whole

Newly discovered "spikey" crab

Feeding guinea pigs

Nature and Science

How the human radius twists over the ulna

Full rotation of the moon via from NASA's Lunar Reconnaissance Orbiter

Growing citric acid crystals at home

The sludge that collects in the bottom of an acquarium is called mulm

Fossilized dinosaur egg with embryo in situ

An example of cauliflory

Magnet (doesn't) meet copper

Extracting fruit from melocactus
Immense solar farm in China

A "bullet ant glove" generates the "world's worst pain"

Tidal vortex in British Columbia

A "persistence of vision" display

Impressive or clever

Narnia wardrobe leads to a hidden room

London New Year's fireworks (deserves full-screen view)

"Ladder manufacturers hate this one trick"

An interesting way to serve butter

Starting a fire with a hammer

LED drone used for nighttime rescue operations

A "knight's tour" on a chessboard, nicely animated

Creating laser-engraved wooden maps of cities

A beach marble race must be fun to set up

Young man solves three Rubik cubes while juggling them

Making a cube out of staples

Using a liver crab to retrieve a shirt

French bulldog is amazingly good on a skateboard

Human-powered flight

Sports and athleticism

Child spins vigorously without getting dizzy

Seven-ball active-bounced cascade juggling

Water polo viewed from below

1958 NFL championship halftime show

Two young girls with impressive jump rope skills

Parkour jump between buildings

Fails and wtf

Real-life human version of the Frogger game

Woman attacked by tiger in drive-thru animal park

Human heart found in Tennessee road salt stockpile

Noisy parking bollard

Broken ski lift creates mayhem (but no deaths)

Home invasion by boulders

What could go wrong filming yourself for likes

Booby trap in a meth house

Hold my beer while I pour gasoline on this firepit

Perhaps an opportunity to practice braiding hair

Auto insurance may not cover this shitty behavior

Inept arsonist

If you wonder why U.S. trains sometimes derail...

Law enforcement officer steals property while on duty

Passenger punches a flight attendant

Intoxication by bath salts

Car accident with wheel returning to finish the job

Clothes dryer explodes

Unknown malefactors salt a woman's gardens

A demonstration "proving" that meat has been injected with COVID vaccine

CEO cancels all her employees' bonuses, but keeps her own $6+ million one

Humorous or cheerful [for more, see the MadeMeSmile subreddit]

Tiger versus goose

Cat investigates a clothes hamper

Elephant interested in a reporter

"Naughty boy"

Young boy sews a shirt for his dad

Dogs running with prosthetic wheels

Mystery of a toddler's haircut solved

Two young people, madly in love [French original, with audio]

Teacher gives student a drum set

Elderly lady enjoys getting her hair professionally dyed

Another elderly lady gets turquoise hair.  Read the blurb below the video

Saving the best for last: three glorious minutes of happy dogs

The embedded photos are selections from a gallery of images of an abandoned palace, created by Levaronne Lourens, a photographer from the Netherlands who specializes in imaging historical and architectural remains.  His website is here.  I just sampled one of his many galleries.  There are some extraordinary photos at the link.

"The Kubrick Stare"

This analysis from Far Out:

However, the most notable trademark used by the director is the iconic Kubrick stare. The technique can be traced in almost all of his films, although it finds its ‘official’ origins in A Clockwork Orange. Throughout the movie, Malcolm McDowell’s menacing protagonist, Alex DeLarge, glances at the camera with a terrifying stare as if acknowledging the audience’s presence...

However, the iconic look, soon dubbed the ‘Kubrick stare’, shortly became its own form of cinematic shorthand. Other directors began incorporating the stare into their work, and movie buffs quickly recognised examples of the Kubrick stare in films that predated the director’s establishment of the specific gaze. For example, Anthony Perkins’ Norman Bates gives a particularly chilling look in Psycho that many have classed as a Kubrick stare. 

Notable modern uses of the Kubrick stare can be found in David Fincher’s Gone Girl, Christopher Nolan’s The Dark Knight courtesy of Heath Ledger’s Joker, and Jonathan Demme’s The Silence of the Lambs. So, why is there so much significance placed on this iconic stare? It’s a simple look, yet the meaning it conveys is vital. It typically signifies that the character is unstable and deranged. When an actor performs the Kubrick stare, something intense will likely take place. Due to the technique’s recognisable status, when it is used in non-Kubrick-directed films, audiences can still interpret its meaning the same.

And this from TV Tropes:

The Kubrick Stare is really quite simple to pull off. You simply do the following:

1. Tilt head down

2. Look up beneath eyebrows

...and voila! Instant super-creepy look!

It generally signifies that the character in question is either really, really pissed or really, really deranged, and the person they're looking at is really, really screwed. Other times — usually when combined with a smile — it means they're feeling really, really clever (regardless of whether or not they actually are).

