Optical Microscopy Laboratory at NHMFL

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					Optical Microscopy Laboratory
          at NHMFL
       Tallahassee, Florida




        Soon Young Kim
      Moanalua High School
        Honolulu, Hawaii
Outline
•   Molecular Expressions Lab
•   Concept of Interactive Java Tutorial
•   Why I wanted to work with it
•   My Interactive Java Tutorial Project
•   What comes next?
    Mentor




Michael Davidson
 Molecular Expressions Lab
• Currently focused on education of
  scientific investigators and scientific
  community
• Support from FSU Research
  Foundation and corporate partnerships
  such as Nikon and Olympus
• Create explanatory web articles and
  interactive tutorials to better educate
  the scientific community in microscopic
  and imaging techniques
Biotechnology and Biological Imaging

• Fluorescence microscopy using
  widefield fluorescence
• Laser Scanning Confocal microscopes
• Polarized microscopy
• High-sensitivity CCD cameras
• Time-lapse live-cell systems
What is the Concept of
Interactive Java Tutorial?
• To help reader explore complex concepts
• Animation and written description
• Controlled by reader to make changes
Examples
• Charging and Discharging a Capacitor *
• Lightning: An Example of Natural Capacitor *
• How a Transformer Works *
http://micro.magnet.fsu.edu/electromag/java/index.html
Why I want to work with
Interactive Java Tutorial
• Excellent for my students
  – Great Animation
  – Short Explanation
  – Students may visit on their own time
• Great for anyone with internet access
• No need for equipments
• Virtual self-learning classroom
How We Learn...
(Les Giblin, p. 22)


         •   1% through TASTE
         •   1.5% through TOUCH
         •   3.5% through SMELL
         •   11% through HEARING
         •   83% through SIGHT
What I have done so far…
• Curie Temperature for Ferromagnetism
  – Property of all magnetic materials
  – A constant temperature for the material
  – Material exceeding this temperature will lose
    its magnetic properties
  – Temperature drop below Curie temperature
    then the material will regain its magnetic
    property
     Curie Temperature
         b)




a)




c)
                                Curie
        Material            Temperature (K)
          Fe                    1043
          Co                    1388
           Ni                    627
           Gd                    293
           Dy                     85
         CrBr3                    37
        Au2MnAl                  200
        Cu2MnAl                  630
        Cu2MnIn                  500
          EuO                     77
d) http://hyperphysics.phy-astr.gsu.edu/hbase/tables/curie.html
Eddy Current
• Electric currents induced in a conductor
  by the movement of a magnetic field,
  which triggers a flow of electrons within
  the conductive material
• name reflects the fact that they are
  produced in small swirls, or eddies
• create magnetic fields within the
  conductor that oppose the change in flux

• Eddy Current Swing in Java Tutorial *
• Eddy Current Train in Java Tutorial *
Eddy Current
• Cooling copper
  bar in liquid
  nitrogen lower
  the resistance
  in the bar and
  create higher
  eddy current

 http://demo.physics.uiuc.edu/LectDemo/scripts/demo_descript.idc?DemoID=1192
Another Eddy Current Tutorial

•   Magnets in Eddy Tubes *
•   Plax Glass tube
•   Copper tube
•   Copper tube with a slit
•   Copper tube cooled in liquid Nitrogen
Paramagnetism of Liquid Oxygen
• Liquid Oxygen poured
  between magnet will
  be attracted to it
• due to unpaired
  electrons in its
  outermost energy level

              http://www.kyantec.com/Tips/LiquifyingOxygen.htm
Polar vs. Nonpolar compounds
• Charge a rubber and/or glass rod
  with silk or fur
• Hold the rod next to the streams
  of burets
• Nonpolar compounds
• Polar compounds
Java Tutorials in Progress
   •   Doorbell
   •   Eddy Current Swing
   •   Electric Guitar
   •   Faraday3
   •   Flashlight
   •   Inductive pendulum
   •   Paradiamagnetic
   •   Radio Mesh
   •   Resistance
   •   Soldering iron
   •   Van de Graaff bubbles
   •   Vertical transformer
   •   Water deflection *
Java Tutorials in Progress
 •   Color TV and Magnetism
 •   Kelvin’s Water Dropper
 •   Laser Printers
 •   Lifting Weight with a Capacitor
 •   Magnets Through Hand
 •   3D Magnetic field in a Bottle
 •   Magnetic Induction
 •   Paramagnetism of Liquid Oxygen
 •   Ping Pong Balls
 •   Polar vs. Nonpolar Compounds
 •   Van de Graaff and Candle
 •   Van de Graaff and Cigar
 •   Wheatstone Bridge
 What Comes Next?
• Students visit Interactive Java Tutorial
  website on their own
  – Develop lesson plan based on the website
  – Assist students in their own experiments
• Keep in touch with mentor and team
  – Any updates and modification
  – New materials to add
  – Expand beyond Electricity and Magnetism
• Check it out!
   – micro.magnet.fsu.edu/electromag
    References
•       Interactive Java Tutorials
    –      http://micro.magnet.fsu.edu/
    –      http://java.magnet.fsu.edu/electromag1/
•       Curie Temperature
    a)     http://www.geol.binghamton.edu/faculty/barker/demos/demo13.html
    b)     http://www.physics.purdue.edu/reports/demo/elect/El-78.1.html
    c)     http://www9.dw-world.de/rtc/infotheque/electronic_components/inductors.html
    d)     http://hyperphysics.phy-astr.gsu.edu/hbase/tables/curie.html
•       Eddy Current
    –      http://groups.physics.umn.edu/demo/electricity/5K2025.html
    –      http://demo.physics.uiuc.edu/LectDemo/scripts/demo_descript.idc?DemoID=1192
•       Paramagnetism of Liquid Oxygen
    –      http://demoroom.physics.ncsu.edu/html/demos/188.html
    –      http://www.kyantec.com/Tips/LiquifyingOxygen.htm
•       How We Learn…
    –      Giblin, Les. 1979. How to Be People Smart. ( HoHoKus, NJ: Les Giblin ), p. 22.
                Thank You! 
• Optical Microscopy Lab    • CIRL Staff
  –   Mike Davidson           –   Pat Dixon
  –   Matt Parry-Hill         –   Gina LaFrazza
  –   Shannon Neaves          –   Carlos Villa
  –   Eric Clark              –   Ryan Wilke
  –   Nathan Claxton          –   Stacy Vanderlaan
  –   Kristen Downs (REU)     –   Sarah Mullins
  –   Graphic Artists
       •   Richard Ludlow
       •   Lionel Parsons   • Electronics Shop
       •   Matt Boles         – Andy Powell
       •   Adam Rainey
       •   Matt Crane
        Thank You! 

• National High Magnetic Field Lab

• National Science Foundation
Questions?

				
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