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  • The vacuum chamber setup to boil ice water in a vacuum.  Ice water is placed in a beaker and the air is removed in a vacuum chamber.  Then the air pressure is lower that the waters vapor pressure the liquid will boil.
    K12vac-boil-icewater001.JPG
  • Marshmallows are placed in a vacuum chamber and the air is removed.  As the air is removed the pressure drops causing the air trapped in the marshmallows to expand.  The trapped air expands to many the original volume and the marshmallows grows in size.  This image is part of a series taken at different vacuum pressures.
    K12vac-marshmallow005.JPG
  • Marshmallows are placed in a vacuum chamber and the air is removed.  As the air is removed the pressure drops causing the air trapped in the marshmallows to expand.  The trapped air expands to many the original volume and the marshmallows grows in size.  This image is part of a series taken at different vacuum pressures.
    K12vac-marshmallow001.JPG
  • Marshmallows are placed in a vacuum chamber and the air is removed.  As the air is removed the pressure drops causing the air trapped in the marshmallows to expand.  The trapped air expands to many the original volume and the marshmallows grows in size.  This image is part of a series taken at different vacuum pressures.
    K12vac-marshmallow007.JPG
  • Marshmallows are placed in a vacuum chamber and the air is removed.  As the air is removed the pressure drops causing the air trapped in the marshmallows to expand.  The trapped air expands to many the original volume and the marshmallows grows in size.  This image is part of a series taken at different vacuum pressures.
    K12vac-marshmallow002.JPG
  • Marshmallows are placed in a vacuum chamber and the air is removed.  As the air is removed the pressure drops causing the air trapped in the marshmallows to expand.  The trapped air expands to many the original volume and the marshmallows grows in size.  This image is part of a series taken at different vacuum pressures.
    K12vac-marshmallow003.JPG
  • A balloon is placed in a vacuum chamber and the air is removed.  As the air is removed the pressure drops causing the air trapped in the balloon to expand.  The trapped air expands to many the original volume and the balloon grows in size.  This image is part of a series taken at different vacuum pressures.
    K12vac-pink-balloon002.JPG
  • Marshmallows are placed in a vacuum chamber and the air is removed.  As the air is removed the pressure drops causing the air trapped in the marshmallows to expand.  The trapped air expands to many the original volume and the marshmallows grows in size.  This image is part of a series taken at different vacuum pressures.
    K12vac-marshmallow008.JPG
  • Marshmallows are placed in a vacuum chamber and the air is removed.  As the air is removed the pressure drops causing the air trapped in the marshmallows to expand.  The trapped air expands to many the original volume and the marshmallows grows in size.  This image is part of a series taken at different vacuum pressures.
    K12vac-marshmallow006.JPG
  • Marshmallows are placed in a vacuum chamber and the air is removed.  As the air is removed the pressure drops causing the air trapped in the marshmallows to expand.  The trapped air expands to many the original volume and the marshmallows grows in size.  This image is part of a series taken at different vacuum pressures.
    K12vac-marshmallow004.JPG
  • A balloon is placed in a vacuum chamber and the air is removed.  As the air is removed the pressure drops causing the air trapped in the balloon to expand.  The trapped air expands to many the original volume and the balloon grows in size.  This image is part of a series taken at different vacuum pressures.
    K12vac-pink-balloon001.JPG
  • Ice water is placed in a beaker and the air is removed in a vacuum chamber.  Then the air pressure is lower that the waters vapor pressure the liquid will boil.
    K12vac-boil-icewater004.JPG
  • Ice water is placed in a beaker and the air is removed in a vacuum chamber.  Then the air pressure is lower that the waters vapor pressure the liquid will boil.
    K12vac-boil-icewater002.JPG
  • An apple and a feather are released at the same time.  The feather that is falling in a vacuum chamber falls at the same rate as the apple in the air.  The feather and the apple have metal pins in them that are attracted to the strong magnets in the release mechanism that can be seen at the top of the image.  The flash is triggered at 1/20th of a second interval.  The apple and feather do accelerate at the same rate..The vacuum pressure was 30 microns.
    K12-gravity-apple001.JPG
  • An apple and a feather are released at the same time.  The feather that is falling in a vacuum chamber falls at the same rate as the apple in the air.  The feather and the apple have metal pins in them that are attracted to the strong magnets in the release mechanism that can be seen at the top of the image.  The flash is triggered at 1/20th of a second interval.  The apple and feather do accelerate at the same rate..The vacuum pressure was 30 microns.
    K12-gravity-apple004.JPG
  • The inside of a magnetron removed from a microwave oven.  The magnetron is a device that creates microwave radiation. A magnetron consists of an electron tube surrounded by a magnet. As electrons are released from the heated cathode they are forced to take a spiral path to the anode by the magnetic field, creating microwaves. This magnetron creates a microwave radiation that is the same frequency as a water molecule vibrates.  When water is exposed to just the right frequency, the water molecules will gain kinetic energy and become hotter.
    K11-magnetron7111.jpg
  • The inside of a magnetron removed from a microwave oven.  The magnetron is a device that creates microwave radiation. A magnetron consists of an electron tube surrounded by a magnet. As electrons are released from the heated cathode they are forced to take a spiral path to the anode by the magnetic field, creating microwaves. This magnetron creates a microwave radiation that is the same frequency as a water molecule vibrates.  When water is exposed to just the right frequency, the water molecules will gain kinetic energy and become hotter.
    K11-magnetron7101.jpg
  • X-ray of a thermos or vacuum flask. The internal chamber (red), and the liquid that it contains, is kept hot or cold by an insulating vacuum.  The vacuum is contained in an aluminum coated glass container.  The internal walls of the flask are coated with aluminum to reflect heat that is radiated away. Most of the heat will be gained or lost through the neck of the flask. .
    K11X-thermos1.jpg
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