Daily Archives: May 12, 2014

People Keep Spotting UFOs On Nasa's HD ISS Live Stream

Posted: May 12, 2014 at 8:45 am

Red Dwarf Star

Artist's depiction of the powerful flare that erupted from the red dwarf star EV Lacertae in 2008.

Unlike Earth, Venus lacks a magnetic field to deflect powerful solar outbursts -- as can be seen in this NASA-created image, a still from the video "Dynamic Earth: Exploring Earth's Climate Engine."

This vertigo-inducing, false-color image from NASA's Cassini mission highlights the storms at Saturn's north pole. The angry eye of a hurricane-like storm appears dark red while the fast-moving hexagonal jet stream framing it is a yellowish green. Low-lying clouds circling inside the hexagonal feature appear as muted orange color. A second, smaller vortex pops out in teal at the lower right of the image. The rings of Saturn appear in vivid blue at the top right.

This Hubble photo is of a small portion of a large star-birthing region in the Carina Nebula. Towers of cool hydrogen laced with dust rise from the wall of the nebula.

This computer simulation shows gas from a tidally shredded star falling into a black hole. Some of the gas also is being ejected at high speed into space.

This image of Asia and Australia at night is a composite assembled from data acquired by the Suomi NPP satellite in April and October 2012.

In this composite image, visible-light observations by NASAs Hubble Space Telescope are combined with infrared data from the ground-based Large Binocular Telescope in Arizona to assemble a dramatic view of the well-known Ring Nebula.

A delicate ribbon of gas floats eerily in our galaxy. A contrail from an alien spaceship? A jet from a black-hole? Actually this image, taken by NASA's Hubble Space Telescope, is a thin section of a supernova remnant caused by a stellar explosion that occurred more than 1,000 years ago.

NASA's Hubble Space Telescope caught Jupiter's moon Ganymede playing a game of "peek-a-boo." In this crisp image, Ganymede is shown just before it ducks behind the giant planet.

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Video: Boise State's 'Too Cool' Close Encounter With Int'l Space Station

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Some 250 miles above the Earth floats the International Space Station, but on May 6, the space station touched down, not physically, but digitally to Boise State University, where a group of students, educators and select guests eagerly awaited a close encounter.

Set up in Boise States Student Union Building, the Space Symposium created a live-link connection with two ISS astronauts, Steve Swanson and Rick Mastracchio.

A group of students known as the Space Broncos have been planning this event since late January 2014. Students in the Space Broncos come from different colleges and disciplines across campus. John Garretson, who joined at the beginning of the 2013 fall semester, is a senior public relations and communication major who discovered the opportunity to join Space Broncos through an e-mail from his adviser.

I had to take it right on the spot, it was too cool of an opportunity to pass up, Garretson said.

Leigh Ann Dufurrena, digital and social media communications specialist, took the position of co-professor of record for the Space Broncos and headed the Space Symposium event.

The culmination of all the projects we've been working on and all of the field trips and community outreach is this event, Dufurrena said.

The idea originally came from NASA, which approached the Space Broncos about the downlink, since then the students have been working with Swanson on the project. Swanson received the title of Professor of Practice in February 2014.

Its [Professor of Practice] a new program with community and business leaders to help in creative learning across all the colleges, Dufurrena said.

The opportunity to have what is, more or less, a Skype session with the ISS hasnt been offered to many other universities.

Theres been a couple of other universities that have done these, but its a really rare opportunity for any university to get to have a downlink with the space station and especially a two-way downlink like we are doing today, Dufurrena said.

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Colonization of Mars – Space Colonization Wiki

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Mars is the focus of much speculation and serious study about possible human colonization. Its surface conditions and the availability of water make it arguably the most hospitable of the planets in this solar system, other than Earth. The Moon has been proposed as the first location for human colonization, but unlike Earth's moon, Mars has the potential capacity to host human and other organic life. With an environment suitable for colonization, and potential for alteration into a stable ecosystem in the far future, Mars is considered by most scientists, including Stephen Hawking, as the ideal planet for future colonization and renewal of life. The colonization of Mars is a thought-provoking subject that captures the imagination of many people in science and science-fiction. The project of colonizing Mars provides a useful thought experiment for contemplating the future of humanity. Cities, bases and even biosphere bubbles can be established before terraforming Mars.

Some groups have speculated that Mars might one day be transformed so as to allow a wide variety of living things, including humans, to survive unaided on Mars' surface. Others make a variety of objections to doing so, some relating to technical feasibility, and others to desirability.

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Genetic Engineering By Anna from Germany – Video

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Genetic Engineering By Anna from Germany
Genetic Engineering By Anna from Germany.

By: Genn Kla

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Genetic approach helps design broadband metamaterial

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A specially formed material that can provide custom broadband absorption in the infrared can be identified and manufactured using "genetic algorithms," according to Penn State engineers, who say these metamaterials can shield objects from view by infrared sensors, protect instruments and be manufactured to cover a variety of wavelengths. "The metamaterial has a high absorption over broad bandwidth," said Jeremy A. Bossard, postdoctoral fellow in electrical engineering.

