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61.

Modern Marvels: Nuclear Tech [electronic resource]

Nuclear energy gained notoriety from the atomic bomb, but weapons are not the only way to utilize nuclear technology. From powering spacecraft to providing clean energy, the amazing power of nuclear technology has yet to be fully realized.
Online
2004
62.

Modern Marvels: Roller Coasters - Search for the Ultimate Thrill [electronic resource]

Modern Marvels takes a ride on the fast track as it details the history and technology of roller coasters.
Online
1997
63.

Conceptual Physics

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Lectures by Professor Hewitt bring physics alive to the general public using concepts and demonstrations along with mathematics.
VHS
1991
Ivy (By Request)
64.

The Propagation of Waves

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The phenomenon of resonance is demonstrated with the use of a string pendulum. Structural vibration produced by earthquakes, caught as waves on a seismometer, demonstrates specific vibration resonance. Polarization and high speed, stop-action photography illustrate how an elastic wave propagates through a solid body.
VHS
1987
Ivy (By Request)
65.

Equilibrium of Forces

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This program teaches equilibrium of forces by demonstrating the following concepts: Zero gravity ; Balance and center of gravity ; Role of a keystone in an arch ; Weight of gases ; Weight, volume, displacement, and buoyancy ; Archimedie's Principle.
VHS
1997
Ivy (By Request)
66.

Motion of Bodies and Mechanical Energy

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This program teaches these concepts: Law of inertia ; Uniformly accelerated and uniform straight motion ; Free-fall motion ; Acceleration due to gravity ; Law of conservation of momentum ; Potential and kinetic energy ; Galileo's isochronism of a pendulum.
VHS
1997
Ivy (By Request)
67.

Heat

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Includes: Changing the energy of movement to heat energy ; Using compressed air to create fire ; The three states of matter ; Heat and changes of volume ; Heat expansion ; Thermal conduction ; Convection.
VHS
1997
Ivy (By Request)
68.

Pressure

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Includes: Air pressure ; Equal force ; Vacuum ; Atmospheric pressure ; Balanced pressure ; Pressure from depth of water ; Torricelli's experiement.
VHS
1997
Ivy (By Request)
69.

Waves and Sound

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Includes: Sound and vibration ; Resonance ; Standing waves ; Amplitude ; Traverse, longitudinal, planar, and circular waves ; Parabolic antennas and mirrors ; Reflection and refraction of waves.
VHS
1997
Ivy (By Request)
70.

Optics

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Includes: Mirrors and image formation ; Convex and concave mirrors ; Straight line propagation and reflection of light ; Angles of incidence, reflection, and refraction ; Principles of optical communication ; Focal point ; Holograms.
VHS
1997
Ivy (By Request)
71.

Magnetism and Static Electricity

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Includes: Magnetic field, poles, and lines of force ; Curie temperature ; Electromagnets ; Static electricity ; Thompson's water droplet experiment ; Like and unlike charges.
VHS
1997
Ivy (By Request)
72.

Electrical Energy

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This program teaches these concepts: Dynamos ; Electromagnetic induction ; How generators work ; Mutual induction ; Eddy current ; Superconductors ; Steam, hydroelectri, nuclear, wave, and wind energy conversion.
VHS
1997
Ivy (By Request)
73.

Electric Current

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Includes: Air pressure ; Equal force ; Vacuum ; Atmospheric pressure ; Balanced pressure ; Pressure from depth of water ; Torricelli's experiement.
VHS
1997
Ivy (By Request)
74.

Making Sound

Dr. Helen Czerski investigates the extraordinary science behind sounds we're familiar with and sounds we normally can't hear. At the Palace of Westminster,she teams up with scientists from the University of Leicester to carry out state-of-the-art measurements to reveal how Big Ben vibrates to create pressure waves in the air at particular frequencies. With soprano singer Lesley Garrett, Helen explores the science of the singing voice. At the summit of Stromboli, Helen and volcanologist Dr. Jeffrey Johnson use a special microphone to record the extraordinary deep tone produced by the volcano as it explodes—a frequency far too low for the human ear to detect. Finally, at the University of Cambridge's Institute of Astronomy, Helen meets a scientist who has discovered evidence of sound w [...]
Online
2017
75.

Life, the Universe and Everything

Philosophers have always sought grand theories to explain the world's mystery. And Stephen Hawking once predicted that science would have its own Theory of Everything by 2000. Yet we are no closer to an answer. Are we necessarily limited and reality beyond reach or is a solution just round the corner? The Panel Quantum physicist Sandu Popescu, philosopher Rufus Duits and independent filmmaker David Malone envisage an ultimate theory of everything. Gabrielle Walker hosts.
Online
2017; 2015
76.

Spreading

Renowned oceanographer and geophysicist Walter Munk observes that spreading decreases the energy of sound as it travels. Energy loss due to spreading is proportional to the square of the distance from the source.
Online
2015; 2011
77.

Sonar

Renowned oceanographer and geophysicist Walter Munk talks about sonar, which stands for sound navigation and ranging, the process by which objects (like submarines, for example) are discovered when sound waves are reflected off of them and then detected.
Online
2015; 2011
78.

Science Under Siege

From many-worlds to the multiverse, does physics still need experiments? The Speaker George Ellis examines the fantasies of contemporary cosmology.
Online
2017; 2015
79.

MegaWorld: Czech Republic

The Czech Republic has a long history of innovative engineering. See how they are meeting the challenges of building Europe's longest automobile tunnel right underneath the historic city of Prague. Go behind the scenes for exclusive access to the world's largest castle in downtown Prague. Watch European Truck Racing champion David Vr'ecký attempt to break the 300 km/h barrier and set a new world speed record. Other stories include a Czech company that makes the best plastic explosives, the largest earth-moving excavator in Europe, and the biggest beer spa in the world.
Online
2017; 2011
80.

The Physics of Fire

On average, about 8 million acres of land burns each year from wildfires. Big fires can reduce forests and grasslands to ash and can destroy homes and lives. Sadly, up to 90 percent of wildland fires in the United States are caused by humans’ carelessness, like unattended campfires, burning trash or waste, tossed-out cigarettes, and arson. The remaining 10 percent are usually started by lightning. Controlling and fighting fires isn’t easy. But knowing the science behind a burning blaze helps firefighters tackle the heat and flames to help save property, land and lives. Did you know wildfires often want to move uphill? It’s all part of the physics of how fires start and spread.
Online
2018