Do You Have Lamarr in Your Car?

It has been suggested that the short-range wireless protocol known as Bluetooth  should instead have been called  Lamarr, in honor of the actress/inventor Hedy Lamar.

Hedy (maiden name Kiesler) was born in Vienna in 1914. From her early childhood she was fascinated by acting–and she was also very interested in how things worked, an interest which was encouraged by her bank-director father.  She began acting professionally in the late 1920s, and gained fame and notoriety when she appeared–briefly nude–in the film Ecstasy.  It was followed by the more respectable Sissy, in which she played the Empress Elisabeth of Austria.

In 1933, Hedy married the arms manufacturer Friedrich Mandl, finding him charming and fascinating and also probably influenced by his vast wealth.  She was soon turned off by his Fascist connections and his extremely controlling nature–rather ridiculously, he even tried to buy up all copies and negatives of Ecstasy.  He did not allow her to pursue her acting career, but did require her to participate, mainly as eye-candy, in high level meetings with German and Italian political leaders and with people involved in military technology.  What she heard at these sessions both interested and alarmed her.

Finding her marriage intolerable and the political situation in her country disturbing, Hedy left and first came to London. There she met MGM head Louis B Mayer, who offered her an acting job at $125/week.  She turned down the offer, but booked herself onto the same transatlantic liner as Mayer, bound for the USA.  On shipboard, she impressed him enough to receive a $500/week contract.  He told her that a name change would be desirable, and she settled on “Lamarr”…the sea.

With the outbreak of war in Europe, Hedy followed the news closely.  For reasons that are not totally clear, she began thinking about the problems of torpedo guidance:  the ability to correct the weapon’s course on its way to the target would clearly improve the odds of a hit.  She had heard the possibility of a wire-guided torpedo discussed over dinner at Mandl’s…but this approach had limitations.  Radio was an obvious alternative, but how to prevent jamming?

As an anti-jamming technique, she hit on the idea of having the transmitter and the receiver change frequencies simultaneously and continuously…she may have been inspired partly by the remote-control radio receiver which was available at the time, possibly either she owned one or had seen one at somebody else’s home.  With synchronized frequency changes at both ends of the radio link, jamming would be impossible unless an enemy knew and could emulate the exact pattern of the changes.  But how to synchronize the transmitter and the receiver?

Enter Hedy’s friend George Antheil, who called himself “the bad boy of American music.”  Antheil was fascinated by player pianos and had created and performed compositions which depended on simultaneous operation of several of these players.  Maybe the punched paper strips used by player pianos could provide a solution to the frequency-hopping problem?

US Patent 2282387, issued to Hedy Kiesler Markey (the name reflecting a brief unsuccessful marriage) and George Antheil, implemented this approach.  The feeding of the paper strip on the launching ship and that inside the torpedo would be started simultaneously, and the holes in the strips would select the frequencies to be used at any given time…88 rows are mentioned, offering 88 frequency choices, but obviously this number could be smaller or larger.  Commands to the rudder of the torpedo would be sent via modulation of a carrier wave on the always-changing frequency selected.  (The two inventors had retained an electrical engineer to assist with specification of some of the details.)

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President Trump’s ‘Xanatos Gambit’ Government Shutdown

Welcome to day twenty eight day of the U.S. Federal government shutdown.

Normally “Federal Government shut downs” are a game of “chicken” where Congressional (usually GOP) and Executive Branch (usually Democrat) politicians are playing a game of virtue signaling to their political base until the accumulated   toxic waste of bad media and public protest let the Congress “compromise” on spending more money with limited blow back in their next partisan primary.

This time is very different, and it’s far more than just a matter of political parties changing sides in government.

President Trump is working to a “Xanatos Gambit” political-media strategy tree that looks whole lot like his 2015 GOP primary campaign from  June 16, 2015 to  week of December 2-8, 2015.   Where he ran a high energy offensive political campaign of “free media by outrageous statements” that sucked all the political air time out of his GOP opponent’s political campaigns and established his ‘billionaire who cares more for the common man  than D.C. politicians‘ street cred’ via populist anti-open borders immigration positions of protecting American citizens from illegal immigrant Mexican criminals and Muslim terrorists.

President Trump’s “Big   Macs served at the White House” and grounding Speaker Pelosi’s Congressional Junkets on military transports during a government shut down over funding “The Wall” are both very much in that “Xanatos Gambit” frame work.   President Trump is staying on the offensive so House Democrats and the media cannot “get off a shot” over the Government shut down.   While at the same time defining the Democrats as being only interested in the perks of government power and not the public good they are supposed to serve.

https://static.tvtropes.org/pmwiki/pub/images/XanatosGambitDiagram_7509.jpg
This is a decision diagram example of a “Xanatos Gambit. Source: https://tvtropes.org/pmwiki/pmwiki.php/Main/XanatosGambit

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Stink on Ice

Count De Monet “Sir, the peasants are revolting!”
King Louis “You said it. They stink on ice.”

