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This little guy is called a pika, and he’s loves bringing...

Sun, 19 May 2013 20:04:18 -0430

This little guy is called a pika, and he’s loves bringing people flowers.

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allcreatures: Photograph: Jeff J Mitchell/Getty Images (via 24...

Sun, 19 May 2013 16:23:56 -0430

allcreatures:

Photograph: Jeff J Mitchell/Getty Images (via 24 hours in pictures | News | guardian.co.uk)

dogblackdog: michaelrecycles: sexxcrazed. no sabe agarrar...

Sun, 19 May 2013 16:22:21 -0430

dogblackdog:

michaelrecycles:

sexxcrazed.

no sabe agarrar bien la cámara… uhmmm

earth-song: Bison Mother And Calf by ~Nate-Zeman

Tue, 14 May 2013 23:23:35 -0430

earth-song:

Bison Mother And Calf by ~Nate-Zeman

sagansense: X-ray vision tracks lightning bursts Blink and...

Tue, 14 May 2013 23:18:14 -0430

sagansense:

X-ray vision tracks lightning bursts

Blink and you’ve missed it. Researchers in the US have captured the world’s first X-ray images of lightning, by creating a special camera that can capture radiation at 10 million frames per second. They presented their new findings at the American Geophysical Union (AGU) Fall Meeting in San Francisco and they say that this new view of lightning could help to solve some of the mysteries of this spectacular natural phenomenon.

The research was carried out at the International Center for Lightning Research and Testing, located in Florida. It is one of the few sites in world where lightning is initiated and studied under controlled conditions. By firing rockets with trailing wires into thunder clouds, scientists are able to generate electric fields that are large enough to trigger bolts of lightning, which then propagate back down towards the rocket launch tower.

Joseph Dwyer and colleagues at the Florida Institute of Technology became interested in the fact that lightning emits X-rays as it propagates through the air, a phenomenon that was only noted in the past decade. But given that X-ray sources in lightning travel through the Earth’s atmosphere at velocities approaching the speed of light, it is difficult to catch them on camera before they disappear. In addition, they cannot be imaged with standard mirrors and lenses because huge amounts of material are required to prevent X-rays and gamma rays from entering through the sides of a camera.

Dwyer’s team has created a customized camera that has 30 detectors made from a combination of sodium iodide and photomultiplier tubes, each measuring 3 × 3 inch. The device, which is approximately the size of a standard refrigerator, is also equipped with a 3 inch pinhole aperture, and can record X-rays at 10 million frames per second. “This is actually a very old technique for making images, like that seen in a camera obscura,” Dwyer says.

During July and August this year, Dwyer’s team studied four rocket-triggered lightning flashes at the Florida test site. Each flash lasted for approximately two seconds and the resulting sequences of images revealed that X-rays emerged primarily from the vicinity of the lightning tip as it propagated towards the Earth. As the lightning crashed into the control tower it also triggered large bursts of gamma radiation, which were also captured by the camera.

“For the first time we’re catching a glimpse of lightning in the X-ray emission,” says Dwyer. “We’re seeing lightning as Superman would see it with his X-ray vision”.

Credit: James Dacey/physicsworld.com

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adhalgot: iheartmyart: Echolilia: A Father’s Photographic...

Sun, 12 May 2013 22:43:25 -0430

adhalgot:

iheartmyart:

Echolilia: A Father’s Photographic Conversation with His Autistic Son. Timothy Archibald uses his camera to find an emotional bridge to his son Photographs and text from the book Echolilia: Sometimes I Wonder

My eldest son was born in 2001. He was always a kid who went to the beat of his own drummer. When he was 5, we began making photographs collaboratively as a way to find some common ground and attempt to understand each other. Soon after we began the project, Elijah was diagnosed on the autistic spectrum. Though the diagnosis gave me the words and history to understand my son better, it didn’t take away the mystery and the need to try to find an emotional bridge to him.”Echolilia” is an alternate spelling of a more common term, “echolalia,” used in the autistic community to refer to the habit of verbal repetition and copying that is commonly found in autistic kids’ behavior. I liked the idea of it: photography is a form of copying. Kids are a form of repetition. And looking at my kid with photography allowed me to see myself a new

(via architectureland)

Hermoso…

neonexperience: ooooh

Sun, 12 May 2013 22:43:02 -0430

neonexperience:

ooooh

suicide-ink: Casanova

Sat, 27 Apr 2013 12:37:39 -0430

suicide-ink:

Casanova

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