A compilation:

"All About Eve"

I can't believe I got to my current oldish age without having seen this extraordinary movie.

The film stars Bette Davis as Margo Channing, a highly regarded but aging Broadway star, and Anne Baxter as Eve Harrington, an ambitious young fan who maneuvers herself into Channing's life, ultimately threatening Channing's career and her personal relationships. The film co-stars George Sanders, Celeste Holm, Gary Merrill, and Hugh Marlowe, and features Thelma Ritter, Marilyn Monroe in one of her earliest roles, Gregory Ratoff, Barbara Bates and Walter Hampden.

All About Eve held its world premiere in New York City on October 13, 1950. Praised by critics at the time of its release, All About Eve received a record 14 nominations at the 23rd Academy Awards, becoming the only film in Oscar history to receive four female acting nominations (Davis and Baxter as Best Actress, Holm and Ritter as Best Supporting Actress). It went on to win six awards, including Best Picture, as well as Best Director and Best Adapted Screenplay, Mankiewicz's second consecutive wins in both categories. Widely considered as among the greatest films of all time, in 1990, it became one of 25 films selected for preservation in the United States Library of Congress's National Film Registry, deemed "culturally, historically, or aesthetically significant". The film was ranked No. 16 on AFI's 1998 list of the 100 best American films.

Watched it tonight on the Criterion Channel.  Outstanding.  Rotten Tomatoes 99%.  Some of the best dialogue I can ever remember hearing.

Interesting foliage

Identified at the whatisthisplant subreddit as a cultivar of Aglaonema Pictum Tricolor.

Uff da

Not the worst in the area.  The heat index in the town of Sullivan, between here and Milwaukee, rose to 126 today.  Almost incredible at this latitude.

A modern long barrow

Another interesting video by Tom Scott, featuring the Soulton Long Barrow which began construction in 2014.  It is a surprisingly beautiful structure, created for educational and spiritual purposes by a young man who speaks with great sensitivity regarding the purpose of the project.

Via Neatorama, because Miss C and John Farrier keep finding all sorts of neat stuff before I do...

Would you notice this bill if you received it in change?

Image cropped for size from the papermoney subreddit, where its extra value is discussed ("Redeemable in gold..." from 1928).

An interesting story about earwax and the human microbiome

I recently chatted with a cousin who is a physician in Florida.  He told me about a patient in their clinic system who for years had been plagued by chronic otitis externa (inflammation of the ear canal; "swimmer's ear").  

Otitis externa may be acute (lasting less than six weeks) or chronic (lasting more than three months). Acute cases are typically due to bacterial infection, and chronic cases are often due to allergies and autoimmune disorders. The most common cause of Otitis externa is bacterial. Risk factors for acute cases include swimming, minor trauma from cleaning, using hearing aids and ear plugs, and other skin problems, such as psoriasis and dermatitis. People with diabetes are at risk of a severe form of malignant otitis externa. Diagnosis is based on the signs and symptoms. Culturing the ear canal may be useful in chronic or severe cases.

This patient had received multiple courses of conventional therapy (cleaning, eardrops, antibiotics etc) with no resolution of the process.  Then one day he returned to clinic in total remission - asymptomatic and with a normal otoscopic exam.  When he was asked what recent treatment had worked, he replied that he had taken some earwax from his "good ear" and placed it in his "bad ear."  After that, the inflammation had subsided and then resolved.  

This is an anecdotal case report, from a series of n=1, and as far as I know is unpublished, but it is clearly suggestive of the importance of the individual's microbioime.  Of note, this event occurred many years before even the concept of the human microbiome had been understood or published.  The patient figured this out on his own.

The best single longread about the human microbiome is probably this one at the National Library of Medicine.

"Missing print error" banknote

I've never seen one like this before.  Described at the papermoney subreddit as having the second print missing ("The face design is printed after the back but before the serial numbers and seals.")  More information at PMG.

Allegations about Ron DeSantis at Guantanamo may be unfounded

Excerpts from "See No Evil", published in Harper's Magazine, March 2023:

From a November discussion on the Eyes Left podcast, between Mike Prysner, an Iraq War veteran, and Mansoor Adayfi, a former detainee at Guantánamo Bay.

mansoor adayfi: As you know, Guantánamo was created out of the legal zone, out of the legal system. Torture was the mechanism of Guantánamo. Torture, abuse, and experimenting on prisoners. We went on a massive hunger strike in 2005. And there was force-feeding. It was torture.

