Physics!

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@makingsciencecool-blog
Physics!
The chemical formulas of various substances used to mimic plant-based aromas and flavors.
Tastes like science.
via jtotheizzoe
The physics of beauty requires math. The sunflower has spirals of 21, 34, 55, 89, and - in very large sunflowers - 144 seeds. Each number is the sum of the two preceding numbers. This pattern seems to be everywhere: in pine needles and mollusk shells, in parrot beaks and spiral galaxies. After the fourteenth number, every number divided by the next highest number, every number divided by the next highest number results in a sum that is the length-to-width ration of what we call the golden mean, the basis for the Egyptian pyramids and the Greek Parthenon, for much of our art and even our music. In our own spiral-shaped inner ear’s cochlea, musical notes vibrate at a simliar ratio.
The pattern of beauty repeat themselves, over and over.
Yet the physics of beauty is enhanced by a self, a unique, self-organizing system. Scientists now know that a single flower is more responsive, more individual, than they had ever dreamed. Plants react to the world. Plants have ways of seeing, touching, tasting, smelling, and hearing.
Rooted in the soil, a flower is always on the move. Sunflowers are famous for turning toward the sun, east in the morning, west in the afternoon. Light sensitive cells in the stem “see" sunlight, and the stern’s growth orients the flower. Certain cells in a plant see the red end of the spectrum. Other cells see blue and green. Plants even see wavelengths we cannot see, such as ultraviolet.
Most plants respond to touch. The Venus’s-flytrap snaps shut. Stroking the tendril of a climbing pea will cause it to coil. Brushed by the wind, a seedling will thicken and shorten its growth. Touching a planet in various ways, at various times, can cause it to close its leaf pores, delay flower production, increase metabolism, or produce more chlorophyll.
Plants are touchy-feely.
They taste the world around them. Sunflowers use their roots to “taste" the surrounding soil as they search for nutrients. The roots of a sunflower can reach down eight feet, nibbling, evaluating, growing toward the best sources of food. The leaves of some plants can taste a caterpillar’s saliva. They “sniff" the compounds sent out by nearby damaged plants. Research suggests that some by nearly damaged plants. Research suggests that some seeds taste or smell smoke, which triggers germination.
The right sound wave may also trigger germination. Sunflowers, like pea plants, seem to increase their growth when they hear sounds similar to but louder than the human speaking voice.
In other ways, flowers and pollinators find each other through sound. A tropical vine, pollinated by bats, uses a concave petal to reflect the bat’s sonar signal. The bat calls to the flower. The flower responds.
Sharman Apt Russell, Anatomy Of A Rose: Exploring the Secret Life of Flowers
An Algorithm Uses Galaxies to Draw Your Portrait
There’s a school of thought that maintains we humans are mostly just composites of stardust and space matter. But regardless of where you think we came from, it’s probably safe to assume that we didn’t look half as pretty as the celestial portraits Sergio Albiac creates. The Barcelona-based artist‘s most recent project, Stardust Portraits, takes user-submitted photos and transforms the subjects from basic Earthlings to otherworldly cosmic beings. via An Algorithm Uses Galaxies to Draw Your Portrait | Wired Design | Wired.com
via wildcat2030
Brilliant. From the article:
“I’m interested in the effect of chance on human experience,” he explains. “Generative art, which basically outsources artistic and aesthetic decisions, is a fascinating approach to express these kind of concepts. We humans, are believed to be novel combinations of cosmic stardust. It could be argued that the whole universe is the biggest running generative art installation today."
Albiac was curious to explore the heady idea of nucleosynthesis, which is the formation of new atomic nuclei from pre-existing cosmic matter. Albiac’s generative project is slightly smaller-scale. So far the artist has created around 1,250 portraits, but eventually, he’d like to produce upwards of 100,000. Albiac’s ultimate goal is for Stardust to be the biggest exhibition of visual art in the universe. “Ideally, this project would run forever, surviving me as creator,” he says. “But on practical terms, I will end it when I won’t be able to maintain it.” Want to help him reach his goal? Check out Albiac’s site for information on how to submit your own photo for a cosmic treatment.
Republican Tries to Bend Science to Anti-Science Agenda
The new chair of the House of Representatives science committee has drafted a bill that, in effect, would replace peer review at the National Science Foundation (NSF) with a set of funding criteria chosen by Congress. For good measure, it would also set in motion a process to determine whether the same criteria should be adopted by every other federal science agency.
Rep. Lamar Smith - who supported SOPA and blamed gun violence on video games- is continuing the war on science by attempting to remove scientific peer review guidelines and replace it with one determined by Congress…politicizing science. Is this an effort to de-fund science and fund their own corporate propaganda?
Cenk Uygur and Ana Kasparian break it down.
via TYT (The Young Turks)
- THIS IS WHY SCIENCE LITERACY IS IMPORTANT, FOLKS.
This is a picture of a Goldschmidt toad that has a mutation that caused its eyes to grow inward into its mouth. Therefore,it needs to open its mouth to see. It was found in a garden in Canada.
what in the fucking fuck nononono
Here’s What Wi-Fi Would Look Like If We Could See It
Ekso™ is a bionic suit, or exoskeleton, which enables individuals with lower extremity paralysis to stand up and walk over ground with a weight bearing, four point reciprocal gait. Walking is achieved by the user’s forward lateral weight shift to initiate a step. Battery-powered motors drive the legs and replace neuromuscular function.
