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Posts Tagged ‘science’

Home School: The 500-year-old bones of African slaves tell a traumatic story via Ars Technica

May 23rd, 2020 Comments off

Archaeologists found the bones of three young African men in a 500-year-old mass grave in what is now Mexico City. The chemical makeup of their bones sheds light on their earlier lives in Africa, and forensic analysis reveals hard, painful lives and young deaths.

How the dead speak

Archaeologists unearthed the mass grave in 1992 while digging a new subway line in Mexico City. Five hundred years earlier, the site had been the grounds of the Hospital Real de San José de los Naturales. The Spanish colonizers had built the hospital to treat indigenous people—that’s what “los Naturales” means in Spanish—but these three men were African, not North or Central American. Their bones radiocarbon-dated to the 1500s CE, which makes them part of an important but often anonymous group of people: the first African people abducted in their homelands and brought across the Atlantic Ocean to European colonies in the Americas.

Read The 500-year-old bones of African slaves tell a traumatic story via Ars Technica


An interesting link found among my daily reading

States Are Reopening: See How Coronavirus Cases Rise or Fall via Articles and Investigations – ProPublica

May 20th, 2020 Comments off

ProPublica is a nonprofit newsroom that investigates abuses of power. Sign up to receive our biggest stories as soon as they’re published.

Many states are lifting stay-at-home orders and other restrictions on social and business activity that were put in place to curb the spread of COVID-19. Questions linger, however, about whether some states meet criteria set by public health experts and the federal government for doing so. Experts are keeping a close eye on whether states that have reopened are seeing an uptick in cases or a worsening in other key metrics.

To give people context on state reopenings, and what happens afterward, we are tracking metrics derived from a set of guidelines published by the White House for states to achieve before loosening restrictions. Even if these criteria are met, without a vaccine, reopening may cause an increase in cases. What’s more, some states may meet all of the criteria and still have a high infection rate.

Home School: Children’s Education Challenge Cards

April 8th, 2020 Comments off

Diver at the California Science Center via My Instagram

January 7th, 2019 Comments off

Cooper’s Hawk (Accipiter cooperii) – 1 in a series [Video]

June 21st, 2016 Comments off

Cooper’s Hawk (Accipiter cooperii) – 1 in a series

This Cooper’s Hawk (Accipiter cooperii) has become an almost daily visitor to the garden in the last few weeks, so I’ll be sharing a series of video clips of its behaviors for those interested in raptors.

In this video you can see the hawk spreading its wings when a squirrel on the ground approaches too closely. I have seen this behavior several times in the past. sometimes with the squirrel actively chasing off the hawk.

Cooper's Hawk (Accipiter cooperii) - 1 in a series

 

More information on Cooper’s Hawk (Accipiter cooper):