“Bike Keeps Family in Stitches”

Carrying four persons and a sewing machine, the world’s weirdest bicycle recently had a tryout in Chicago, Ill. The two-story vehicle, known as the ‘Goofybike,’ is the creation of Charles Steinlauf. It carries the whole Steinlauf family. The inventor rides at the top and guides the contraption by means of a huge automobile steering wheel. Mrs. Steinlauf sits below, operating a sewing machine, while her son pedals behind and her daughter rides on the handlebars in front. When the odd vehicle is at rest, the projecting legs of the sewing machine prevent the lofty cycle from tipping over.

Popular Science, October 1939

Form Before Function

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In 1784 French architect Laurent Vaudoyer introduced a design for a spherical house. The living space is at the “equator,” with a vestibule, dining room, salon, bedrooms, and closets. A pantry, toilets, and dressing rooms are squeezed in rather less conveniently, above and below.

The spherical shape was the point, write Ulrich Conrads and Hans Sperlich in The Architecture of Fantasy. “[O]nly afterwards was an attempt made to arrange the interior of the globe for use.”

vaudoyer house 2

Podcast Episode 256: Lasseter’s Reef

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In 1930 Harold Lasseter claimed he’d discovered an enormous deposit of gold in the remote interior of Australia, and a small group of men set off into the punishing desert in search of a fortune estimated at 66 million pounds. In this week’s episode of the Futility Closet podcast we’ll tell the story of Lasseter’s reef, one of the most enduring legends of the Australian outback.

We’ll also reconsider the mortality rates of presidents and puzzle over an unlocked door.

See full show notes …

Boom!

The town of Glacier View, Alaska, doesn’t get dark enough for fireworks on the Fourth of July. So they drive cars off a cliff.

Directions

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Image: Wikimedia Commons

This is floating on the web — I don’t know who came up with it:

The geographical center of Boston is in Roxbury. Due north of the center is the South End. This is not to be confused with South Boston, which lies directly east from the South End. North of the South End is East Boston, and southwest of East Boston is the North End.

“We say the cows laid out Boston,” wrote Emerson. “Well, there are worse surveyors.”

The Perpetual Diamond

This is bewildering: This diamond isn’t moving, and its luminance and texture are unchanging. Yet when it’s surrounded with very thin edge strips whose luminance changes with respect to the background, the whole diamond seems to move. Using the controls at the bottom, you can even direct the illusion to send the diamond drifting “up,” “down,” “left,” or “right.” But it ain’t moving.

See the paper below for details.

(Oliver J. Flynn and Arthur G. Shapiro, “The Perpetual Diamond: Contrast Reversals Along Thin Edges Create the Appearance of Motion in Objects,” i-Perception 9:6 [2018], 2041669518815708.)

The McGurk Effect

https://www.youtube.com/watch?v=yJ81LLxfHY8

In 1976 psychologist Harry McGurk discovered that seeing a person speak affects our impression of the sound we hear. Faced with conflicting information, the brain seems to make its “best guess” as to what it’s perceiving. In some cases a third sound is produced: When the syllables /ba-ba/ are spoken over the lip movements /ga-ga/, the perception is /da-da/.

This casts doubt on the assumption that the senses operate separately and can be studied in isolation. Psychologists and philosophers are still considering the implications.

(Harry McGurk and John MacDonald, “Hearing Lips and Seeing Voices,” Nature 264:5588 [1976], 746.)

The Apology Paradox

We ought to apologize for what our ancestors did to other people. This requires that we sincerely regret those deeds. But that means that we would prefer that the deeds had not been done, and if this were the case then world history would be significantly different and we ourselves would probably not exist. Yet most of us are glad to be alive. Can we sincerely regret deeds that are necessary to our own existence?

(That’s from La Trobe University philosopher Janna Thompson. She says the best solution is to interpret the apology as regret for this state of affairs. “[T]he regret expressed is that we owe our existence and other things we enjoy to the injustices of our ancestors. Our preference is for a possible world in which our existence did not depend on these deeds.”)

(Janna Thompson, “The Apology Paradox,” Philosophical Quarterly 50:201 [2000], 470-475.)

A New Illusion

Won weight illusion

Get three empty matchboxes and put a weight in one of them. Lift the weighted box on its own, then put it down and lift all three boxes together. In tests by Isabel Won and her colleagues at Johns Hopkins University, 90 per cent of subjects who tried this said that the weighted box lifted on its own felt heavier than the three boxes lifted together.

“[T]he experience was so striking that subjects often spontaneously and astoundedly commented on its impossibility to the experimenter, and even requested to lift the objects again after the experiment was over,” the authors report. “Anecdotally, those subjects reported that the illusion persisted even during these repeated lifts, including when subjects placed all three boxes on their palm and then suddenly removed the two lighter boxes — distilling the phenomenon into a single impossible ‘moment’ wherein removing weight caused the sensation of adding weight.”

“We suggest that the space of impossible experiences is larger than has been appreciated, extending into a new sense modality. … Impossibility can not only be seen, but also felt.” See the paper for details.

(Thanks, Sharon.)

Mail Boat Jumpers

The homes around Wisconsin’s Geneva Lake receive their mail by boat, a tradition begun in 1916. While the boat travels at a steady 5 mph, a “jumper” must jump onto each dock, run to the mailbox, swap the outgoing mail with the incoming, and jump back on board before the boat has traveled out of reach.

They can accomplish all this in as little as 10 seconds — but a typical career also includes one fall into the lake.