Adafruit Holiday Shipping Deadlines 2018: Attention! Place all UPS 3 Day orders by 11am ET Thursday 12/13/2018
0

How Does Foucault’s Pendulum Prove the Earth Rotates? #MakerEducation

Foucault2

Via SmithsonianMagazine.

On February 3, 1851, a 32-year-old Frenchman—who’d dropped out of medical school and dabbled in photography—definitively demonstrated that the Earth indeed rotated, surprising the Parisian scientific establishment.

Acting on a hunch, Léon Foucault had determined that he could use a pendulum to illustrate the effect of the Earth’s movement. He called together a group of scientists, enticing them with a note declaring, “You are invited to see the Earth turn.” Foucault hung a pendulum from the ceiling of the Meridian Room of the Paris Observatory. As it swept through the air, it traced a pattern that effectively proved the world was spinning about an axis.

A month later, Foucault shared his experiment with all of Paris at the majestic Pantheon building. According to the American Physical Society, he suspended from the Pantheon’s lofty dome a 61-pound brass bob on a 220-foot cable. As it swung back and forth, the pointed end of the bob traced lines in sand that had been poured on a wooden platform. Over time, the angle of these lines changed, suggesting to audience members that the direction of the pendulum’s travel was shifting under the influence of an unperceived rotational motion—that of Earth.

Read more.


Adafruit_Learning_SystemEach Tuesday is EducationTuesday here at Adafruit! Be sure to check out our posts about educators and all things STEM. Adafruit supports our educators and loves to spread the good word about educational STEM innovations!


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.

Join 9,200+ makers on Adafruit’s Discord channels and be part of the community! http://adafru.it/discord

CircuitPython – Python on Microcontrollers is here!

Have an amazing project to share? Join the SHOW-AND-TELL every Wednesday night at 7:30pm ET on Google+ Hangouts.

Join us every Wednesday night at 8pm ET for Ask an Engineer!

Follow Adafruit on Instagram for top secret new products, behinds the scenes and more https://www.instagram.com/adafruit/


Maker Business — Japanese word working and more in December’s issue of HackSpace magazine!

Wearables — Solder-less magic

Electronics — = != ==.

Biohacking — Finding Bliss with Anandamide

Python for Microcontrollers — sysfs is dead! long live libgpiod! libgpiod for linux & Python running hardware @circuitpython @micropython @ThePSF #Python @Adafruit #Adafruit

Get the only spam-free daily newsletter about wearables, running a "maker business", electronic tips and more! Subscribe at AdafruitDaily.com !



No Comments

No comments yet.

Sorry, the comment form is closed at this time.