How the Hoover Dam Works: A 3D Animated Introduction

When it comes to tourist pil­grim­age sites in the Unit­ed States, the Hoover Dam may not quite rank up there with the Stat­ue of Lib­er­ty, the Lin­coln Memo­r­i­al, Mount Rush­more, the Grand Canyon, or Dis­ney­land. But that’s not due to a lack of impor­tance, nor even a lack of impres­sive­ness. Prop­er appre­ci­a­tion of its man-made majesty, how­ev­er, requires an under­stand­ing of not just the vital func­tion it serves, but the enor­mous task of its con­struc­tion. The guides at the Hoover Dam have been trained to explain just that to its many vis­i­tors, of course, but all of us could ben­e­fit from going in pre­pared with a lit­tle knowl­edge. Watch the hour-long video on the dam’s design and con­struc­tion from Ani­ma­graffs above, and you may be pre­pared with enough knowl­edge to tell the guides a thing or two.

Ani­ma­graffs is the YoT­tube chan­nel of Jacob O’Neal, which we’ve pre­vi­ous­ly fea­tured here on Open Cul­ture for its acclaimed expla­na­tions on a six­teenth-cen­tu­ry explor­er’s sail­ing ship and the Gold­en Gate Bridge, anoth­er icon­ic con­struc­tion project of the Great Depres­sion. Like those, his Hoover Dam video uses detailed 3D mod­els based on seri­ous research, not least into the pro­jec­t’s orig­i­nal design doc­u­ments.

This allows O’Neal to show each ele­ment of the dam and its com­plex sys­tem of sup­port­ing infra­struc­ture in detail and from every angle, as well as in a kind of x‑ray vision. We’ve all seen pho­tographs of the Hoover Dam, and maybe even bought some from its gift shop, but even the most sub­lime aer­i­al view does­n’t reveal as much about its ambi­tion as a look into its inner work­ings.

And the ambi­tion of the Hoover Dam is one aspect guar­an­teed to impress any view­ers. It required thou­sands of work­ers about five years to re-shape the Neva­da and Ari­zona land­scape at a grand enough scale to make pos­si­ble human con­trol of the mighty — and, more to the point, might­i­ly unpre­dictable — Col­orado Riv­er. With its large tur­bines, the engi­neer­ing and instal­la­tion of which O’Neal explains in full, it man­aged to gen­er­ate enough elec­tric­i­ty to repay its con­struc­tion cost of more than $811 mil­lion in today’s dol­lars by 1987, just over 50 years after it opened. And in an achieve­ment almost impos­si­ble to believe today, it opened more than two years ahead of sched­ule. We hear a good deal today about the con­cept of “state capac­i­ty,” and how the U.S. could regain it. At the Hoover Dam, we behold state capac­i­ty quite lit­er­al­ly made con­crete.

Relat­ed Con­tent:

The Incred­i­ble Sto­ry of the Hoover Dam

The Genius Urban Design of Ams­ter­dam: Canals, Dams & Lean­ing Hous­es

How Medieval Islam­ic Engi­neer­ing Brought Water to the Alham­bra

The Genius Engi­neer­ing of Roman Aque­ducts

The Bril­liant Engi­neer­ing That Made Venice: How a City Was Built on Water

Dis­cov­er Ansel Adams’ 226 Pho­tos of U.S. Nation­al Parks (and Anoth­er Side of the Leg­endary Pho­tog­ra­ph­er)

Based in Seoul, Col­in Marshall writes and broad­casts on cities, lan­guage, and cul­ture. He’s the author of the newslet­ter Books on Cities as well as the books 한국 요약 금지 (No Sum­ma­riz­ing Korea) and Kore­an Newtro. Fol­low him on the social net­work for­mer­ly known as Twit­ter at @colinmarshall.

Lynda Barry on How the Smartphone Is Endangering Three Ingredients of Creativity: Loneliness, Uncertainty & Boredom

The phone gives us a lot but it takes away three key ele­ments of dis­cov­ery: lone­li­ness, uncer­tain­ty and bore­dom. Those have always been where cre­ative ideas come from. — Lyn­da Bar­ry

In the spring of 2016, the great car­toon­ist and edu­ca­tor, Lyn­da Bar­ry, did the unthink­able, pri­or to giv­ing a lec­ture and writ­ing class at NASA’s God­dard Space Flight Cen­ter.

