Here is Bernard H. Porter’s 1939 map of Physics as a continent. via The Quantum Pontiff:
Thomas B. Greenslade, emeritus physics professor at Kenyon College in Gambier, Ohio, USA, has amassed (both physically and virtually) a fascinating and expertly curated collection of old physics teaching equipment. Among my favorite items are Bernard H. Porter’s 1939 map depicting Physics as a continent, with rivers corresponding to its principal branches.
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.