BLOGS

Bernardo Alberto Houssay

Born: 10 April 1887, Buenos Aires, Argentina

Died: 21 September 1971, Buenos Aires, Argentina

Affiliation at the time of the award: Instituto de Biologia y Medicina Experimental (Institute for Biology and Experimental Medicine), Buenos Aires, Argentina

Prize motivation: "for his discovery of the part played by the hormone of the anterior pituitary lobe in the metabolism of sugar"

Bernardo Alberto Houssay was born in Buenos Aires, Argentina, on April 10, 1887, one of the eight children of Dr. Albert and Clara (née Laffont) Houssay, who had come to Argentina from France. His father was a barrister. His early education was at a private school, the Colegio Británico. He then entered the School of Pharmacy of the University of Buenos Aires at the exceptionally early age of 14, graduating in 1904. He had already begun studying medicine and, in 1907, before completing his studies, he took up a post in the Department of Physiology. He began here his research on the hypophysis which resulted in his M.D.-thesis (1911), a thesis which earned him a University prize.

In 1910 he was appointed Professor of Physiology in the University's School of Veterinary Medicine. During this time he had been doing hospital practice and, in 1913, became Chief Physician at the Alvear Hospital. In addition to this he was also in charge of the Laboratory of Experimental Physiology and Pathology in the National Department of Hygiene from 1915 to 1919. In 1919 he became Professor of Physiology in the Medical School at Buenos Aires University. He also organized the Institute of Physiology at the Medical School, making it a centre with an international reputation. He remained Professor and Director of the Institute until 1943. In this year the Government then in power deprived him of his post, as a result of his voicing his opinion that there should be effective democracy in the country. Although receiving many invitations from abroad, he continued his work in an institute which he organized with the support of funds contributed by the Sauberan Foundation and other bodies. This was the Instituto de Biología y Medicina Experimental, where he still remains as Director. In 1955 a new Government reinstated him in the University.

I almost hesitate to post it because many who do not "believe in the Big Bang Theory" will shout: aha! I say: ah, science - self-examining, exploring; learning more tomorrow than we thought we knew yesterday. Quantum mechanics had its trials and tribulations: Weins Law, Rayleigh-Jeans Law and the "ultraviolet catastrophe" eventually getting to Max Planck (of Planck's constant) and light seen as quanta. This eventually led to Einstein and the photoelectric effect in his Annus mirabilis papers generated in a lowly patent office in Munich. Thus we have the Internet, I-phones, flat screens, etc.

This description matches some of the wording I've seen over the years of the "universe as hologram" and admittedly either didn't understand or regarded as new age mystic pop culture. This challenge will have to be peer-reviewed and experiments performed to verify. Stay tuned...

However, Pluto is still not a planet.

A few nine-year-olds will send me hate mail now...

It could be time to bid the Big Bang bye-bye. Cosmologists have speculated that the Universe formed from the debris ejected when a four-dimensional star collapsed into a black hole — a scenario that would help to explain why the cosmos seems to be so uniform in all directions.

The standard Big Bang model tells us that the Universe exploded out of an infinitely dense point, or singularity. But nobody knows what would have triggered this outburst: the known laws of physics cannot tell us what happened at that moment.

“For all physicists know, dragons could have come flying out of the singularity,” says Niayesh Afshordi, an astrophysicist at the Perimeter Institute for Theoretical Physics in Waterloo, Canada.

It is also difficult to explain how a violent Big Bang would have left behind a Universe that has an almost completely uniform temperature, because there does not seem to have been enough time since the birth of the cosmos for it to have reached temperature equilibrium.

In our Universe, a black hole is bounded by a spherical surface called an event horizon. Whereas in ordinary three-dimensional space it takes a two-dimensional object (a surface) to create a boundary inside a black hole, in the bulk universe the event horizon of a 4D black hole would be a 3D object — a shape called a hypersphere. When Afshordi’s team modelled the death of a 4D star, they found that the ejected material would form a 3D brane surrounding that 3D event horizon, and slowly expand.

The authors postulate that the 3D Universe we live in might be just such a brane — and that we detect the brane’s growth as cosmic expansion. “Astronomers measured that expansion and extrapolated back that the Universe must have begun with a Big Bang — but that is just a mirage,” says Afshordi.

Baruj Benacerraf

Born: 29 October 1920, Caracas, Venezuela

Died: 2 August 2011, Boston, MA, USA

Affiliation at the time of the award: Harvard Medical School, Boston, MA, USA

Prize motivation: "for their discoveries concerning genetically determined structures on the cell surface that regulate immunological reactions"