She demand­ed that all par­tic­i­pat­ing staff mem­bers sur­ren­der their phones and oth­er such per­son­al devices.

Her vic­tims were as jan­gled by this prospect as your aver­age iPhone-addict­ed teen, but sur­ren­dered, agree­ing to write by hand, anoth­er anti­quat­ed notion Bar­ry sub­scribes to:

The delete but­ton makes it so that any­thing you’re unsure of you can get rid of, so noth­ing new has a chance. Writ­ing by hand is a rev­e­la­tion for peo­ple. Maybe that’s why they asked me to NASA – I still know how to use my hands… there is a dif­fer­ent way of think­ing that goes along with them.

Barry—who told the Onion’s AV Club that she craft­ed her book What It Is with an eye toward bored read­ers stuck in a Jiffy Lube oil-change wait­ing room—is also a big pro­po­nent of doo­dling, which she views as a cre­ative neu­ro­log­i­cal response to bore­dom:

Bor­ing meet­ing, you have a pen, the usu­al clowns are yakking. Most peo­ple will draw some­thing, even peo­ple who can’t draw. I say “If you’re bored, what do you draw?” And every­body has some­thing they draw. Like “Oh yeah, my lit­tle guy, I draw him.” Or “I draw eye­balls, or palm trees.” … So I asked them “Why do you think you do that? Why do you think you doo­dle dur­ing those meet­ings?” I believe that it’s because it makes hav­ing to endure that par­tic­u­lar sit­u­a­tion more bear­able, by chang­ing our expe­ri­ence of time. It’s so slight. I always say it’s the dif­fer­ence between, if you’re not doo­dling, the min­utes feel like a cheese grater on your face. But if you are doo­dling, it’s more like Bril­lo.  It’s not much bet­ter, but there is a dif­fer­ence. You could han­dle Bril­lo a lit­tle longer than the cheese grater.

Meet­ings and class­rooms are among the few remain­ing venues in which screen-addict­ed moths are expect­ed to force them­selves away from the phone’s invit­ing flame. Oth­er settings—like the Jiffy Lube wait­ing room—require more ini­tia­tive on the user’s part.

Once, we were keen­er stu­dents of minor changes to famil­iar envi­ron­ments, the books strangers were read­ing in the sub­way, and those strangers them­selves. Our sub­se­quent obser­va­tions were known to spark con­ver­sa­tion and some­times ideas that led to cre­ative projects.

Now, many of us let those oppor­tu­ni­ties slide by, as we fill up on such fleet­ing con­fec­tions as fun­ny videos and all-you-can-eat serv­ings of social media.

It’s also tempt­ing to use our phones as defac­to shields any time social anx­i­ety looms. This dodge may pro­vide short term com­fort, espe­cial­ly to younger peo­ple, but remem­ber, Bar­ry and many of her car­toon­ist peers, includ­ing Daniel Clowes, Simon Hansel­mann, and Ariel Schrag, toughed it out by mak­ing art. That’s what got them through the lone­li­ness, uncer­tain­ty, and bore­dom of their mid­dle and high school years.

The book you hold in your hands would not exist had high school been a pleas­ant expe­ri­ence for me… It was on those qui­et week­end nights when even my par­ents were out hav­ing fun that I began mak­ing seri­ous attempts to make sto­ries in comics form.

Adri­an Tomine, intro­duc­tion to 32 Sto­ries

Bar­ry is far from alone in encour­ag­ing adults to peel them­selves away from their phone depen­den­cy for their cre­ative good.

Pho­tog­ra­ph­er Eric Pickersgill’s Removed imag­ines a series of every­day sit­u­a­tions in which phones and oth­er per­son­al devices have been ren­dered invis­i­ble. (It’s worth not­ing that he removed the offend­ing arti­cles from the mod­els’ hands, rather that Pho­to­shop­ping them out lat­er.)

Com­put­er Sci­ence Pro­fes­sor Calvin Newport’s book, Deep Work, posits that all that shal­low phone time is cre­at­ing stress, anx­i­ety, and lost cre­ative oppor­tu­ni­ties, while also doing a num­ber on our per­son­al and pro­fes­sion­al lives.

Author Manoush Zomorodi’s TED Talk on how bore­dom can lead to bril­liant ideas, below, details a week­long exper­i­ment in bat­tling smart­phone habits, with lots of sci­en­tif­ic evi­dence to back up her find­ings.

