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.
Make a robot friend with Adafruit’s CRICKIT – A Creative Robotics & Interactive Construction Kit. It’s an add-on to our popular Circuit Playground Express, FEATHER and other platforms to make and program robots with CircuitPython, MakeCode, and Arduino. Start controlling motors, servos, solenoids. You also get signal pins, capacitive touch sensors, a NeoPixel driver and amplified speaker output. It complements & extends your boards so you can still use all the goodies on the microcontroller, now you have a robotics playground as well.
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