Installa questo tema
The end?

The end?

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


The Guardian has a multi-part, video heavy media set on climate refugees in America. I’d argue that the title “first” is a misnomer and would point to the coastal communities in Texas, New Orleans, and the Carolinas who’ve been retreating from the coasts for several years.  But, the point is made - that sea-level rise and coastal erosion is much more aggressive than at anytime in history. Thus, tens of thousands of people are at immediate risk, especially the poor.
The above is one minute.

The people of Newtok, on the west coast of Alaska and about 400 miles south of the Bering Strait that separates the state from Russia, are living a slow-motion disaster that will end, very possibly within the next five years, with the entire village being washed away.
The Ninglick River coils around Newtok on three sides before emptying into the Bering Sea. It has steadily been eating away at the land, carrying off 100ft or more some years, in a process moving at unusual speed because of climate change. Eventually all of the villagers will have to leave, becoming America’s first climate change refugees.


Non sono così scafato per dire che tutto ciò rientra nei normali cicli geologici o se sia colpa esclusivamente della merda che stiamo riversando o se sia la mostruosa combinazione fra questi più altri elementi. Resta il fatto che tutto ciò sta accedendo e prima o poi tutti ne faremo i conti.

The Guardian has a multi-part, video heavy media set on climate refugees in America. I’d argue that the title “first” is a misnomer and would point to the coastal communities in Texas, New Orleans, and the Carolinas who’ve been retreating from the coasts for several years.  But, the point is made - that sea-level rise and coastal erosion is much more aggressive than at anytime in history. Thus, tens of thousands of people are at immediate risk, especially the poor.

The above is one minute.

The people of Newtok, on the west coast of Alaska and about 400 miles south of the Bering Strait that separates the state from Russia, are living a slow-motion disaster that will end, very possibly within the next five years, with the entire village being washed away.

The Ninglick River coils around Newtok on three sides before emptying into the Bering Sea. It has steadily been eating away at the land, carrying off 100ft or more some years, in a process moving at unusual speed because of climate change. Eventually all of the villagers will have to leave, becoming America’s first climate change refugees.

Non sono così scafato per dire che tutto ciò rientra nei normali cicli geologici o se sia colpa esclusivamente della merda che stiamo riversando o se sia la mostruosa combinazione fra questi più altri elementi. Resta il fatto che tutto ciò sta accedendo e prima o poi tutti ne faremo i conti.

 

sassygaybabies:

pizzaforpresident:

sierrakushterbeck:

THIS COMMERICAL TAKES LIKE THE BIGGEST TURN FOR THE WORST EVER AND I DON’[T LIKE IT

OH MY GOD

YOU GUYS THIS IS AN ACTUAL COMMERCIAL 

image

image

WHAT

Welp, i disagree. I liked the video. I think it made my day oh my god.

I am fairly certain this is the best thing ever.

AUSTRALIAN COMMERCIALS

Ahahah this is based in Perth, such a great ad

Holy fucking shit.

mothgirlwings:

Daisy Duck uses rope tricks to catch Donald Duck in “Donald’s Diary” (1954) - Walt Disney

L’ultima mi ha richiamato qualcosa…

iceageiscoming:

(via Ora gli dico | Makkox)

oltre il grafene.

iceageiscoming:

(via Ora gli dico | Makkox)

oltre il grafene.

[…]

Per troppi anni il potere sono stato io. La mostruosa, inconfessabile contraddizione: perpetuare il male per garantire il bene. La contraddizione mostruosa che fa di me un uomo cinico e indecifrabile anche per te; gli occhi tuoi pieni, puliti e incantati non sanno la responsabilità diretta o indiretta per tutte le stragi avvenute in Italia dal 1969 al 1984 e che hanno avuto per la precisione 208 morti e 817 feriti. A tutti i familiari delle vittime io dico si, confesso è stato anche per mia colpa , mia colpa, mia grandissima colpa. Questo dico anche se non serve. Lo stragismo per destabilizzare il paese, provocare il terrore, isolare le parti politiche estreme, per rafforzare i partiti di centro come la DC. La hanno definita strategia della tensione: sarebbe più corretto dire strategia della sopravvivenza.

[…]

Un pazzo

ze-violet:

solodascavare:

“E’ il gesto di un disperato. I politici non lo sanno che vuol dire prendere 800 euro al mese, entrare in un negozio e non poter comprare nulla a tuo figlio… Ecco cosa succede se non lo sanno”.
Parola di carabiniere. Accento napoletano, occhi quasi in lacrime, è in servizio con la pattuglia intorno ai Palazzi del potere, dove poco prima due suoi colleghi sono stati feriti a colpi di pistola. Si sfoga davanti ai giornalisti appena arrivati qui dal Quirinale, dove il governo Letta ha appena giurato. Si sfoga, di fianco un suo collega annuisce: “E’ una guerra tra poveri…”.

esattamente.

[…]io vengo a restituirti un po’ del tuo terrore,

del tuo disordine,

del tuo rumore.[…]

jtotheizzoe:

A noble gas, indeed.
This becomes rather silly if you imagine it read in a helium voice.
(source?)

jtotheizzoe:

A noble gas, indeed.

This becomes rather silly if you imagine it read in a helium voice.

(source?)

emmanuelnegro:

ze-violet:

mangorosa:

Non lo rimpiangeremo, er pecora.

Per. Niente.

Danzerò sul suo fottuto cadavere pieno di merda.

Bene, la maledizione di (manco lo nomino) pare che cominci a dare i suoi putrescenti frutti…
Appro, come sta la polverini?

emmanuelnegro:

ze-violet:

mangorosa:

Non lo rimpiangeremo, er pecora.

Per. Niente.

Danzerò sul suo fottuto cadavere pieno di merda.

Bene, la maledizione di (manco lo nomino) pare che cominci a dare i suoi putrescenti frutti…

Appro, come sta la polverini?