I was born in Caracas, Venezuela, on October 29, 1920 of Spanish-Jewish ancestry. My father, a self-made business man, was a textile merchant and importer. He was born in Spanish Morocco, whereas my mother was born and raised in French Algeria and brought up in the French culture. When I was five years old, my family moved to Paris where we resided until 1939. My primary and secondary education was in French which had a lasting influence on my life. The second World War caused our return to Venezuela, where my father continued to have a thriving business. It was decided that I should pursue my education in the United States, and we moved to New York in 1940. I registered at Columbia University in the School of General Studies, and graduated with a Bachelor of Science Degree in 1942, having also completed the pre-medical requisites for admission to Medical School. By that time, I had elected to study biology and medicine, instead of going into the family business, as my father would have wanted. I did not realize, however, that admission to Medical School was a formidable undertaking for someone with my ethnic and foreign background in the United States of 1942. In spite of an excellent academic record at Columbia, I was refused admission by the numerous medical schools I applied to and would have found it impossible to study medicine except for the kindness and support of George W. Bakeman, father of a close friend, who was then Assistant to the President of the Medical College of Virginia in Richmond. Learning of my difficulties, Mr. Bakeman arranged for me to be interviewed and considered for one of the two remaining places in the Freshman class. I was accepted and began my medical studies in July 1942. While in medical school, I was drafted into the U.S. Army with the other medical students, as part of the wartime training program, and naturalized American citizen in 1943 I greatly enjoyed my medical studies, which at the Medical College of Virginia were very clinically oriented. I received what I considered to be an excellent medical education in the relatively short time of three war years.

ARGONNE, Ill. – Just like people, materials can sometimes exhibit “multiple personalities.” This kind of unusual behavior in a certain class of materials has compelled researchers at the U.S. Department of Energy’s Argonne National Laboratory to take a closer look at the precise mechanisms that govern the relationships between superconductivity and magnetism.

Previous measurements of magnetic and electronic properties in these superconducting oxide materials relied on aggregate or “bulk” measurements of a large area. By using advanced scanning tunneling microscopy at the laboratory’s Center for Nanoscale Materials, Argonne physicist John Freeland and materials scientist Nathan Guisinger were able to develop a clearer picture of the physical and chemical behavior of boundary regions within the material.

According to Guisinger, the most important regions of study in oxide superconductors are the boundaries or interfaces.

“You can think of the sample as kind of like lasagna,” Guisinger said. “There are layers within it that have different properties, and we want to see if the ‘cheese’ in one section mixes with the ‘sauce’ in another.”

Born: 13 June 1911, San Francisco, CA, USA

Died: 1 September 1988, Berkeley, CA, USA

Affiliation at the time of the award: University of California, Berkeley, CA, USA

Prize motivation: "for his decisive contributions to elementary particle physics, in particular the discovery of a large number of resonance states, made possible through his development of the technique of using hydrogen bubble chamber and data analysis"

Field: Particle physics

Luis W. Alvarez was born in San Francisco, Calif., on June 13, 1911. He received his B.Sc. from the University of Chicago in 1932, a M.Sc. in 1934, and his Ph.D. in 1936. Dr. Alvarez joined the Radiation Laboratory of the University of California, where he is now a professor, as a research fellow in 1936. He was on leave at the Radiation Laboratory of the Massachusetts Institute of Technology from 1940 to 1943, at the Metallurgical Laboratory of the University of Chicago in 1943-1944, and at the Los Alamos Laboratory of the Manhattan District from 1944 to 1945.

Early in his scientific career, Dr. Alvarez worked concurrently in the fields of optics and cosmic rays. He is co-discoverer of the "East-West effect" in cosmic rays. For several years he concentrated his work in the field of nuclear physics. In 1937 he gave the first experimental demonstration of the existence of the phenomenon of K-electron capture by nuclei. Another early development was a method for producing beams of very slow neutrons. This method subsequently led to a fundamental investigation of neutron scattering in ortho- and para-hydrogen, with Pitzer, and to the first measurement, with Bloch, of the magnetic moment of the neutron. With Wiens, he was responsible for the production of the first 198Hg lamp; this device was developed by the Bureau of Standards into its present form as the universal standard of length. Just before the war, Alvarez and Cornog discovered the radioactivity of ³H (tritium) and showed that ³He was a stable constituent of ordinary helium. (Tritium is best known as a source of thermonuclear energy, and ³He has become of importance in low temperature research.)

Contrary to classical mechanics, quantum physics states that a particle can act like a wave and vice versa – an idea that was first proposed by Nobel-prize-winning physicist Louis de Broglie back in 1923. While the idea that tiny particles such as electrons could behave like a wave came as a shock, scientists now know that even objects a million times more massive than electrons, such as complex molecules, also show quantum interference. Massive molecules have very small wavelengths and therefore a grating with extremely thin and closely spaced slits is needed to observe their diffraction. Currently, such sophisticated devices are specially fabricated using nanotechnology techniques.

TECHNOLOGY REVIEW: Today, Lu Lan at Zhejiang University in China and a few pals have actually created the first invisibility cloak designed using topology optimization. They carved it out of Teflon and it took them all of 15 minutes using a computer-controlled engraving machine. “The fabrication process of a sample is substantially simplified,” they say.

The resulting “Teflon eyelid” invisibility cloak hides a cylindrical disc of metal the size of poker chip from microwaves. But crucially, its performance closely matches the prediction of the computer simulation.

"The dumbing down of Americans is most evident in the slow decay of substantive content in the enormously influential media, the 30 second sound bites (now down to 10 seconds or less), lowest common denominator programming, credulous presentations on pseudoscience and superstition, but especially a kind of celebration of ignorance."

