San Antonio College Library

Spectral Band Replication (SBR) is a novel method for compressing digital audio files making it possible for millions of people around the world to enjoy either higher quality sound or higher compression easily and affordably. SBR was conceived by the Swedish inventor Lars Liljeryd and turned into a real-world application by a team of engineers that included Kristofer Kjörling, Per Ekstrand and Fredrik Henn. Liljeryd's ideas revolutionized an entire...

Experts discuss recent advances in electric vehicles. Topics include: Lithium-ion, Lithium-air, Lithium-sulfur, and magnesium-ion batteries on this episode of Newton.

Dial in to the history of the smartphone, from its roots in Morse Code to 1997, when the first picture was transmitted over a cellphone. Plus, see how the next generation of smartphones will allow us to communicate through them just by thinking.

Capacitors, fuses, fuse links, circuit breakers, flashers, coils, and other devices are discussed in this training video. Computer animation, component cutaways, and lab experiments are used to demonstrate how these basic components are constructed and how they operate. This is a must-see for all students of electricity-electronics, technology courses, auto mechanics, and many other subject areas that involve electricity and electronics.

Computer animation is used to make basic electronic components come to life in this very informative training video. The principles of semiconductor materials, transistor operation, transistor construction, transistor types, diodes, and other basic electronic components are illustrated with very interesting experiments and computer animation. This is a "must have" for courses in electronics, electricity, motor controls, technology, air conditioning,...

The SETUR Turbine, a novel hydropower turbine pioneered by engineer Miroslav Sedlácek and team at the Czech Technical University in Prague, exploits a novel hydrodynamic principle - a rolling fluid principle (vortex dynamic) - making it possible to generate electricity in small, previously untapped water reservoirs such as tidal streams, small rivers and brooks. This rolling fluid principle was discovered by Miroslav Sedlácek in 1993. He used...

Terry challenges the guys to parachute a watermelon from 100 ft without breaking it and to cook a hot dog without using fire.

This program presents both the theory of electric circuits and basic practical methods of managing circuits safely. The benefits and dangers of ground circuits are investigated, together with safety devices such as fuses and ground fault interrupters. The concept of electric resistance is introduced. Specific modules include completing a circuit, fuses, circuit breakers, ground circuits, ground faults, ground fault interrupters, resistance, and electrical...

This documentary charts the journey of illiterate women from villages around the world with no electricity, who attend a course in India to learn how to make solar panels. They don't speak English, but they are determined to learn the technology, so they can help their communities back home. Those who have completed the course have returned to their villages and brought the sun home to more than 300,000 people.