What does negative refraction LOOK like?

My friend Personal Demon recently forwarded me an article that deals with a rather cute idea: Photorealistic ray tracing aids understanding of metamaterials.  “Metamaterials” may be described roughly as materials with a man-made structure on the scale of nanometers which gives them unusual optical properties not to be found in nature.  With that in mind, the rest of the article title, though rather technical-sounding, simply refers to computer simulations which can answer the following question:

Suppose you have constructed a piece of metamaterial of “everyday” size.  What does it ‘look’ like to the unaided human eye?

This to me is an interesting question for a number of reasons.  For one, it is not yet within our power to construct metamaterials which are larger than microscopic size (though, as I’ve noted previously, we’re getting closer).  Being able to simulate the materials gives us a head-start in developing possible applications.  Second, we already know that metamaterials have the potential to produce interesting visual effects — including, possibly, invisibility!  Finally, it can be very difficult, and intellectually stimulating, to try and make the connection between what light is doing in an optical system and how the system would appear to a person looking at it.

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Posted in Optics | 13 Comments

Dollhouse survives to season 2!

Tonight the wife and I finally got around to watching the season finale of Joss Whedon’s Dollhouse, which we had DVR’ed while out on the honeymoon.  It was actually a quite nice episode, and introduced a few nice twists I hadn’t expected and began to take the show into an entirely new direction.  Would we get more?  I wasn’t hopeful, as Dollhouse had absolutely miserable ratings, largely in part due to FOX putting it on Friday.

But, turning to IMDB, lo and behold!  Dollhouse will be back for a second season.  Apparently non-traditional viewing, such as Tivo and online viewing, was much stronger than the traditional ratings suggest.

This gives me some hope that the show which preceded it, Terminator: The Sarah Connor Chronicles, might be renewed as well.

What is it with FOX and the cancellation of good shows?  Of course, there’s Firefly, which was killed well before it deserved to be, and Family Guy, which had to be resuscitated several times after premature axing.  I personally will never forget, or quite forgive, FOX for putting Futurama on at 7 pm on Saturdays during its original run — which meant that 50% of the time it got pre-empted by NFL games.   Here’s hoping that Dollhouse and TSCC don’t suffer similar ill-treatment…

Posted in Entertainment | 8 Comments

The Giant’s Shoulders #11 is up!

The eleventh edition of The Giant’s Shoulders is up at Curving Normality!  Many thanks to Rense for assembling it!

The deadline for the next edition is June 15th, and it will be hosted at The Secret of Newton.

Posted in General science, Science news | 2 Comments

William Beckford’s Vathek

I’ve been working my way through a number of weird fiction tales that weird fiction writer and enthusiast H.P. Lovecraft was fond of.  Vathek, by William Beckford (1760-1844), is the type of story I find nearly irresistible: a proud, arrogant Caliph embarks upon a quest for power and wisdom which leads to unspeakable acts and, ultimately, damnation:

vathek

H.P. Lovecraft thought very highly of Beckford’s work, and included a lengthy discussion of it in his celebrated essay Supernatural Horror in Literature (1927):

Meanwhile other hands had not been idle, so that above the dreary plethora of trash like Marquis von Grosse’s Horrid Mysteries (1796), Mrs. Roche’s Children of the Abbey (1798), Mrs. Dacre’s Zofloya; or, the Moor (1806), and the poet Shelley’s schoolboy effusions Zastro (1810) and St. Irvine (1811) (both imitations of Zofloya) there arose many memorable weird works both in English and German. Classic in merit, and markedly different from its fellows because of its foundation in the Oriental tale rather than the Walpolesque Gothic novel, is the celebrated History of the Caliph Vathek by the wealthy dilettante William Beckford, first written in the French language but published in an English translation before the appearance of the original. Eastern tales, introduced to European literature early in the eighteenth century through Galland’s French translation of the inexhaustibly opulent Arabian Nights, had become a reigning fashion; being used both for allegory and for amusement. The sly humour which only the Eastern mind knows how to mix with weirdness had captivated a sophisticated generation, till Bagdad and Damascus names became as freely strewn through popular literature as dashing Italian and Spanish ones were soon to be. Beckford, well read in Eastern romance, caught the atmosphere with unusual receptivity; and in his fantastic volume reflected very potently the haughty luxury, sly disillusion, bland cruelty, urbane treachery, and shadowy spectral horror of the Saracen spirit. His seasoning of the ridiculous seldom mars the force of his sinister theme, and the tale marches onward with a phantasmagoric pomp in which the laughter is that of skeletons feasting under arabesque domes. Vathek is a tale of the grandson of the Caliph Haroun, who, tormented by that ambition for super-terrestrial power, pleasure and learning which animates the average Gothic villain or Byronic hero (essentially cognate types), is lured by an evil genius to seek the subterranean throne of the mighty and fabulous pre-Adamite sultans in the fiery halls of Eblis, the Mahometan Devil. The descriptions of Vathek’s palaces and diversions, of his scheming soweress-mother Carathis and her witch-tower with the fifty one-eyed negresses, of his pilgrimage to the haunted ruins of Istakhar (Persepolis) and of the impish bride Nouronihar whom he treacherously acquired on the way, of Istakhar’s primordial towers and terraces in the burning moonlight of the waste, and of the terrible Cyclopean halls of Eblis, where, lured by glittering promises, each victim is compelled to wander in anguish for ever, his right hand upon his blazingly ignited and eternally burning heart, are triumphs of weird colouring which raise the book to a permaneat place in English letters. No less notable are the three Episodes of Vathek, intended for insertion in the tale as narratives of Vathek’s fellow-victims in Eblis’ infernal halls, which remained unpublished throughout the author’s lifetime and were discovered as recently as 1909 by the scholar Lewis Melville whilst collecting material for his Life and Letters of William Beckford. Beckford, however, lacks the essential mysticism which marks the acutest form of the weird; so that his tales have a certain knowing Latin hardness and clearness preclusive of sheer panic fright.

