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Sascha VongehrRSS Feed of this column.

Dr. Sascha Vongehr [风洒沙], physicist and philosopher, studied phil/math/chem/phys in Germany, obtained a BSc in theoretical physics (electro-mag) & MSc (stringtheory) at Sussex University... Read More »

There was an old man and a second, older man who was considerably older than the old man; they were visiting a very old man.  The afternoon passed without them saying a word.  As the sun was low already, the old man said slowly: “I didn’t expect that I would come to think like this.”

The older man slowly took a deeper breath, just barely audible to the other two old men, looked further into the distance and replied: “Yes.”

Light which triggers predominantly the so called L-cones, which are photoreceptors for long (L) wavelengths, trigger us to experience red color.  In this sense, some people hold the color red to be physical and “out there” in “reality”.

A century ago, “past” and “future”, previously strictly apart, mixed up and merged.  Temporal terminology improved.  Today, not actualized quantum states, that is merely “possible” alternatives, objectively “exist” (are real) when they interfere.  Again, two previously strictly immiscible realms mix. 

Lubos Motl is an acquaintance of mine, a high functioning idiot savant whose considerable abilities in juggling mathematics and its application to merely theoretical physics contrast an obvious lack in grasping truly complex systems (say those with uncertainty about meaning or due to deception), a lack that is so severe, it not just makes Lubos a social misfit (which is fine by me), but it even taints his intuition about physics, as for example evidenced by his misinterpretations of certain quantum mechanics papers that did not claim what he claims they claim.  He could be a leading physicis
Aaron H. Swartz was one of the most outspoken and hands-on activists for the transparency movement, which I largely support. He was especially active with open access issues and copyright reform.  He was part of the team that built an early version of Reddit and the widely-used RSS protocol, which he worked on at age 14, and there is more to his name inspite of his young age.  But he committed suicide in New York last Friday. 
That black holes radiate Hawking radiation is almost established knowledge although Hawking radiation has not been experimentally confirmed.  Hawking radiation, as of now, is founded on the consistency of the thermodynamics of, for example, black holes.  Hawking radiation being also found around string theory black holes for example adds confidence.