But what if you wipe the slate of dig­i­tal dis­trac­tions only to find that your brain’s just… emp­ty? A once occu­pied room, now devoid of any­thing but dim­ly recalled memes, and gen­er­al­ized dread over the state of the world?

The afore­men­tioned AV Club inter­view with Bar­ry offers both encour­age­ment and some use­ful sug­ges­tions that will get the tem­porar­i­ly par­a­lyzed mov­ing again:

I don’t know what the strip’s going to be about when I start. I nev­er know. I often­times have—I call it the word-bag. Just a bag of words. I’ll just reach in there, and I’ll pull out a word, and it’ll say “ping-pong.” I’ll just have that in my head, and I’ll start draw­ing the pic­tures as if I can… I hear a sen­tence, I just hear it. As soon as I hear even the begin­ning of the first sen­tence, then I just… I write real­ly slow. So I’ll be writ­ing that, and I’ll know what’s going to go at the top of the pan­el. Then, when it gets to the end, usu­al­ly I’ll know what the next one is. By three sen­tences or four in that first pan­el, I stop, and then I say “Now it’s time for the draw­ing.” Then I’ll draw. But then I’ll hear the next one over on anoth­er page! Or when I’m draw­ing Marlys and Arna, I might hear her say some­thing, but then I’ll hear Marlys say some­thing back. So once that first sen­tence is there, I have all kinds of choic­es as to where I put my brush. But if noth­ing is hap­pen­ing, then I just go over to what I call my decoy page. It’s like decoy ducks. I go over there and just start mess­ing around.

Note: An ear­li­er ver­sion of this post appeared on our site in 2017.

Relat­ed Con­tent:

How Infor­ma­tion Over­load Robs Us of Our Cre­ativ­i­ty: What the Sci­en­tif­ic Research Shows

The Case for Delet­ing Your Social Media Accounts & Doing Valu­able “Deep Work” Instead, Accord­ing to Prof. Cal New­port

Lyn­da Barry’s Illus­trat­ed Syl­labus & Home­work Assign­ments from Her New UW-Madi­son Course, “Mak­ing Comics”

Lyn­da Bar­ry, Car­toon­ist Turned Pro­fes­sor, Gives Her Old Fash­ioned Take on the Future of Edu­ca­tion

Ayun Hal­l­i­day is an author, illus­tra­tor, and the­ater mak­er in NYC.

by | Permalink | Make a Comment ( 1 ) |

The Fascinating Engineering of the Titanic: How the Great Ocean Liner Was Built

When many of us first learned of the RMS Titan­ic, it was pre­sent­ed first as one of his­to­ry’s great­est ironies: the “unsink­able” ocean lin­er that went down on its maid­en voy­age. Of course, there’s a great deal more to the sto­ry, as any­one who becomes obsessed with the ill-fat­ed ship (James Cameron being just one notable exam­ple) under­stands full well. Even apart from the many human expe­ri­ences sur­round­ing it, some of them told by the wreck­’s sur­vivors and pre­served on film, the mechan­i­cal aspects of the Titan­ic hold out con­sid­er­able fas­ci­na­tion for any­one with an engi­neer’s cast of mind. Put aside, for the moment, the mat­ter of the sink­ing, and con­sid­er just what went into mak­ing it one of the most glo­ri­ous cre­ations of man launched into the ocean to date — or rather, one of the three most glo­ri­ous.

The Titan­ic was one of a trio of sim­i­lar White Star Line ships com­plet­ed in the ear­ly nine­teen-tens. In the video above, Bill Ham­mack, known on YouTube as Engi­neer­guy, tells the sto­ry of not just the Titan­ic, but also the Olympic and the HMHS Bri­tan­nic. An engi­neer­ing pro­fes­sor at the Uni­ver­si­ty of Illi­nois, he found in the cam­pus library issues of the jour­nal The Engi­neer pub­lished between 1909 and 1911 that con­tain detailed pho­tographs of the con­struc­tion of both the Titan­ic and Olympic, sis­ter ships that were built side-by-side.

One ele­ment high­light­ed that we may not much con­sid­er today is the sheer scale of the things: each was held togeth­er by three mil­lion riv­ets, could con­tain 1.5 mil­lion gal­lons of bal­last water, weighed 52,000 tons when ful­ly fit­ted, required 23 tons of lubri­cant to slide from the dock into the water, and burned 650 tons of coal per day on a transat­lantic cross­ing.

