Recently in Science Category

Galaxy Zoo

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If you find yourself with too much free time on your hands, instead of spending it with your imaginary Facebook friends why don't you head over to Galaxy Zoo and participate in some actual scientific research?

2000-year-old 'computer' recreated

Of course, if this device is a computer any mechanical watch or clock is, too. Calling it an astronomical clock would be more accurate. But regardless, it's quite impressive to see the extent of ancient Greek technology.

The difference a camera and telescope make

OmegaCentauri1.jpg
Pictured above is Omega Centauri, a globular star cluster that orbits the Milky Way galaxy and that has millions of stars in a sphere 150 light years across (150 light years is a bit more than 34 times the distance of the Sun from the nearest star). On the left-hand side is an image taken by an amateur astronomer (source), and it's quite typical of what you would have seen with professional telescopes many years ago. On the right-hand side is what you get if you use ESO's "Wide Field Imager (WFI), mounted on the 2.2-metre diameter Max-Planck/ESO telescope, located at ESO's La Silla observatory, high up in the arid mountains of the southern Atacama Desert in Chile." (source; note that I created the little composite above by eye using Photoshop, aligning some of the bright stars; this required rotating one of the images) That's not even such a big telescope actually.

Spot the planet...

Exoplanet.jpg
... orbiting around the star "Fomalhaut" (not show in center), about 25 light years away from us. (source)

Two nifty visualizations of global data

I like how this simulation/visualization of air traffic over 24 hours (found over at kottke.org) looks like abstract art. And there also is

'Online Literacy Is a Lesser Kind'

"When Jakob Nielsen, a Web researcher, tested 232 people for how they read pages on screens, a curious disposition emerged. [...] Nielsen has gauged user habits and screen experiences for years, charting people's online navigations and aims, using eye-tracking tools to map how vision moves and rests. In this study, he found that people took in hundreds of pages 'in a pattern that's very different from what you learned in school.' It looks like a capital letter F. At the top, users read all the way across, but as they proceed their descent quickens and horizontal sight contracts, with a slowdown around the middle of the page. Near the bottom, eyes move almost vertically, the lower-right corner of the page largely ignored. It happens quickly, too. 'F for fast,' Nielsen wrote in a column. 'That's how users read your precious content.'" - story

What Makes People Vote Republican?

"...the second rule of moral psychology is that morality is not just about how we treat each other (as most liberals think); it is also about binding groups together, supporting essential institutions, and living in a sanctified and noble way. When Republicans say that Democrats 'just don't get it,' this is the 'it' to which they refer." - Jonathan Haidt (italics as in original text)

Apollo Space Missions Contact Sheets

While looking for something entirely different today I found an archive with unedited scans of the Hasselblad cameras used aboard the Apollo 7 till 17 mission: Go here, and then click on "Full Hasselblad Magazines." That way, you can look at the contact sheets of the Apollo space missions.

LHC Rap (no, really)

You'd imagine with the LHC going operational very soon people at CERN would be kind of busy, but it appears that even at such a time, there are still some people with entirely too much time on their hands (hopefully this video will make the oohing and aahing about all that technology stop - if a rap by scientists won't I'm afraid nothing else will).

Vegetarian Sausages and Subjectivity

Some juicy new research I just couldn't walk past (even though I dislike all kinds of sausages, meat or no meat): "According to the researchers, how we feel about a sausage, regardless of whether it's soy-based or beef, says more about our personal values than about what the sausage actually tastes like. In fact, most people can't even tell the difference between an ersatz vegan sausage and the real thing." (source)

Images from Mars

I admit that as an astronomer I'm a bit jaded about astronomy photos, and I'm particularly uninterested in new Mars images (and even more uninterested in the almost comical fuss NASA creates every time yet another little robot going to Mars sends back photos that look like... well... all the other Mars robot photos - give me a break already!). But these images here are really quite spectacular.

Will our planet be destroyed by the LHC?

The short answer is "Of course not." A somewhat longer and more detailed answer is provided by an expert from the reality-based science community, Brian Cox.

'The edge of understanding'

Chances are you have heard of CERN's LHC experiment, or maybe not. It probably is the most ambitious science experiment ever done ("One of the LHC's detectors - Atlas - weighs as much as 100 Boeing 747s. Looking like a cross between some improbably big communications satellite and the largest electric dynamo you can imagine, Atlas is the work of 1,900 scientists drawn from 164 universities in 35 countries." [source]), and if you want to find out more about its goals etc. this is the place to go. Oh, and it's not going to blow up the planet.

PS: It does say quite a bit about the state of affairs of the US media to see something like this, doesn't it? No serious, self respecting scientist expects the collider to create a doomsday; just like no serious, self respecting scientist denies that global warming is a reality and a gigantic challenge for humanity.

Fastest-ever flashgun captures image of light wave

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"Researchers have found a way to generate the shortest-ever flash of light – 80 attoseconds (billionths of a billionth of a second) long. [...] The light pulses are produced by firing longer, but still very short laser pulses into a cloud of neon gas. The laser gives a kick of energy to the neon atoms, which then release this energy in the form of brief pulses of extreme ultraviolet light." (story)

"When you look at a painting, what do you think you process first - the painting's content or its style? According to Dorothee Augustin and colleagues it is the content of a painting that we register first, with dazzling speed - within 10 ms (less than a hundredth of a second) - while processing of a painting's style comes later, from 50ms onwards. [...] The research also shows that even people without any expertise in art are impacted early on by the artistic style of a painting. 'If we consider style the characteristic of art,' the researchers concluded, 'this characteristic needs some time to unfold - but still, it unfolds quicker than you may think.'" (story)

Links

1000 words blog
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5b4
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bint photo books
bldblog
bloggy
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bps research digest blog
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buffet
the cartoonist
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c-monster.net
colbert nation
consumptive.org
nina corvallo
coudal partners
mrs. deane
digressions
amy elkins
expiration notice
exposure
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the exposure project
flak photo
elizabeth fleming
fotofeinkost
fraction magazine
from this moment
fugitive vision
gazpachot
gmtPlus9
shane godfrey
ground glass (cara phillips)
group show
the guardian - art section
hebig.org
heading east
andrew hetherington
horses think (ofer wolberger)
hippolyte bayard
i heart photograph
japan exposures
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journal of a photographer
hee jin kang
kottke.org
liz kuball
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lens culture
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love oliver
magnum blog
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modern art obsession
heather morton's art buyer blog
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notes on politics, theory and photography
colin pantall
pdnedu
photo book guide
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placeboKatz
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40 watts (shawn records)
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seesaw magazine
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state of the art
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subjectify
swen's weblog
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thingsmagazine.net
too much chocolate
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brian ulrich
uncommons
verve photo
vvork
wan.der.lust.ag.ra.phy
wassenaar
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we can shoot, too
we can't paint
shen wei
white wall collective
edward winkleman
women in photography
wood s lot
year in pictures (james danziger)
zoum zoum

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