| DCS # | DEMONSTRATION | REFERENCE | ABSTRACT |
|---|
| 1D55.00 | Centrifugal Escape | | |
| 1D55.10 | broken ring | PIRA 500 | |
| 1D55.10 | broken ring | 1D55.10 | A ball is rolled around the inside of a large open metal hoop. Students predict where the ball will go when it reaches the opening. |
| 1D55.10 | circle with gap | Disc 05-14 | Roll a ball around a circular hoop with a gap. |
| 1D55.11 | the big omega | PIRA 1000 | |
| 1D55.11 | the big omega | 1D55.11 | A large wood circle with a gap is used with a bocce ball. |
| 1D55.15 | release ball on a string | PIRA 500 | |
| 1D55.15 | cut the string | M-137 | Cut the string while swinging a ball overhead. |
| 1D55.16 | slingshot | Mb-31a | A David and Goliath type slingshot. |
| 1D55.20 | grinding wheel | PIRA 1000 | |
| 1D55.20 | grinding wheel | 1D55.20 | Watch the path of sparks flying off a grinding wheel. |
| 1D55.20 | grinding wheel | Mb-31b | Show the sparks coming off a grinding wheel. |
| 1D55.20 | grinding wheel | 7-2.2 | Sparks fly off a grinding wheel. |
| 1D55.23 | spinning disc with water | PIRA 1000 | |
| 1D55.23 | spinning disc with water | Disc 05-16 | Red drops fly off a spinning disc leaving traces tangent to the disc. |
| 1D55.30 | falling off the merry-go-round | PIRA 1000 | |
| 1D55.30 | falling off the merry-go-round | 1D55.30 | Large turntable with different surfaces. |
| 1D55.30 | falling off the merry-go-round | Mm-6 | A turntable is rotated until objects slide or tip over. |
| 1D55.30 | rotating disc with erasers | Disc 05-15 | Place erasers on a disc at various radii and rotate until they fly off. |
| 1D55.31 | falling off the merry-go-round | 1D55.31 | Line up quarters radially on a rotating platform and spin at varying rates. |
| 1D55.33 | train wrecks | TPT 28(9),586 | Pictures of train wrecks at curves and some calculations. |
| 1D55.50 | air pump | M-151 | Three mutually perpendicular discs are rotated about the intersection of two and air is drawn in the poles and expelled at the equator. |