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Heikki Arponen
8,444 followers -
Math PhD Python guy
Math PhD Python guy

8,444 followers
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"My misgivings of quantum mechanics are pretty much identical to the ones which Weinberg expresses in his lecture. The axioms of quantum mechanics, whatever interpretation you chose, are unsatisfactory for a reductionist. They should not mention the process of measurement, because the fundamental theory should tell you what a measurement is."

Well said!
Steven Weinberg doesn’t like Quantum Mechanics. So what?
A few days ago, Nobel laureate Steven Weinberg gave a one-hour lecture titled “What’s the matter with quantum mechanics?” at a workshop for science writers organized by the Council for the Advancement of Science Writing (CASW). In his lecture, Weinberg expr...

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Steven Weinberg doesn’t like Quantum Mechanics. So what?
A few days ago, Nobel laureate Steven Weinberg gave a one-hour lecture titled “What’s the matter with quantum mechanics?” at a workshop for science writers organized by the Council for the Advancement of Science Writing (CASW). In his lecture, Weinberg expr...

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Traffic jams as explained by SCIENCE!!

I was trying to find this article and video some time ago, but with no luck... but here it is: Navier-Stokes equation for Drivers ;)

(OK not really NS but the 1D version a.k.a Burgers equation should be a pretty good approximation of what happens in there...)
An actual experiment that shows how car jams start and grow. It is enough with a small disturbance in the form of a car breaking to create a jam further back in the flow. The results were published and can be read here: http://www.firenzeinbici.net/public/njp8_3_033001.pdf.

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"It’s somewhat ironic that, from my personal experience, the situation is actually worse in Loop Quantum Gravity, an approach pioneered, among others, by Lee Smolin. "

It's like Clinton vs. Trump...
String phenomenology of the somewhat different kind
[Cat’s cradle. Image Source .] Ten years ago, I didn’t take the “string wars” seriously. To begin with, referring to such an esoteric conflict as “war” seems disrespectful to millions caught in actual wars. In comparison to their suffering it’s hard to take...

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Dear Dr B: Why not string theory?
[I got this question in reply to my last week’s book review of Why String Theory? by Joseph Conlon .] Dear Marco: Because we might be wasting time and money and, ultimately, risk that progress stalls entirely. In contrast to many of my colleagues I do not t...

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"But CO2 emissions have negative consequences that can ripple through the environment, disrupting the Earth’s feedback mechanisms that keep the system regulated"

So we see a negative feedback effect as increased vegetation due to increased CO2 (more CO2 -> increased vegetation -> less CO2), but there are now some complex really really sensitive feedback effects that could completely derail the environment??

Sounds reeeeally plausible because, like, we all know how sensitive life on earth can be, because life on earth has only existed like a few billion of years or so...


http://www.digitaltrends.com/cool-tech/earth-greening-study-shows/

3D printing - adding a whole new dimension to printing woes...

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Damn I just knew it:

"Amalric’s study found that mathematicians had reduced activity in the visual areas of the brain involved in facial processing. This could mean that the neural resources required to grasp and work with certain math concepts may undercut—or “use up”—some of the brain’s other capacities"

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LOL "Oh hang on, there's a bee on my arm... " Hilarious XD

Gotta have this as an app for my phone (and in Finnish)

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"DeepMind’s program AlphaGo beat Fan Hui, the European Go champion, five times out of five in tournament conditions, the firm reveals in research published in Nature on 27 January"

Holy crap!!
Huge news from our colleagues at DeepMind. Go was long considered a key problem for AI, because it's a game for which the 'try all combinations and see which does best' is simply not possible, and human Go players rely heavily on abstract pattern recognition to guide their decisions. This is further evidence that human-level pattern recognition is no longer a 'science' problem per-se (but still a mighty engineering problem). It's time for us to focus more on exploring higher levels of cognition.
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