The French artist, astronomer and amateur entomologist Étienne Léopold Trouvelot is noted for two major contributions in his lifetime. The first, and the one we are celebrating in this post, is the 7000 or so illustrations he created from his astronomical observations, the quality of which reached their zenith in the 15 exquisite pastel works which were published as The Trouvelot Astronomical Drawings in 1882 (and reproduced in this post). Trouvelot was invited onto the staff of the Harvard College Observatory when the then director Joseph Winlock saw the quality of his illustrations, and in 1875 he was invited to use the U. S. Naval Observatory’s 26-inch refractor for a year. As well as his illustrations, Trouvelot also published some 50 scientific papers, and was credited with discovering “veiled spots” on the Sun in 1875.
Stop breadboarding and soldering – start making immediately! Adafruit’s Circuit Playground is jam-packed with LEDs, sensors, buttons, alligator clip pads and more. Build projects with Circuit Playground in a few minutes with the drag-and-drop MakeCode programming site, learn computer science using the CS Discoveries class on code.org, jump into CircuitPython to learn Python and hardware together, or even use Arduino IDE. Circuit Playground Express is the newest and best Circuit Playground board, with support for MakeCode, CircuitPython, and Arduino. It has a powerful processor, 10 NeoPixels, mini speaker, InfraRed receive and transmit, two buttons, a switch, 14 alligator clip pads, and lots of sensors: capacitive touch, IR proximity, temperature, light, motion and sound. A whole wide world of electronics and coding is waiting for you, and it fits in the palm of your hand.
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