See Every Nuclear Explosion in History: 2153 Blasts from 1945–2015

There have been more than 2,000 nuclear explo­sions in all of his­to­ry — which, in the case of the tech­nol­o­gy required to det­o­nate a nuclear explo­sion, goes back only 76 years. It all began, accord­ing to the ani­mat­ed video above, on July 16, 1945, with the nuclear device code-named Trin­i­ty. The fruit of the labors of the Man­hat­tan Project, its explo­sion famous­ly brought to the mind of the­o­ret­i­cal physi­cist Robert J. Oppen­hemier a pas­sage from the Bha­gavad Gita: “Now I am become Death, destroy­er of worlds.” But how­ev­er rev­e­la­to­ry a spec­ta­cle Trin­i­ty pro­vid­ed, it turned out mere­ly to be the over­ture of the nuclear age.

Cre­at­ed by Ehsan Rezaie of Orbital Mechan­ics, the video offers a sim­ple-look­ing but decep­tive­ly infor­ma­tion-rich pre­sen­ta­tion of every nuclear explo­sion that has so far occurred. It belongs to a per­haps unlike­ly but nev­er­the­less deci­sive­ly estab­lished genre, the ani­mat­ed nuclear-explo­sion time-lapse, of which we’ve pre­vi­ous­ly fea­tured exam­ples from Busi­ness Insid­er’s Alex Kuzoian and artist Isao Hasi­mo­to here on Open Cul­ture.

The size of each cir­cle that erupts on the world map indi­cates the rel­a­tive pow­er of the explo­sion in its loca­tion (all infor­ma­tion also pro­vid­ed in the scrolling text on the low­er left); those det­o­nat­ed under­ground appear in yel­low, those det­o­nat­ed under­wa­ter in blue, and those det­o­nat­ed in the atmos­phere in red.

Trin­i­ty cre­at­ed an atmos­pher­ic explo­sion above New Mex­i­co’s Jor­na­da del Muer­to desert. (Oth­er­wise Oppen­heimer would­n’t have been able to wit­ness it change the world.) So did Lit­tle Boy and Fat Man, the bombs dropped on Japan in World War II. Those remain the only det­o­na­tions of nuclear weapons in com­bat, and thus the nuclear explo­sions every­one knows, but they, too, rep­re­sent only the begin­ning. As the Cold War sets in, some­thing of a test­ing vol­ley emerges between the Unit­ed States and the Sovi­et Union, cul­mi­nat­ing in the colos­sal red dot of 1961’s Tsar Bom­ba, still the most pow­er­ful nuclear weapon ever test­ed. With the USSR long gone today, the explo­sions have only slowed. But in recent years, as the data on which this video is based indi­cates, nuclear test­ing has turned into a one-play­er game — and that play­er is North Korea.

Relat­ed Con­tent:

Every Nuclear Bomb Explo­sion in His­to­ry, Ani­mat­ed

53 Years of Nuclear Test­ing in 14 Min­utes: A Time Lapse Film by Japan­ese Artist Isao Hashimo­to

200 Haunt­ing Videos of U.S. Nuclear Tests Now Declas­si­fied and Put Online

Watch Chill­ing Footage of the Hiroshi­ma & Nagasa­ki Bomb­ings in Restored Col­or

U.S. Det­o­nates Nuclear Weapons in Space; Peo­ple Watch Spec­ta­cle Sip­ping Drinks on Rooftops (1962)

J. Robert Oppen­heimer Explains How He Recit­ed a Line from Bha­gavad Gita–“Now I Am Become Death, the Destroy­er of Worlds” — Upon Wit­ness­ing the First Nuclear Explo­sion

Haunt­ing Unedit­ed Footage of the Bomb­ing of Nagasa­ki (1945)

Based in Seoul, Col­in Mar­shall writes and broad­casts on cities, lan­guage, and cul­ture. His projects include the Sub­stack newslet­ter Books on Cities, the book The State­less City: a Walk through 21st-Cen­tu­ry Los Ange­les and the video series The City in Cin­e­ma. Fol­low him on Twit­ter at @colinmarshall or on Face­book.

