The Mathematics of Spiderman and the Physics of Superheroes

I have not seen the new Spi­der­man reboot, so I’ll have to reserve judg­ment on the virtues of the movie. But, in gen­er­al, super­hero movies suc­ceed or fail for me based on how plau­si­ble and con­sis­tent the physics of the alter­nate uni­verse they cre­ate are. In the above video from the “Emory [Uni­ver­si­ty] Looks at Hol­ly­wood” series, Skip Garibal­di, pro­fes­sor of math­e­mat­ics (who pre­vi­ous­ly exam­ined the math of rock climb­ing) explains that the new Spi­der­man film does, with a minor excep­tion, por­tray the feats of Spi­der­man in a math­e­mat­i­cal­ly pos­si­ble way—granted that we’re will­ing to believe in super­pow­ers. For exam­ple, Spi­der­man’s grace­ful swings through the city on long strands of web­bing don’t just serve a cin­e­mat­ic pur­pose; they also keep him from pos­si­bly dis­lo­cat­ing his shoul­ders while com­ing to a full-stop from a free-fall.

Ana­lyz­ing the sci­ence of super­heroes is a fun side­line for pop cul­ture-mind­ed sci­en­tists. In some cas­es, it can be an effec­tive teach­ing tool as well. Uni­ver­si­ty of Min­neso­ta physi­cist and com­ic book fan James Kakalios devotes an entire lec­ture to “The Uncan­ny Physics of Super­hero Com­ic Books.” Kakalios, who has writ­ten a book called the Physics of Super­heroesworked as a sci­ence con­sul­tant on the Spi­der­man reboot and on Zack Snyder’s adap­ta­tion of Watch­men, which he dis­cuss­es below.

Many great physics cours­es (some intro­duc­to­ry, some advanced) can be found in the Physics sec­tion of our col­lec­tion of 500 Free Online Cours­es.

Hours of Classic Crime and Mystery Movies. Discover Our Film Noir and Alfred Hitchcock Collections

Above you’ll find Alfred Hitch­cock­’s Num­ber Sev­en­teen, free to watch in its entire­ty. Released in 1932, the film finds a gang of jew­el thieves des­per­ate to hide their lat­est boun­ty, a dia­mond neck­lace. Just when they think they’ve found the per­fect house in which to stash it — the Num­ber Sev­en­teen of the title — their plans begin to unrav­el when var­i­ous out­siders (includ­ing but not lim­it­ed to a sneaky police detec­tive) turn up there. Hitch­cock deliv­ers this sto­ry with an odd mix of sus­pense and com­e­dy, and, per­haps as a result, it has­n’t been one of his most wide­ly seen pic­tures. But you can watch it with a click of a mouse, just as you can any of the films in our col­lec­tion of 21 Free Hitch­cock Movies Online. There you can expe­ri­ence many evenings of enter­tain­ment from the Eng­lish-turned-Amer­i­can mas­ter of twen­ti­eth-cen­tu­ry cin­e­mat­ic sus­pense. From his Daphne du Mau­ri­er adap­ta­tion Jamaica Inn to his ear­ly hit The 39 Steps to his British ver­sion of The Man Who Knew Too Much, Hitch­cock deliv­ers ship­wrecks, con­spir­a­cies, para­noia, and uneasy roman­tic intrigue — all at no charge.

And if you watch all 21 free Hitch­cock pic­tures, don’t wor­ry; we’ve got more crime and mys­tery in store for you. Look no fur­ther than our col­lec­tion of Free Film Noir Movies. Just above, we’ve embed­ded He Walked by Night, a grit­ty tale of post­war Los Ange­les star­ring Drag­net’s Jack Webb. The film would go on to pro­vide the basis for Drag­net itself. Or per­haps you’d pre­fer to watch The Lady from Shang­hai, star­ring and direct­ed by Orson Welles, which mix­es film noir tra­di­tions with Welles’ own idio­syn­crat­ic, some­times per­fec­tion­ist and some­times down­right anti-per­fec­tion ten­den­cies; “the weird­est great movie ever made,” crit­ic Dave Kehr called it. If you’re look­ing for more noir Welles, our col­lec­tion also con­tains The Stranger, his pre­vi­ous film. Star­ring Edward G. Robin­son as a Nazi hunter, it came out as the first film after the Sec­ond World War to actu­al­ly include footage of con­cen­tra­tion camps. Both our noir and Hitch­cock col­lec­tions con­tain a great deal of his­to­ry as well as a great deal of craft. They may not make movies like these any­more, but now it’s eas­i­er than ever to watch the ones they made back then.