Alas, size alone was­n’t enough to pre­vent dis­as­ter. “Less than a year after the launch of these two giant ships, one suf­fered a col­li­sion that ripped a gap­ing hole in its side,” says Ham­mack. “That ship was of course, the Olympic.” Its sud­den encounter with a pass­ing war­ship neces­si­tat­ed patch­ing with wood before it could return home for a full repair, but there­after it remained in ser­vice for near­ly a quar­ter-cen­tu­ry. Its less lucky sib­ling end­ed up at the bot­tom of the ocean after run­ning into trou­ble of its own: a mine and a tor­pe­do spelled the end for the Bri­tan­nic in 1916. As for the Titan­ic, we all know about its fate­ful encounter with the ice­berg, and maybe we’ve even heard dis­cus­sions of how its design­ers could have mit­i­gat­ed the impact: more or taller bulk­heads, a dou­ble hull rather than just a dou­ble bot­tom, greater lifeboat capac­i­ty. As for whether and how those solu­tions would have worked, per­haps Ham­mack could still shoot a fol­low-up explain­ing it all to us.

Relat­ed Con­tent:

The First Full 3D Scan of the Titan­ic, Made of More Than 700,000 Images Cap­tur­ing the Wreck’s Every Detail

See the First 8K Footage of the Titan­ic, the High­est-Qual­i­ty Video of the Ship­wreck Yet

The Titan­ic: Rare Footage of the Ship Before Dis­as­ter Strikes (1911–1912)

Titan­ic Sur­vivor Inter­views: What It Was Like to Flee the Sink­ing Lux­u­ry Lin­er

The Sink­ing of the Bri­tan­nic: An Ani­mat­ed Intro­duc­tion to the Titan­ic’s For­got­ten Sis­ter Ship

How a 16th-Cen­tu­ry Explorer’s Sail­ing Ship Worked: An Ani­mat­ed Video Takes You on a Com­pre­hen­sive Tour

Based in Seoul, Col­in Marshall writes and broad­casts on cities, lan­guage, and cul­ture. He’s the author of the newslet­ter Books on Cities as well as the books 한국 요약 금지 (No Sum­ma­riz­ing Korea) and Kore­an Newtro. Fol­low him on the social net­work for­mer­ly known as Twit­ter at @colinmarshall.

The Met Releases High-Definition 3D Scans of 140 Famous Art Objects: Sarcophagi, Van Gogh Paintings, Marble Sculptures & More

We can go through most of our lives hold­ing out hope of one day see­ing in real­i­ty such works as van Gogh’s Sun­flow­ersMon­et’s Haystacks, a clay tablet con­tain­ing actu­al cuneiform writ­ing with our own eyes, or the ancient Egypt­ian Tem­ple of Den­dur. We can actu­al­ly come face to face — or rather, face to sur­face — with all of them, tem­ple includ­ed, at New York’s Met­ro­pol­i­tan Muse­um of Art, which con­tains all those and more arti­facts of human civ­i­liza­tion than any of us could hope to exam­ine close­ly in a life­time. But even if we did, we might only feel tempt­ed to look at them more close­ly still, even to touch them. That may be an improb­a­ble hope, but we can at least get clos­er than ever now thanks to the Met’s new archive of high-def­i­n­i­tion 3D scans.

“View­ers can zoom in, rotate, and exam­ine each mod­el, bring­ing unprece­dent­ed access to sig­nif­i­cant works of art,” says the Met’s offi­cial announce­ment. “The 3D mod­els can also be explored in view­ers’ own spaces through aug­ment­ed real­i­ty (AR) on most smart­phone and VR head­sets, as a resource for research, explo­ration, and curios­i­ty.”

High­lights include “a mar­ble sar­coph­a­gus with lions felling ante­lope (3rd cen­tu­ry); a stat­ue of Horus as a fal­con pro­tect­ing King Nectanebo II (360–343 BCE); Kano Sansetsu’s Old Plum (1646); and a house mod­el by Nayarit artist(s) (200 BCE–300 CE).” Or per­haps you’d pre­fer an inti­mate view of an eigh­teenth-cen­tu­ry tile depic­tion of Mec­ca, a nine­teenth-cen­tu­ry mar­ble sculp­ture of Perseus with the head of Medusa, or a suit of armor belong­ing to King Hen­ry II of France?

