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Horizon

andrehansson.com

- the occasional blog of André Hansson

Need a time machine?

SciencePosted by André Hansson Mon, January 23, 2012 08:45:09
I guess everyone feels they need a time machine every now and then. Go back and undo a goof, or maybe change something major to take another route in life? [insert your favorite deity] knows I could use one sometimes! If you want one, a DeLorean and some plutonuim apparently wont cut it. Dr. Michio Kaku explains the basics of string theory. A must know for anyone attempting to go back and prevent JFK from getting shot. I was hoping for something more solid, like blueprints or something, but I'll keep searching and keep you posted. Link below.

http://bigthink.com/ideas/41614




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Science predicting hit songs?

SciencePosted by André Hansson Sat, December 17, 2011 10:42:08

http://www.physorg.com/news/2011-12-science-song.html

A research team at Bristol Univeristy has engineered a complex learning algorithm that can predict the hit factor of a popsong with a 60% accuracy using the decades of the UK pop chart as a base. The reseach is available at http://scoreahit.com/

Interestingly, hits were most difficult to predict around 1980 +- half a decade. suggesting that this was a period of exceptional creativity in pop music history. Yeaahh! That's my fav period. That just has to say something about me, although I'm not sure what!


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Creativity linked to rule bending

SciencePosted by André Hansson Tue, December 06, 2011 10:16:02
http://www.scientificamerican.com/podcast/episode.cfm?id=creativity-linked-to-rule-bending-11-12-05


Creative people are more likely to cheat and bend rules, according to this short article, quoting a new study in the Journal of Personality and Social Psychology. Creative people use their abilities to think up new ways to avoid work, a theme in my satirical novel The Jacket Trick, which I am currently writing. Why do they do this? Because they can.



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Utilitarian Ethics tested in experiment

SciencePosted by André Hansson Sun, December 04, 2011 10:40:20
http://www.scientificamerican.com/podcast/episode.cfm?id=killing-one-person-to-save-five-11-12-03


Apparently, Spock's old utilitarian words of wisdom "the needs of the many outweigh the needs of the few" seems fairly intuitive for human beings. 90% chose to kill one person in order to save five by rerouting a runaway train to another track. On the original track the five people were spared, while on the alternate track a lone hiker got to meet his maker. Live long and prosper, but make sure you're on the right track.

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One quarter impulse power...

SciencePosted by André Hansson Wed, November 30, 2011 11:11:28
http://www.scientificamerican.com/article.cfm?id=deep-space-breaking-the-barrier


The complexities of real space travel. I don't think there's mass allowance for a diner or a holodeck on this one. The following idea for a deep space launch shows how much effort is involved in achieving escape velocity from the Earth's gravitational pull.

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Photo reality checker?

SciencePosted by André Hansson Tue, November 29, 2011 11:07:02
http://www.physorg.com/news/2011-11-reality-eye-photoshop.html

Everybody knows models in magazines are photo-shopped. It's nothing new. But since these perfect, skinny, blemish-free beauties have been linked to eating disorders and general anxiety over your body's appearance in women, girls and men everywhere, this issue has entered the realm of politics.

So what's the answer? Bans on photo-shopping, forcing magazines to add disclaimers, parental warnings and whatnot? Such tools seem to have little or no effect except generating costs and red tape.

In the article above Professor Hany Farid and Eric Kee, Ph. D student at Dartmouth Collage proposes a metric that will trace alterations made and provide an estimate of what the image looked like before photo-shopping. A rating system based on this metric might create an incentive for magazines to cut back on some of the worst retouching, they say.

How about taking it further? A piece of software for your phone that will allow you to photograph the image with your camera and then reverse engineer the photo and produce an actual image before the alterations were made? If everybody walked around with such a device there would be no need to even consider regulations.

Photography used to be an ironclad depiction of reality. Indisputable evidence that something had happend. If you were caught doing nasty things on a photo you were toast. Seeing was believing. Not so anymore. But such a device could restore some of that status.




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Första jordliknande exoplaneten funnen?

VetenskapPosted by André Hansson Thu, September 30, 2010 16:18:12
Gliese581C är den första planeten som upptäckts som ligger innanför "Goldilocks"-zonen. Inte för långt och inte för nära sin stjärna och den kan därmed ha rätt temperatur för att det ska finnas flytande vatten. Den är 50% större jorden och 5 gånger mer massiv. Den ligger 15 gånger närmare sin stjärna än vad jorden ligger intill solen men eftersom Gliese 581 är en röd dvärg och därmed svalare än vår sol ligger den ändå i zonen.

Den ligger 20.5 ljusår från Sol och är därmed också den närmaste exoplaneten som funnits och ett het föremål för framtida studier. Den starkaste kandidaten hittills för liv utanför Jorden.

Läs vidare:

http://www.space.com/scienceastronomy/070424_hab_exoplanet.html


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Skalamodell av universum

VetenskapPosted by André Hansson Mon, May 24, 2010 09:06:59
Kolla in den här mycket fascinerande länken:

http://primaxstudio.com/stuff/scale_of_universe.swf

Det är en zoombar skalamodell av hela universum från den minsta strängen till universum själv! Fantastiskt!


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