0

The History of the ICEE

NewImage

Fun and interesting read from Smithsonian Mag:

he sent away for bottles of soda and plunged them into the frosty depths of his freezer to chill for his thirsty customers. When he popped the lids, the sodas instantly turned slushy, says Phil Knedlik, one of Omar’s two sons.

Though it sounds like a party trick, this actually involves some flashy chemistry. There are likely a few factors at work here, but one of the most important is the formation of what is known as a supercooled liquid. This means, that the drink is actually colder than the point at which the solution transforms into ice—but not frozen yet.

This can happen because for ice to form, it needs somewhere to start—a rough spot in the glass or even a flake of dust. Without it, the water just keeps chilling. When you open a bottle of supercooled soda, the bubbles of carbon dioxide begin to fizzle out, providing plenty of surfaces for ice to form, creating a refreshingly light and slushy beverage. Try it for yourself.

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 8,500+ 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 — Rethink Robotics closes shop. Long live collaborative robots #makerbusiness

Wearables — Cleaning is key

Electronics — Serial overkill

Biohacking — Biohacking Resources – Books, Talks and Podcasts

Python for Microcontrollers — CircuitPython @ Hackaday SuperCon #ICYMI @circuitpython @micropython @ThePSF #Python

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.