Brows­ing this archive of more than 100 dig­i­tized his­tor­i­cal objects, you’ll also notice pieces from Japan like sev­en­teenth-cen­tu­ry screens by the artists Kano Sanset­su and Suzu­ki Kiit­su. These must have been pri­or­i­ties for the Met’s insti­tu­tion­al part­ner in this project, the Japan­ese tele­vi­sion net­work NHK. It all came about “as part of the pub­lic broadcaster’s ini­tia­tive to pro­duce ultra-high def­i­n­i­tion 3D com­put­er graph­ics of nation­al trea­sures and oth­er impor­tant art­works,” with “fur­ther edu­ca­tion­al pro­gram­ming and poten­tial con­tent using these cut­ting-edge, best-in-class mod­els” in the off­ing. For now, though, the archive offers us more than enough to behold from any pos­si­ble angle. To do so, just click the “View in 3D” but­ton below the image on the page of your arti­fact or art­work of choice. It may not be the same as hold­ing the object in your hands, but it’s as close as you’re going to get — unless, of course, you find your­self inspired to pur­sue the dream of becom­ing a cura­tor at the Met.

via Colos­sal

Relat­ed con­tent:

Take a New Vir­tu­al Real­i­ty Tour of the Met­ro­pol­i­tan Muse­um of Art

See Vermeer’s Girl with a Pearl Ear­ring in 3D in a New 108-Gigapix­el Scan

3D Scans of 7,500 Famous Sculp­tures, Stat­ues & Art­works: Down­load & 3D Print Rodin’s Thinker, Michelangelo’s David & More

Explore Metic­u­lous 3D Mod­els of Endan­gered His­tor­i­cal Sites in Google’s “Open Her­itage” Project

Open­Ver­te­brate Presents a Mas­sive Data­base of 13,000 3D Scans of Ver­te­brate Spec­i­mens

The Earth Archive Will 3D-Scan the Entire World & Cre­ate an “Open-Source” Record of Our Plan­et

Based in Seoul, Col­in Marshall writes and broad­casts on cities, lan­guage, and cul­ture. He’s the author of the newslet­ter Books on Cities as well as the books 한국 요약 금지 (No Sum­ma­riz­ing Korea) and Kore­an Newtro. Fol­low him on the social net­work for­mer­ly known as Twit­ter at @colinmarshall.

The Ingenious Engineering of Silk: How the 2,000-Year-Old Pattern Loom Powered the Silk Road and the Wealth of Ancient China

The Silk Road’s long peri­od of high activ­i­ty spanned the sec­ond cen­tu­ry BC and the fif­teenth cen­tu­ry AD, but its name was­n’t coined until more than 400 years after that. Schol­ars have argued it prac­ti­cal­ly ever since, giv­en that the ref­er­ent was­n’t just one road but a vast and ever-chang­ing net­work of them, and that silk was hard­ly the only com­mod­i­ty car­ried by its traders. Yet the name per­sists, and not only due to Mar­co Polo-type roman­ti­cism. Silk may not have been the high­est-vol­ume item on its epony­mous road — more busi­ness was sure­ly done in every­day tex­tiles, to say noth­ing of spices, grains, or dyes — but it was per­haps the most vis­i­ble, and sure­ly the most glam­orous. From the per­spec­tive of Chi­nese civ­i­liza­tion, it can also look like the most impor­tant.

In the new Pri­mal Space video above, you can hear the sto­ry of “the machine that made Chi­na rich”: the pat­tern loom, that is, a mod­el of which was unearthed in 2017 dur­ing sub­way con­struc­tion in the city of Cheng­du. At some­where between 2,100 and 2,200 years old, they rep­re­sent the ear­li­est known evi­dence of pat­tern loom tech­nol­o­gy, of which Chi­na made high­ly pro­duc­tive use dur­ing the time of its three-mil­len­ni­um monop­oly on silk.

As far away as the Roman Empire, those who had the means could­n’t get enough of the stuff, espe­cial­ly when it came in designs nev­er before seen in human his­to­ry. Hence the high pri­or­i­ty Chi­na placed on keep­ing knowl­edge of its har­vest­ing and weav­ing pro­pri­etary — at least until a cou­ple of Roman monks man­aged to smug­gle silk­worm lar­vae back to Europe in the mid­dle of the sixth cen­tu­ry.