How Italian Physicist Laura Bassi Became the First Woman to Have an Academic Career in the 18th Century

The prac­tice and priv­i­lege of aca­d­e­m­ic sci­ence has been slow in trick­ling down from its ori­gins as a pur­suit of leisured gen­tle­man. While many a leisured lady may have tak­en an inter­est in sci­ence, math, or phi­los­o­phy, most women were denied par­tic­i­pa­tion in aca­d­e­m­ic insti­tu­tions and schol­ar­ly soci­eties dur­ing the sci­en­tif­ic rev­o­lu­tion of the 1700s. Only a hand­ful of women — sev­en known in total — were grant­ed doc­tor­al degrees before the year 1800. It wasn’t until 1678 that a female schol­ar was giv­en the dis­tinc­tion, some four cen­turies or so after the doc­tor­ate came into being. While sev­er­al intel­lec­tu­als and even cler­ics of the time held pro­gres­sive atti­tudes about gen­der and edu­ca­tion, they were a decid­ed minor­i­ty.

Curi­ous­ly, four of the first sev­en women to earn doc­tor­al degrees were from Italy, begin­ning with Ele­na Cornaro Pis­copia at the Uni­ver­si­ty of Pad­ua. Next came Lau­ra Bassi, who earned her degree from the Uni­ver­si­ty of Bologna in 1732. There she dis­tin­guished her­self in physics, math­e­mat­ics, and nat­ur­al phi­los­o­phy and became the first salaried woman to teach at a uni­ver­si­ty (she was at one time the university’s high­est paid employ­ee). Bassi was the chief pop­u­lar­iz­er of New­ton­ian physics in Italy in the 18th cen­tu­ry and enjoyed sig­nif­i­cant sup­port from the Arch­bish­op of Bologna, Pros­pero Lam­ber­ti­ni, who — when he became Pope Bene­dict XIV — elect­ed her as the 24th mem­ber of an elite sci­en­tif­ic soci­ety called the Benedet­ti­ni.

“Bassi was wide­ly admired as an excel­lent exper­i­menter and one of the best teach­ers of New­ton­ian physics of her gen­er­a­tion,” says Paula Find­len, Stan­ford pro­fes­sor of his­to­ry. “She inspired some of the most impor­tant male sci­en­tists of the next gen­er­a­tion while also serv­ing as a pub­lic exam­ple of a woman shap­ing the nature of knowl­edge in an era in which few women could imag­ine play­ing such a role.” She also played the role avail­able to most women of the time as a moth­er of eight and wife of Giuseppe Ver­at­ti, also a sci­en­tist.

Bassi was not allowed to teach class­es of men at the uni­ver­si­ty — only spe­cial lec­tures open to the pub­lic. But in 1740, she was grant­ed per­mis­sion to lec­ture at her home, and her fame spread, as Find­len writes at Physics World:

 Bassi was wide­ly known through­out Europe, and as far away as Amer­i­ca, as the woman who under­stood New­ton. The insti­tu­tion­al recog­ni­tion that she received, how­ev­er, made her the emblem­at­ic female sci­en­tist of her gen­er­a­tion. A uni­ver­si­ty grad­u­ate, salaried pro­fes­sor and aca­d­e­mi­cian (a mem­ber of a pres­ti­gious acad­e­my), Bassi may well have been the first woman to have embarked upon a full-fledged sci­en­tif­ic career.

Poems were writ­ten about Bassi’s suc­cess­es in demon­strat­ing New­ton­ian optics; “news of her accom­plish­ments trav­eled far and wide,” reach­ing the ear of Ben­jamin Franklin, whose work with elec­tric­i­ty Bassi fol­lowed keen­ly. In Bologna, sur­prise at Bassi’s achieve­ments was tem­pered by a cul­ture known for “cel­e­brat­ing female suc­cess.” Indeed, the city was “jok­ing­ly known as a ‘par­adise for women,’” writes Find­len. Bassi’s father was deter­mined that she have an edu­ca­tion equal to any of her class, and her fam­i­ly inher­it­ed mon­ey that had been equal­ly divid­ed between daugh­ters and sons for gen­er­a­tions; her sons “found them­selves heirs to the prop­er­ty that came to the fam­i­ly through Laura’s mater­nal line,” notes the Stan­ford Uni­ver­si­ty col­lec­tion of Bassi’s per­son­al papers.