Dolphins Have Names
Dolphins are smart; they can follow recipes, do math, and help others in distress. New research suggests that they may even have, and respond to, names! In a study, scientists played the sound of a dolphin's signature whistle - its name. The dolphin responded back with the same whistle as if to say, "Yeah, I'm here, wanna go catch some fish?"
Source
Drugs under the microscope. (literally)
ECHOLOGY
Artist Mathilde Roussel - “Resonances between human body and vegetal are suggested by filling with plant elements, scientifical jars labelled with human body parts. The living ingredients inside the jars change and metamorphose though time. Dew, milk, pollen, sap, branches, grass, bark, etched glass jars. Exhibited at Anatomia Botanica, Cheekwood Botanical Garden & Museum of Art, Nashville, US."
[previously "lifes of Grass”]
03 July 2013
Porcupainless
Porcupines are not known for their ability to save people from pain: an unfortunate encounter with their fearsome array of around 30,000 spines is usually followed by an uncomfortable trip to the hospital. Once they have punctured the flesh, the spines are extremely difficult to remove, thanks to a series of backwards-facing snares (indicated by arrows in the image) that act in a similar way to barbs on a fish hook. However, what was not understood until now is that these same barbs also dramatically reduce the pressure needed to penetrate skin in the first place – by over 50 per cent compared to smooth spines. Imitating this design could help to develop less painful hypodermic needles and other medical instruments that need to be inserted through the skin. So in the future, the spiky porcupine could acquire a reputation for help rather than harm.
Written by Jan Piotrowski
—
Jeffrey M. Karp
Harvard Medical School, USA
Published in PNAS
08 July 2013
Gotta Keep Moving
Each coloured line here represents the path taken by a different bundle of DNA (known as a chromosome) during meiosis – the unique form of cell division that spawns sperm and egg cells. Each chromosome is dragged like a fish on a line around the inside edge of the cell nucleus by protein motors. On the left is the path taken by DNA in a healthy cell, the right in a cell whose motors have been disabled. During meiosis, chromosomes must match up with their complementary twin, so like singletons at a speed dating session they dart around in a frantic search. Without free movement the chromosomes in the cell on the right never got the chance to encounter their partner. Such mismatching can lead to major developmental problems, so revealing how chromosomes find each other is a high priority for scientists.
Written by Anthony Lewis
—
Enrique Martinez-Perez
MRC Clinical Sciences Centre, UK
Originally published under a Creative Commons Attribution license
Published in PLoS genetics 9(5): e1003497
MRI scan of a human subject from the cranium to the feet.
Beautiful Pt.2
Cross section of a rat seminiferous tubule imaged with a Phillips 501 scanning electron micrograph (~500X). The spermatogonia and spermatocytes are colored blue and lavender, respectively, while the mature sperm cells are yellow. Color was added with the paintbrush in “Color” mode on Photoshop; the “plastic wrap” filter was then applied to add a glistening appearance.
Roger Wagner, University of Delaware
NASA Releases Images of Earth by Distant Spacecraft [Click images to enlarge & read descriptions - Image Credit: NASA/JPL-Caltech/Space Science Institute.]
Color and black-and-white images of Earth taken by two NASA interplanetary spacecraft on July 19 show our planet and its moon as bright beacons from millions of miles away in space. NASA’s Cassini spacecraft captured the color images of Earth and the moon from its perch in the Saturn system nearly 900 million miles (1.5 billion kilometers) away. MESSENGER, the first probe to orbit Mercury, took a black-and-white image from a distance of 61 million miles (98 million kilometers) as part of a campaign to search for natural satellites of the planet. In the Cassini images Earth and the moon appear as mere dots — Earth a pale blue and the moon a stark white, visible between Saturn’s rings. It was the first time Cassini’s highest-resolution camera captured Earth and its moon as two distinct objects. It also marked the first time people on Earth had advance notice their planet’s portrait was being taken from interplanetary distances. NASA invited the public to celebrate by finding Saturn in their part of the sky, waving at the ringed planet and sharing pictures over the Internet. More than 20,000 people around the world participated. "We can’t see individual continents or people in this portrait of Earth, but this pale blue dot is a succinct summary of who we were on July 19," said Linda Spilker, Cassini project scientist, at NASA’s Jet Propulsion Laboratory in Pasadena, Calif. “Cassini’s picture reminds us how tiny our home planet is in the vastness of space, and also testifies to the ingenuity of the citizens of this tiny planet to send a robotic spacecraft so far away from home to study Saturn and take a look-back photo of Earth." Pictures of Earth from the outer solar system are rare because from that distance, Earth appears very close to our sun. A camera’s sensitive detectors can be damaged by looking directly at the sun, just as a human being can damage his or her retina by doing the same. Cassini was able to take this image because the sun had temporarily moved behind Saturn from the spacecraft’s point of view and most of the light was blocked.
A wide-angle image of Earth will become part of a multi-image picture, or mosaic, of Saturn’s rings, which scientists are assembling. This image is not expected to be available for several weeks because of the time-consuming challenges involved in blending images taken in changing geometry and at vastly different light levels, with faint and extraordinarily bright targets side by side.
Read more here.
Electromagnetic Spectrum