Posts Tagged ‘science’

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What is tattoo Tuesday about?

October 15, 2013

Tattoo Tuesday is about jellyfish –  because I think they pretty and interesting.  I remember gathering and studying little pink ctenophores – which are comb jellies – relatives of jellyfish, when I was in college on a biology field trip to Chesapeake Bay.  We tromped around the Bay in February, gathering specimens and studying them in the Marine Fisheries Lab nearby.  I was particularly taken with the comb jellies. Their rows of cilia undulated down their bodies, propelling them along.  Fascinating to watch.

comb jelly

Here are the tattoos:

jellyfish 3

jellyfish 2

jellyfish 1

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What am I sappy cat blogging, part II

September 27, 2013

Amazing and beautiful photographs of the Cat’s Paw nebula in the constellation Scorpius taken by the Atacama Pathfinder EXperiment (APEX) telescope in Chile.

cats paw nebula

and this one:

apex_catspaw.jpg.CROP.original-original

The story, from Bad Astronomy on Slate, explains that the flame-like filaments of star-forming materials are actually, in this case, mind-bogglingly cold, at around minus 445 degrees Farhenheit.

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How am I seeing?

August 19, 2013

RTEmagicC_scoring_munsell.gif

I saw this story from the New York Times on glasses that can correct some kinds of color blindness and I thought that was interesting. 

It made me think about how different perceptions can be for different people.  I used to drive myself crazy when I was a kid wondering about that.  Were there some people for whom chocolate tasted terrible and liver tasted good, and what do dogs actually see, what about bees that can see ultraviolet?

I would have like to be able to see beyond the visual spectrum and wondered what it would look like if there were more colors.  I was sure that there were, if only I could see them.

Here are some ultraviolet flowers.

And you can test yourself here with the farnsworth-munsell color vision test.

ishihara

The image above is from the Ishihara color vision test.  You can take that online, too.

If you were color blind would you buy the glasses?  I would think seriously about it.

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What is tattoo Tuesday about?

August 13, 2013

Science tattoos – these are some of my favorites

star-navigation-440-tattoo(Above) Marc Morency, Quartermaster 1st class, USN, writes:
“My tattoo is the visual depiction of how to plot a line of position from a celestial body using the altitude intercept method, a method which has been time tested for more than a century. For me it serves as a reminder that while technology improves, the sea remains an unpredictable place and it is up to the older generation to teach the younger the old school ways of doing business.”

subatomic-doodling

(Above) Zach writes: “This is a half sleeve up my upper right arm based around an image taken by one of the CERN bubble chambers. It is based on this image. I first saw that image my freshman year of college. It had the sublime, simple beauty that only something made of math and science can have. It stuck with me for 8 more years before I actually decided to get it etched into me. Oddly enough, on Valentine’s Day. I guess it was my Valentine’s to physics and science. Oh, and when people ask who drew it, I always respond ‘God.’”

murchison-web

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(Above) “For some time I have wanted to get a tattoo to depict my appreciation for meteorites. On September 28, 1969 meteorites fell in Murchison, Australia. On September 28, 2004 our daughter Christina (a.k.a. Pinky) was born. As if wasn’t already a top-fiver for it’s amino acids, Murchison quickly moved up the ranks of my favorite meteorites and I had decided it would somehow be involved in the meteorite tattoo. With a little help from friends Steve Arnold (IMB) and Jason Phillips I obtained a small capsule of Murchison crumbs to pulverize and one day add to the ink. I ultimately decided on a carbon buckeyball, found in Murchison, unrolled and laid out flat. With Murchison fully represented in design and medium, I had the tattoo artist make one carbon atom bright pink in honor of Pinky. Although it’s only the size of the head of a pin, it means the world to her… and me.”

limulus-web

(Above) Loren, a biology graduate student, writes, “It’s a sketch of the horseshoe crab Limulus, such as a zoologist would make (and with the abdominal segments correctly identified). Perhaps the most magnificent living fossil of all, the horseshoe crab is the survivor of a lineage that extends back some 445 million years into the Ordovician. The four extant species are the only living representatives of the ancient arthropod class Merostomata and the only known chelicerate crabs.”

glyph600-web

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(Above) Alice writes, “This is an Aztec speech glyph that dates back before the conquest. I’m a linguist, and I believe this glyph embodies the impossible elegance of spoken language as well as the intrinsically artificial and cumbersome nature of written language.”

fitting-foundations

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(Above) Mark writes:
“This tattoo is the Zermelo-Fraenkel with Choice axioms of set theory. These nine axioms are the basis for ZFC set theory, which is the most commonly studied form of set theory and the most well known set of axioms as well. From these nine axioms, one can derive all of mathematics. These provide the foundation of mathematics, a field that you can likely tell that I love dearly.”