"Other screens have been developed for a narrow bandwidth, but this is the first that can cover a super-octave bandwidth in the infrared spectrum."

Having a broader bandwidth means that one material can protect against electromagnetic radiation over a wide range of wavelengths, making the material more useful. The researchers looked at silver, gold and palladium, but found that palladium provided better bandwidth coverage.

This new metamaterial is actually made of layers on a silicon substrate or base. The first layer is palladium, followed by a polyimide layer. On top of this plastic layer is a palladium screen layer. The screen has elaborate, complicated cutouts -- sub wavelength geometry -- that serve to block the various wavelengths. A polyimide layer caps the whole absorber.

"As long as the properly designed pattern in the screen is much smaller than the wavelength, the material can work effectively as an absorber," said Lan Lin, graduate student in electrical engineering. "It can also absorb 90 percent of the infrared radiation that comes in at up to a 55 degree angle to the screen."

To design the necessary screen for this metamaterial, the researchers used a genetic algorithm. They described the screen pattern by a series of zeros and ones -- a chromosome -- and let the algorithm randomly select patterns to create an initial population of candidate designs. The algorithm then tested the patterns and eliminated all but the best. The best patterns were then randomly tweaked for the second generation.

Again the algorithm discarded the worst and kept the best. After a number of generations the good patterns met and even exceeded the design goals. Along the way the best pattern from each generation was retained. They report their results in a recent issue of ACS Nano.

"We wouldn't be able to get an octave bandwidth coverage without the genetic algorithm," said Bossard. "In the past, researchers have tried to cover the bandwidth using multiple layers, but multiple layers were difficult to manufacture and register properly."

This evolved metamaterial can be easily manufactured because it is simply layers of metal or plastic that do not need complex alignment. The clear cap of polyimide serves to protect the screen, but also helps reduce any impedance mismatch that might occur when the wave moves from the air into the device.

"Genetic algorithms are used in electromagnetics, but we are at the forefront of using this method to design metamaterials," said Bossard.

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Atlas shows how genes affect our metabolism

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PUBLIC RELEASE DATE:

11-May-2014

Contact: Mark Thomson press.office@sanger.ac.uk 01-223-492-384 Wellcome Trust Sanger Institute

In the most comprehensive exploration of the association between genetic variation and human metabolism, researchers have provided unprecedented insights into how genetic variants influence complex disease and drug response through metabolic pathways.

The team has linked 145 genetic regions with more than 400 molecules involved in human metabolism in human blood. This atlas of genetic associations with metabolism provides many new opportunities to understand the molecular pathways underlying associations with common, complex diseases.

Metabolic molecules, known as metabolites, include a wide range of different molecules such as vitamins, lipids, carbohydrates and nucleotides. They make up parts of, or are the products of, all biological pathways. This new compendium of associations between genetic regions and metabolite levels provides a powerful tool to identify genes that could be used in drug and diagnostic tests for a wide range of metabolic disorders.

"The sheer wealth of biological information we have uncovered is extraordinary," says Dr Nicole Soranzo, senior author from the Wellcome Trust Sanger Institute. "It's exciting to think that researchers can now take this freely available information forward to better understand the molecular underpinnings of a vast range of metabolic associations."

The team measured the levels of a large number of metabolites, both those already known and many as yet uncharacterised, from many different metabolic pathways.

They found 90 new genetic associations, trebling the figure of known genetic associations with metabolites. In many of the cases where metabolites were known, the team were able to link the molecule to gene function. They mapped genes to their likely substrates or products and linked these to a number of conditions, including hypertension, cardiovascular disease and diabetes.

They further found that these genetic regions map preferentially to genes that are currently targeted in drug-development programmes. This provides new opportunities to assess genetic influences on drug response, and to assess the potential for existing drugs to treat a wide range of diseases.

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Estrazione di DNA dalla mucosa buccale (LS-OSA) – Video

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Estrazione di DNA dalla mucosa buccale (LS-OSA)

By: Liceo Scientifico - Opzione Scienze Applicate "G.Curcio" - Ispica (RG)

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DNA RS "American Dream" Mini#11 – Video

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DNA RS "American Dream" Mini#11
Whats going on guys! hope you enjoy this mini! i have been working on a few stuff! also sub to the new team that Iron Sweed and Auto born made! https://www.youtube.com/user/RiseofSparta.

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~What happens to your DNA during testing~ – Video

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~What happens to your DNA during testing~
This Aperture Science informatory music video was created for the sole express purpose of explaining to those few thousand whiny test-subjects that can #39;t keep their mouths shut, about what...

By: GLaDOS

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Science Minute 18 Scientists Create First Artificial Lifeforms With Expanding DNA – Video

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Science Minute 18 Scientists Create First Artificial Lifeforms With Expanding DNA
The Fortean Slip Science Minute American Scientists create the first artificial lifeforms with expanding DNA. The Fortean Slip Facebook Group Page https://www.facebook.com/groups/574332809255914/...

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Science Minute 18 Scientists Create First Artificial Lifeforms With Expanding DNA - Video

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