The discussion centers around the website inspired by the short film "Powers of Ten," which explores the vastness of the universe and the microscopic world through a zooming effect. Users appreciate the concept of getting lost in the scale of both large and small dimensions. The original film begins with a close-up of a sleeping man's hand and progressively zooms out to cosmic scales, then reverses to zoom in on subatomic particles. Participants express enthusiasm for such visual explorations and mention similar educational materials from their past. Overall, the website is recognized for its engaging representation of scientific concepts.
It has the same basic idea as the website, except it started out looking at a sleeping man's hand in a park in Chicago. It then zoomed out one power of ten every ten seconds all the way out to the galactic strings. It then turned around and zoomed back in at one power of ten per second until it was looking at the guys hand again. Once there, it zoomed in all the way down to protons/quarks at one power of ten/ten seconds.
Chagas disease, long considered only a threat abroad, is established in California and the Southern U.S.
According to articles in the Los Angeles Times, "Chagas disease, long considered only a threat abroad, is established in California and the Southern U.S.", and "Kissing bugs bring deadly disease to California". LA Times requires a subscription.
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I just read about a pandemic of "sleeping sickness" aka Encephalitis lethargica from 1915 to 1926; cause unknown!
https://en.wikipedia.org/wiki/Encephalitis_lethargica
Encephalitis lethargica is characterized by high fever, sore throat, headache, lethargy, double vision, delayed physical and mental response, sleep inversion and catatonia.
I am reading Nicholas Wade's book A Troublesome Inheritance. Please let's not make this thread a critique about the merits or demerits of the book. This thread is my attempt to understanding the evidence that Natural Selection in the human genome was recent and regional.
On Page 103 of A Troublesome Inheritance, Wade writes the following: "The regional nature of selection was first made evident in a genomewide scan undertaken by Jonathan Pritchard, a population geneticist at the...