Carl Sagan, "The Demon-Haunted World: Science as a Candle in the Dark."

This is a significant date: first of all, it's Hispanic Heritage Month; 5 years ago along with the global financial meltdown, my mother celebrated what would be her last birthday this side of the grave. She lasted until the Thursday before Mother's Day in 2009. She would have been 88 today.

This is one of my favorite quotes by Carl. A shame "The Sagan Effect" is part of the lexicon. We could use some more popularizing of science (kudos to Science Channel), our consumption of which is only as end-users of high tech devices. Neil deGrasse Tyson's revival of "Cosmos" can't come soon enough.

It is quite evident by the turn of recent events, candidates for and in office; ridiculous public statements, inane sound bites parroted; conspiracy theories ad nauseum - cabals, crystals, dogs and cats living together (Ghostbusters - couldn't resist), Bermuda Triangle, Bigfoot, faking six moon landings (and one near-fatal attempt), pyramids by aliens, poltergeists, UFOs and our propensity to concern ourselves with the goings on of "reality shows" - this quote is more haunting than his contribution to modeling and warning the aftermath of thermonuclear war: a nuclear winter. The real cabal conspiracy is NOT wanting to teach critical thinking skills (they now "admit" a wording gaffe/faux pas); "teaching the controversy"; of the dumbing down of Americans in prime time.

A technocracy is so far only hypothetical and the basis of the fictional Superman's alien society (and, it apparently didn't work out well for them). I don't expect an overnight appreciation for science from any of our leaders, but such would help in the long run. It would help Congress's approval rating if they could regulate Wall Street instead the Citizen's United vice-versa. At least have a discussion about how technology is rapidly diminishing the need for certain career fields that can only exacerbate the income gap. Instead, for 126 days of "labor," we get meaningless votes on the taxpayer's time and dollar as we sleepwalk the "American Dream."

We slouch nonchalantly towards dystopia - somewhere between Margaret Atwood's The Handmaid's Tale and Octavia Butler's Parable series. We ignore evidence we think inconvenient to our beliefs; create controversies in science classes that do not exist to satisfy a constituency that thinks dinosaur bones were placed in digs by beelzebub The crazy thing is people run on this claptrap...and get elected. Then, they wish to be president and have the nuclear codes to Armageddon. The bellicose bravado expressed by certain pundits on the Syrian conflict is prime example of rushing in where angels fear to tread. With noted exception of the Iran-Contra affair star shredder and smuggler, no pundit has any military experience. There are implications for the region and the globe beyond chemical weapons. Biological life is not like "The SIMS": there is no reset button.

What is frightening is that this dumbing down process may actually be a prelude to global conflagration: idiocy before oblivion. I don't begrudge anyone's beliefs and don't impose mine, but the "New Heaven and a New Earth" hopefully has a solution to a warming climate, and post nukes - mechanism to dissipate radiative half-life followed by surviving environmental chill, or full life, liberty and the pursuit of happiness on this pale blue dot...will not be possible.

There is no shortage of possible quantum storage devices but one sits head and shoulders above most others: a nitrogen atom that has replaced a carbon atom in a diamond lattice, an arrangement known as a nitrogen-vacancy centre.

Today, an international team of physicists say they’ve used biological self-assembly techniques to make diamond-based prototypes of the quantum information storage devices of this type. That’s a development that has the potential to profoundly influence the future of computing.

The key to all this is nitrogen-vacancy centres in diamond which behave like single atoms. They can store photons, emit them again and interact with other nitrogen-vacancy centres nearby. In fact, their photon storage ability is legendary, holding them, and the information the carry, for periods stretching to milliseconds. At room temperature.

New and unexpected data indicate Voyager 1 has been traveling for about one year through plasma, or ionized gas, present in the space between stars. Voyager is in a transitional region immediately outside the solar bubble, where some effects from our sun are still evident. A report on the analysis of this new data, an effort led by Don Gurnett and the plasma wave science team at the University of Iowa, Iowa City, is published in Thursday's edition of the journal Science.

"Now that we have new, key data, we believe this is mankind's historic leap into interstellar space," said Ed Stone, Voyager project scientist based at the California Institute of Technology, Pasadena. "The Voyager team needed time to analyze those observations and make sense of them. But we can now answer the question we've all been asking -- 'Are we there yet?' Yes, we are."

Live-and-let-live: a position I feel (or, at least I hope) lacks arrogance. The couple that didn't think they would be asked about their responsibility seemed slightly appalled at my stating the facility policy; my theological debate was started by someone whom I wasn't addressing directly, has no knowledge of my life experiences nor asked about what my views in his area of concern were: this person just assumed me hostile.

Science is an iterative process of investigation: it often holds strong convictions until evidence clues otherwise, e.g. the  luminiferous aether was once thought to explain the propagation of light - experiment and the miracle year of Einstein - provided correction. It is by no means a perfect process - the scientist and engineers are only human, subject to human frailties, foibles and flaws in their thinking. Thus, a relentless adherence to the Scientific Method is the central arbiter of what is and is not acceptable science, removing one's persuasion from consideration. Science often doesn't know; therefore explores the unknown.