A visit to the Cleveland Metroparks Zoo

Over the weekend, the Wife and I visited some of her relatives in Cleveland.  Though it was a very short trip, we managed to take a trip to the Cleveland Metroparks Zoo, which has a nice collection of exhibits.  We didn’t have that much time at the zoo — we got a late start and had to head right to the airport afterward — but I nevertheless managed to get some nice pictures of the animals!  Let’s take a look…

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The Giant’s Shoulders #24 is up!

The Giant’s Shoulders #24 is up over at Jost a Mon, and to celebrate the 24th edition it includes a timeline of discoveries made in the 24th year of each century !  Many thanks to Fëanor for assembling such an entertaining interactive carnival!

The deadline for the next edition is July 15th, and it will be held at The Dispersal of Darwin.  It will also be a special event, as it will mark the 2nd anniversary of this carnival’s existence!  Entries can be submitted through blogcarnival.com or directly to the host blog, as usual!

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Joe Hill’s Horns

Joe Hill is a good horror author, but not an incredibly prolific one; his first book was 20th Century Ghosts (2005), a collection of ghost stories, and his second was Heart-Shaped Box (2007), which I reviewed on this blog a couple of years ago.  I really adored Heart-Shaped Box, and when I saw that Hill had a new book out, Horns (2010), I didn’t hesitate to snap it up:

Was it worth the wait?  Definitely!  Joe Hill has produced another fast-paced, well-written novel with a bizarre engaging plot and sympathetic characters.

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Posted in Horror | 3 Comments

ResearchBlogging editor’s selections: primate risk-assessment, not-quite-life on Titan, and 65-year-old precursor to the Web

  • A Bonobo in the Hand or Two Chimps in the Bush? Do different species of primates have the same perception of risk, or does it depend on their feeding habits and environment?  With some clever imagery, Jason at The Thoughtful Animal describes some research that shows how different species make very different choices, and suggests why.
  • The media finds life on titan.  Sort of… OMG we’ve found life on Saturn’s moon Titan??!!  Well, not exactly.  Greg at Weird Things discusses the research on Titan and explains that, while the measurements made suggest the possibility of life, there are lots of other possibilities and the jury is still out on this one.
  • ‘As We May Think’ at 65. In 1945, Vannevar Bush published a visionary article in The Atlantic Magazine that discussed the efficient recording of information and the use of mechanical mathematics machines, an article that is credited as being an inspiration for the creation of the World Wide Web.  Simon at Thinking Out Loud discusses the influence this article had on a generation of computer scientists.

Posted this a little later in the day than usual, but still on Monday!  Check back next Monday for more miscellaneous suggestions!

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You could learn a lot from a ducky: the van Cittert-Zernike theorem

(Alternate titles considered for this post: Ducktoral degree, Send in the ducks, Proof by in-duck-tion, Duck Tales, Duck-ing the issue.)

One of my specializations in optics is the theory of optical coherence, which is the theory that characterizes the random fluctuations of light, and the consequences of said fluctuations.  It is typically one of the most difficult optics topics to teach beginning optics students, probably because it combines two challenging bodies of mathematics: wave theory and probability theory.  Any teaching tool that can be used to help students visualize and understand the basics is welcome, though such tools are few and far between in coherence.

Enter the ducks!  Early this year, some colleagues of mine published a short note pointing out that one can visualize a fundamental result from optical coherence theory, the van Cittert-Zernike theorem, by watching the waves a group of ducks generate when they splash into a pond!

The letter is by W.H. Knox, M. Alonso and E. Wolf, “Spatial coherence from ducks,” Physics Today, March 2010, p. 11; it can be freely read here.  Though the letter describes the connection between coherence and ducks, it doesn’t explain what the van Cittert-Zernike theorem is, so I thought I’d fill in a bit of detail with this post!