Bassi’s aca­d­e­m­ic work is held at the Acad­e­my of Sci­ences in Bologna. Of the papers that sur­vive, “thir­teen are on physics, eleven are on hydraulics, two are on math­e­mat­ics, one is on mechan­ics, one is on tech­nol­o­gy, and one is on chem­istry,” writes a Uni­ver­si­ty of St. Andrew’s biog­ra­phy. In 1776, a year usu­al­ly remem­bered for the for­ma­tion of a gov­ern­ment of leisured men across the Atlantic, Bassi was appoint­ed to the Chair of Exper­i­men­tal Physics at Bologna, an appoint­ment that not only meant her hus­band became her assis­tant, but also that she became the “first woman appoint­ed to a chair of physics at any uni­ver­si­ty in the world.”

Bologna was proud of its dis­tin­guished daugh­ter, but per­haps still thought of her as an odd­i­ty and a token. As Dr. Eleono­ra Ada­mi notes in a charm­ing biog­ra­phy at sci-fi illus­trat­ed sto­ries, the city once struck a medal in her hon­or, “com­mem­o­rat­ing her first lec­ture series with the phrase ‘Soli cui fas vidisse Min­er­vam,’” which trans­lates rough­ly to “the only one allowed to see Min­er­va.” But her exam­ple inspired oth­er women, like Cristi­na Roc­cati, who earned a doc­tor­ate from Bologna in 1750, and Dorothea Erxleben, who became the first woman to earn a Doc­tor­ate in Med­i­cine four years lat­er at the Uni­ver­si­ty of Halle. Such sin­gu­lar suc­cess­es did not change the patri­ar­chal cul­ture of acad­e­mia, but they start­ed the trick­le that would in time become sev­er­al branch­ing streams of women suc­ceed­ing in the sci­ences.

Relat­ed Con­tent: 

Marie Curie Became the First Woman to Win a Nobel Prize, the First Per­son to Win Twice, and the Only Per­son in His­to­ry to Win in Two Dif­fer­ent Sci­ences

Joce­lyn Bell Bur­nell Changed Astron­o­my For­ev­er; Her Ph.D. Advi­sor Won the Nobel Prize for It

Women Sci­en­tists Launch a Data­base Fea­tur­ing the Work of 9,000 Women Work­ing in the Sci­ences

“The Matil­da Effect”: How Pio­neer­ing Women Sci­en­tists Have Been Denied Recog­ni­tion and Writ­ten Out of Sci­ence His­to­ry

The Lit­tle-Known Female Sci­en­tists Who Mapped 400,000 Stars Over a Cen­tu­ry Ago: An Intro­duc­tion to the “Har­vard Com­put­ers”

Real Women Talk About Their Careers in Sci­ence

Josh Jones is a writer and musi­cian based in Durham, NC. Fol­low him at @jdmagness

Watch an Exquisite 19th Century Coffee Maker in Action

Pourover

Cold brew

Sin­gle ori­gin

Cof­fee snob­bery may seem like a recent phe­nom­e­non, but the quest for the per­fect­ly brewed cup has been going on for a very long time.

Behold the Con­ti­nen­tal Bal­anc­ing Siphon, above — a com­plete­ly auto­mat­ic, 19th-cen­tu­ry table top vac­u­um brew­er.

There’s an unmis­tak­able ele­ment of cof­fee mak­ing as the­ater here… but also, a fas­ci­nat­ing demon­stra­tion of phys­i­cal prin­ci­ples in action.

Vin­tage vac­u­um pot col­lec­tor Bri­an Har­ris breaks down how the bal­anc­ing siphon works:

Two ves­sels are arranged side-by-side, with a siphon tube con­nect­ing the two.

Cof­fee is placed in one side (usu­al­ly glass), and water in the oth­er (usu­al­ly ceram­ic). 

A spir­it lamp heats the water, forc­ing it through the tube and into the oth­er ves­sel, where it mix­es with the cof­fee. 

As the water is trans­ferred from one ves­sel to the oth­er, a bal­anc­ing sys­tem based on a coun­ter­weight or spring mech­a­nism is acti­vat­ed by the change in weight. This in turn trig­gers the extin­guish­ing of the lamp. A par­tial vac­u­um is formed, which siphons the brewed cof­fee through a fil­ter and back into the first ves­sel, from which is dis­pensed by means of a spig­ot.

