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Contents contributed and discussions participated by LeopoldS

LeopoldS

Lunecase - Bring the back of your iPhone to life! by Concepter - Kickstarter - 6 views

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    wireless power transmission made useful ? this application did certainly not come to my mind when Guy Pignolet showed me 12 years ago how his handy would lid up a small diode after our first SPS meeting in Paris ...
LeopoldS

Flies Evade Looming Targets by Executing Rapid Visually Directed Banked Turns - 4 views

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    any idea how their brain manages this ?
LeopoldS

Norwegian Skydiver Almost Gets Hit by Falling Meteor - and Captures it on Film - 1 views

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    apparently first time that somebody filmed a meteorite falling after the luminous phase .... impressive pics
LeopoldS

2030 : un ticket pour l'espace - Libération - 1 views

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    ... by our DG
LeopoldS

Students' space experiment recovered from Arctic Circle -- ScienceDaily - 0 views

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    nice story ...
LeopoldS

JSTOR: The American Naturalist, Vol. 183, No. 3 (March 2014), pp. 376-383 - 2 views

shared by LeopoldS on 09 Mar 14 - No Cached
pandomilla liked it
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    plant intelligence in action (even plants are more intelligent than our AI algorithm)
LeopoldS

The Face Behind Bitcoin - Newsweek - 1 views

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    nice chap
LeopoldS

Spritz - 0 views

shared by LeopoldS on 06 Mar 14 - No Cached
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    future of reading on mobile devices? probably not but still nice
LeopoldS

Cell phones are 'Stalin's dream,' says free software movement founder - 3 views

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    "I don't have a cell phone. I won't carry a cell phone," says Stallman, founder of the free software movement and creator of the GNU operating system. "It's Stalin's dream. Cell phones are tools of Big Brother. I'm not going to carry a tracking device that records where I go all the time, and I'm not going to carry a surveillance device that can be turned on to eavesdrop." he is right once more ...
LeopoldS

An optical lattice clock with accuracy and stability at the 10-18 level : Nature : Natu... - 0 views

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    Progress in atomic, optical and quantum science1, 2 has led to rapid improvements in atomic clocks. At the same time, atomic clock research has helped to advance the frontiers of science, affecting both fundamental and applied research. The ability to control quantum states of individual atoms and photons is central to quantum information science and precision measurement, and optical clocks based on single ions have achieved the lowest systematic uncertainty of any frequency standard3, 4, 5. Although many-atom lattice clocks have shown advantages in measurement precision over trapped-ion clocks6, 7, their accuracy has remained 16 times worse8, 9, 10. Here we demonstrate a many-atom system that achieves an accuracy of 6.4 × 10−18, which is not only better than a single-ion-based clock, but also reduces the required measurement time by two orders of magnitude. By systematically evaluating all known sources of uncertainty, including in situ monitoring of the blackbody radiation environment, we improve the accuracy of optical lattice clocks by a factor of 22. This single clock has simultaneously achieved the best known performance in the key characteristics necessary for consideration as a primary standard-stability and accuracy. More stable and accurate atomic clocks will benefit a wide range of fields, such as the realization and distribution of SI units11, the search for time variation of fundamental constants12, clock-based geodesy13 and other precision tests of the fundamental laws of nature. This work also connects to the development of quantum sensors and many-body quantum state engineering14 (such as spin squeezing) to advance measurement precision beyond the standard quantum limit.
LeopoldS

Directed Growth of Silk Nanofibrils on Graphene and Their Hybrid Nanocomposites - ACS M... - 0 views

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    of interest to Tom's project?
LeopoldS

The Structure Sensor is the first 3D sensor for mobile devices - 2 views

shared by LeopoldS on 10 Jan 14 - No Cached
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    our next gadget? fully open source it seems
LeopoldS

Interesting New Products and Inventions: Air Purifying Bike Concept - 0 views

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    safe not only fossil fuels when biking but clean the air at the same time :-) (well... in theory)
LeopoldS

