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Readers Respond to the September 2021 Issue

Readers Respond to the September 2021 Issue

Readers Respond to the September 2021 Issue Scientific American ZERO-SUM SPACE? In “Lifting the Venus Curse,” Robin George Andrews writes about discoveries that expand our understanding of our close planetary neighbor Venus. Enormous sums of money are tossed about in that quest as if they were almost insubstantial. But explorations of outer space…

Readers Respond to the August 2021 Issue

Readers Respond to the August 2021 Issue

Readers Respond to the August 2021 Issue Scientific American BROWN DWARFS In “Not Quite Stars,” by Katelyn Allers, the diagram “A Guide to Brown Dwarfs” states that these objects are “at least” 13 Jupiter masses. Yet it shows one brown dwarf that is eight Jupiter masses and another that is between three and…

Readers Respond to the July 2021 Issue

Readers Respond to the July 2021 Issue

Readers Respond to the July 2021 Issue Scientific American SEQUESTERING CO2 IN ROCKS “The Carbon Rocks of Oman,” by Douglas Fox, described efforts by geologist Peter Kelemen and other scientists to potentially sequester carbon dioxide in mantle rock formations. As a physical chemist who picked up the rudiments of geology and geochemistry during…

Readers Respond to the June 2021 Issue

Readers Respond to the June 2021 Issue

Readers Respond to the June 2021 Issue Scientific American SUSTAINABLE COMMUNITIES Ashish Kothari’s “A Tapestry of Alternatives” explores ways of living around the world that offer inspirations for sustainability. The article is hopeful and enlightening, but Kothari may wish to consider the value of self-defense. Inevitably, in the “tapestry of alternatives” that he…

Readers Respond to the May 2021 Issue

Readers Respond to the May 2021 Issue

Readers Respond to the May 2021 Issue Scientific American ANCIENT HUMAN CONTACT “Journey into the Americas,” by Jennifer Raff, describes how DNA evidence has revealed a more complex picture of the peopling of the American continents. I have always wondered whether the Polynesians who got as far east as Easter Island could have…

Activision Blizzard execs respond to harassment and discrimination lawsuit | Engadget

Activision Blizzard execs respond to harassment and discrimination lawsuit | Engadget Kris Holt The California Department of Fair Employment and Housing (DFEH) filed a lawsuit against Activision Blizzard this week over alleged sexual harassment and discrimination against women. In a memo to staff obtained by Bloomberg reporter Jason Schreier, Blizzard Entertainment president J. Allen Brack…

Readers Respond to the February 2021 Issue

Readers Respond to the February 2021 Issue

Readers Respond to the February 2021 Issue Scientific American UNIVERSE EXPANDER “Cosmic Conundrum,” by Clara Moskowitz, describes how the most likely cause of the accelerating expansion of the universe is “vacuum energy,” the effect of virtual particles popping in and out of existence. But it does not explain why vacuum energy would cause…

Readers Respond to the January 2021 Issue

Readers Respond to the January 2021 Issue

Readers Respond to the January 2021 Issue Scientific American BIG OLD GALAXIES Arianna S. Long’s “Too Big for the Universe” describes ancient galaxy clusters that are surprisingly massive for their early age. Could this observation be related to how supermassive black holes in the centers of some galaxies have grown so big so…

Readers Respond to the December 2020 Issue

Readers Respond to the December 2020 Issue

Readers Respond to the December 2020 Issue Scientific American LEGACY OF LAUGHTER Everyone is hoping that 2021 proves to be a better year than 2020. But some of the most depressing news I’ve seen was Steve Mirsky’s announcement of the end of his Anti Gravity column in “The Real Deal.” In my opinion,…

Readers Respond to the November 2020 Issue

Readers Respond to the November 2020 Issue

Readers Respond to the November 2020 Issue Scientific American FORGOTTEN TRAGEDY I read “The Pandemic We Forgot,” Scott Hershberger’s article on the 1918 influenza pandemic, and noted your call for stories at the end of the online version about ancestors who experienced it. Among the 675,000 people in the U.S. who…