(Still curi­ous? We direct you to Har­ris’ web­site for a length­i­er, more egghead­ed expla­na­tion, com­plete with equa­tions, graphs, and cal­cu­la­tions for sat­u­rat­ed vapor pres­sure and the approx­i­mate tem­per­a­ture at which down­ward flow begins.)

The bal­anc­ing siphon was to 1850’s Paris and Vien­na what Blue Bottle’s three-foot tall Japan­ese slow-drip iced cof­fee-mak­ing devices are to ear­ly 21st-cen­tu­ry Brook­lyn and Oak­land.

Does the fla­vor of cof­fee brewed in a bal­ance siphon mer­it the time and, if pur­chased in a cafe, expense?

Yes, accord­ing to Maria Tin­de­mans, the CEO of Roy­al Paris, whose 24-carat gold and Bacar­rat glass bal­anc­ing siphon retails for between $17,500 and $24,000:

The cof­fee from a syphon can best be described as “crys­tal clear,” with great puri­ty of fla­vor and aro­ma and no bit­ter­ness added by the brew­ing process.

More afford­able bal­anc­ing siphons can be found online, though be fore­warned, all siphons are a bitch to clean, accord­ing to Red­dit.

If you do invest, be sure to up the cof­fee snob­bery by telling your cap­tive audi­ence that you’ve named your new device “Gabet,” in hon­or of Parisian Louis Gabet, whose 1844 patent for a coun­ter­weight mech­a­nism kicked off the bal­anc­ing siphon craze.

via Boing Boing

Relat­ed Con­tent:

How to Make the World’s Small­est Cup of Cof­fee, from Just One Cof­fee Bean

The Life Cycle of a Cup of Cof­fee: The Jour­ney from Cof­fee Bean, to Cof­fee Cup

Wake Up & Smell the Cof­fee: The New All-in-One Cof­fee-Mak­er/Alarm Clock is Final­ly Here!

Ayun Hal­l­i­day is an author, illus­tra­tor, the­ater mak­er and Chief Pri­ma­tol­o­gist of the East Vil­lage Inky zine.  Fol­low her @AyunHalliday

A Dancer Pays a Gravity-Defying Tribute to Claude Debussy

Most dancers have an intu­itive under­stand­ing of physics.

Chore­o­g­ra­ph­er Yoann Bour­geois push­es this sci­ence beyond the stan­dard lifts, leaps, and pirou­ettes, draw­ing on his train­ing at the Cen­tre Nation­al Des Arts du Cirque for a piece mark­ing the cen­te­nary of com­pos­er Claude Debussy’s death, above.

Giv­en the occa­sion, the choice of Clair de Lune, Debussy’s best loved piano work, feels prac­ti­cal­ly de rigueur, but the tram­po­line comes as a bit of a shock.

We may not be able to see it, but it plays such an essen­tial role, it’s tempt­ing to call this solo a pas de deux. At the very least, the tram­po­line is an essen­tial col­lab­o­ra­tor, along with pianist Alexan­dre Tha­rau and film­mak­er Raphaël Wertheimer.

Bour­geois’ expres­sive­ness as a per­former has earned him com­par­isons to Char­lie Chap­lin and Buster Keaton. His chore­og­ra­phy shows that he also shares their work eth­ic, atten­tion to detail, and love of jaw­drop­ping visu­al stunts.

Don’t expect any ran­dom boing­ing around on this tramp’.

For four and a half min­utes, Bour­geois’ every­man strug­gles to get to the top of a stark white stair­case. Every time he falls off, the tram­po­line launch­es him back onto one of the steps — high­er, low­er, the very one he fell off of…

Inter­pret this strug­gle how you will.

Psy­che, a dig­i­tal mag­a­zine that “illu­mi­nates the human con­di­tion through psy­chol­o­gy, philo­soph­i­cal under­stand­ing and the arts” found it to be “an abstract­ed inter­pre­ta­tion of a child­like expe­ri­ence of time.” One view­er won­dered if the num­ber of steps — twelve — was sig­nif­i­cant.

It’s no stretch to con­ceive of it as a com­ment on the nature of life — a con­stant cycle of falling down and bounc­ing back.

It’s love­ly to behold because Bour­geois makes it look so easy.

