Tagged: Science RSS

  • euicho 4:45 pm on 10/20/2010 Permalink | Reply
    Tags: five fingers, , , Science, toes   

    5 Fun Phenotypes: How Many Do You Have? 

    All humans have a unique genotype. Your genotype is your genetic makeup, combined from your mother’s and father’s alleles (genes). Your genotype determines what traits you have, called phenotypes. You probably know that things like attached earlobes, freckles, and a widows peak are due to our genotype, but you may have other observable traits you aren’t even aware of.

    My favorite trait, and the one I’m quite thankful to have, is what’s know as the photic sneeze reflex. Sometimes called the Peroutka Sneeze Gene or even ACHOO syndrome (how droll), this reflex causes one to sneeze when exposed to bright light. I had always assumed everyone had this ability, but scientists estimate it affects 18 to 35 percent of the population. Try it out: the next time you need to sneeze but are not quite there, look out the window at the sun or at a light-bulb and if it pushes you over the edge then you have the phenotype! The photic sneeze reflex has intrigued great thinkers as far back as Aristotle. We still don’t know which gene is responsible for it, but we do know only one copy is needed, and it isn’t on either the X nor Y chromosome. How it works is still unexplained by science, but many experts now agree that crossed wires in the brain are the cause.

    sneeze by wise.adam

    Here’s one you may have tested back in high school biology: The gene that detects the odor of cyanide. Do you remember your teacher passing around a vial and asking if you could detect a sweet almond smell? That’s what cyanide smells like to around 20 to 40 percent of the population. Studies have also found that men are less likely to smell cyanide than woman. About 18%-20% of men are not able to smell cyanide at all, whereas only 5%-10% of woman cannot. The rest of the population is able to detect the smell in significant quantities, but only 40% can smell it in trace amounts.

    cyanide by ohsoabnormal

    Quick, clasp your hands together! Now look down at your thumbs. Most people place their left thumb on top of their right one. Try clasping your hands so that the opposite thumb is on top and you’ll notice it doesn’t feel quite right. As random as it may seem, hand clasping with the left thumb on top is a dominant phenotype.

    Gravestone Sculpture 2 by fallingribbons

    Do you have caveman fingers? Some people have hair on the second (middle) joint of one or more of their fingers. If you have hair on any of these middle joints then you posses the dominant phenotype. I was just kidding about the caveman thing–it doesn’t mean you’re less evolved, the absence of this hair is just based on a recessive allele.

    tiiiiiiiiiny camera, maaaassif lens by Abulic Monkey

    Speaking of digits, next time you’re barefoot or in sandals, look at your second toe. If it’s longer than your big toe you have what is called morton’s toe (or sometimes “Greek foot”). Although this is a dominant genetic trait, it’s part of the genotype of only 10% of the world’s population (and can be a real hassle when sizing Five Fingers)!

    sparkle toes by Robert S. Donovan

    There are many other common and observable phenotypes, but these are some of my favorites. To learn more about genetics check out Wikipedia’s series on the subject (be sure to scroll down to Related information at the very bottom).

    Sources:

    http://www.scientificamerican.com/article.cfm?id=why-does-bright-light-cau

    http://en.wikipedia.org/wiki/Photic_sneeze_reflex

    http://www.helium.com/items/1532959-human-genetic-traits-with-complete-dominance?page=2

    http://en.wikipedia.org/wiki/Morton%27s_toe

    “Sneeze” by wise.adam
    “Green Poison” by ohsoabnormal
    “sparkle Toes” by Robert S. Donovan
    “Gravestone Sculpture 2″ by fallingribbons
    “tiiiiiiiiiny camera, maaaassif lens” by Abulic Monkey

     
  • euicho 9:46 pm on 3/20/2008 Permalink | Reply
    Tags: , Science,   

    Simple Chord Arpeggiation 

    Some waveform

    I think Celemony has just changed digital audio manipulation forever. Watch this video, its so awesome! They’ve created what they call “Direct Note Access”, which i call arpeggiation, or breaking a chord down to its individual notes. This may seem simple but was never possible before! We’ve always wanted it, but to my knowledge nobody had yet done it (or at least not in a consumer product with a simple GUI to boot!).

     
  • euicho 9:19 pm on 3/18/2008 Permalink | Reply
    Tags: , , , Science   

    Mourning the last of the Big 3 

    Sir Arthur C. Clarke

    Today we lost the last of the great 3 masters of science fiction. Arthur C. Clarke passed away at 1:30am local time in Sri Lanka, where he’d lived for over 50 years, of breathing complications. He was 90 years old.

    Pay your respects to this science fiction (and science fact) legend by re-reading your favorite novel of his. If you’ve never read him, do yourself a favor and try any of his extensive bibliography.

    There is a good semi-obit at BBC News, and you can learn more about this amazing man at his wikipedia article.

    With the loss of the great Gary Gygax just two short weeks ago, this is truly a sad month for us geeks.

    Godspeed you, Sir Arthur C. Clarke.

     
  • euicho 2:13 pm on 4/21/2007 Permalink | Reply
    Tags: , Science   

    Impossible to create a “School Shooter” profile 

    In the wake of the Virginia Tech shootings, you may find several people oversimplifying the human psyche and spouting in their completely unprofessional opinions like “He was a loner” or “He wrote disturbing stories” (Yeah, so does Stephen King. Does he kill people? Not AFAIK).

    The fact of the matter is creating a profile of the “School Shooter” type is impossible. Find out why at livescience.com:

    But again, most mentally-disturbed individuals don’t pick up a gun and use it. “You can’t say they have isolated themselves and they are depressed, so they are going to turn into a mass murderer,” Nelson told LiveScience. “The problem is now you’ve labeled literally tens of thousands of people incorrectly, because most people who are depressed, isolated and can’t talk, don’t become mass murderers.”
     
  • euicho 10:41 pm on 12/28/2006 Permalink | Reply
    Tags: , , , Science, ,   

    Mythbusters Goodies Part 2 


    Welcome to Part 2 of Mythbusters Goodies. In Part 1 we went over some neat areas of Jamie Hyneman’s M5 Industries website. In this installment, we’ll take a look at the eclectic and weird things on Adam Savage’s website, adamsavage.com. Follow along, children!
    (More …)

     
  • euicho 3:31 pm on 12/4/2006 Permalink | Reply
    Tags: , , , Science, ,   

    Mythbusters Goodies 


    Damn I’m such a procrastinator. Thank you to those who trudge on with me despite the infrequency with which I post. I blame my tight schedule, and more recently, WoW (yes, I’ve become and addict. No I don’t know what took me so long. I though I was strong enough to resist, alas I am not). Mostly, however, the blame rests squarely on my own shoulders. Anyway, thank you again to my faithful readers. Moving on…
    (More …)

     
    • Jesse 8:56 pm on 12/6/2006 Permalink

      I wished they would go more into the engineering behind their inventions and rigs they build for the show. I know the average person wouldn’t understand 5% percent of it though so I can see why they don’t bother to elabortate.

    • euicho 9:36 pm on 12/8/2006 Permalink

      Yeah but still, I agree it would be really cool if they showed more of tyhe engineering background. One the Q&A episode they did show the little black reference book they use for most of the equations and constants they use in their calculations.

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