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Monthly Archives: December 2010
Henry et al. in PNAS, “Microfossils in calculus demonstrate consumption of cooked foods in Neanderthal diets”
“Neanderthals diet includes the consumption of a variety of plant foods, in the form of phytoliths and starch grains recovered from dental calculus of Neanderthal skeletons from Shanidar Cave, Iraq, and Spy Cave, Belgium. Some of the plants are typical … Continue reading
Luc Montagnier, 2008 Nobel laureate, will follow the steps of Jacques Benveniste
“HIV discoverer and 2008 Nobel laureate Luc Montagnier announced earlier this month that, at age 78, he will take on the leadership of a new research institute at Jiaotong University in Shanghai.He plans to study electromagnetic waves that emanate from the … Continue reading
Posted in News, Nobel Prize, Pseudoscience
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Kinchin, “Investigation into the centre of gravity and stability of a bus”
Don’t try this at home (even if you are an expert bus driver). Driving on two wheels is only a gendanken problem for a physics course. How the centre of gravity of a ‘bus’ changes with the position of the load (f.ex. the … Continue reading
Posted in Classical Mechanics, Education, Physics, Science
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Aspelmeyer in Nature, “Quantum mechanics: The surf is up”
“Researchers have long wanted to be able to control macroscopic mechanical objects in their smallest possible state of motion. Success in achieving that goal heralds a new generation of quantum experiments.” Markus Aspelmeyer, “Quantum mechanics: The surf is up,” News … Continue reading
Google Books Team introduces “culturomics” in Science Magazine
“Google Books has digitized over fifteen million books: over 11% of all the books ever published (about 129 million book editions). The Google Books collection contains over five billion pages and two trillion words, with books dating back to as early as 1473 … Continue reading
Brumfiel in Nature, “No black holes at LHC”
“The end of the world is not nigh after all. Flouting predictions from some theorists, microscopic black holes have so far failed to appear inside the Large Hadron Collider (LHC), scientists there have revealed. The result will be posted this … Continue reading
Posted in Uncategorized
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Easterlin et al., “The happiness–income paradox” also in Latin American and eastern European countries
“The striking thing about the happiness–income paradox is that over the long-term —usually a period of 10 year or more—happiness does not increase as a country’s income rises. The evidence for this was not limited only to developed countries, but … Continue reading
Sergi Regot, Javier Macia, et al. “Distributed biological computation with multicellular engineered networks”
Synthetic biology allows the building of artificial computational devices inspired in the standard design of electronic circuits by using cellular consortia, including reusable and reprogrammable complex circuits, as shown by Ricard Solé and colleagues. Logic gates for complex Boolean computations can be implemented by engineered yeast cells, … Continue reading
Quantum entanglement in a macroscopic system at high temperatures
“Quantum entanglement has been observed at low temperatures in both microscopic and macroscopic systems. It now seems that the effect can also occur at high temperatures if the systems are not in thermal equilibrium.” The spanish scientist Fernando Galve and … Continue reading
Posted in News, Quantum Mechanics, Science
Tagged Entanglement, High temperature, Nanomechanical oscillators
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Bowman and Rogers in Nature, “A lower limit of Δz > 0.06 for the duration of the reionization epoch”
“The Epoch of Reionization (EOR) refers to the period in the history of the universe during which the predominantly neutral intergalactic medium was ionized by the emergence of the first luminous sources. These sources may have been stars, galaxies, quasars, … Continue reading
Moss, Scott, Zibin, “No evidence for anomalously low variance circles on the sky”
Gurzadyan & Penrose claim to have found directions on the sky centred on which are circles of anomalously low variance in the cosmic microwave background (CMB). An independent analysis has confirmed such a result. However, properly simulated Gaussian CMB data contain just the … Continue reading
Hohenberg, “Consistent quantum theory,” or Copenhagen done right!
Consistent quantum theory (CQT) was introduced over 25 years ago by Robert Griffiths (1984), and further elaborated by Gell-Mann and Hartle (1993). This theory is a version of orthodox quantum mechanics based in the principle of complementarity. Complementarity is the essence of quantum … Continue reading
Posted in Physics, Quantum Mechanics, Science
Tagged Complementarity, Interpretation
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Pennisi, “What Poison? Bacterium Uses Arsenic To Build DNA and Other Molecules”
Today, every body talks about the new paper accepted in Science by NASA scientist Felisa Wolfe-Simon (see fotograph) reported also in Science by Elizabeth Pennisi, “Biochemistry: What Poison? Bacterium Uses Arsenic To Build DNA and Other Molecules,” News of the … Continue reading
Posted in Biochemistry, Biology
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