Yet even hav­ing lost its sta­tus as the only land capa­ble of pro­duc­ing silk, Chi­na retained a great advan­tage in the form of its sheer man­u­fac­tur­ing capac­i­ty. (This sto­ry rings some­what famil­iar about a mil­len­ni­um and a half lat­er, when none of us can dis­pute which coun­try holds the title of “the world’s fac­to­ry.”) Its silk indus­try could achieve that scale thanks to the rel­a­tive ease of use of the pat­tern loom, which required no spe­cial skills to oper­ate. The most com­plex aspect would have been “pro­gram­ming” the pat­terns to be formed by the strands, which, though an entire­ly ana­log process, has its basic sim­i­lar­i­ties with the dig­i­tal com­put­er pro­gram­ming we know today. Chi­na’s trade net­works have great­ly mul­ti­plied since the days of Mar­co Polo, and the tech­nol­o­gy it uses has devel­oped to a pre­vi­ous­ly unimag­in­able degree. Yet some­how, the “Elec­tric Vehi­cle Road” does­n’t have quite the same ring, does it?

Relat­ed Con­tent:

Dis­cov­er the World’s First Earth­quake Detec­tor, Invent­ed in Chi­na 2,000 Years Ago

How the Ornate Tapes­tries from the Age of Louis XIV Were Made (and Are Still Made Today)

China’s 8,000 Ter­ra­cot­ta War­riors: An Ani­mat­ed & Inter­ac­tive Intro­duc­tion to a Great Archae­o­log­i­cal Dis­cov­ery

Watch a Trans­fix­ing Demon­stra­tion of Kumi­hi­mo, the Ancient Japan­ese Art­form of Mak­ing Braids & Cords

The Improb­a­ble Inven­tion of Chi­nese Type­writ­ers & Com­put­er Key­boards: Three Videos Tell the Tech­no-Cul­tur­al Sto­ry

Based in Seoul, Col­in Marshall writes and broad­casts on cities, lan­guage, and cul­ture. He’s the author of the newslet­ter Books on Cities as well as the books 한국 요약 금지 (No Sum­ma­riz­ing Korea) and Kore­an Newtro. Fol­low him on the social net­work for­mer­ly known as Twit­ter at @colinmarshall.

An Animated Introduction to the Antikythera Mechanism: The World’s First Analog Computer from Ancient Greece

From TED-Ed comes an ani­mat­ed intro­duc­tion to the Antikythera Mech­a­nism, an ancient Greek device that dates back to the 2nd cen­tu­ry BCE. TED writes: “In 1900, Greek divers stum­bled upon a 2,000-year-old ship­wreck whose con­tents would shake our under­stand­ing of the ancient world. Among the remains were frag­ments of man­gled wood and cor­rod­ed met­al, which archae­ol­o­gists soon real­ized were parts of the old­est geared device ever dis­cov­ered — and humankind’s first com­put­er. So, how did it work?” Above, sci­ence jour­nal­ist Max G. Levy explains the inner work­ings of the Antikythera Mech­a­nism and how the Greeks put the device to use.

For those who want to take a deep­er dive into this ancient ana­log com­put­er (there’s a lot more to learn), we invite you to explore the titles in the Relat­eds sec­tion below. They’ll take you deep­er into this mar­vel of ancient engi­neer­ing.

If you would like to sup­port the mis­sion of Open Cul­ture, con­sid­er mak­ing a dona­tion to our site. It’s hard to rely 100% on ads, and your con­tri­bu­tions will help us con­tin­ue pro­vid­ing the best free cul­tur­al and edu­ca­tion­al mate­ri­als to learn­ers every­where. You can con­tribute through Pay­Pal, Patre­on, and Ven­mo (@openculture). Thanks!

Relat­ed Con­tent 

How the World’s Old­est Com­put­er Worked: Recon­struct­ing the 2,200-Year-Old Antikythera Mech­a­nism

Researchers Devel­op a Dig­i­tal Mod­el of the 2,200-Year-Old Antikythera Mech­a­nism, “the World’s First Com­put­er”

A Ful­ly Func­tion­al Repli­ca of the Antikythera Mech­a­nism, the First Ana­log Com­put­er from Ancient Greece, Re-Cre­at­ed in LEGO