Played for laughs in a movie by a producer/performer whom many of us doubt would ever get a green light today. But the great and good in the media and in the intellectual class really do affect the pose that the peasants stink on ice, and say so, at every opportunity and in every possible venue. They despise the residents in Flyoverlandia those who had the temerity to be conservative, conventionally religious, independent of thought, fiscally-careful, or even (gasp!) voting for Trump or against Her Inevitableness, the Dowager Empress of Chappaqua. Victor Davis Hansen collected up a litany of poisonous disparagement in this recent essay; a collection that is all the more depressing as an assemblage, nasty as each one of them were considered in isolation as they occurred and bubbled up to the top of the outrage cycle.

How did all this come about? (David F. ventured on this topic earlier this month.) I mean, there has always been a certain degree of social snobbery on the part of those who viewed themselves as being of the upper class, the managerial sort, the better-educated, and those who honestly felt they were the winners in the Darwinian struggle. The intellectual and artistic set always did regard themselves as a cut above the common herd. Over in Jolly Olde England, the gentry and nobility enforced their own supreme position with a fine sense of social brutality against ambitious interlopers.

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2018 Reading

Some books that I read and liked over the last year…

The Future is History, Masha Gessen.  Russia during the last days of Communism, during the transitional age, and under Putinism, viewed through the personal stories of numerous individuals.

On Tangled Paths, Theodor Fontane.  The author has been called “The Jane Austen of Germany.”  In this novel,  it is the *male* protagonist who is under pressure to marry into money to save his family from financial disaster.  Good character development and a vivid portrayal of Berlin in the 1870s

The Bounty:  The True Story of the Mutiny on the Bounty, Caroline Alexander.  The famous mutiny, the events leading up to it, and its aftermath.  A much more favorable interpretation of Captain Bligh’s character than the usual view.

Red Star Under the Baltic,  Victor Korzh.  Memoirs of a Soviet submarine commander who served in a little-known theater of WWII.  The author writes largely from an engineering perspective, and in addition to combat episodes he describes the remarkable efforts that were necessary to keep the submarine in operating condition–including such things as repurposing the bow thruster drives, while at sea, to replace the failed stern thruster drive system.

A Pocketful of Stars and other books in the Applied Topology series by Margaret Ball, which I reviewed here.  Don’t let the Applied Topology tag scare you off; no math is required to read and enjoy.

Born Fighting:  How the Scotts-Irish shaped America, James Webb.  Some interesting history and perspectives.  It’s worthwhile to read this book in conjunction with Thomas Sowell’s Black Rednecks and White Liberals.

A Vagabond Journey Around the World, Harry Franck.  In 1904, this recent college graduate decided to travel around the world starting with no money at all.  (He modified this plan to carry enough cash to pay for photographic supples.)  Very interesting, though long.  Franck made and wrote about numerous other trips, including a 1930s visit to the Soviet Union which he documented in A Vagabond in Sovietland.

A World on Edge:  The End of the Great War and the Dawn of a New Age, Daniel Schoenpflug.  The author paints the environment in the immediate aftermath of the War by telling the stories of individuals ranging from Harry Truman, Ferdinand Foch, Crown Prince Willhelm of Prussia,  Arnold Schönberg, Kathe Kollwitz, Walter Gropius, and Ho Chi Min to many lesser-known individuals such as a former sailor of the German Navy and a Cossack woman named Marina Yurlova.

Tragedy & Challenge:  An Inside View of UK Engineering’s Decline, Tom Brown.  The problems and fate of British manufacturing companies, as seen by an individual with extensive experience as an executive and board member.  There’s a review here.

The Tyrant’s Daughter, J C Carleson.  Fifteen-year-old Laila lived a privileged life in her unnamed Middle Eastern country, where her father was absolute ruler.  Then he was killed in a coup, and she escapes with her mother and brother to a suburb of Washington DC…where she faces both the problems of fitting in at her new school and the haunting question of whether her father was indeed the monster that he is portrayed by the American news media.  This is positioned as a YA (teenager)  book, but is IMO also good reading for adults.  The author is a former CIA agent.

The Theme is Freedom, John Dos Passos.  A collection of essays by this “Lost Generation” writer.  I quoted his observations about some of his Leftist comrades of the 1920s, here.

Several more, which I may review individually and/or in a future batch.

I’m currently reading a novel of the American Revolution called Celia Garth, which I learned about from a discussion at Bookworm.  It was highly recommended by Sgt Mom, among others.  I’m really liking it so far.

Any Updates on 3 D Printing ?

There have been a couple of discussions of 3D printing in the past.

Mr. Hornick has a video, entitled “3D Printing State of the Art: Industrial” from May of 2015 which gets into detail about the current state of the art in 3D printing. It is a good primer if you are interested in the field. His deep knowledge as well as his enthusiasm make for a compelling presentation of a highly technical subject.

I’m getting interested in 3 D printing of Radio Controlled Airplane models.

Like this one.

That has an almost 5 foot wing spread.

Just wondering about the sort of 3D printer that would be required.