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7430038 |
Apparatus for enhancing visualization of mechanical stress
Photoelastic elements are formed deliberately with stress concentrations so that, when evaluated with a polariscope, more pronounced isochromatic bands or fringes result when loads are applied to...
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7338287 |
Systems and methods for searching for and delivering solutions to specific problems and problem types
Methods and systems for providing a solution to a given problem comprising the steps of receiving a request for a solution to a known problem, accessing a first set of data comprising a plurality...
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7266469 |
Method and article of manufacture for determining a rate of change of orientation of a plurality of fibers disposed in a fluid
A method and an article of manufacture for determining a rate of change of orientation of a plurality of fibers disposed in a fluid are provided. The method includes determining a first tensor...
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6957960 |
Method and apparatus kit for demonstrating archimedes' principle
A kit for demonstrating Archimedes' principle, comprising a tub having an overflow spout, such that when fluid reaches the overflow spout, all additional fluid added to the tub will flow out the...
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6821124 |
Laser frequency modulation tactical training system
A laser based tactical engagement simulation training system, and in particular a MILES type system, is characterized by an improved communication code structure for the system. The improved code...
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6773264 |
Teaching apparatus for mechanics principles
A mechanically propelled apparatus for teaching principles of mechanics. The apparatus includes a drive wheel disposed on a first axis of rotation and a power drum disposed on a second axis of...
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6722940 |
Torsion spring powered toy vehicle
Torsion Spring Powered Toy Vehicle comprised of a chassis, a torsion spring assembly attached to the top side of the chassis, the torsion spring assembly consisting of a flat plate having a pair of...
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6582234 |
Method for demonstrating the inverse square law and apparatus therefor
The invention is an educational demonstration designed to help students better understand the concepts of torque and the inverse square law. A variable torque pulley consists of a rigid overlapping...
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6561810 |
Method and apparatus for teaching children about fluid piping systems
An apparatus for teaching a child about basic fluid piping systems comprises a kit having a plurality of pipes and pipe fittings, and a media embodying element, all of which are packaged together...
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6547567 |
Bouncing ball apparatus
An apparatus has a ball that bounces vertically on a vibrating piston. The system demonstrates the complex dynamics impact systems for education and research in dynamical systems theory and...
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6478582 |
Free rotator demonstrator
A spherical free rotator, supported on an air film within an air support. Different weight and density inserts may be positioned within cylindrical holes along diameters by the sphere, so that both...
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6443736 |
Technology explorer model
An instrumented, adjustable, educational, structural model employs novel sensor housings and free-fall, pendulous, and cantilever-beam test objects made of stiff, hard, compressible material, for...
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6413100 |
System and methods for searching for and delivering solutions to specific problems and problem types
Methods and apparatus for providing a solution to a given problem comprising the steps of receiving a request for a solution to a known problem, accessing a first set of data comprising a plurality...
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6402521 |
Apparatus for demonstrating changes in motion with respect to time
An apparatus for demonstrating changes in motion with respect to time. Two arrays of equally spaced photoresistors and light-emitting diodes are placed on two parallel straight line arrays. Rails...
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6382982 |
Educational tool comprised of selectable optically-linked modules
The invention is a teaching tool, intended to elucidate the principles of light and its associated technologies. For several of the embodiments, the optics and components are embedded into sliding...
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6290505 |
Ballistic performance simulator
Rocket/Missile flight simulation requires the thrust-versus-time profile of a rocket motor conditioned to a specific temperature. The use of program, preferably carried in an Excel spreadsheet, is...
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6273727 |
Method and apparatus for calculating drug dosages and unit conversions and for teaching how to calculate drug dosages and unit conversions
A method and device for determining an appropriate drug dosage, unit conversions and a tutorial device for teaching how to determine a calculated drug dosage and/ unit conversions. The device...
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6213781 |
Educational game using selective light displacement to teach physical concepts
An educational game is disclosed which uses a series of illumination devices which are sequentially illuminated to illustrate to a user a velocity. The user selectively chooses the velocity at...
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6152741 |
Device for teaching electrostatic principles
The invention is a training device for illustrating electrostatic charges. The training device consists of a transparent tube that is capped at each end. Retained within the tube are a plurality of...
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6071165 |
Thermal-powered diving device
In accordance with the invention, a hollow, gas-containing diving body is disposed in a partially shaded transparent column partially-filled with a clear liquid. The diver is weighted for...
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6016978 |
Device for producing a stationary particle cloud in a space particularly at an underpressure
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6015296 |
Apparatus for generating nonlinear dynamic chaotic motion
An apparatus for generating nonlinear chaotic motion is presented. The apparatus presents a base from which extends a slidable rod that carries a plurality of ring magnets that are deflected by an...
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6012959 |
Thermal- powered rocking device
In accordance with the invention, a solar rocking device comprises a pair of chambers coupled by a conduit, which assembly is pivotally mounted on a horizontal axis. Liquid partially fills the...
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5975911 |
Mechanical oscilloscope
A device which directly displays a steady state sinusoidal wave by positioning a scrolling pattern of alternating stripes (40 and 42) behind a flexible linear body comprising a vibrating rod (36)...
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5921781 |
3-dimensional models showing chemical point group symmetry
A three-dimensional instructional model used to exhibit and represent specific point groups used in the application of group theory to symmetry operations and molecular structure. A pair of blocks,...