In an inter­view with NR, he spoke of how his cir­cus stud­ies led to the real­iza­tion that “the rela­tion­ship between phys­i­cal forces” is what he’s most inter­est­ed in explor­ing. The stairs and tram­po­line, like all of his sets (or devices, as he prefers to call them), are there to “ampli­fy spe­cif­ic phys­i­cal phe­nom­e­non”:

In sci­ence, we’d call them mod­els – they’re sim­pli­fi­ca­tions of our world that enable me to ampli­fy one par­tic­u­lar force at a time. Togeth­er, this ensem­ble of devices, this con­stel­la­tion of con­struct­ed devices, ten­ta­tive­ly approach­es the point of sus­pen­sion. And so, this makes up a body of research; it’s a life’s research that doesn’t have an end in itself. 

The rela­tion­ship with phys­i­cal forces has an elo­quent capac­i­ty that can be very big; it has the kind of expres­sion that is uni­ver­sal.

Watch more of Youann Bour­geois’ physics-based chore­og­ra­phy on his YouTube chan­nel.

Relat­ed Con­tent: 

Hear Debussy Play Debussy: A Vin­tage Record­ing from 1913

Quar­an­tined Dancer Cre­ates Shot-for-Shot Remake of the Final Dirty Danc­ing Scene with a Lamp as a Dance Part­ner

One of the Great­est Dances Sequences Ever Cap­tured on Film Gets Restored in Col­or by AI: Watch the Clas­sic Scene from Stormy Weath­er

Ayun Hal­l­i­day is an author, illus­tra­tor, the­ater mak­er and Chief Pri­ma­tol­o­gist of the East Vil­lage Inky zine. Fol­low her @AyunHalliday.

How Richard Feynman’s Diagrams Revolutionized Physics

If you want to under­stand the­o­ret­i­cal physics these days—as much as is pos­si­ble with­out years of spe­cial­ized study—there are no short­age of places to turn on the inter­net. Of course, this was not the case in the ear­ly 1960s when Richard Feyn­man gave his famous series of lec­tures at Cal­tech. In pub­lished form, these lec­tures became the most pop­u­lar book on physics ever writ­ten. Feynman’s sub­se­quent auto­bi­o­graph­i­cal essays and acces­si­ble pub­lic appear­ances fur­ther solid­i­fied his rep­u­ta­tion as the fore­most pop­u­lar com­mu­ni­ca­tor of physics, “a fun-lov­ing, charis­mat­ic prac­ti­cal jok­er,” writes Mette Ilene Holm­nis at Quan­ta mag­a­zine, even if “his per­for­ma­tive sex­ism looks very dif­fer­ent to mod­ern eyes.”

Feynman’s genius went beyond that of “ordi­nary genius­es,” his men­tor, Hans Bethe, direc­tor of the Man­hat­tan Project, exclaimed: “Feyn­man was a magi­cian.” That may be so, but he was nev­er above reveal­ing how he learned his tricks, such that any­one could use his meth­ods, whether or not they could achieve his spec­tac­u­lar results. Feyn­man didn’t only teach his stu­dents, and his mil­lions of read­ers, about physics; he also taught them how to teach them­selves. The so-called “Feyn­man tech­nique” for effec­tive study­ing ensures that stu­dents don’t just par­rot knowl­edge, but that they can “iden­ti­fy any gaps” in their under­stand­ing, he empha­sized, and bol­ster weak points where they “can’t explain an idea sim­ply.”

Years before he became the fore­most pub­lic com­mu­ni­ca­tor of sci­ence, Feyn­man per­formed the same ser­vice for his col­leagues. “With physi­cists in the late 1940s strug­gling to refor­mu­late a rel­a­tivis­tic quan­tum the­o­ry describ­ing the inter­ac­tions of elec­tri­cal­ly charged par­ti­cles,” Holm­nis writes, “Feyn­man con­jured up some Nobel Prize-win­ning mag­ic. He intro­duced a visu­al method to sim­pli­fy the seem­ing­ly impos­si­ble cal­cu­la­tions need­ed to describe basic par­ti­cle inter­ac­tions.” The video above, ani­mat­ed by Holm­nis, shows just how sim­ple it was—just a few lines, squig­gles, cir­cles, and arrows.