How the Ancient Greeks Invent­ed the First Com­put­er: An Intro­duc­tion to the Antikythera Mech­a­nism (Cir­ca 87 BC)

by | Permalink | Make a Comment ( 2 ) |

How the Incas Performed Skull Surgery More Successfully Than U.S. Civil War Doctors

Grant­ed access to a time machine, few of us would pre­sum­ably opt first for the expe­ri­ence of skull surgery by the Incas. Yet our chances of sur­vival would be bet­ter than if we under­went the same pro­ce­dure 400 years lat­er, at least if it took place on a Civ­il War bat­tle­field. In both fif­teenth-cen­tu­ry Peru and the nine­teenth-cen­tu­ry Unit­ed States, sur­geons were per­form­ing a lot of trepa­na­tion, or removal of a por­tion of the skull. Since the Neolith­ic peri­od, indi­vid­u­als had been trepanned for a vari­ety of rea­sons, some of which now sound more med­ical­ly com­pelling than oth­ers, but the Incan civ­i­liza­tion took it to anoth­er lev­el of fre­quen­cy, and indeed sophis­ti­ca­tion.

Any­one with an inter­est in the his­to­ry of tech­nol­o­gy would do well to study the Incas, who were remark­able in both what they devel­oped and what they did­n’t. Though there was no Incan alpha­bet, there was khipu, (or quipu), pre­vi­ous­ly fea­tured here on Open Cul­ture, a sys­tem of record-keep­ing that used noth­ing but knot­ted cords.

The Incas may not have had wheeled vehi­cles or mechan­i­cal devices as we know them today, but they did have pre­ci­sion mason­ry, an exten­sive road sys­tem, advanced water man­age­ment for agri­cul­tur­al and oth­er uses, high-qual­i­ty tex­tiles, and plant-derived anti­sep­tic — some­thing more than a lit­tle use­ful if you also hap­pen to be cut­ting a lot of holes in peo­ple’s skulls.

Study­ing the his­to­ry of trepa­na­tion, neu­rol­o­gist David Kush­n­er, along with bioar­chae­ol­o­gists John Ver­a­no and Anne Titel­baum, exam­ined more than 600 Peru­vian skulls dat­ing from between 400 BC and the mid-six­teenth-cen­tu­ry, which marked the end of the Incans’ 133-year-long run. As Sci­ence’s Lizzie Wade reports, the old­est evi­dence shows an unen­vi­able 40% sur­vival rate, but the sur­gi­cal tech­nique evolved over time: by the Inca era, the num­ber ris­es to between 75% and 83%, as against 46% to 56% in Civ­il War mil­i­tary hos­pi­tals. Some Incan skulls even show signs of hav­ing under­gone up to sev­en suc­cess­ful trepa­na­tions — or non-fatal ones, at any rate. Though that ven­er­a­ble form of surgery may no longer be prac­ticed, mod­ern neu­ro­sur­geons today use tech­niques based on the same prin­ci­ples. Should we find our­selves in need of their ser­vices, we’ll no doubt pre­fer to keep our dis­tance from the time machine.

Relat­ed con­tent:

Dis­cov­er Khipu, the Ancient Incan Record & Writ­ing Sys­tem Made Entire­ly of Knots

Behold the Medieval Wound Man: The Poor Soul Who Illus­trat­ed the Injuries a Per­son Might Receive Through War, Acci­dent or Dis­ease

Jazz Musi­cian Plays Acoustic Gui­tar While Under­go­ing Brain Surgery, Help­ing Doc­tors Mon­i­tor Their Progress

Arti­fi­cial Intel­li­gence & Drones Uncov­er 303 New Naz­ca Lines in Peru

How the “First Pho­to­jour­nal­ist,” Math­ew Brady, Shocked the Nation with Pho­tos from the Civ­il War

Down­load 100,000+ Images From The His­to­ry of Med­i­cine, All Free Cour­tesy of The Well­come Library

Based in Seoul, Col­in Marshall writes and broad­casts on cities, lan­guage, and cul­ture. He’s the author of the newslet­ter Books on Cities as well as the books 한국 요약 금지 (No Sum­ma­riz­ing Korea) and Kore­an Newtro. Fol­low him on the social net­work for­mer­ly known as Twit­ter at @colinmarshall.