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Posted in Animals, Optics | 29 Comments

ResearchBlogging editor’s selections: a serendipitous lion hunt, Iceland’s volcano preparedness, tabletop relativity, and doggie dimensions

  • Atlatls to Bows: A Serendipitous Lion Hunt. Continuing his series of posts on the transition of the ancient North Americans from atlatls to bows, teofilo of Gambler’s House talks about a fortuitous discovery of a cache of bows that lead to increased understanding of ancient bow technology.
  • Perception of volcanic hazards in Iceland. The world’s attention was recently focused on Iceland due to the eruption there that paralyzed air travel for days throughout Europe, but Iceland has always been a geothermally active region.  How well-prepared are Icelanders in general to deal with volcanic emergencies?  Jessica at Magma Cum Laude looks at the evidence.
  • Relativity on a human scale. This one will be hard for the relativity denialists to explain!  Chad at Uncertain Principles describes research with atomic clocks that has demonstrated Einstein’s special and general relativity in a tabletop experiment!
  • The assessment of emotional expression in dogs. Everybody seems to agree that dogs are very emotive animals, but do we all see the same emotions in a particular animal?  At her eponymous blog, The Dog Zombie looks at an attempt to apply statistics to understanding how much we agree on a dog’s emotional state.

Check back next week for more “miscellaneous” suggestions!

Posted in General science, Science news | 2 Comments

9 days until The Giant’s Shoulders #24!

I’ve  been very distracted by the addition of a new dog to our household, but I wanted to be sure and remind people that there’s 9 days until the deadline for The Giant’s Shoulders #24, to be hosted at Jost a mon!  Entries can be submitted through blogcarnival.com or directly to the host blog, as usual.

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Into the doggie Abyss…

Update: Alas, it was not meant to be.  My wife is very allergic to the dog, and I’m pretty allergic myself (quite unusual for a Shih Tzu); also, the cats are not adapting well and are very traumatized (which is the cat’s problem; the dog is very good around them for the most part).  We’re going to send Winston back to get him a home without complications.  We’ll miss him terribly.

Well, The Wife and I have taken the plunge and adopted a dog:

This is Dillon, a Shih Tzu that we’ve adopted from a rescue shelter.   The Wife decided she’d like a little animal to baby (our cats aren’t too fond of babying), and I agreed.  He’s a sweet little dog:

Shih Tzus are supposed to be, in general, relatively docile, quiet dogs.  Right now, though, he’s incredibly excited and running all over the place, and the cats don’t know what to make of him.  I have a feeling my blogging will be a little infrequent for a couple of weeks…

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ResearchBlogging editor’s selections: prestigious chimps, eye color domination, and synthesising Souffles

  • Prestigious Chimps and the Emergence of Cultural Innovation. In society, some individuals are natural “trend-setters”, developing new styles and fashions that others follow.  One might be tempted to call this a distinctly human trait, but Eric Michael Johnson at The Primate Diaries describes research on chimps that suggests that they have their own cultural pressures.
  • Eye Color Predicts and Doesn’t Predict Perceived Dominance. Research can sometimes take more unexpected twists and turns than a good thriller!  Daniel Hawes at Ingenious Monkey describes research on whether eye color influences a human’s perceived dominance.  It does, but it doesn’t, but it does!
  • Synthesising Soufflés. Can cooking be considered a science?  Akshat Rathi at Contemplation explains the emerging field of molecular gastronomy, and how it can help you understand the rise of your Soufflés!

For those commemorating Memorial Day in the States, I hope you have a good one!  Check back next week for more “miscellaneous” selections!

Posted in General science, Science news | 2 Comments

Ramsey Campbell’s Creatures of the Pool

As I’ve noted countless times on this blog, Ramsey Campbell is my favorite horror writer of all time.   He is a wizard with words, and the subtle horror of his stories carry a punch that lasts long after you finish reading them.  The tales often read and feel like an extended nightmare, and more than one has kept me up at night — I can think of no other author who still has the ability to do that.

So when I saw that a recent novel of his was finally released as a mass-market paperback in the States, I didn’t hesitate to buy it:

Creatures of the Pool is another great, atmospheric tale, and ranks among my favorite of Ramsey’s novels.  The only criticism I have of it, and it is a mild one, is that is follows a similar trajectory to a number of his other recent stories.

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Posted in Horror | 2 Comments