Learn the history behind the stethoscope with this video lesson by Jessica Oreck at TED-Ed.
The stethoscope is the single most widely used medical instrument in the world. But where did the idea come from? In the seventh installment of our ‘Moments of Vision’ series, Jessica Oreck shares the modest origins of this incredibly useful item.
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.