What did I think about it?

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Posted in Horror, Lovecraft | 6 Comments

Two days until The Giant’s Shoulders #11!

Here’s one last reminder that the deadline for The Giant’s Shoulders #11, to be held at Curving Normality, will be here in 2 days!  Entries can be submitted through blogcarnival.com or directly to the host blog, as usual!

Posted in General science, Science news | 3 Comments

Optics in the Haunted Mansion!

During our visit to Walt Disney World, the new wife and I made sure to hit all the classic rides in the Magic Kingdom: Pirates of the Carribean, The Tiki Room, The Haunted Mansion, even It’s a Small World (though, alas, not Space Mountain, which is under renovations until November).  The Haunted Mansion is one of my favorites, with its classic Gothic ghost story atmosphere and dark sense of humor.  As a child, I was terrified of the essentially harmless attraction.  This trip, as a professor of optics, I was delighted to not only see the clever special effects, but deconstruct them — to “peek behind the curtains”, so to speak.

I suppose some would think that this peek would “ruin the magic” or “unweave the rainbow“.  For me, though, I find it a joy to see how people’s ingenuity can lead to wonderfully fun, even beautiful, attractions.  The Haunted Mansion is filled with clever applications of very simple optics, and I can’t resist explaining one of them.

SPOILER ALERT!  IF YOU FEEL THAT UNDERSTANDING HOW AN ATTRACTION WORKS RUINS IT, DON’T READ ANY FURTHER…

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Posted in Entertainment, Optics | 18 Comments

Thanks to all!

Well, I’m back from the honeymoon!  Thanks to all who gave well-wishes and congratulations in my previous post.  I should get back to detailed blogging this week, but in the meantime, here’s a picture from Epcot at night:

epcotatnight

Yeah, we went to Disney World for our honeymoon!

Posted in Personal | 2 Comments

Just Married!

If all went well, I got married to the fiancée within the past hour!  (Obviously, this is a post I scheduled in advance.)

For obvious reasons, I won’t be blogging much, if at all, over the next week.  After that, I’ll be back in the swing of things!

Posted in Personal | 15 Comments

Destroying the planet… with science!

When the Large Hadron Collider was fired up for the first time back in September, it caused much wailing and rending of clothes by people who were convinced that the device would create miniature black holes which would destroy the Earth, even though the initial test wouldn’t come close to the energies hypothetically required for such an unlikely event.  After the test, others were irrationally convinced that the LHC had spawned earthquakes around the globe; I did a rather thorough criticism of that idea here.

It’s interesting to note that such fears have been cropping up since the dawn of atomic physics, sometimes seriously and sometimes as a joke.  A physics professor I had as an undergraduate shared the story of his research on neutrinos in the 1960s, which took place in a shack outside the grounds of a nuclear reactor.  He said that he and his classmates were tempted to leak a story to the press that they were working on a “neutrino bomb”, which was so effective because it could pass through anything.  They realized, though, that the public wouldn’t realize that, if neutrinos pass through everything without any significant effect, that they couldn’t hurt you!

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Posted in ... the Hell?, History of science, Physics | Leave a comment

13 days until The Giant’s Shoulders #11!

This is your regularly scheduled reminder that the deadline for The Giant’s Shoulders #11, to be held at Curving Normality, will be here in 13 days!  Entries can be submitted through blogcarnival.com or directly to the host blog, as usual!

Posted in General science, Science news | Leave a comment