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The Philosophy of Mathematics, Science, and thought experiments with James Brown

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Science! Democracy! RoboRoaches! - Forbes

Science! Democracy! RoboRoaches! - Forbes | Ideas | Scoop.it
Science! Democracy! RoboRoaches!
Forbes
If Greg Gage and Tim Marzullo have their way, the raindrop-like sound of neural spikes will someday be as familiar to millions of high school and college science students as the sounds of a heartbeat or pulse.
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Ideas Roadshow: Ocean Enlightenment

Ideas Roadshow: Ocean Enlightenment | Ideas | Scoop.it
The first reaction anyone has when witnessing the spectacular light show of marine bioluminescence is that it is just pretty damned awesome.
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Bioluminescence

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Ideas Roadshow: The Power of Principles: Physics Revealed

Ideas Roadshow: The Power of Principles: Physics Revealed | Ideas | Scoop.it
How do we discover the laws of nature? We've all heard of the “scientific method” and the time-honoured convergence of theory with experiment. But how can we push our understanding well beyond where experiments can currently reach?
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Physics!

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Ideas Roadshow: Democracy: Clarifying the muddle

Ideas Roadshow: Democracy: Clarifying the muddle | Ideas | Scoop.it
Over the last decade or so, University of Cambridge political theorist John Dunn has been thinking increasingly deeply about the historical development and current significance of democracy in different parts of the world.
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Great political science stuff

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Ideas Roadshow: Rabbi With a Cause: Israel and Identity

Ideas Roadshow: Rabbi With a Cause: Israel and Identity | Ideas | Scoop.it
For many of us, caught as we are between love of tradition and the allure of contemporary liberal values, maintaining a coherent sense of personal identity is a highly delicate task indeed. But David J.
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About Jewish identity and Israeli politics.

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Ideas Roadshow: Herculaneum Uncovered

Ideas Roadshow: Herculaneum Uncovered | Ideas | Scoop.it
In 79 CE Mount Vesuvius erupted, launching torrents of gas, rock and ash on the unsuspecting cities of Pompeii and Herculaneum, swiftly obliterating them both.
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Great interview about the excavation of an ancient roman city.

 

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Ideas Roadshow: Saving the World at Business School

Ideas Roadshow: Saving the World at Business School | Ideas | Scoop.it
The notions of ‘environmental sustainability’ and ‘big business’ sometimes seem as incompatible as oil and water. Andrew Hoffman, however, is certain that this synthesis is possible.
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Sustainable business

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Quantum teleportation done between distant large objects

Quantum teleportation done between distant large objects | Ideas | Scoop.it
Spin state transferred between atomic gases

 

The macroscopic quantum spin state of caesium atoms held in a vessel has been teleported to a second vessel 50 cm away – according physicists in Denmark, Spain and the UK, who have performed the feat. Although this distance is far smaller than the 143 km record for the quantum teleportation of relatively simple states, the experiment achieves a different type of teleportation that had previously been achieved only across microscopic distances. The technique can teleport complex quantum states and could therefore have a range of technological applications – including quantum computing, long-distance quantum communication and remote sensing.

 

Quantum teleportation was first proposed in 1993 by Charles Bennett, of the IBM Thomas J Watson Research Center in New York, and colleagues. It allows one person (Alice) to send information about an unknown quantum state to another person (Bob) by exchanging purely classical information. It utilizes the quantum entanglement between two particles; one with Alice and one with Bob. Alice interacts the unknown quantum state with her half of the entangled state, measures the combined quantum state and sends the result through a classical channel to Bob. The act of measurement alters the state of Bob's half of the entangled pair and this, combined with the result of Alice's measurement, allows Bob to reconstruct the unknown quantum state.

 

This deterministic continuous-variable teleportation was proposed and realized in the lab by Eugene Polzik and colleagues at the Niels Bohr Institute in Copenhagen, together with researchers at the Institute of Photonic Sciences (ICFO) in Barcelona and the University of Nottingham. Their experimental set-up involves two room-temperature samples of caesium-133 gas held in glass containers and separated by about 50 cm. The aim of the experiment is to use light to teleport the collective quantum spin state of 10E12atoms from one container to the other. The team extended the life of the state by coating the insides of the containers with a special material that does not absorb angular momentum from the atoms.

 

Precise control over the spin states of the system was done using constant and oscillating magnetic fields. They also collaborated with theorists Christine Muschik at the ICFO and Ignacio Cirac of the Max Planck Institute for Quantum Optics, near Munich, to develop a new model of the interaction between the atoms and the light. Using these advances, they teleported multiple collective spin states between the two canisters and looked at the variance in their measurements. When they compared this with the theoretical minimum variance that could be achieved by sending the spin state information in a purely classical manner, they found that the variance from their process was lower. "We have achieved the first deterministic, atomic-to-atomic teleportation over a macroscopic distance," says Polzik.

 

Hugues de Riedmatten, a quantum-optics expert at the ICFO – who was not involved with the experiment – says that the research is "very significant", describing the results as "convincing". He cautions, however, that it is "a proof of principle", saying "I think it's a first step. If you would like to use it for doing useful things in quantum-information science, for example, you would need to transport much more complicated quantum states. It remains to be seen whether this will be possible or not."


Via Dr. Stefan Gruenwald
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Ideas Roadshow: Babbling Barbarians: How Translators Keep Us Civilized

Ideas Roadshow: Babbling Barbarians: How Translators Keep Us Civilized | Ideas | Scoop.it
The phrase “A translation is no substitute for the original” is one that gets under the skin of writer, translator and Director of Princeton University’s Program in Translation and Intercultural Communication David Bellos.
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translation

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Ideas Roadshow: Exploring Autism

Ideas Roadshow: Exploring Autism | Ideas | Scoop.it
Autism, it seems, is all around us. Once thought to only affect a tiny minority of 0.04% of the population, modern researchers are now of the view that it is more than 25 times more prevalent than we had once imagined, with current figures...
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All about autism and autism research

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Ideas Roadshow: SETI: Astronomy as a Contact Sport

Ideas Roadshow: SETI: Astronomy as a Contact Sport | Ideas | Scoop.it
In northern California, 42 radio telescopes lay scattered across a meadow, dedicated to what many have called the most profound search in human history: the search for extraterrestrial intelligence (SETI).
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About space and stuff.

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Ideas Roadshow: Turning the Mirror: A View From the East

Ideas Roadshow: Turning the Mirror: A View From the East | Ideas | Scoop.it
Pankaj Mishra’s most recent book, From the Ruins of Empire: The Intellectuals Who Remade Asia provocatively opens by declaring that, for many people, the modern world began in 1905 at the Battle of Tsushima when the Japanese navy annihilated the...
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All about the Western challenge to the East

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New Ideas Every Week

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Great wibsite that features informative videos and eBooks about a diverse range of Ideas.

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