Editor’s selections: Galactic light switches, deadly rhododendrons, and railways of light

  • Quasar light switches. You don’t want light switches like this at home! Emma at we are all in the gutter talks about recent research concerning quasars and active galactic nuclei — after powering down, they can sometimes start back up again! This is a great potential confirmation of the connection between quasars and radio galaxies.
  • On the dangers of Rhododendrons! Sure, they’re pretty, but Rhododendrons can also increase the likelihood of landslides! Dr. Dave at On the slide discusses the research.
  • Particle sorting with a miniature light railway. We’re a long way from devising Star Trek-style tractor beams, but technology which uses optical fields to move particles is already of practical importance. Stuart Watson at Optical Futures discusses recent research into such “optical tweezers”.
  • Check back next Monday for more “miscellaneous” highlights!

    Posted in General science, Science news | Leave a comment

    9 days until The Giant’s Shoulders #15!

    There’s 9 days left until the deadline for The Giant’s Shoulders #15!  It will be hosted at Entertaining Research, and entries can be submitted through blogcarnival.com or directly to the host blog, as usual!

    Posted in General science, Science news | Leave a comment

    Computed tomography as art

    A friend (h/t David) sent this to me a bit over a week ago, and now that I’m less distracted by work, I thought I’d pass it along!  On August 23rd, The Daily Mail reported on a new science-based art form: making art out of images generated via computed tomography!

    Hong Kong radiologist Kai-hung Fung takes the data generated during a CT scan and colors them using a ‘rainbow technique’ of his own design.  The images which result are quite striking, such as this image of the back of the nose:

    I’ve always been intrigued by the intersection of art with science; with today’s software, it is possible and even useful to present scientific data with an eye towards beauty as well as clarity.  Add to that amazing imaging technology like CT scans (which I discuss in this old post), and one can make jaw-dropping art.

    Posted in Physics | 2 Comments

    DougJ of Balloon Juice won the internets yesterday!

    I don’t usually like making short posts without adding much substance, but I couldn’t let this one go by. DougJ of Balloon Juice wrote yesterday about people’s desire to see Dick Cheney actually run for President in 2012. His choice of title for the post is priceless, and I hereby declare that DougJ won the internets yesterday…

    Posted in Politics, Silliness | 1 Comment

    Claimed! by Francis Stevens

    Not too long ago, I took a first look at the weird short fiction of Francis Stevens (1883-1948), a groundbreaking author who has been credited with helping create the genre of “dark fantasy“.  Though Stevens was a somewhat uneven writer when it came to character development, she came up with some wonderfully diabolical plots and weird imagery.

    Stevens was sadly not very prolific, and wrote only a small number of novels, primarily to support her invalid mother.  I’ve picked up a few of them and am working my way through them; the first on my list was the novel Claimed! (1920):

    claimed

    The novel is a short and fast read — only 135 pages — and tells the story of a stubborn man’s battle with a supernatural power of the seas.  I enjoyed the story, though I felt it was a somewhat average weird tale, albeit punctuated with some wonderfully creepy moments and one character whose personality really shines and is the focus of the story.

    Continue reading

    Posted in Horror | 4 Comments

    Off it goes…

    Well, I just dropped my tenure package off to the RPT committee.  Now we play the waiting game…

    …Ah, the waiting game sucks — let’s play “Hungry Hungry Hippos”!

    Posted in Personal | 3 Comments

    On passing adult bronze ‘moves in the field’

    Whew!  One more stressful deadline is passed, and successfully!  On Sunday, I passed my adult bronze ‘moves in the field’ figure skating test!  Of course, most readers probably have no idea what that means.

    The USFSA (U.S. Figure Skating Association) is the official organization for U.S. figure skating, and they administer ranking tests which can be used as personal achievement goals or to determine one’s level for competition.  I’ve been figure skating for some thirteen years, and haven’t bothered with testing for about ten years.  This year, though, my skating coach convinced me (i.e. bullied me!) into testing again.

    Apparently I don’t have enough going on, with classes, tenure planning, book writing, blog writing, research, and house stuff!

