18 fevereiro 2018

Galaxy Formation in a Magnetic Universe


How did we get here? We know that we live on a planet orbiting a star orbiting a galaxy, but how did all of this form? To understand details better, astrophysicists upgraded the famous Illustris Simulation into IllustrisTNG -- now the most sophisticated computer model of how galaxies evolved in our universe. Specifically, this featured video tracks magnetic fields from the early universe (redshift 5) until today (redshift 0). Here blue represents relatively weak magnetic fields, while white depicts strong. These B fields are closely matched with galaxies and galaxy clusters. As the simulation begins, a virtual camera circles the virtual IllustrisTNG universe showing a young region -- 30-million light years across -- to be quite filamentary. Gravity causes galaxies to form and merge as the universe expands and evolves. At the end, the simulated IllustrisTNG universe is a good statistical match to our present real universe, although some interesting differences arise -- for example a discrepancy involving the power in radio waves emitted by rapidly moving charged particles.

from NASA http://ift.tt/2CuxNZz
via IFTTT
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In 1960, Herbert Hoover became the earliest-serving former...



In 1960, Herbert Hoover became the earliest-serving former president to be interviewed for television. Here’s the full video, if you are interested in watching!

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Great quote by E. O. Wilson author of “On Human...



Great quote by E. O. Wilson author of “On Human Nature,” a landmark text in the history of Evolutionary Psychology.

Visit –> www.all-about-psychology.com/evolutionary-psychology.html to learn all about evolutionary psychology.

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Dirty People, Not Rats and Fleas, May Have Been Why The Black Death Spread

A new study suggests that we should stop blaming rats for spreading the Black Plague. Instead, the findings suggest, we should look at ourselves. Dirty humans, not dirty rats, were the likely culprits in spreading the bubonic plague. Specifically, “ectoparasites,” such as body lice and fleas carried by people, are more likely to be the guilty party.

Using mortality data from nine plague outbreaks in Europe between the 1300s and 1800s, the teams in Norway and Italy tracked how pandemics developed. In seven of the cases there was a closer resemblance to the human model for outbreak spread compared with the alternatives. Which means that if humans were just a little cleaner, the plague would not have spread so easily, or killed so many.

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Visit –> http://ift.tt/1zcc5Xm...



Visit –> www.all-about-psychology.com/fritz-heider.html to read ‘An Experimental Study of Apparent Behavior,’ in full for free.

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