Relat­ed con­tent:

500 Free Movies Online

Alfred Hitch­cock: A Rare Look Into the Filmmaker’s Cre­ative Mind

François Truffaut’s Big Inter­view with Alfred Hitch­cock (Free Audio)

Orson Welles Explains Why Igno­rance Was the Genius Behind Cit­i­zen Kane

100 Great­est Posters of Film Noir

Col­in Mar­shall hosts and pro­duces Note­book on Cities and Cul­ture. Fol­low him on Twit­ter at @colinmarshall.

Bob Dylan’s (In)Famous Electric Guitar From the Newport Folk Festival Discovered?

On July 25, 1965, Bob Dylan returned to the New­port Folk Fes­ti­val, now the head­line act. The purist audi­ence expect­ed to hear some Dylan clas­sics played with an acoustic gui­tar — some­thing like “Blowin’ In The Wind” and “Mr. Tam­bourine Man.” They got any­thing but. Dylan trad­ed in his Gib­son acoustic gui­tar for a Fend­er Stra­to­cast­er, and began to bang out elec­tri­fied ver­sions of “Mag­gie’s Farm” and “Like a Rolling Stone” (see above). Pete Seeger, the folk icon, lost his cool and famous­ly threat­ened, “If I had an axe, I’d chop the micro­phone cable right now.” The crowd booed (for rea­sons that some now inter­pret dif­fer­ent­ly). Dylan abrupt­ly left the stage, only to return with an acoustic gui­tar in hand. Lat­er, dur­ing his 1965–66 world tour, embit­tered fans called him “Judas!”

Every­thing changed the moment Dylan went elec­tric at New­port. Dylan’s own music, folk music, rock ’n’ roll — they all moved in new direc­tions. And the gui­tar at the cen­ter of the con­tro­ver­sy, it went silent for almost five decades … until now. This week, the PBS pro­gram His­to­ry Detec­tives aired an episode that tried to deter­mine whether Dylan’s elec­tric axe may have wound up in the hands of Dawn Peter­son, the daugh­ter of a pilot who flew planes board­ed by Dylan and oth­er folk musi­cians. The foren­sic evi­dence sug­gests that it’s the real deal. But Dylan, through his lawyers, insists that he’s still in pos­ses­sion of the his­to­ry-mak­ing gui­tar. It’s anoth­er lay­er of con­tro­ver­sy that began 47 years ago.

Relat­ed Con­tent:

A His­to­ry of Rock ‘n’ Roll in 100 Riffs

Mak­ing Fend­er Gui­tars, Then (1959) and Now (2012)

Jim­my Page Tells the Sto­ry of “Kash­mir”

Here Comes The Sun: The Lost Gui­tar Solo by George Har­ri­son

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Shakespeare’s Satirical Sonnet 130, As Read By Stephen Fry

“My mis­tress’ eyes are noth­ing like the sun,” begins Son­net 130 by William Shake­speare. But why read the rest when you can see and hear it, in the video above, from Stephen Fry? No mat­ter how often I’ve wished the voice inside my head could sound like his, I just can’t mas­ter intracra­nial­ly repli­cat­ing his dis­tinc­tive com­bi­na­tion of accent and man­ner. This defi­cien­cy both­ers me espe­cial­ly when read­ing works as wor­thy as Shake­speare’s son­nets. Son­net 130 in par­tic­u­lar, a satire of the increas­ing­ly and obvi­ous­ly hyper­bol­ic odes to female beau­ty pop­u­lar in Shake­speare’s day, prac­ti­cal­ly demands a per­sona as dry­ly know­ing as Fry’s. But nei­ther Fry in any of his work nor the Shake­speare of Son­net 130 seem con­tent to sim­ply pop bal­loons of grotesque­ly over­in­flat­ed sen­ti­ment. They know that, in refus­ing to trot out grand­ly tired com­par­isons of lips to coral and cheeks to ros­es, they pay their sub­jects a more last­ing, gen­uine trib­ute in the end.

Fry’s read­ing comes from a new iPad app, Shake­speare’s Son­nets. In an appar­ent real­iza­tion of all those lit­er­ary “mul­ti­me­dia expe­ri­ences” we dreamed of but could nev­er quite achieve in the mid-nineties, it presents the 154 son­nets as they looked in their 1609 quar­to edi­tion with schol­ar­ly notes, com­men­tary, and inter­views with experts. Oth­er per­form­ers enlist­ed to read them include Patrick Stew­art (pre­sum­ably anoth­er sine qua non for such a project), David Ten­nant, and — because hey, why not — Kim Cat­trall. A fine idea, but new-media vision­ar­ies should take note that I and many oth­ers are even now wait­ing for apps ded­i­cat­ed to noth­ing more than Stephen Fry read­ing things. Some­one’s got to cap­i­tal­ize on this demand.

