摘要:
An educational monument, comprising a designated geographical area accessible to a general public, a first structure having a first face positioned to receive a solar light beam, an aperture formed through the first structure for projecting the light beam at predetermined times and, a second structure positioned to receive the light beam at a first predetermined time. A third structure positioned to receive the light beam at a second predetermined time. Wherein a transition of the light beam reflects a change in the seasons and an alignment of Earth illustrating a physical representation of the transition at a plurality of successive predetermined times, each respective predetermined time being the same hour on a different day. Wherein a plurality of ellipses are scaled from the receiving wall, accurately representing the scaled orbit of the planets.
摘要:
An automatic rotating decoration includes a rotating body, a support, a driving device connecting the support, and a transmission member connecting the driving device and the rotating body. The support, the driving device and the transmission member all are received in the rotating body. An opening is defined in the rotating body. The support is exposed to the opening. The driving device includes a driving body and an output shaft extending from the driving body. The driving body includes a motor body and a battery seat electrically connecting the motor body. The automatic rotating decoration of the present invention may automatically rotate around the support on another object without additional housing thereby simplifying the structure of the automatic rotating decoration, increasing fun of the automatic rotating decoration and facilitating the handling.
摘要:
A spherical world globe with geographic features imprinted on its surface rotates on an axis through the poles. The sphere is not large enough to carry legible details of all areas. Greater details are stored in a memory such as a compact disc. An indicator on the sphere is positionable north and south or the sphere is positionable relative to a fixed indicator to position the indicator along a north/south meridian. A sensor senses the north/south position of the indicator and sends a signal to a control circuit connected to the memory. Another sensor connected to the rotation of the sphere sends an east/west signal to the control circuit. Using the two signals, the circuit finds the area corresponding to the area selected on the sphere in the memory and displays it on a display in greater detail than is visible on the sphere.
摘要:
A process for the reproduction of a starlit sky involves accompanying stars and other space bodies with acoustical tones corresponding to their optical images. Particularly individual spectral classes of the stars will each be assigned to an octave of music. The invention also includes combining a device with a telescope for providing acoustical reproduction of respectively observed stars and space bodies.
摘要:
An apparatus is disclosed for demonstrating the movement of heavenly objects as they pass through the universe. The path a heavenly object follows is depicted three dimensionally by means of a hollow transparent tube molded in the shape of the path and containing a fluid supporting a floating sphere representing the heavenly object. By changing the fluid level in the tube the movement of the heavenly object through the universe is demonstrated.
摘要:
A planetarium moon projector of the direct casting type includes two alternatively interchangeable occulting elements which rotate at twice the period of moon phasing to intercept the projected light beam and effect the waxing and waning of the moon, and which are conically shaped with the same convergent angle as the projected convergent light and with an occulting relief angle. Two intermittent gears revolve integrally with the occulting elements and there is provided a fixed cylindrical rail with a rack, which keeps contact with the intermittent gears, and which interchanges the occulting elements when the intermittent gears are engaged with the rack. An eccentric drive coupling is provided to correct the dislocation of the moon phase caused by the occulting relief angle.
摘要:
Apparatus comprising a moon projector including an element for changing the phase of the moon, a gear system for transmitting a drive force to the moon phase changing element, a drive system for annual motion, a drive system for independently changing the phase of the moon provided independently of the annual motion drive system, differential gear means for selectively transmitting the operation of the annual motion drive system or of the drive system for independently changing the moon phase to the drive force transmitting gear system, and switching means for selectively operating the annual motion drive system or the drive system for independently changing the moon phase, whereby changes in the lunar phase as related to annual motion or changes in the lunar phase independent thereof can be selectively projected without impairing the continuous changing mode of the lunar phase.
摘要:
The provision of a planetarium projector provided with a nearpoint light source for the projection of the star images and including means for mounting, and maintaining, a star projection sphere concentric with the underside of a hemispherical dome within which the projector means is operatively positioned, to provide a highly realistic, accurate reproduction of the heavens as they appear from a given observation point upon the surface of the earth. The planetarium projector means also includes optical projection means for the sun, moon and planets which includes means for eliminating parallax from these projectors due to their somewhat non-concentric placement relative to the projection dome. Still further, the utilization of a point light source provided with means for decreasing the intensity of the lamp toward that portion thereof responsible for the projection of the fixed star images in the equatorial regions of the projection dome provides a unique method of presenting a planetarium display characterized by a high degree of realism in the projected night sky.
摘要:
A planetarium for projecting celestial objects includes control means which is connected to a magnetic tape recorder. A description of a celestial display is normally recorded on the magnetic tape through the recorder and alternatively or in conjunction therewith information can be recorded on photographic slides. As the persons in attendance listen to the voice description of the display from the magnetic tape recorder, a second track on said tape provides control signals to automatically turn off certain of the planetarium lamps. The control signals further act to turn on and turn off motors which move the lamps, thereby simulating the movement of the celestial bodies as they are being described by the voice from the tape recorder. At the same time, switches can be operated to cause a library of slides to be shown from a projector if it is deemed appropriate to have such slides shown during the recorded lecture.
摘要:
A PROJECTOR FOR THE STEREOSCOPIC REPRESENTATION OF REVOLVING BODIES OF ROTATION, IN WHICH A CONTINUOUSLY MOVING TAPE CARRYING A PICTURE OF THE BODY OF ROTATION MADE IN ACCORDANCE WTH MERCATOR''S PROJECTION IS CAUSED TO MOVE IN A PICTURE PLANE BEHIND A PROJECTION OBJECTIVE PRODUCING A STRONG PIN-CUSHION DISTORTING. THE CONVEYING
MECHANISM FOR THE PICTURE TAPE IS ROTATED WITH THE MOVING TAPE ABOUT THE OPTICAL AXIS OF SAID PROJECTION OBJECTIVE.