A Formula for Happiness - NYTimes.com - 1 views

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    beati pauperes spiritu :-) "Political junkies might be interested to learn that conservative women are particularly blissful: about 40 percent say they are very happy. That makes them slightly happier than conservative men and significantly happier than liberal women. The unhappiest of all are liberal men; only about a fifth consider themselves very happy." I think that there are many factors missing there that are just not asked possibly such as altruism as a source for happiness ...
LeopoldS

Testing Continues for Satellite Servicing Capabilities | NASA - 0 views

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    Engineers at NASA's Kennedy Space Center in Florida are partnering with counterparts at the agency's Goddard Space Flight Center in Maryland to develop systems to bring potential future robotic "service tow trucks" to orbiting spacecraft in need of aid
LeopoldS

NASA's Juno Gives Starship-Like View of Earth Flyby | NASA - 1 views

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    nice movie
LeopoldS

Peter Higgs: I wouldn't be productive enough for today's academic system | Science | Th... - 1 views

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    what an interesting personality ... very symathetic Peter Higgs, the British physicist who gave his name to the Higgs boson, believes no university would employ him in today's academic system because he would not be considered "productive" enough.

    The emeritus professor at Edinburgh University, who says he has never sent an email, browsed the internet or even made a mobile phone call, published fewer than 10 papers after his groundbreaking work, which identified the mechanism by which subatomic material acquires mass, was published in 1964.

    He doubts a similar breakthrough could be achieved in today's academic culture, because of the expectations on academics to collaborate and keep churning out papers. He said: "It's difficult to imagine how I would ever have enough peace and quiet in the present sort of climate to do what I did in 1964."

    Speaking to the Guardian en route to Stockholm to receive the 2013 Nobel prize for science, Higgs, 84, said he would almost certainly have been sacked had he not been nominated for the Nobel in 1980.

    Edinburgh University's authorities then took the view, he later learned, that he "might get a Nobel prize - and if he doesn't we can always get rid of him".

    Higgs said he became "an embarrassment to the department when they did research assessment exercises". A message would go around the department saying: "Please give a list of your recent publications." Higgs said: "I would send back a statement: 'None.' "

    By the time he retired in 1996, he was uncomfortable with the new academic culture. "After I retired it was quite a long time before I went back to my department. I thought I was well out of it. It wasn't my way of doing things any more. Today I wouldn't get an academic job. It's as simple as that. I don't think I would be regarded as productive enough."

    Higgs revealed that his career had also been jeopardised by his disagreements in the 1960s and 7
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    interesting one - Luzi will like it :-)
LeopoldS

Flying hacker contraption hunts other drones, turns them into zombies | Ars Technica - 1 views

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    nice exploit
LeopoldS

Sex differences in the structural connectome of the human brain - 0 views

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    it seems that there are indications that we are differently wired .... Sex differences in human behavior show adaptive complementarity: Males have better motor and spatial abilities, whereas females have superior memory and social cognition skills. Studies also show sex differences in human brains but do not explain this complementarity. In this work, we modeled the structural connectome using diffusion tensor imaging in a sample of 949 youths (aged 8-22 y, 428 males and 521 females) and discovered unique sex differences in brain connectivity during the course of development. Connection-wise statistical analysis, as well as analysis of regional and global network measures, presented a comprehensive description of network characteristics. In all supratentorial regions, males had greater within-hemispheric connectivity, as well as enhanced modularity and transitivity, whereas between-hemispheric connectivity and cross-module participation predominated in females. However, this effect was reversed in the cerebellar connections. Analysis of these changes developmentally demonstrated differences in trajectory between males and females mainly in adolescence and in adulthood. Overall, the results suggest that male brains are structured to facilitate connectivity between perception and coordinated action, whereas female brains are designed to facilitate communication between analytical and intuitive processing modes.
LeopoldS

Description of Tersicoccus phoenicis gen. nov., sp. nov. isolated from spacecraft assem... - 0 views

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    bacteria apparently specialised in space clean rooms ...
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