Relat­ed con­tent:

Shake­speare in the Orig­i­nal Voice

Shakespeare’s Julius Cae­sar Read in Celebri­ty Voic­es

Acclaimed BBC Pro­duc­tion of Ham­let, Star­ring David Ten­nant (Doc­tor Who) and Patrick Stew­art (Star Trek)

City Poems: A New Lit­er­ary iPhone App

Col­in Mar­shall hosts and pro­duces Note­book on Cities and Cul­ture. Fol­low him on Twit­ter at @colinmarshall.

The Life and Times of Nelson Mandela Retold with Facebook, Twitter and Instagram

Back in March, we told you about the launch of The Nel­son Man­dela Dig­i­tal Archive, which makes avail­able thou­sands of papers belong­ing to the man who gal­va­nized the anti-apartheid move­ment in South Africa, before even­tu­al­ly becom­ing the leader of the nation. Part­ly fund­ed by Google, the archive lets you revis­it impor­tant moments in Man­de­la’s life — his Ear­ly Life, his Prison Years, and his Pres­i­den­tial Years.

That Dig­i­tal Archive offers one way to tell Man­de­la’s sto­ry. Now here’s anoth­er. The cre­ators of the web site Man­dela Sto­ry launched a short video yes­ter­day that looks at Man­de­la’s life through the lens of social media. And it’s meant to raise a seri­ous ques­tion: “Would Man­dela have spent 27 years in cap­tiv­i­ty if he (and oth­ers) had access to the same tech­nol­o­gy, social media plat­forms and tools as we do today?”

It’s short and cer­tain­ly cre­ative. And if it speaks to you, you should check out Rembrandt’s Face­book Time­line, a clip cre­at­ed by The Rijksmu­se­um that imag­ines the social life of the great Dutch painter.

Fol­low us on Face­bookTwit­ter and now Google Plus and share intel­li­gent media with your friends! They’ll thank you for it.

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Astonishing Film of Arthritic Impressionist Painter, Pierre-Auguste Renoir (1915)

You may nev­er look at a paint­ing by Pierre-August Renoir in quite the same way again after see­ing this three-minute film. It did­n’t show in his art­work, but Renoir suf­fered from severe rheuma­toid arthri­tis dur­ing the last three decades of his life. He worked in con­stant pain, right up until the day he died.

In this rare footage from 1915 we see the 74-year-old mas­ter seat­ed at his easel, apply­ing paint to a can­vas while his youngest son Claude, 14, stands by to arrange the palette and place the brush in his father’s per­ma­nent­ly clenched hand. By the time the film was made Renoir could no longer walk, even with crutch­es. He depend­ed on oth­ers to move him around in a wheel­chair. His assis­tants would scroll large can­vas­es across a cus­tom-made easel, so that the seat­ed painter could reach dif­fer­ent areas with his lim­it­ed arm move­ments.

But there were times when the pain was so bad he was essen­tial­ly par­a­lyzed. In the book Renoir, My Father, the painter’s famous film­mak­er son Jean describes the shock his father’s wast­ed fig­ure and gnarled hands gave to peo­ple who knew him only from his beau­ti­ful art:

His hands were ter­ri­bly deformed. His rheuma­tism had made the joints stiff and caused the thumbs to turn inward towards the palms, and his fin­gers to bend towards the wrists. Vis­i­tors who were unpre­pared for this could not take their eyes off his defor­mi­ty. Though they did not dare to men­tion it, their reac­tion would be expressed by some such phrase as “It isn’t pos­si­ble! With hands like that, how can he paint those pic­tures? There’s some mys­tery some­where.”