equationtatwide600-web

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(Above) Alison, a high-school physics teacher, writes:
“Like many scientists, the wonder of the natural laws of the Universe is where I draw my spiritual inspiration. I also study the religions of the world, and have been fascinated by the reoccurring theme of Creation, Preservation, and Destruction. The Mandelbrot Set (top) represents Creation, with the emergent properties of a simple equation that produces such a rich, complex, and unpredictable fractal pattern that goes on into Infinity. The equation for hydrostatic equilibrium (bottom left) represents Preservation, describing the precarious balance between crushing gravity and expanding pressure inside of stars (including our own) to keep them in a stable, sustainable size for billions of years. The equation describing entropy (bottom right) symbolizes Destruction, simply stating that this fundamental break down of systems and accumulation of disorder either increases or stays the same over time, but never decreases. All three circle around the Delta, the symbol for Change.”

does-the-golden-ratio

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(Above) Milad writes:
“I am a Mechanical Engineering undergrad at UC Berkeley and I got this tattoo about a month ago. It’s the golden ratio in the shape of a rectangle, with the ratio of the sides of the rectangle actually being the golden ratio! I have been obsessed with this number since I heard about it in high school, and it is the reason why I became so fascinated with mathematics. The golden ratio is known to be the closest mathematical explanation of beauty. It has been used a lot in architecture, art, and music around the world, and has some amazing mathematical and geometrical properties.”

circuit-ankle440

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(Above) “This tattoo is the schematic for the reference point of electricity. I just think of it as the source of electricity. Its really either the point at which you consider voltage to be 0, or in this pictures case, the physical connection to the earth (hence the lower calf). Electronics has been my passion for as long as I can remember, and I feel like this tattoo doesn’t do it justice. So I plan on getting another one to incorporate my passion for electronics and my trans-humanism beliefs.”

cajal440-web

(Above) Anonymous writes: “This is a ‘Ramon y Cajal’ drawing of a human motor cortex pyramidal cell. I am a student of neuroscience and greatly admire Ramon y Cajal not only for his scientific contributions but for the artistic and beautiful quality of his images. This image reminds me of the vast and incredible power of the neocortex, and of the amazing capability of the human body.”

From Accidental Mysteries

From Science Tattoos – Carl Zimmer

With thanks to HMS Defiant

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What do I find fascinating?

August 8, 2013

… and beautiful – This Wind Map, a lovely infographic of the wind wafting over the land, created by Martin Wattenberg and Fernanda Viegas.

Watch the wind movements in real time on their website; click here.

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Who am I reblogging?

July 28, 2013

“Don’t know if it’s good or bad that a Google search on “Big Bang Theory” lists the sitcom before the origin of the Universe.”–Neil deGrasse Tyson


Thanks to Mark Sackler at Millenium Conjecture for this reference to the Big Bang – the TV show and the theory.

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What am I remembering?

July 26, 2013

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What do I remember – or do I?

Does anybody besides me remember the Red Dwarf episode where Lister gave Rimmer some of his memories?

Scientists at MIT have recently created a similar effect in mice:

When the brain forms a memory, a population of brain cells is thought to undergo lasting physical or chemical changes, creating what’s called a “memory engram.” Memory has two phases: First, the memory is acquired by activating these brain cells, and later it is recalled by reactivating these cells. Scientists had hypothesized, but never proved, these memory cells existed.

Researcher Susumu Tonegawa, who worked with mice to create a false fear memory, explains that a similar process may exist in humans.  This phenomenon may help to explain why eyewitness testimony, particularly that experienced in an emotionally charged setting, may often be inaccurate.

Credit: Live Science

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What am I sappy cat blogging?

July 26, 2013

This week is a combination of sappy cat and geeky science blogging with this little video about Schrodinger’s Cat:

As a Sappy Cat Bonus, here is Cmdr. Sam Vimes modeling his new doggie hat:

Sam in his doggie hat

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What am I remembering today?

July 20, 2013

One small step for a man; one giant leap for mankind.  Happy anniversary, Apollo 11!

Thanks to Lights in the Dark for the nudge.

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What is tattoo Tuesday about?

June 11, 2013

blue-moon

I never get tired of looking at the moon and I found this “fun fact” on my iPad Moon app today:

How long would it take to get there?

Car ( @ 60 mph) – 5 months, 22 days, 15 hours, 56 minutes, 48 seconds

Plane (@ 600 mph) – 17 days, 11 hours, 23 minutes, 41 seconds

Sound (@ 761 mps) – 13 days, 18 hours, 39 minutes, 8 seconds

Saturn V (@ 17,432 mph) – 14 hours, 26 minutes, 20 seconds

Light (@ 186,282 mps) – 1.351 seconds

This is because the moon is at (or nearly at apogee) which makes it 251,673 miles away, or 1,350,546 Eiffel Towers away from Earth.  The moon’s phase is a waxing crescent.

Here are some moon tattoos.

moon leg

moon arm

moon neck

moon stamp

moon shoulder