pvalue art

For a brief moment in 2010, Matt Motyl was on the brink of scientific glory: he had discovered that extremists quite literally see the world in black and white.

The results were “plain as day”, recalls Motyl, a psychology PhD student at the University of Virginia in Charlottesville. Data from a study of nearly 2,000 people seemed to show that political moderates saw shades of grey more accurately than did either left-wing or right-wing extremists. “The hypothesis was sexy,” he says, “and the data provided clear support.” The P value, a common index for the strength of evidence, was 0.01 — usually interpreted as 'very significant'. Publication in a high-impact journal seemed within Motyl's grasp.


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Adapted from G. Aad et al., Phys. Rev. Lett. (2014)

We have no idea what dark matter is. Most attempts to unravel the mystery entail trying to directly detect primordial dark matter particles as they stream by Earth. But it is, in principle, possible to produce dark matter particles in colliders. Until now, bounds from direct detection have been stronger than such collider searches. Now, the ATLAS collaboration at the LHC reports in Physical Review Letters that it has used the absence of a certain type of such collider production to place the strongest constraints yet on some models of dark matter.

If dark matter consists of weakly interacting massive particles (WIMPs), which couple to protons and

The following ORDER N27 has been issued by the director of A. Alikhanyan National Laboratory (Yerevan Physics Institute) to insure sustained electron synchrotron operation for competitive research programs in future.

Инженеры осматривают прибывшее зеркало
Инженеры осматривают прибывшее зеркало
Фото: NASA

Инженеры NASA получили последние три сегмента составного зеркала для космической обсерватории «Джеймс Уэбб». Запустить ее в космос планируется в 2018 году, и она заменит собой «Хаббл», который к тому моменту сойдет с орбиты. Подробности приводит официальный сайт аэрокосмического агентства.