RIP Gladys Mae West, the Pioneering Black Mathematician Who Helped Lay the Foundation for GPS

Gladys Mae West was born in rur­al Vir­ginia in 1930, grew up work­ing on a tobac­co farm, and died ear­li­er this month a cel­e­brat­ed math­e­mati­cian whose work made pos­si­ble the GPS tech­nol­o­gy most of us use each and every day. Hers was a dis­tinc­tive­ly Amer­i­can life, in more ways than one. Seek­ing an escape from the agri­cul­tur­al labor she’d already got­ten to know all too well, she won a schol­ar­ship to Vir­ginia State Col­lege by becom­ing her high school class vale­dic­to­ri­an; after earn­ing her bach­e­lor’s and mas­ter’s degrees in math­e­mat­ics, she taught for a time and then applied for a job at the naval base up in Dahlgren. She first dis­tin­guished her­self there by ver­i­fy­ing the accu­ra­cy of bomb­ing tables with a hand cal­cu­la­tor, and from there moved on up to the com­put­er pro­gram­ming team.

This was the ear­ly nine­teen-six­ties, when pro­gram­ming a com­put­er meant not cod­ing, but labo­ri­ous­ly feed­ing punch cards into an enor­mous main­frame. West and her col­leagues used IBM’s first tran­sis­tor­ized machine, the 7030 (or “Stretch”), which was for a few years the fastest com­put­er in the world.

It cost an equiv­a­lent of $81,860,000 in today’s dol­lars, but no oth­er com­put­er had the pow­er to han­dle the project of cal­cu­lat­ing the pre­cise shape of Earth as affect­ed by grav­i­ty and the nature of the oceans. About a decade lat­er, anoth­er team of gov­ern­ment sci­en­tists made use of those very same cal­cu­la­tions when putting togeth­er the mod­el employed by the World Geo­det­ic Sys­tem, which GPS satel­lites still use today. Hence the ten­den­cy of cel­e­bra­to­ry obit­u­ar­ies to under­score the point that with­out West­’s work, GPS would­n’t be pos­si­ble.

Nor do any of them neglect to point out the fact that West was black, one of just four such math­e­mati­cians work­ing for the Navy at Dahlgren. Sto­ries like hers have drawn much greater pub­lic inter­est since the suc­cess of Hid­den Fig­ures, the Hol­ly­wood adap­ta­tion of Mar­got Lee Shet­ter­ly’s book about the black female math­e­mati­cians at NASA dur­ing the Space Race. When that movie came out, in 2016, even West­’s own chil­dren did­n’t know the impor­tance of the once-clas­si­fied work she’d done. Only in 2018, when she pro­vid­ed that infor­ma­tion on a bio­graph­i­cal form she filled out for an event host­ed by her col­lege soror­i­ty, did it become pub­lic. She thus spent the last years of her long life as a celebri­ty, sought out by aca­d­e­mics and jour­nal­ists eager to under­stand the con­tri­bu­tions of anoth­er no-longer-hid­den fig­ure. But to their ques­tions about her own GPS use, she report­ed­ly answered that she pre­ferred a good old-fash­ioned paper map.

Relat­ed con­tent:

Mar­garet Hamil­ton, Lead Soft­ware Engi­neer of the Apol­lo Project, Stands Next to Her Code That Took Us to the Moon (1969)

Women’s Hid­den Con­tri­bu­tions to Mod­ern Genet­ics Get Revealed by New Study: No Longer Will They Be Buried in the Foot­notes

Meet Grace Hop­per, the Pio­neer­ing Com­put­er Sci­en­tist Who Helped Invent COBOL and Build the His­toric Mark I Com­put­er (1906–1992)

Joce­lyn Bell Bur­nell Dis­cov­ered Radio Pul­sars in 1974, But the Cred­it Went to Her Advi­sor; In 2018, She Gets Her Due, Win­ning a $3 Mil­lion Physics Prize

Hen­ri­et­ta Lacks Gets Immor­tal­ized in a Por­trait: It’s Now on Dis­play at the Nation­al Por­trait Gallery

Black His­to­ry in Two Min­utes: Watch 93 Videos Writ­ten & Nar­rat­ed by Hen­ry Louis Gates Jr.

Based in Seoul, Col­in Marshall writes and broad­casts on cities, lan­guage, and cul­ture. He’s the author of the newslet­ter Books on Cities as well as the books 한국 요약 금지 (No Sum­ma­riz­ing Korea) and Kore­an Newtro. Fol­low him on the social net­work for­mer­ly known as Twit­ter at @colinmarshall.

« Go BackMore in this category... »
Quantcast