    I decided to follow the “adult track” of testing, which is more compressed and less rigorous than the standard track that the young kids do.  The adult track consists of pre-bronze, bronze, silver and gold levels.  I was grandfathered into the pre-bronze level from my previous tests, and therefore took the bronze test.

    Moves in the field” refers to skating elements such as various turns and edge transfers, basically all those techniques that can be used to get from point A to point B.  To give you an idea of what is involved, here is the official test book figure of the “5-step mohawk” pattern I had to perform:

    5step

    To give you a sense of the terminology, RFI = right front inside, MO = mohawk,  LBO = left back outside, etc.

    Fortunately, I passed the test, and even enjoyed the experience somewhat, though I strangely find such tests more stressful than skydiving.  Now I’ll hopefully have the mental capacity to get my tenure package out of the way later this week…

    In a completely unrelated note, I started playing the XBox360 game Batman: Arkham Asylum this weekend.  The game is really, really good; I’ll probably review it in its entirety once I finish it.  I’ve you’ve ever wanted to be Batman, this game is the closest you’ll probably ever come!

    Posted in Personal, Sports | 6 Comments

    ResearchBlogging editor’s selections: Adaptive optics, adaptive mimicry, and adaptive freeloading

  • Binocular adaptive optics simulator: the future of vision assessment now! (or the end of phoropters?) At Optics Confidential, Pablo Artal discusses his own research on adaptive optics, which could in the end finally change the 100-year old use of the phoropter in eye exams.
  • Mimicry: survival or flattery?… Most of us are familiar with animal mimicry, in which one species is ‘disguised’ as another.  Jim Caryl at mental indigestion reports on fascinating research on mimicry at the molecular level, which allows bacteriophages to safely invade target bacteria.
  • Freeloading pays off, but only up to a point. While we’re on the subject of sneaky tricks tricks by bacteria, Iddo Friedberg at Byte Size Biology talks about “social behavior” amongst bacterial colonies, and how computer simulations show that some bacteria can act are “freeloaders”!
  • Posted in General science, Science news | Leave a comment

    The other meaning of “dimension” and its use in physics

    Thanks to the advent of relativity theory, and string theory in recent decades, there’s a lot of talk in physics about space having extra, unseen dimensions — up to 11 spacetime dimensions in one version of string theory!  These days, the word “dimension” in physics immediately evokes Twilight Zone imagery:

    There is a fifth dimension, beyond that which is known to man. It is a dimension as vast as space and as timeless as infinity. It is the middle ground between light and shadow, between science and superstition, and it lies between the pit of man’s fears and the summit of his knowledge. This is the dimension of imagination. It is an area which we call the Twilight Zone.

    (Fun fact: the introduction to the show changed pretty much every year it was on.  See Wikipedia for the text of all the intros!)

    The term “dimension”, however, has another meaning in physics: a more mundane one, but equally important.  This other type of dimension, used in what is known as dimensional analysis, has been used to gain surprising insight into difficult physical problems.

    Continue reading

    Posted in Physics | 14 Comments

    Happy birthday to G.W. Bailey!

    I was watching The Closer the other night, and I was observing again how much I like the character of Lt. Provenza, and the actor G.W. Bailey who plays him.  In a nice bit of synchronicity, it turns out that I looked him up only a couple of days before his birthday today!

    Bailey, who turns 65 today, has had a long and fun career.  He seems to have made a guest appearance on every classic television show of the 70s and 80s: Charlie’s Angels, CHiPs, Starsky and Hutch, Soap, Laverne & Shirley, Lou Grant, Happy Days, Benson, M.A.S.H., St. Elsewhere, Remington Steele, Simon & Simon, Newhart.

    His real mark on the 80’s was his recurring role as the cantankerous Lt. Harris in the Police Academy films.  I personally will think of him most fondly for his role as the town drunk and sidekick Peter in the underappreciated cowboy comedy Rustler’s Rhapsody.  Now he really shines as Lt. Provenza in The Closer, and I couldn’t have been happier to see him still in action.

    A very happy birthday to G.W. Bailey, and best wishes for a long and prosperous career!

    Posted in Entertainment | Leave a comment