I saw a fucking handsome person come in and he said, “I’m here to ensure that you are treated humanely.”

mike prysner: It was Ron DeSantis?

adayfi: Yes. And, “If you have any problems, if you have any concerns, just talk to me.” We were drowning in that place. So I was like, “Oh, this is cool. This person will raise the concerns.” But it was a piece of the game. What they were doing was looking for what hurts us more so they could use it against us. In 2006, when DeSantis was there, it was one of the worst times at Guantánamo. The administration, the guards, all of them were the worst. They cracked down on us so hard. When they came to break our hunger strike, a team came to us. The head of the team, he was a general. He said, “I have a job. I was sent here to break your fucking hunger strike. I don’t care why you are here. I don’t care who you are. My job is to make you eat. Today we are talking. Tomorrow there will be no talking.” The second day, they brought piles of Ensure and they started force-feeding us over and over again.

prysner: For those who don’t know, Ensure is a thick milky nutritional shake mainly marketed on daytime television to elderly people. It is very hard to drink.

adayfi: Yes, and Ron DeSantis was there watching us. We were crying, screaming. We were tied to the feeding chair. And he was watching. He was laughing. Our stomachs could not hold this amount of Ensure. They poured one can after another. So when he approached me, I said, “This is the way we are treated!” He said, “You should eat.” I threw up in his face. Literally on his face...

prysner: It was well deserved. A JAG lawyer at the time, he would have been well aware this was a violation of international law. There is no question that it was torture.

adayfi: They used to restrain us in that feeding chair. They tied our head, our shoulders, our wrists, our thighs, and our legs. They put some kind of laxative in the feeding liquid. We were shitting ourselves all the time. Then we were moved to solitary confinement—really cold cells. It was like five times a day. It wasn’t feeding. It was just torture. Five times a day. You can’t possibly handle it. They just kept pouring the Ensure. In one week, they broke all the hunger strikers. And he was there. All of them were watching. They also used to beat us. And if we screamed or were bleeding out of our nose and mouth, they were like, “Eat.” The only word they told you was “eat.” We were beaten all day long. Whatever you were doing—they just beat you. Pepper spray, beating, sleep deprivation. That continued for three months. And he was there. He was one of the people that supervised the torture, the abuses, the beatings. All the time at Guantánamo.

prysner: So Ron DeSantis was actually supervising torture, beatings? He was supervising these force-feedings?

adayfi: I’m telling Americans: this guy is a torturer. He is a criminal. He was laughing. And he was there to ensure we were treated humanely.

prysner: He was laughing?

adayfi: Yes, they were looking at us, laughing because we were shitting ourselves. I was screaming and yelling. When your stomach is full of Ensure you can’t breathe. And you are throwing up at the same time. I was screaming. I looked at him and he was actually smiling. Like someone who was enjoying it...

prysner: So he basically was gathering intelligence to tell the interrogators what it was that was impacting you most so they could do it more.

adayfi: I remember when we were talking about the noise in the night. We were talking about the vacuums, the generators, the fans, and everything. And they brought more stuff.

prysner: You told DeSantis this and then they increased the noise?

adayfi: They increased the noise. And also the food, for example. We told him we don’t eat meat. What the guards did after that is they mixed all the food with meat.

More at the link.  This is unlikely to come up at the Republican debate this week, so I'll present it here.  The mic is open for your comments; please keep them civil.

Addendum:  Related onnline articles from the mainstream media -

The Guardian, April 2023 "questions haunt the Florida governor"

Rolling Stone, July 2023 "documentary about this has been cancelled"

Forbes, June 2023 "Showtime pulls show about this"

The Hill, April 2023 "DeSantis fumes, calls this 'totally bullshit'"

Addendum:  DeSantis' military service came up during the debate, during which he said he was deployed "with the Navy SEALs."  The Daily Beast clarified that..

"DeSantis also spent time during his JAG career stationed at the U.S. Navy base in Guantanamo Bay, Cuba, where he was an assistant urinalysis coordinator."

Addendum September 24: "A former prisoner’s story of mistreatment at the hands of Ron DeSantis made headlines. But The New York Times found no evidence to back it up... an examination of military records and interviews with detainees’ lawyers and service members who served at the same time as Mr. DeSantis found no evidence to back up the claims. The New York Times interviewed more than 40 people who served with Mr. DeSantis or around the same time and none recalled witnessing or even hearing of any episodes like the ones Mr. Adayfi described."  More information at The New York Times.

World-class yo-yo champion

His attitude onstage is described as "invincible endboss behavior."  New word for me. 

Robots do the mashed potato

When they replace humans, this will be their victory dance.

If Winnie the Pooh were in a school shooting...

From the August 2023 issue of Harper's Magazine.

Diagnosing scabies with a "burrow ink test"

"... when a papule on the wrist was covered with a purple skin marker (Panel B) and then wiped with an alcohol swab, an ink-filled skin burrow became visible (Panel C). On the basis of this positive “burrow ink test,” a diagnosis of scabies was made. Scabies is a pruritic skin infestation caused by Sarcoptes scabiei var. hominis, the only mite known to burrow into the stratum corneum. The burrow ink test is a simple, rapid, and inexpensive method to visualize the pathognomonic burrows."

This was new to me.  You learn something every day.  The full case report is at The New England Journal of Medicine.