How Much Free Speech for Scientists? » American Scientist
Restrictions on scientific communication are nothing newârecall that Galileo was sentenced to house arrest by Church inquisitors in 1633 for supporting the Copernican theory. But serious threats to the freedom of scientific discourse have come to the forefront recently, after suspicions were raised of Chinese spying at U.S. national laboratories. These allegations triggered the imposition of new restraints and revived some old ones. So it is a good time for the scientific community to reflect on the evolution of such government controls in our time, to express support for regulations that are justified and to protest those that do harm After the outbreak of World War II, many physicists voluntarily censored themselves, with the result that…
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Chemotrophic bacteria, getting its energy by oxidizing dissolved iron
This slimy, red stuff is incredibly fascinating: rather than metabolizing sunlight, like most autotrophs, it lives in the transition zone where water, de-oxygenated by microorganisms feeding on the organic-rich swamp beneath, meets the air. The bacteria combines the oxygen with the iron, keeping the electron released by the oxidation process as its energy supply. Soooper cool! Other iron-oxidizing bacteria form the base of the food chain at geothermal vents on the deep ocean floor where there is no sunlight. If you introduce carbon, you can run the cycle backward. Watch this video for a completely mind-blowing demonstration.
Will UAS Mapping Impact the LiDAR Market?
With the latest FAA relaxation on UAS flight regulations (FAA Part 107), the mapping industry are taking a serious look at practicality and usefulness of Unmanned Aerial Systems (UAS) in complementing or completely replacing some current mapping approaches. These relaxed rules have occurred in concert with noticeable advances in image processing algorithms, implemented in low... Read More
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Refractive index less than two: photonic nanojets yesterday, today and tomorrow [Invited]
Boris S. Luk’yanchuk, Ramón Paniagua-Domínguez, Igor Minin, Oleg Minin, and Zengbo Wang Author Information Boris S. Luk’yanchuk,1,2,3,* Ramón Paniagua-Domínguez,1 Igor Minin,4 Oleg Minin,5 and Zengbo Wang6 1Data Storage Institute, A*STAR (Agency for Science, Technology and Research), 2 Fusionopolis Way, Kinesis, 138634, Singapore 2Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, 637371 Singapore 3Faculty of Physics, Lomonosov Moscow State University, Moscow 119991, Russia 4Tomsk Polytechnic University, 36, Lenin Avenue, 634050, Russia 5Tomsk State University, Tomsk, 30 Lenin Avenue, 634050, Russia 6School of Electronic Engineering, Bangor University, Bangor LL57 1UT, UK Copy Citation Text Boris S. Luk’yanchuk, Ramón Paniagua-Domínguez, Igor Minin, Oleg Minin, and Zengbo Wang, "Refractive index less than two…
Surgeon jumps from bridge after divorce from TV personality wife
A top local surgeon and the ex-husband of ABC News’ chief women’s health correspondent killed himself by leaping off the George Washington Bridge, it was reported Sunday. Dr. Robert Ash…