Holm­nis quotes Feyn­man biog­ra­ph­er James Gle­ick’s descrip­tion: Feyn­man “took the half-made con­cep­tions of waves and par­ti­cles in the 1940s and shaped them into tools that ordi­nary physi­cists could use and under­stand.” Feyn­man Dia­grams helped make sense of quan­tum elec­tro­dy­nam­ics, a the­o­ry that “attempt­ed to cal­cu­late the prob­a­bil­i­ty of all pos­si­ble out­comes of par­ti­cle inter­ac­tions,” the video explains. Among the theory’s prob­lems was the writ­ing of “equa­tions meant keep­ing track of all inter­ac­tions, includ­ing vir­tu­al ones, a gru­el­ing, hope­less exer­cise for even the most orga­nized and patient physi­cist.”

Using his touch for the relat­able, Feyn­man drew his first dia­grams in 1948. They remain, wrote Nobel Prize-win­ning physi­cist Frank Wilczek, “a trea­sured asset in physics because they often pro­vide good approx­i­ma­tions to real­i­ty. They help us bring our pow­ers of visu­al imag­i­na­tion to bear on worlds we can’t actu­al­ly see.” Learn more about Feyn­man Dia­grams in the video above and at Holm­nis’ arti­cle in Quan­ta here.

Relat­ed Con­tent:

The “Feyn­man Tech­nique” for Study­ing Effec­tive­ly: An Ani­mat­ed Primer

The Feyn­man Lec­tures on Physics, The Most Pop­u­lar Physics Book Ever Writ­ten, Is Now Com­plete­ly Online

What Made Richard Feyn­man One of the Most Admired Edu­ca­tors in the World

Josh Jones is a writer and musi­cian based in Durham, NC. Fol­low him at @jdmagness

Behold the Steampunk Home Exercise Machines from the Victorian Age

The pan­dem­ic has result­ed in a lot of peo­ple rein­vent­ing their fit­ness reg­i­mens, invest­ing in pricey items like Mir­ror and Pelo­ton bikes to turn homes into home gyms.

Per­son­al­ly, we’re sav­ing our pen­nies until some Etsy sell­er repli­cates the mechan­i­cal ther­a­py sys­tems of Dr. Gus­tav Zan­der (1835–1920).

From the mid-19th cen­tu­ry through WWI, these machines were at the fore­front of gym cul­ture. Their func­tion is extreme­ly sim­i­lar to mod­ern strength train­ing equip­ment, but their design exudes a dash­ing steam­punk flair.

If the thing that’s going to help us work off all this sour­dough weight is going to wind up col­o­niz­ing half our apart­ment, we want some­thing that will go with our max­i­mal­ist thrift store aes­thet­ic.

We might even start work­ing out in floor length skirts and three piece suits in homage to Zander’s orig­i­nal devo­tees.

His 27 machines addressed abs, arms, adductors—all the great­est hits—using weights and levers to strength­en mus­cles through pro­gres­sive exer­tion and resis­tance. Spe­cial­ly trained assis­tants were on hand to adjust the weights, a lux­u­ry that our mod­ern world has seen fit to phase out.

Just as 21st-cen­tu­ry fit­ness cen­ters posi­tion them­selves as life­savers of those who spend the bulk of the day hunched in front of a com­put­er, Zander’s inven­tions tar­get­ed seden­tary office work­ers.

The indus­tri­al soci­ety that cre­at­ed this new breed of labor­er also ensured that the Swedish doc­tor’s con­trap­tions would gar­ner acco­lades and atten­tion. They were already a hit in their land of ori­gin when they took a gold medal at Philadelphia’s 1876 Cen­ten­ni­al Exhi­bi­tion.

The flag­ship Ther­a­peu­tic Zan­der Insti­tute in Stock­holm expand­ed, with branch­es in Lon­don and New York City.

The New York Times described the lat­ter as giv­ing the “unini­ti­at­ed observ­er an impres­sion of a care­ful­ly devised tor­ture cham­ber more than of a doc­tor’s office or a gym­na­si­um, both of which func­tions the insti­tute, to a cer­tain degree, fills.”

Sure­ly no more tor­tu­ous than the blood let­tingblis­ter­ing, and purg­ing that were also thought health­ful at the time…

See more of Dr. Gus­tav Zander’s exer­cise machines here.

