The Art of Science
Amoebae use molecular mechanisms to move. Despite their tiny size, they’re giants compared to other types of cells!
You can help save polar bears: http://bit.ly/Z5ngAG Gert Polet and Geoff York of WWF demonstrate the processing of the samples collected from polar bear footprints. For the first time, scientists working in partnership with WWF have isolated polar bear DNA from a track left in the snow. This method could make polar bear monitoring much less expensive in the future. Follow the story: http://ift.tt/1uwHxIX RID 3868
Atala butterflies - Eumaeus atala on Flickr.
What were once street lights lights become a highway to another dimension.
Visitor Pictures: These may look other worldly, but these are the beautiful Leidy’s comb jellies in their own space. Jellies! So many jellies at the New England Aquarium.
Photo with 3 notes
(Earthobservatory.nasa.com) Sunrise Dam Goldmine
Roughly 55 kilometers (35 miles) south of Laverton, Western Australia, lies the Sunrise Dam Gold Mine. A gold deposit was discovered in the area in 1988, and by 1995, the mine was open for business. Started as an open pit mine, the operation expanded to include underground mining in 2003. The mine produces roughly 460,000 ounces of gold each year, according to AngloGold Ashanti, which operates the mine.
The Advanced Land Imager (ALI) on NASA’s Earth Observing-1 (EO-1) satellite captured this true-color image of the Sunrise Dam Gold Mine on December 4, 2009. The main pit’s terraced landscape appears in shades of gray in the left half of this image, and a mine waste facility appears on the right. In 2008, the central pit at Sunrise Dam reportedly reached a depth of 440 meters (1,445 feet). The straight line running diagonally through the lower right quadrant of the image is probably a landing strip; miners at Sunrise Dam frequently fly in and out of the remote area.
Away from the mining operation, the landscape appears in shades of brown. The physical environment around Sunrise Dam Gold Mine is flat and arid, comprised of sand and gypsum-rich dunes and saltpans. Acacia trees and shrubs well adapted to dry environments make up the vegetation in this warm, dry region.
Johanna Thorvaldsdóttir’s Icelandic goat farm (Háafell) is facing foreclosure in September, resulting in the entire goat flock being butchered - unless enough funds are raised to save it!
There are less than 820 Icelandic goats in the entire world - they are an endangered species. Almost half of them will be lost if this farm is not saved. I visited Háafell 2 years ago and every goat I draw is rooted in this place. Any little bit helps :)
When a magnetic field moves through a conductor a current called an Eddy current is induced in the conductor due to the magnetic field’s movement. The flow of electrons in the conductor creates an opposing magnetic field to the magnet which results in damping of the magnet and causes heating inside of the conductor similar to heat buildup inside of power cords. The loss of energy used to heat up the conductor is equal to the loss of kinetic energy by the magnet.
Episode 13: Unafraid of the Dark, Cosmos: A SpaceTime Odyssey
In a new study from the University of Pennsylvania and National Institute of Dental and Craniofacial Research, scientists used an innovative technique to study how cells move in a three-dimensional matrix, similar to the structure of certain tissues, such as the skin. They discovered an entirely new type of cell movement whereby the nucleus helps propel cells through the matrix like a piston in an engine, generating pressure that thrusts the cell’s plasma membrane forward.
"Our work elucidated a highly intriguing question: how cells move when they are in the complex and physiologically relevant environment of a 3-D extracellular matrix," said Hyun (Michel) Koo, a professor in the Department of Orthodontics at Penn’s School of Dental Medicine. "We discovered that the nucleus can act as a piston that physically compartmentalizes the cell cytoplasm and increases the hydrostatic pressure driving the cell motility within a 3-D matrix."
R. J. Petrie, H. Koo, K. M. Yamada. Generation of compartmentalized pressure by a nuclear piston governs cell motility in a 3D matrix. Science, 2014; 345 (6200): 1062 DOI: 10.1126/science.1256965
Penn and NIH researchers measured the internal pressure of individual fibroblast cells (in orange) moving through a three-dimensional matrix (in blue). They found that, in this environment, the cells’ nuclei operate like an engine’s piston to push the cell forward. Credit: University of Pennsylvania/NIDCR
WHAT KIND OF WIZARD FISH IS THIS
DUDE THATS A BABY KAIJU
ITS ACTUALLY EATING A LITTLE CREATURE THAT EMITS A CHEMICAL THAT MAKES WATER LIGHT UP WITH BIOLUMINESCENCE COS ITS SCARED OF BEING EATEN AND THEN THE FISH REALISES ITS VISIBLE AND SPITS IT OUT COS IT DOESNT WANT TO BE SEEN BY BIGGER PREDATORS. SO YES ESSENTIALY A WIZARD FISH
Get a load of this nerd
Getchellite on Stibnite with Orpiment rosettes - Twin Creeks Mine, Potosi District, Osgood Mts, Humboldt County, Nevada
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