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5915971 |
Tutorial device and method for determining drug dosages
A tutorial device and method for teaching and learning how to determine a calculated drug dosage and/or unit conversions. The device includes a data entry device for entering data; a device for...
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5876212 |
Apparatuses and kits for teaching mathematics
A method and apparatus of teaching mathematical problem solving includes using a series of containers, each consisting of an inherent problem requiring the use of mathematical skills for solution....
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5775917 |
Propeller-driven educational vehicle apparatus
A propeller-driven educational vehicle for teaching science, mathematics, technology, and research methodology. The educational vehicle includes a body, one pair of wheels at the front end of the...
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5772444 |
Method and article for teaching the core construction of the singularity motion
The invention comprises an article useful in teaching the core construction of the Yin and Yang symbol, as well as various scientific theories. The invention includes a template mechanism useful in...
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5720618 |
Vacuum teaching device
The present invention relates to a vacuum teaching device (10) comprising: a housing (12) which comprises a housing top (12A) having a housing top opening (12AA) therein, a housing bottom (12B) and...
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5273436 |
Changeable grid system kit
A changeable grid system kit for constructing three-dimensional toy and scale model designs, including a base component fabricated of a tough, resilient material, slots formed in the top face of...
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5256071 |
Multiple-collision accelerator assembly
A device comprising several highly elastic objects is presented whose purpose is to demonstrate an unobvious consequence of fundamental laws of physics--the acceleration of an object to high speed...
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5252552 |
Superconductive device and method for demonstrating autorotation
Apparatus and method are disclosed for demonstrating autorotation in conjunction with superconductivity. First and second discs constructed of superconductive materials are stacked one on top of...
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5192212 |
Flexible hypresurface orbital model
A hypersurface orbital model is presented that orbits a ball on a surface called a hypersurface. A stepper motor drive arrangement, with two-degrees of freedom, is used to change the hypersurface...
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5158462 |
Multiple-collision acceleration demonstrator and toy
A device comprising several highly elastic objects (for example, steel balls (14)) hanging from a support structure (12) is presented whose purpose is to demonstrate an unobvious consequence of...
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5145378 |
Pendulum principle demonstration apparatus
A base supports a vertical pivot arm, one end of which supports a pivotal rotation means for a rotation support housing with a plurality of radial connector sockets. One of several pendulum arms...
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5137487 |
Self-reversing symmetrical body
Disclosed is a self-reversing pendular-top formed as a symmetrical solid body of hard rigid material such as acrylic, the configuration being such that the center of gravity is oscillated relative...
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5049080 |
Waterwheel demonstrating apparatus
A chaos waterwheel teaching device is provided for demonstrating and illustrating to students that random appearing phenomena occurring in natural systems such as biological, chemical, physical,...
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5009602 |
Rotational movement training apparatus
The present invention relates to an improved rotational movement training device which includes a mounting board and a plurality of rotation devices which, when mounted on a mounting board, provide...
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4971562 |
Didactic device to aid in understanding and teaching about electromagnetic fields and their effects
According to principles of the invention, an educational device is provided for investigating and teaching about electromagnetic fields. The device includes a pair of toroid magnets each having a...
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4886459 |
Precision controlled cartesian diver
A closed fluid containing device wherein precise and reversible controlled pressure is applied to a contained fluid and to a freely enclosed, variably bouyant, pressure sensitive submersible that...
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4759719 |
Teaching device for the demonstration of scientific principles
Demonstration apparatus for showing the process of vapor phase deposition and extractive metallurgy is disclosed wherein a vacuum vessel is provided with an inner vessel containing a resistive...
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4674983 |
Relation teaching block arrays
A tactile teaching aid is disclosed in which fixed and variable arrays of elongate members having end face patterns are adapted to be fit together only when the label terms also have a conceptual...
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4543067 |
Amusement device
A light weight elongated tubular structure is counter-balanced by a depending weight around a pivot formed by a sharp point in contact with a hard flat horizontal surface, rotating around its pivot...
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4345247 |
Display system for steady state waves
A system for directly displaying steady state waves, such as sound waves, ultrasonic waves, electromagnetic waves, and the like, by instantaneously sampling the amplitude of the waves in a known...
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4298868 |
Electronic display apparatus
An apparatus is provided to produce an optical illusion of variable geometric patterns. The apparatus may be used as an electronic toy, display or kinetic art mural, as well as a demonstration aid...
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4099340 |
Chaotic motion generator
A plurality of elongated rollers are arranged on a surface in a substantially closed polygonal configuration. The rollers are interconnected so as to be simultaneously driven by a single motor...
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3878624 |
MODULAR DEMONSTRATOR
A modular demonstrator comprises a base member. A transparent cylindrical tube is supported in substantially upright position by the base member and has a plurality of bores formed therethrough at...
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3824711 |
EDUCATIONAL DEVICE
A simple, durable, and inexpensive educational device for demonstrating pressure-volume relationships especially adapted for use by educational institutions below the college level is described....
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3744151 |
EDUCATIONAL TOY
An educational toy comprising a closed container filled with a liquid having a freezing point generally below room temperature and a metal rod extending into the container and outwardly therefrom...
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