| DCS # | DEMONSTRATION | REFERENCE | ABSTRACT |
|---|
| 6A20.00 | Reflection from Curved Surfaces | | |
| 6A20.10 | blackboard optics - curved mirrors | PIRA 1000 | |
| 6A20.10 | blackboard optics - concave mirror | Oc-1 | Blackboard optics - concave mirror. |
| 6A20.10 | blackboard optics - convex mirror | Oc-2 | Blackboard optics - convex mirror. |
| 6A20.10 | concave and convex mirrors | Disc 22-01 | Shine parallel beams at convex and concave mirrors. Use a thread screen for display. |
| 6A20.11 | optical disc with curved mirrors | PIRA 1000 | |
| 6A20.11 | optical disc with curved mirrors | 6A20.11 | Use the optical disc with multiple beams and curved lens elements. |
| 6A20.11 | optical disc - curved mirror | Oc-3 | Mount either concave or convex mirrors in the optical disc. |
| 6A20.11 | large optical disc | 34-1.18 | A large translucent screen and large lens elements scale up the Hartl optical disc. Diagrams. |
| 6A20.15 | parallel lasers and curved mirrors | PIRA 500 | |
| 6A20.15 | parallel lasers and curved mirrors | 6A20.15 | Shine parallel lasers at converging and diverging mirrors and use chalk dust to make the beams visible. |
| 6A20.20 | spherical abberation in a mirror | PIRA 1000 | |
| 6A20.20 | spherical abberation in a mirror | Disc 22-02 | Shine parallel rays at spherical and parabolic mirror elements, noting the difference in aberration. |
| 6A20.21 | off focal point source | AJP 36(11),1022 | A picture of the caustic formed by parallel laser rays incident on a parabolic mirror at 30 degrees. |
| 6A20.24 | concave mirrors - caustics | L-25 | Directions for making a large cylindrical or parabolic mirror element. |
| 6A20.26 | variable curved mirrors | AJP 35(6),534 | Aluminized
mylar stretched over a coffee can makes a variable positive or negative mirror
when the can is pressurized or evacuated. |
| 6A20.27 | elliptical tank | Ob-10 | A filament
lamp is placed at one focus of an elliptically shaped wall of shiny aluminum
and chalk dust shows the image at the other focus. |
| 6A20.28 | ellipsoidal mirror | L-26 | Compare the
light intensity from the lamps at the near and far focus of an ellipsoidal
mirror. Directions for making the mirror element. Diagram. |
| 6A20.30 | mirror & rose | PIRA 500 | |
| 6A20.30 | mirror & rose | 6A20.30 | |
| 6A20.30 | flower in a vase | Oc-10 | A hidden flower at the center of curvature of a parabolic mirror appears in an empty vase. |
| 6A20.30 | lamp in the socket | L-24 | A 40 W lamp is projected onto an empty socket. |
| 6A20.30 | mirror and rose | L-23 | Hints for projecting a real image (rose) on an object (vase). |
| 6A20.31 | cold candle | Oc-11 | Hold your finger in the inverted image of a candle burning at the center of curvature of a parabolic mirror. |
| 6A20.31 | large concave mirror | Disc 22-05 | Hold a candle and other objects at the center of curvature of a large convex mirror. |
| 6A20.35 | optic mirage | PIRA 1000 | |
| 6A20.35 | optic mirage | 6A20.35 | Same as Oc-7. |
| 6A20.35 | optic mirage | TPT 28(8),534 | Derivation of additional "magic separations" of the Optic Mirage that give images. |
| 6A20.35 | optic mirage | Oc-7 | Two concave mirrors face each other. Images of objects resting on the bottom mirror appear at the center hole of the top mirror. |
| 6A20.36 | shine an light on the Optic Mirage | AJP 46(3),297 | Shine a light on an shiny object in the Optic Mirage and the reflections will look real. |
| 6A20.37 | red ball in hemisphere | Oc-6 | Looking at a red ball pendulum suspended from the rim of a hemispherical concave mirror makes one puke. |
| 6A20.37 | swinging lamp and concave mirror | 34-1.3 | A lamp pendulum is swung between the center of curvature and the principle focus on a concave mirror. |
| 6A20.40 | projected arrow with mirror | PIRA 500 | |
| 6A20.40 | projected arrow with mirror | 6A20.40 | A converging mirror is used to project an image of an illuminated arrow onto a screen. |
| 6A20.40 | image with a concave mirror | Oc-4 | A concave mirror is used to image a lamp filament on a screen or the wall. |
| 6A20.41 | projected filament with mirror | PIRA 1000 | |
| 6A20.41 | projected filament with mirror | 6A20.41 | A
converging mirror is used to project the image of a light bulb filament onto
a screen. Masks can be used to stop down the mirror. |
| 6A20.42 | rotating liquid mirror | AJP 58(3),280 | Rotate
a pan of glycerine mixed with dark dye, using a lighted object as a source
and ground glass screen or TV camera as a detector. |
| 6A20.45 | convex and concave mirrors | PIRA 500 | |
| 6A20.45 | no image with convex mirror | Oc-8 | Try to project the image of a filament from a convex mirror. |
| 6A20.45 | convex and concave mirrors | O-1f | Large 16" convex and concave mirrors are shown. |
| 6A20.45 | concave and convex mirror | O-1e | Project a lamp image with a concave mirror, then try convex. |
| 6A20.50 | amusement park mirrors | Oc-5 | Cylindrical mirrors are made with ten inch radius of curvature. |
| 6A20.51 | convex mirror | L-27 | View the image of your nose in a 1/2" diameter steel ball through a short focal length lens. |
| 6A20.60 | energy at a focal point | PIRA 1000 | |
| 6A20.60 | lighting a cigarette | Oc-9 | Light a cigarette at the focal point of a parabolic mirror concentrating the beam of an arc light. |
| 6A20.60 | energy at a focal point | Disc 22-03 | Remove the projection head of an overhead projector and hold a piece of paper at the focal point until it bursts into flame. |