Relat­ed Con­tent:

The Amaz­ing Franz Kaf­ka Work­out!: Dis­cov­er the 15-Minute Exer­cise Rou­tine That Swept the World in 1904

Walt Whitman’s Unearthed Health Man­u­al, “Man­ly Health & Train­ing,” Urges Read­ers to Stand (Don’t Sit!) and Eat Plen­ty of Meat (1858)

Ayun Hal­l­i­day is an author, illus­tra­tor, the­ater mak­er and Chief Pri­ma­tol­o­gist of the East Vil­lage Inky zine. This month, she appearsas a French Cana­di­an bear who trav­els to New York City in search of food and mean­ing in Greg Kotis’ short film, L’Ourse.  Fol­low her @AyunHalliday.

The Geometry of Sound: Watch Artist Kenichi Kanazawa Make Amazing Geometric Designs Out of Sand, Using Sound Waves Alone

Before our eyes, Japan­ese artist Kenichi Kanaza­wa cre­ates crisp shapes and geo­met­ric pat­terns with no spe­cial tools but sand and sound, the kind of work that at first looks express­ly designed to go viral on social media. But he’s been at it much longer than that: “Orig­i­nal­ly a sculp­tor by trade,” accord­ing to Spoon & Tam­ago’s John­ny Wald­man, “Kanaza­wa began work­ing with steel and sound in 1987 after col­lab­o­rat­ing with the late sound artist Hiroshi Yoshimu­ra. Today, his work pri­mar­i­ly involves ele­ments like sound, vibra­tion and heat: mak­ing the invis­i­ble, vis­i­ble.” Or in oth­er words, using what crit­ic and music Ted Gioia calls, in a tweet of one of Kanaza­wa’s short table­top per­for­mances, “the pow­er of sound to cre­ate order out of chaos.”

Kanaza­wa does­n’t use just any old tables, but spe­cial ones made of steel, the bet­ter to res­onate when he taps and strokes them with his vari­ety of mal­lets. Nor does he use just any old sand, opt­ing instead for either a pure white — for max­i­mum visu­al stark­ness against the black steel — or a set of bright col­ors, as in the video at the top of the post.

What­ev­er its place on the spec­trum, the stuff seems to rearrange itself across the sur­face in response to the tones cre­at­ed by the artist. The strik­ing pre­ci­sion of the effects pro­duced by this inter­ac­tion of sand, steel, and sound gets view­ers won­der­ing what, sci­en­tif­i­cal­ly, is going on here. The under­ly­ing set of phe­nom­e­na has a name: cymat­ics, coined in the 1960s by a Swiss doc­tor named Hans Jen­ny.

In his book Heal­ing Songs, Gioia calls Jen­ny’s study of cymat­ics “the most impres­sive and rig­or­ous inquiry yet made into the nature of vibra­tions and their impact on phys­i­cal objects of var­i­ous sorts.” In such a medi­um sen­si­tive to son­ic vibra­tions, Jen­ny him­self writes, “a pat­tern appears to take shape before the eye and, as long as the sound is spo­ken, to behave like some­thing alive.” This also fair­ly describes Kanaza­wa’s danc­ing sand, whether seen from up close or at a dis­tance. Phys­i­cal­ly speak­ing, sound is, of course, a form of vibra­tion, which is itself a form of motion. But for an observ­er like Jen­ny — an adher­ent of eso­teric philoso­pher Rudolf Stein­er’s anthro­pos­o­phy, a school of thought ori­ent­ed toward the obser­va­tion of the spir­i­tu­al world through sen­so­ry expe­ri­ence — Kanaza­wa’s work would sure­ly have, as it were, much deep­er res­o­nances.

via @Ted­Gioia

Relat­ed Con­tent:

The Geom­e­try of Sound Waves Visu­al­ized

What Does Sound Look Like?: The Audi­ble Ren­dered Vis­i­ble Through Clever Tech­nol­o­gy

The Physics of Play­ing a Gui­tar Visu­al­ized: Metallica’s “Noth­ing Else Mat­ters” Viewed from Inside the Gui­tar

Based in Seoul, Col­in Mar­shall writes and broad­casts on cities, lan­guage, and cul­ture. His projects include the Sub­stack newslet­ter Books on Cities, the book The State­less City: a Walk through 21st-Cen­tu­ry Los Ange­les and the video series The City in Cin­e­ma. Fol­low him on Twit­ter at @colinmarshall, on Face­book, or on Insta­gram.