The film of Renoir was made by 30-year-old Sacha Gui­t­ry, who appears mid­way through the film sit­ting down and talk­ing with the artist. Gui­t­ry was the son of the famous actor and the­atre direc­tor Lucien Gui­t­ry, and would go on to even greater fame than his father as an actor, film­mak­er and play­wright. When a group of Ger­man intel­lec­tu­als issued a man­i­festo after the out­break of World War I brag­ging about the supe­ri­or­i­ty of Ger­man cul­ture, Gui­t­ry was infu­ri­at­ed. As an act of patri­o­tism he decid­ed to make a film of France’s great men and women of the arts. It would be released as Ceux de Chez Nous, or “Those of Our Land.” Gui­t­ry and Renoir were already friends, so when the young man embarked on his project he trav­elled to Renoir’s home at Cagnes-sur-Mer, in the Provence-Alpes-Côte d’Azur region. The date was short­ly after June 15, 1915, when Renoir’s wife Aline died. In Sacha Gui­t­ry: The Last Boule­vardier, writer James Hard­ing describes the scene:

The choice of time was unfor­tu­nate. That very day Renoir’s wife was to be buried. Sacha went to the old man who sat hud­dled arthrit­i­cal­ly in his wheel chair and mur­mured: ‘It must be ter­ri­bly painful, Mon­sieur Renoir, and you have my deep­est sym­pa­thy.’ ‘Painful?’ he replied, shift­ing his racked limbs, ‘you bet my foot is painful!’ They pushed him in his chair up to a can­vas, and, while Sacha leaned watch­ing over his shoul­der, Renoir jabbed at the pic­ture with brush­es attached to hands which had cap­tured so much beau­ty but which now were shriv­elled like birds’ claws. The flat­ter­ing reminder that he was being filmed for pos­ter­i­ty had no effect on the man who, on being award­ed the cra­vat of a Com­man­deur of the Légion d’Hon­neur, had said: ‘How can you expect me to wear a cra­vat when I nev­er wear a col­lar?’

Renoir died four years after the film was made, on Decem­ber 3, 1919. He lived long enough to see some of his paint­ings installed in the Lou­vre. When a young Hen­ri Matisse asked the suf­fer­ing old man why he kept paint­ing, Renoir is said to have replied, “The pain pass­es, but the beau­ty remains.”

Google Street View Opens Up a Look at Shackleton’s Antarctic

The dis­cov­ery of the South Pole is a sto­ry whose hero seems to change with every telling. Some­times it’s Robert Scott, some­times Nor­we­gian Roald Amund­sen, and, most recent­ly, Scott’s pro­tégé, Sir Ernest Shack­le­ton. All three—and geol­o­gist Sir Dou­glas Mawson—are essen­tial char­ac­ters in a series of ear­ly 20th cen­tu­ry expe­di­tions to a for­bid­ding ter­ri­to­ry near­ly inac­ces­si­ble to the aver­age human being. Now, Google has opened up the Antarc­tic for every­one to explore from the safe­ty of padded office chairs, com­fy couch­es, and cof­fee-shop seat­ing. Google Street View was launched in May 2007 and has since expand­ed its scope to give the aver­age user visu­al access to some fair­ly remote and exot­ic loca­tions. Google’s World Won­ders Project pro­vides aston­ish­ing views of an ancient Zen Tem­ple in Kyoto and the coasts of Dorset and East Devon in Eng­land, among many oth­er stun­ning sites. Most recent­ly, Google Street View has made avail­able 360-degree views of the wood­en huts used by Robert Scott and Ernest Shack­le­ton a cen­tu­ry ago dur­ing their Antarc­tic expe­di­tions. (Start your tour here.)

Both Scot­t’s and Shack­le­ton’s huts have been pre­served intact as his­tor­i­cal sites by New Zealand’s Antarc­tic Her­itage Trust. The explor­ers’ tools and sup­plies, in their orig­i­nal arrange­ment, are on full dis­play in detailed panoram­ic images of the huts’ interiors—a depar­ture from the typ­i­cal exte­ri­or per­spec­tives of Street View. Also view­able in the Antarc­tic series of views is the Cape Royds Adelie Pen­guin Rook­ery, the world’s south­ern­most pen­guin colony and home to many thou­sands of Adelie pen­guins. Like all Street View images, includ­ing the Scott and Shack­le­ton huts, the Rook­ery views are static—images of bygone moments frozen in time—but they are no less breath­tak­ing for it.

The image below shows the inte­ri­or of Shackleton’s hut and all of its belong­ings.

Relat­ed Con­tent:

Tour the Ama­zon with Google Street View; No Pass­port Need­ed

Google Art Project Expands, Bring­ing 30,000 Works of Art from 151 Muse­ums to the Web

Josh Jones is cur­rent­ly a doc­tor­al stu­dent in Eng­lish at Ford­ham Uni­ver­si­ty and a co-founder and for­mer man­ag­ing edi­tor of Guer­ni­ca / A Mag­a­zine of Arts and Pol­i­tics.

