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Submission + - A Neural Network Simulation of a 1mm Nematode is Taught to Balance a Pole

ClockEndGooner writes: Researchers at the Technische Universität Wein have created a simulation of a simple worm's neural network, and have been able to replicate its natural behavior to completely mimic the worm's natural reflexive behavior. According to the article, using a simple neural network of 300 neurons, the simulation of "the worm can find its way, eat bacteria and react to certain external stimuli. It can, for example, react to a touch on its body. A reflexive response is triggered and the worm squirms away. This behaviour is determined by the worm's nerve cells and the strength of the connections between them. When this simple reflex network is recreated on a computer, the simulated worm reacts in exactly the same way to a virtual stimulation – not because anybody programmed it to do so, but because this kind of behaviour is hard-wired in its neural network." Using the same neural network without adding any additional nerve cells, Mathias Lechner, Radu Grosu, and Ramin Hasani were able to have the nematode simulation learn to balance a pole "just by tuning the strength of the synaptic connections. This basic idea (tuning the connections between nerve cells) is also the characteristic feature of any natural learning process."

Comment The neo-reactionaries are deluded and myopic (Score 1) 730

For most of human history people lived under the social systems these people are advocating. Enlightenment civilization, of which democracy and free markets are only two components, is less than 400 years old, and in that time we've seen a flowering of technological and cultural growth that dwarfs everything else that happened in the previous millennia of human civilization. Coincidence? Perhaps. But I think it more likely the neo-reactionaries are analogous to the cranks who write papers claiming to disprove quantum physics and then post them to the world using tools which depend upon those physics to function.

Science fiction author and Enlightenment champion David Brin has a blog post exploring some disadvantages of neo-feudalism. In that article he links to the Anti-reactionary FAQ with detailed criticisms of their arguments and goals.

Space

Submission + - Pioneer Anomaly Solved (planetary.org)

gstrickler writes: After years of work recovering and analyzing old mission data and vehicle schematics, a just published analysis provides strong evidence for anisotropic thermal radiation being the source of the slowing of the Pioneer 10 and 11 spacecraft. The theory isn't new, but the recovered data and new analysis provide solid evidence that at least 80% of the deceleration is accounted for by anisotropic thermal radiation. Members of The Planetary Society were instrumental in recovering the data and helping fund the analysis.

The lesson is, in space, it matters what direction your heat radiating surfaces point.

Comment Bill Gates vs other media figures. (Score 1) 832

I don't know how the algebra of media exposition to human awareness works, but in my personal estimation, in regards to aspects of reality and science, Bill Gates is at least 10 times the worth of Jenny McCarthy; let's hope that magnification propagates to all parents and re-assures them that vaccinating their children is the right thing to do.

For so many reasons.
Earth

Endangered Species Condoms 61

The Center for Biological Diversity wants to help put a polar bear in your pants with their endangered species condom campaign. They hope that giving away 100,000 free Endangered Species Condoms across the country will highlight how unsustainable human population growth is driving species to extinction, and instill the sexual prowess of the coquí guajón rock frog, nature's most passionate lover, in the condom users. From the article: "To help people understand the impact of overpopulation on other species, and to give them a chance to take action in their own lives, the Center is distributing free packets of Endangered Species Condoms depicting six separate species: the polar bear, snail darter, spotted owl, American burying beetle, jaguar, and coquí guajón rock frog."
Image

Measuring the Speed of Light With Valentine's Day Chocolate 126

Cytotoxic writes "What to do with all of those leftover Valentine's Day chocolates? — a common problem for the Slashdot crowd. The folks over at Wired magazine have an answer for you in a nice article showing how to measure the speed of light with a microwave and some chocolate. A simple yet surprisingly accurate method that can be used to introduce the scientific method to children and others in need of a scientific education."

Comment Re:This is not one of those cases (Score 5, Interesting) 233

Okay, I admit, I RTFA, and the crater in question has been dated as millions of years old, long before *anyone* claims humans capable of cultural transmission visited Australia.

According to the article, the author himself thinks that the aboriginal Australians were sophisticated enough to recognize impact craters on the landscape, and what might have caused them, and concoct legends about falling objects to explain them.

With all due respect to the parent post, the Indigenous Australians may have great knowledge that has been dismissed by their Western colonizers, but this is not evidence of such.

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