Electrical connectors, electrical modules, and systems are provided. In one aspect, an electrical connector includes a housing defining a side surface, an electrical conductor supported by the housing and including an engagement portion proximate the side surface of the housing. The engagement portion is adapted to engage another electrical conductor of another electrical connector. The connector also includes a magnet supported by the housing proximate the side surface of the housing, a projection extending from the side surface of the housing, and a receptacle defined in the side surface of the housing. In other aspects, an electrical module includes at least one of these electrical connectors. In further aspects, a system includes a plurality of these modules and the modules are selectively couplable together.

A kit includes front and back planar members each having receptacle notch, a generally U-shaped clip configured to mate with the receptacle notches to secure the front and back planar members together, at least one LED, a battery, and a plurality of conductive tapes.

A method of testing a design of a satellite payload transponder with modules of radio frequency (RF) communications circuitry includes executing a modeling application for establishing a modeling environment for generating a virtual satellite payload transponder and virtual test equipment. The virtual satellite payload transponder has virtual modules of RF communications circuitry, with functionality equivalent to that of the satellite payload transponder with modules of RF communications circuitry. The virtual test equipment has functionality equivalent to that of physical test equipment in conjunction with modular test system software. The modeling environment establishes an executable block diagram for performing a simulation of executed satellite payload transponder command, RF signal performance and telemetry response testing, utilizing a given version of the modular test system software corresponding to the modules of RF communications circuitry of the design of the satellite payload transponder.

An electronic building block system includes at least one set of power source modules (10) for supplying electric energy, at least one set of input modules (20) electrically connected to the power source modules (10) and used for inputting data and signals, at least one set of output modules (30) electrically connected to the power source modules (10) and used to receive data and signal control of the input modules (20) to output corresponding signals and at least one communication module (40) selectively connected to the power source modules (10); and the communication module (40) is connected or disconnected so that communication between the electronic building block system and an external terminal (50) is connected to or disconnected, so that the electronic building block system is in a non-programmable state or a programmable state. The electronic building block system is in the non-programmable state or the programmable state so as to meet actual use requirements of the electronic building block system by people at different experience levels.

Modular frames for instructional use that provide secure mounts for geometric solids are presented. Some contemplated modular frames can be assembled into three dimensional modular devices and are particularly suitable for instructional purposes. Modular devices comprising two or more frames could be coupled via a clip in two or more different configurations. Containers including conductive material and configured to provide a Faraday cage around their contents are also provided.

A method of realizing an interactive virtual experiment is provided. A teacher may drag a minimum experimental unit into a demonstration area using a mouse. The above operational action is described as digital data in a panoramic learning platform. The data is transmitted to a student client. The same minimum experimental unit is automatically placed in the same position of the demonstration area of the virtual experiment subsystem of the student client according to the data. The teacher may operate the minimum experimental unit. The operational action is described as digital data in the panoramic learning platform. The data is sent to the student client. The same operational action is automatically performed in the student client based on the above data. The demonstration is performed on the minimum experimental units in the demonstration areas of the teacher client and the student client.

A system for generating computer programs includes physical carriers of information that have a rectangular contrasting marker associated with an element of the computer program and a description text and/or a graphical symbol. The carriers may form the computer program when they are sequentially arranged along a first axis and at least one carrier may receive another carrier of information on its right side, along a second axis. The system also includes image capturing device for capturing a digital image of an arrangement of the carriers forming the computer program. A computer device has a display screen and is configured to process the image; recognize the carriers on the image; determine the arrangement of the carriers with respect to each other; superimpose on the image a graphical icon above the marker of each recognized carrier; output the combined digital image and convert the determined arrangement to the computer program.

An electric motor construction kit for assembling a plurality of electric motors includes at least one module and a plurality of assemblies for constructing the plurality of electric motors. At least one assembly of the plurality of assemblies includes one or more modules of the at least one module. Apart from a cooling system of an electric motor of the plurality of electric motors, each module of the at least one module is constructed from carry-over parts.

Modular frames for instructional use that provide secure mounts for geometric solids are presented. Some contemplated modular frames can be assembled into three dimensional modular devices and are particularly suitable for instructional purposes. Modular devices comprising two or more frames could be coupled via a clip in two or more different configurations. Containers including conductive material and configured to provide a Faraday cage around their contents are also provided.

A toy is disclosed. The toy includes a toy building block, a snap-together electronic toy, and an adapter. The toy building block includes a first building block mating member. The snap-together electronic toy includes a first snap-fitting member. The adapter is configured to connect the toy building block to the snap-together electronic toy. The adapter includes a second building block mating member which is configured to mate with the first building block mating member of the toy building block, and a second snap-fitting member which is configured to mate with the first snap-fitting member of the snap-together electronic toy.