WorldCat Identities

Northey Productions Ltd

Overview
Works: 132 works in 240 publications in 2 languages and 2,334 library holdings
Genres: Educational films  Internet videos  History  Juvenile works  Nonfiction films  Animated films  Motion pictures  Pictorial works 
Classifications: QK882, 537.2
Publication Timeline
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Most widely held works by Northey Productions Ltd
Geometric optics reflection( Visual )

8 editions published in 2007 in English and held by 334 WorldCat member libraries worldwide

What does a mirror tell us about light? This cluster of 11 computer-animated video units delves into one aspect of light's behavior-reflection. Euclid's geometric optics and his findings on the perception of distance and perspective lead to a discussion of the Law of Reflection-linking angle of incidence with angle of reflection-and the concepts of absorption, transmission, and diffuse reflection. The principles involved with plane, concave, and convex mirrors are explained, including vertex, principle axis, center of curvature, radius of curvature, and virtual image. A group of "mirror equations" show how an object's location can be determined using the laws of reflection
The Quantum leap photons and light particles( Visual )

5 editions published between 2006 and 2007 in English and held by 167 WorldCat member libraries worldwide

Exploring the antithesis of the wave model, this album of eight computer-animated video segments looks at the particle approach to studying light. Black-body radiation, Planck's constant, the Photoelectric Effect, and the work of James Clerk Maxwell are presented as forerunners to Einstein's concept of photon frequency. Examples of a slope intercept graph and a revised double-slit experiment using light-sensitive paper segue to an illustration of the Compton Effect, establishing that light consists of a stream of particles. De Broglie's contributions introduce wave-particle duality-which some might consider a muddy solution, although it represents the best that current science can do
The Wave nature of light( Visual )

4 editions published in 2007 in English and held by 166 WorldCat member libraries worldwide

Is light composed of waves or particles? This collection of 17 computer-animated video modules explores the wave model of light, from its earliest roots to our modern understanding of electromagnetism. Empedocles' belief that light streams from the eye, Aristotle's conception of light as a disturbance in ether, and Euclid's mathematical, ray-centered paradigms are all explored. The Cartesian sine wave model, Huygens' principle of bending wave fronts, the electromagnetic spectrum, and aspects of particle theory are also presented, along with overviews of diffraction, interference, polarization, and dispersion, and an explanation of Young's double-slit experiment
The Special theory of relativity( Visual )

4 editions published in 2007 in English and held by 165 WorldCat member libraries worldwide

How did 20th-century physics change long-held notions of light's makeup and behavior? This group of 12 concise computer-animated videos illustrates Einstein's monumental contributions to the study of light. Showing how rudimentary ideas of material wave motion yielded to more advanced concepts of electromagnetic waves, the program details Einstein's conclusions about the speed of light and his conception of time-which, given his findings on mass and energy, proceeds according to variable frames of reference. Relativistic thought experiments, conveyed through helpful animation, demonstrate simultaneity, time dilation, length contraction, and relativistic mass
Metals and ionic solids( Visual )

3 editions published between 1984 and 2005 in English and held by 92 WorldCat member libraries worldwide

Shows the common properties of metal (conductivity and maleability) and explains the types of bonding that occur between metal atoms. The properties of metals, which are covalent solids, are contrasted with those of crystals, which are ionic solids. Animated
Introducing the players( Visual )

3 editions published between 1984 and 2005 in English and held by 86 WorldCat member libraries worldwide

Introduces the atom and the three main subatomic particles--the electron, the proton, and the neutron. Demonstrates the location, charge, and relative mass of these particles. Reviews Ernest Rutherford's model of the atom in terms of its advances and shortcomings
Geography skills( Visual )

1 edition published in 1995 in English and held by 85 WorldCat member libraries worldwide

This computer-animated series provides an in-depth examination of the important skills of the geographer
Conductors and insulators( Visual )

3 editions published between 1986 and 2005 in English and held by 69 WorldCat member libraries worldwide

Establishes some of the fundamental principles of electrostatics, such as negative and positive charges. Illustrations of the electron flow in charged particles at the atomic level show the difference between conductors and insulators
Charging by induction( Visual )

2 editions published between 1992 and 2005 in English and held by 67 WorldCat member libraries worldwide

Reviews the concepts of charging by contact and discharging by grounding illustrates how a charged rod affects an electroscope. One application of charging by induction is demonstrated with a simulation of the action of lightning during a thunderstorm
Protein synthesis( Visual )

5 editions published between 1984 and 2005 in English and Spanish and held by 44 WorldCat member libraries worldwide

Emphasises the importance of proteins as the basic building blocks of life and the fundamental role that protein synthesis plays in all living things. Each sequence explores one aspect of the process, from the manufacture of DNA to the roles of the messenger and transfer RNA. Computer animation provides clear demonstrations that make this complex subject easily understood
Wave-particle duality( Visual )

6 editions published between 1984 and 2005 in English and held by 33 WorldCat member libraries worldwide

Explains the behavior of light from the concepts of the ancient Greeks to the proven models of today. Suggested audience: secondary
Photosynthesis( Visual )

2 editions published between 1984 and 1992 in English and held by 33 WorldCat member libraries worldwide

Demonstrates how chlorophyll in plants absorbs and transfers captured light energy to other molecules and eventually creates energy storage molecules such as glucose
The feedback cycle( Visual )

1 edition published in 1992 in English and held by 31 WorldCat member libraries worldwide

Describes the feedback cycle, the ongoing monitoring of homeostasis to inhibit or stimulate the release of hormones. Shows how negative feedback works and the many ways the body responds to messages from receptors
Homeostasis( Visual )

2 editions published in 1992 in English and held by 30 WorldCat member libraries worldwide

This program takes a look at the role played by hormones in maintaining homeostasis, illustrating how hormone production stimulates reactions and, in turn, how hormone production is monitored
Structure of the atom( Visual )

7 editions published between 1984 and 2005 in English and held by 29 WorldCat member libraries worldwide

Explores the history and development of the model of the atom from the hypotheses of early Greek philosophers to the wave-mechanical model of modern atomic physicists. Examines experiments by pioneer atomic scientists
The meiotic mix( Visual )

1 edition published in 1992 in English and held by 28 WorldCat member libraries worldwide

Explains the difference between mitosis and meiosis. Shows how variations are generated by chromosomes matching during meiosis
The Sea within( Visual )

1 edition published in 1992 in English and held by 26 WorldCat member libraries worldwide

Looks at how body fluids are adjusted and balanced to match internal needs to external conditions. Describes the five mechanisms of homeostasis that control body fluids
Osmoregulation( Visual )

1 edition published in 1992 in English and held by 24 WorldCat member libraries worldwide

Explores the process of osmoregulation, using as an example the complex filtering process that takes place in the kidneys
Energy flow at the cellular level( Visual )

2 editions published between 1984 and 1992 in English and held by 23 WorldCat member libraries worldwide

Examines energy flow at the cellular level, where a single cell is likened to a micro-ecosystem
Nuclear physics( Visual )

5 editions published between 1985 and 2005 in English and held by 23 WorldCat member libraries worldwide

Shows how an interest in cathode rays led scientists to discover X-rays, then alpha, beta, and gamma radiation, and finally to explore the conversion of matter into energy. Clarifies the concepts of nuclear fission and nuclear fusion, and tells how a nuclear reactor works
 
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Audience Level
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  Kids General Special  
Audience level: 0.23 (from 0.17 for The meioti ... to 0.33 for Wave-parti ...)

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