Einstein’s Big Idea: E=mc²

E=mc²: We’ve all heard of it. But what does it mean?

Ein­stein’s Big Idea, a film from the PBS Nova series, attempts to shed a lit­tle light on Albert Ein­stein’s equa­tion by break­ing it down into its com­po­nent parts and telling a sto­ry behind the devel­op­ment of each one. Nar­rat­ed by actor John Lith­gow, the film is based on David Bodanis’s 2000 best­seller E=mc²: A Biog­ra­phy of the World’s Most Famous Equa­tion. It pre­miered in 2005, the 100th anniver­sary of Ein­stein’s Annus Mirabilis–the “mirac­u­lous year” when the 26-year-old patent clerk pub­lished five papers with­in a six-month peri­od that would rev­o­lu­tion­ize 20th cen­tu­ry physics. Among those five were Ein­stein’s paper out­lin­ing what lat­er became known as the Spe­cial The­o­ry of Rel­a­tiv­i­ty, and a short fol­low-up paper deriv­ing his for­mu­la for the equiv­a­lence of mass and ener­gy, which he first stat­ed as m=E/c².

Does Ein­stein’s Big Idea actu­al­ly explain the equa­tion? Alas, no. Not even close. Appar­ent­ly, the film­mak­ers’ “big idea” was that they might be able to evoke empa­thy among young view­ers and stim­u­late inter­est in sci­ence by por­tray­ing Ein­stein as a rebel­lious young man with a healthy sex dri­ve. The movie fea­tures dra­mat­ic depic­tions of events, not only in Ein­stein’s ear­ly life, but in the lives of sev­er­al oth­er impor­tant fig­ures in the his­to­ry of sci­ence:  the 19th cen­tu­ry Eng­lish­man Michael Fara­day, whose exten­sive exper­i­ments and intu­itive the­o­ries in elec­tric­i­ty and mag­net­ism led direct­ly to James Clerk Maxwell’s for­mal dis­cov­ery that light was an elec­tro­mag­net­ic wave;  the 18th cen­tu­ry French chemist Antoine Lavoisi­er, whose dis­cov­ery of the con­ser­va­tion of mass had to be re-for­mu­lat­ed as the con­ser­va­tion of mass-ener­gy in the wake of Ein­stein’s Rel­a­tiv­i­ty The­o­ry; the 18th cen­tu­ry French trans­la­tor of Isaac New­ton, Emi­lie du Châtelet, who used the empir­i­cal find­ings of Willem Gravesande to change New­ton’s for­mu­la for ener­gy from E=mv to the one favored by Got­tfried Wil­helm Leib­niz, E=mv²; and the Aus­tri­an-born physi­cist Lise Meit­ner, whose ground­break­ing research into nuclear fis­sion in the 1930s helped con­firm the accu­ra­cy of Ein­stein’s equa­tion. Togeth­er, the scenes depict the his­to­ry of sci­ence as a roman­tic strug­gle of extra­or­di­nary indi­vid­u­als against the resis­tance of less­er minds.

To learn more about Rel­a­tiv­i­ty and E=mc², here are some free online resources:

“On the Elec­tro­dy­nam­ics of Mov­ing Bod­ies”, Ein­stein’s famous paper from the June 30, 1905 edi­tion of Annalen der Physik, out­lin­ing the Spe­cial The­o­ry of Rel­a­tiv­i­ty. Avail­able as HTML or PDF.

“Does the Iner­tia of a Body Depend on Its Ener­gy Con­tent?”, Ein­stein’s three-page fol­low-up to the paper above, deriv­ing his famous equa­tion from the prin­ci­ples laid out in the ear­li­er work. It was pub­lished in Annalen der Physik on Sep­tem­ber 27, 1905 and is avail­able online as a PDF.

Rel­a­tiv­i­ty: The Spe­cial and Gen­er­al The­o­ry, Ein­stein’s clas­sic guide for the lay read­er, writ­ten in 1916 and avail­able free in var­i­ous for­mats at Project Guten­berg.

The ABC of Rel­a­tiv­i­ty, Bertrand Rus­sel­l’s very acces­si­ble 1925 book, avail­able in an abridged audio edi­tion through links in our Feb. 18 post.

Cours­es on Ein­stein can be found in the Physics sec­tion of our col­lec­tion of 500 Free Online Cours­es. And don’t miss Ein­stein for the Mass­es, a lec­ture giv­en by Rama­mur­ti Shankar, Pro­fes­sor of Physics & Applied Physics at Yale.

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