The Sun Dagger: How Ancient Puebloans Made Calendars from Sunlight

The Sun Dagger: How Ancient Puebloans Made Calendars from Sunlight

Before cal­en­dars were print­ed, before clocks ticked, and before num­bers were writ­ten, humans looked up. We looked up at the sky not just to admire the beau­ty of the stars and celes­tial bod­ies, but also to pre­dict the best times for plant­i­ng and har­vest­ing crops. So stargaz­ing was not just an enjoy­able endeav­or; it was a method of sur­vival. In

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FLASHCARD FRIDAYS: Charles Darwin, the lost boy

FLASHCARD FRIDAYS: Charles Darwin, the lost boy

It’s FLASHCARDS FRIDAY at Math! Sci­ence! His­to­ry! and I’m Gabrielle Bir­chak. I have a back­ground in math sci­ence and jour­nal­ism. It’s offi­cial­ly sum­mer. Some pro­fes­sors are on break. And if you’re not in acad­e­mia you are like­ly plan­ning your vaca­tions or sum­mer activ­i­ties. So, this sum­mer Math! Sci­ence! His­to­ry! is going to have a spe­cial vaca­tion series, because it’s nice

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