0

The Science Behind Tornadoes

NewImage

Great read from National Geographic discussing tornadoes:

The most intense tornadoes spawn from supercells, massive thunderstorms with rotating hearts called mesocyclones. For a supercell to form, the skies “need the ingredients for a regular thunderstorm,” says Harold Brooks, a research meteorologist with the National Oceanic and Atmospheric Administration‘s (NOAA) National Severe Storms Laboratory (NSSL) in Norman, Oklahoma.

Those ingredients include warm moisture near the surface and relatively cold, dry air above. But supercells require winds that increase in strength and change direction with height, generating horizontal tubes of rotating air parallel to the earth’s surface.

Warm air below a horizontal vortex rises “like a hot-air balloon,” says Brooks, and bends it into an arch. One of the two vertical vortices forming the arch then peters out. Shearing winds tilt the top of the surviving vortex, causing cool rain to fall away from the warm surface air fueling the newly born mesocyclone, letting the supercell purr like a finely tuned engine. (See an animation of how tornadoes form.)

Read more


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 12,000+ makers on Adafruit’s Discord channels and be part of the community! http://adafru.it/discord

CircuitPython 2019!

Have an amazing project to share? The Electronics Show and Tell with Google Hangouts On-Air is every Wednesday at 7:30pm ET! To join, head over to YouTube and check out the show’s live chat – we’ll post the link there.

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 — SiFive is a startup to pay attention to. RISC-5 is here to stay.

Wearables — Turn up the volume

Electronics — Code like everyone’s watching

Biohacking — Stroboscopic Visual Training

Python for Microcontrollers — CircuitPython takes flight! All aboard with datum, Bluefruit CPX, and more! #Python #Adafruit #CircuitPython #PythonHardware @circuitpython @micropython @ThePSF @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.