Menu

Blog

Archive for the ‘science’ category: Page 136

Jun 3, 2015

Quantum Entanglement: EPR Paradox

Posted by in categories: encryption, general relativity, physics, quantum physics, science

When I was a freshman at Cornell University some decades ago, I had a memorable teaching assistant for CS100, the entry level computer programming course taken by nearly every student in Engineering or Arts & Sciences. Gilles Brassard, a French Canadian, is now a chaired math professor at Université de Montréal and a preeminent cryptographer. He has also been inducted into the Royal Order of Canada. I am told that this is a bit like being knighted. In fact, this highest of civilian honors was established by Queen Elizabeth.

The author with Gilles Brassard in 2014

The author with Gilles Brassard in 2014

Gilles was a graduate student at Cornell in the mid ’70s. Back then, public key encryption was a radical concept. Named for three MIT professors who described it, RSA is now it is at the heart of every secure Internet transaction. Yet, the new generation of cryptographers refers to RSA as “classical cryptography”. The radicals have moved on to Quantum Cryptography. Gilles and his collaborator, Charles Bennett, are the pioneers and leaders in this burgeoning field. No one else is even pretender to the throne.

In its simplest terms, quantum cryptography achieves a secure communication channel because it relies on a stream of individual particles or “quanta” to convey information. If information is sent without any fat at all—just the minimum physics that can support the entropy—then any eavesdropping or rerouting of a message can be detected by the recipient. Voila! Perfect authentication, fidelity and security. Communication is secure because any attack can be detected.

Continue reading “Quantum Entanglement: EPR Paradox” »

Jun 3, 2015

Elon Musk Rebuffs Critics with Fundamentals

Posted by in categories: business, economics, environmental, government, innovation, policy, science, solar power, space, transportation

images

“If he was paid by the oil and gas industry lobby he couldn’t have written a more favorable article for them.”—Elon Musk

Video & Article on Criticism about Incentives

May 27, 2015

MIT’s President: Op-ed on Innovation

Posted by in categories: business, disruptive technology, economics, education, finance, government, innovation, policy, science, strategy

al_Life_Tech_Tips_Double_Layer_Passwords-03c11

“[T]he United States needs a more systematic way to help its bottled-up new-science innovators deliver their ideas to the world.”

A better way to deliver innovation to the world

May 26, 2015

Howard Hughes Medical Institute Selects 2015 Investigators

Posted by in categories: biological, biotech/medical, computing, DNA, education, genetics, life extension, neuroscience, science, scientific freedom

HHMI2015

“The Howard Hughes Medical Institute (HHMI) announced today that 26 of the nation’s top biomedical researchers will become HHMI investigators and will receive the flexible support necessary to move their research in creative new directions. The initiative represents an investment in basic biomedical research of $153 million over the next five years.”

Read more

May 23, 2015

Experimental Architect Explores Biology’s Role in Urban Design — By Henry Grabar for Next City

Posted by in categories: architecture, biological, complex systems, futurism, habitats, health, science

ARTICLE: “My own contribution has been to take the avant-garde ideas of architecture into a laboratory space.”

Bütschli Dynamic Droplet System in Summer/Fall 2013 issue of Artificial Life

May 21, 2015

NASA and The Planetary Society Launch the LightSail

Posted by in categories: astronomy, cosmology, education, energy, habitats, physics, science, solar power, space, space travel

The Planetary Society’s LightSail launched yesterday, May 20th, 2015.

May 20, 2015

The Trouble with Scientists — Philip Ball | Nautilus

Posted by in category: science

http://static.nautil.us/6067_024d2d699e6c1a82c9ba986386f4d824.jpg

“A common response to this situation is to argue that, even if individual scientists might fool themselves, others have no hesitation in critiquing their ideas or their results, and so it all comes out in the wash: Science as a communal activity is self-correcting. Sometimes this is true—but it doesn’t necessarily happen as quickly or smoothly as we might like to believe.” Read more

Apr 24, 2015

To be a Space Faring Civilization

Posted by in categories: astronomy, cosmology, human trajectories, innovation, science, space, space travel, transportation

Until 2006 our Solar System consisted essentially of a star, planets, moons, and very much smaller bodies known as asteroids and comets. In 2006 the International Astronomical Union’s (IAU) Division III Working Committee addressed scientific issues and the Planet Definition Committee address cultural and social issues with regard to planet classifications. They introduced the “pluton” for bodies similar to planets but much smaller.

The IAU set down three rules to differentiate between planets and dwarf planets. First, the object must be in orbit around a star, while not being itself a star. Second, the object must be large enough (or more technically correct, massive enough) for its own gravity to pull it into a nearly spherical shape. The shape of objects with mass above 5×1020 kg and diameter greater than 800 km would normally be determined by self-gravity, but all borderline cases would have to be established by observation.

Third, plutons or dwarf planets, are distinguished from classical planets in that they reside in orbits around the Sun that take longer than 200 years to complete (i.e. they orbit beyond Neptune). Plutons typically have orbits with a large orbital inclination and a large eccentricity (noncircular orbits). A planet should dominate its zone, either gravitationally, or in its size distribution. That is, the definition of “planet” should also include the requirement that it has cleared its orbital zone. Of course this third requirement automatically implies the second. Thus, one notes that planets and plutons are differentiated by the third requirement.

As we are soon to become a space faring civilization, we should rethink these cultural and social issues, differently, by subtraction or addition. By subtraction, if one breaks the other requirements? Comets and asteroids break the second requirement that the object must be large enough. Breaking the first requirement, which the IAU chose not address at the time, would have planet sized bodies not orbiting a star. From a socio-cultural perspective, one could suggest that these be named “darktons” (from dark + plutons). “Dark” because without orbiting a star, these objects would not be easily visible; “tons” because in deep space, without much matter, these bodies could not meet the third requirement of being able to dominate its zone.

Continue reading “To be a Space Faring Civilization” »

Apr 24, 2015

Article: Harnessing “Black Holes”: The Large Hadron Collider – Ultimate Weapon of Mass Destruction

Posted by in categories: astronomy, big data, computing, cosmology, energy, engineering, environmental, ethics, existential risks, futurism, general relativity, governance, government, gravity, information science, innovation, internet, journalism, law, life extension, media & arts, military, nuclear energy, nuclear weapons, open source, particle physics, philosophy, physics, policy, posthumanism, quantum physics, science, security, singularity, space, space travel, supercomputing, sustainability, time travel, transhumanism, transparency, treaties

Harnessing “Black Holes”: The Large Hadron Collider – Ultimate Weapon of Mass Destruction

Why the LHC must be shut down

Apr 24, 2015

CERN-Critics: LHC restart is a sad day for science and humanity!

Posted by in categories: astronomy, big data, complex systems, computing, cosmology, energy, engineering, ethics, existential risks, futurism, general relativity, governance, government, gravity, hardware, information science, innovation, internet, journalism, law, life extension, media & arts, military, nuclear energy, nuclear weapons, particle physics, philosophy, physics, policy, quantum physics, science, security, singularity, space, space travel, supercomputing, sustainability, time travel, transhumanism, transparency, treaties
PRESS RELEASE “LHC-KRITIK”/”LHC-CRITIQUE” www.lhc-concern.info
CERN-Critics: LHC restart is a sad day for science and humanity!

Continue reading “CERN-Critics: LHC restart is a sad day for science and humanity!” »