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Interactive video lesson plan for: The Engineering of a Disposable Diaper

Activity overview:

Bill reveals the stunning engineering underlying the design of a diaper. He describes the five layers of a diaper, including the superabsorbent polymer in the diaper's core. He illustrates the action of this polymer with a stunning demonstration using a single bead of polymer: it soaks up enough water to grow from a diameter of 4 mm to nearly a half inch.

You can bundle watch Bill's videos using this playlist:
https://www.youtube.com/playlist?list=PL0INsTTU1k2UO-2-AwomFmAs4nuZU9ht3
If you are interested in mechanical computers you'll likely enjoy his series on Albert Michelson's Harmonic Analyzer -- a 19th century machine that calculates Fourier transforms:
https://www.youtube.com/playlist?list=PL0INsTTU1k2UYO9Mck-i5HNqGNW5AeEwq

Creative Commons Images Used in Video
First cotton image is by dotlizard
https://www.flickr.com/photos/dotlizard/3629871635/in/photolist-6wL3nH-fJCtP7-fJkZp6-fJm2NF-fJCjAG-9rbWDz-fJkXaR-fJCpnq-fJChsW-fJCj3j-fJkYqv-fJkMFH-fJkKQX-fJCx81-9fbqAS-2t7dsV-fJkYD4-evCAQr-7Rvj3n-9jv7xw-fJkVtr-fJChL5-6wL3Pt-fJCiJS-a8NCNs-fJkM1i-83KHYS-7Zd86f-81FxpK-8RJew9-71gYqx-4udP27-6eTbUK-a8NP7h-6YVZZZ-dvsWpG-7fpXY7-bwuAiT-pajewh-p3KEYV-effXoi-dcgm8d-cmLp8j-74NMSZ-a8N2W5-evAizP-9Q4GZk-7vUdin-oLfTJy-72Bmcy

The cotton candy image is from Stefano Mortellaro
https://www.flickr.com/photos/fazen/7046055433/in/photolist-bJCSNn-6EqFUq-scFn8R-kgWY1-g7QoZ-dxRQPM-eee8g9-7Trb4U-AKUjg-91ex6a-6SbCJe-8uBSRj-4SJoSi-py7we-4yrDzi-nCkFi-5YQ7es-aoDwDH-71jQhR-fvLrWL-4UJWoT-btC63o-72SYjo-8uyPWz-4SNC91-nJBQmd-776pxp-aCEG6X-9sPSN7-5AZV1s-4aTwB-8jmZFT-4yvWfN-4qSkK-714Yu4-MyqRs-bAAmGK-cxG7L9-NJbXr-pxJ9zB-dkge4S-JcjEY-3bg2bB-8DVyJg-MyqzN-3eugRY-aqjzmR-e7DTDb-4yvWFw-asawee

Tagged under: diaper,disposable diaper,engineering,polymer science,Bill Hammack,Engineer Guy,University Illinois - Urbana,Chemical Engineering

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