We saw in the second entry of this series that predicates like “…is true” have the following linguistic function: applied to an expression that designates a sentence X, they render a new (pro)sentence (“X is true”) that expresses exactly the same as the first proposition. This has lead some philosophers (not a majority, really) to […]
Nobel-laureate Pierre-Gilles de Gennes allegedly once said of nuclear fusion: “We say that we will put the sun into a box. The idea is pretty. The problem is, we don’t know how to make the box “. Indeed, the task is challenging in a way that even surpasses the stringent design of world-famous LHC (Large […]
Humanities & Social Sciences • Science • Technology • Weekly Selection
Images catch molecules moving in glass The movement of molecules in the world’s thinnest glass has been captured in images and may help researchers better understand how the substance bends and breaks. Live Science Remains of water-filled asteroid found around white dwarf A white dwarf about 170 light-years from Earth holds evidence of a water-bearing […]
It is common to think that sci-fi writers are extremely creative and smart when they depict alien creatures with weird (and usually disgusting) ways of reproducing, generally using for this purpose the bodies of incautious and often naïve human characters. And they truly are that creative and imaginative, I’m not going to take that credit […]
Imagine you are invited to a demonstration at the local shopping center. You are shown a new product, a little ring made of a very special material that has been developed in a highly regarded research center. The scientists who are describing the ring provide all types of information and answer your questions convincingly and […]
In 2012 the Nobel Memorial Prize in Economic Science was granted to two mathematicians, Lloyd Shapley and Alvin Roth, “ for the theory of stable allocations and the practice of market design”. The market design in their theory was not exactly a market, at least, not the kind one usually calls that way. They are […]
With the delicate economical situation that many developed countries are experiencing in the last years, a significant number of questions and concerns have been risen about how to properly assign and distribute funding to scientific institutions and research group leaders. In particular, a relevant question for science funding could be how to optimize the scientific […]
Humanities & Social Sciences • Science • Technology • Weekly Selection
Ocean health imperiled thrice over Climate change and increases in oxygen-free “dead zones” and acidification each pose health concerns for the world’s oceans, with immediate action required, says a report from the International Programme on the State of the Ocean. BBC Bulk of Earth’s xenon concealed in planet’s core Earth’s atmosphere appears to have only […]
We needed a Big Bang to create lithium, now it seems that it is much easier to destroy. This light element is the center piece of one of the most intriguing astronomical controversies. Can we use the lithium to look for planet-hosting stars? Why is it depleted in older stars? Anyway, Lithium seems to be […]
A previous post presented the fascinating history of the brick factory problem, which wonders about the smallest possible number of rail crossings when connecting kilns and storage yards, which is mathematically modeled by the crossing number of the complete bipartite graph . Proposed by Paul Turán after the Second World War, the first advances on […]