Christmas 2014

Newgrange  is  an ancient structure in Ireland so constructed that the sun, at the exact time of the winter solstice, shines directly down a long corridor and illuminates the inner chamber. More about Newgrange  here  and  here.

Grim  has an Arthurian passage about the Solstice.

Don Sensing has thoughts astronomical, historical, and theological about  the Star of Bethlehem.

A wonderful 3-D representation of the  Iglesia San Luis De Los Franceses. Just click on the linkthen you can look around inside the cathedral. Use arrow keys or mouse to move left/right, up/down, and shift to zoom in, ctrl to zoom out.

Vienna Boys Choir, from Maggie’s Farm

Lappland in pictures…link came from the great and much-mourned  Neptunus Lex

Snowflakes and snow crystals, from Cal Tech. Lots of great photos

A Romanian Christmas carol, from The Assistant Village Idiot

In the bleak midwinter, from The Anchoress

Rick Darby  has some thoughts on the season. More  here.

A Christmas reading from  Thomas Pynchon.

The  first radio broadcast of voice and music  took place on Christmas Eve, 1906.  (although there is debate about the historical veracity of this story)

An air traffic control version of  The Night Before Christmas.

Ice sculptures  from the St Paul winter carnival

O Come, O Come, Emmanuel, sung by  Enya

Gerard Manley Hopkins

Jeff Sypeck  on a winter garden

A Christmas-appropriate Poem from Rudyard Kipling

(may not seem like a Christmas-appropriate post based on the first 2 stanzas, but read on…)

“Gold is for the mistress — silver for the maid —
Copper for the craftsman cunning at his trade.”

“Good!” said the Baron, sitting in his hall,
“But Iron — Cold Iron — is master of them all.”

So he made rebellion ‘gainst the King his liege,
Camped before his citadel and summoned it to siege.
“Nay!” said the cannoneer on the castle wall,
“But Iron — Cold Iron — shall be master of you all!”

Read more

The Christmas Eve Radio Broadcast of 1906

…a case study in the difficulties of finding historical truth.

On Christmas Eve of 1906, a few shipboard radio operators–listening through the static for signals in Morse code–heard something that they had never before heard on the radio, and that most had never expected to hear. A human voice.

The first voice radio broadcast was conducted by Reginald Fessenden, originating from his experimental station at Brant Rock, Massachussetts. After introducing the transmission, Fessenden played a recording of Handel’s “Largo” and then sang “O Holy Night” while accompanying himself on the violin. Fessenden’s wife and a friend were then intended to conduct a Bible reading, but in the first-ever case of mike fright, they were unable to do it, so the reading was conducted by Fessenden as well.

Fessenden’s radio work at this period was based on a high-frequency AC generator (alternator), an electromechanical device created by Ernst Alexanderson of GE and modified by Fessenden.   The signals were generated at somewhere around  45-80khz.  (Low frequency compared to today’s normal radio, where the AM band starts at around 500khz; high frequency compared to the 50-60 hz that AC generators normally produce.)  The Alexanderson machines were expensive and very large–broadcast radio on a commercial scale was not practical until the introduction of the vacuum tube for both transmitting and receiving, several years later.

The italicized story, which was the subject of a post I wrote in 2004, has apparently been accepted in radio and electronics engineering circles for many years: in fact, in 2006 there were commemorative events of the broadcast.  More recently, though, the story has been challenged:  James O’Neal  has done considerable research on the matter and concludes that the Christmas Eve broadcast never actually happened,  based on lack of contemporaneous evidence (logs of other radio stations, for example)  among other factors.  He argues that Fessenden was no shrinking violet, indeed, he was a publicity hound and would have been expected to do everything possible to publicize such an obviously PR-able achievement…if it had actually happened.  (There is no question that Fessenden did do pioneering work in radio, including speech/music transmission: the controversy deals specifically with the legendary Christman Eve broadcast.)

Comes now John Belrose, who has also done considerable research on this matter and who argues that the broadcast did in fact happen.  Belrose notes that from a business point of view, Fessenden was pursuing radio for point-to-point applications, rather than broadcasting, and hence would have had no reason to devote great effort to publicizing the Christmas Eve event.  I found a much longer analytical piece by Belrose here; he has done further research and continues to believe that the broadcast did in fact happen. The associate editor of IEEE Antennas and Propagation Magazine, where the article appears, finds his arguments persuasive.

1906 was only 108 years ago, not long in historical time. Yet even for an event so relatively recent, which would have involved several people directly and been heard by several more, and which was relevant to extremely intense litigation around the rights to various radio-related patents, anything near absolute certainty appears impossible to attain.

In any event, here’s O Holy Night.

Happy Hanukka

I’m going to make a suggestion that you will thank me for when you eat your potato latkes: cranberry sauce.

latkes

Finally!

A truly important article from the NY Times:

That’s why, I’m sorry to say, if you want a truly great, hot, crisp doughnut, chances are you’re going to have to make it yourself. Like anything involving deep-frying, D.I.Y. doughnuts are a bit of a project, but they’re less work than you might think. And once you’ve mastered the basic recipe — this one is for fluffy yeasted doughnuts, as opposed to the denser cake variety — you can geek out to your heart’s content on the glazes, toppings and fillings.

Happily the NYT article actually links to some recipes.

My aunt has a great recipe for sufganiyot, which are a sort of jam-filled Israeli yeast donut that’s traditionally made for Hannukah, at least by my aunt. I ought to ask her for it.