Trips on the World’s Oldest Electric Suspension Railway in 1902 & 2015 Show How a City Changes Over a Century

Today we take a ride on the world’s old­est elec­tric sus­pen­sion railway—the Wup­per­tal Schwe­be­bahn in Ger­many.

Actu­al­ly, we’ll take two rides, trav­el­ing back in time to do so, thanks to YouTu­ber pwduze, who had a bit of fun try­ing to match up two videos dis­cov­ered online for comparison’s sake.

The jour­ney on the left was filmed in 1902, when this mir­a­cle of mod­ern engi­neer­ing was but a year old.

The train pass­es over a broad road trav­eled most­ly by pedes­tri­ans.

Note the absence of cars, traf­fic lights, and sig­nage, as well as the pro­lif­er­a­tion of green­ery, ani­mals, and space between hous­es.

The trip on the right was tak­en much more recent­ly, short­ly after the rail­way began upgrad­ing its fleet to cars with cush­ioned seats, air con­di­tion­ing, infor­ma­tion dis­plays, LED light­ing, increased access for peo­ple with dis­abil­i­ties and regen­er­a­tive brakes.

An extend­ed ver­sion at the bot­tom of this page pro­vides a glimpse of the con­trol pan­el inside the driver’s booth.

There are some changes vis­i­ble beyond the wind­shield, too.

Now, cars, bus­es, and trucks dom­i­nate the road.

A large mon­u­ment seems to have dis­ap­peared at the 2:34 mark, along with the plaza it once occu­pied.

Field­stone walls and 19th-cen­tu­ry archi­tec­tur­al flour­ish­es have been replaced with bland cement.

There’s been a lot of building—and rebuild­ing. 40% of Wuppertal’s build­ings were destroyed by Allied bomb­ing in WWII.

Although Wup­per­tal is still the green­est city in Ger­many, with access to pub­lic parks and wood­land paths nev­er more than a ten-minute walk away, the views across the Wup­per riv­er to the right are decid­ed­ly less expan­sive.

As Ben­jamin Schnei­der observes in Bloomberg City­Lab:

For the Schwebebahn’s first rid­ers at the turn of the 20th cen­tu­ry, these vis­tas along the eight-mile route must have been a rev­e­la­tion. Many of them would have rid­den trains and ele­va­tors, but the unob­struct­ed, straight-down views from the sus­pend­ed mono­rail would have been nov­el, if not ter­ri­fy­ing.

The bridge struc­tures appear to have changed lit­tle over the last 120 years, despite sev­er­al safe­ty upgrades.

Those steam­punk sil­hou­ettes are a tes­ta­ment to the planning—and expense—that result­ed in this unique mass tran­sit sys­tem, whose ori­gin sto­ry is sum­ma­rized by Elmar Thyen, head of Schwe­be­bah­n’s Cor­po­rate Com­mu­ni­ca­tions and Strate­gic Mar­ket­ing:

We had a sit­u­a­tion with a very rich city, and very rich cit­i­zens who were eager to be social­ly active. They said, ‘Which space is pub­licly owned so we don’t have to go over pri­vate land?… It might make sense to have an ele­vat­ed rail­way over the riv­er.’

In the end, this is what the mer­chants want­ed. They want­ed the emper­or to come and say, ‘This is cool, this is inno­v­a­tive: high tech, and still Pruss­ian.’

At present, the sus­pen­sion rail­way is only oper­at­ing on the week­ends, with a return to reg­u­lar ser­vice antic­i­pat­ed for August 2021. Face masks are required. Tick­ets are still just a few bucks.

Relat­ed Con­tent: 

The Fly­ing Train: A 1902 Film Cap­tures a Futur­is­tic Ride on a Sus­pend­ed Rail­way in Ger­many

Trains and the Brits Who Love Them: Mon­ty Python’s Michael Palin on Great Rail­way Jour­neys

A New Dig­i­tized Menu Col­lec­tion Lets You Revis­it the Cui­sine from the “Gold­en Age of Rail­road Din­ing”

Ayun Hal­l­i­day is an author, illus­tra­tor, the­ater mak­er and Chief Pri­ma­tol­o­gist of the East Vil­lage Inky zine.  Fol­low her @AyunHalliday.

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