OSA E-Day 2008: Liquid Crystal Mood Patch

Explanation of how liquid crystals work, like in mood rings and mood patches. Demonstration of how to make a mood patch thermometer using overhead transparencies, packing tape, black spray paint, and cholesteric liquid crystals (a 50:50 mixture of cholesteryl pelargonate, CP, and cholesteryl oleyl carbonate, COC). Examples of every-day products that use CLCs.

Presentation by Anne Marino, Optimax Systems, Inc., www.OptimaxSI.com, and Steve Jacobs and colleagues, Laboratory for Laser Energetics (LLE), University of Rochester, www.lle.rochester.edu. Video courtesy of Optimax Systems, Inc., www.OptimaxSI.com.

Category:

Education

Tags:

• optics
• photonics
• physics
• science
• experiment
• light
• lesson
• demo
• demonstration
• teacher
• student
• outreach
• cholesteric
• liquid
• crystal
• mood
• patch
• ring
• thermometer
• body
• temperature

[Onewitnessus]

what I need is to find out how to make my own mood stones can't seem to buy them in raw form they are all mounted in rings, jewelry etc. I just need the raw stones

[OSAEDay2008]

@Onewitnessus Sorry, don't know anything about commercially-available mood stones or jewelry. Maybe ask at Claire's? Or maybe you could find inexpensive jewelry and take out the mood rings somehow. Good luck.

[OSAEDay2008]

@tannerfeemster: Sorry, I can't help you. Not even sure what a "boogie board writing tablet" is! Good luck.

[lakakid]

AWSOME!!!!!!!



[tannerfeemster]

I want to make one of those "boogie board" writing tablets because they cost too much and I think you need liquid crystal? I need help!!!

[darshan2good]

this is very good well explained on how to make a thermometer , cholesteryl pelargonate - cholesteryl oleyl carbonate , where can you get these substances, good presentation thanks OSAEDay2008

[kittensmeowing]

This is AWESOME!!! I am definately doing this project for my science fair!!!