Yo-Yos in Space!…
From Physics Central’s wonderful series “Science Off the Sphere,” astronaut and chemist Dr. Don Pettit walks the dog– among many other moves made even niftier in the absence of gravity.
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As we float like butterflies, we might send instructive birthday greetings to Maria Montessori; she was born on this date in 1870. A physician and educator, she developed a philosophy of education which bears her name— and which is in use today in public and private schools throughout the world.
