Recommended Videos For You

Monday, May 26, 2014

Bill uses a replica of the point contact transistor built by Walter Brattain and John Bardeen at Bell Labs. On December 23, 1947 they used this device to amplify the output of a microphone and thus started the microelectronics revolution that changed the world. He describes in detail why a transistor works by highlighting the uniqueness of semiconductors in being able to transfer charge by positive and negative carriers.
credit: engineerguy ©2014

How the first Transistor works?

Bill explains the essential principles of a lead-acid battery. He shows the inside of motorcycle lead-acid battery, removes the lead and lead-oxide plates and shows how they generate a 2 volt potential difference when placed in sulfuric acid. He explains how the build up of lead sulfate between the plates will make the battery unusable if it discharged completely, which leads him to a description of how to make a deep cycle battery used for collecting solar energy.
credit: engineerguy ©2014

How a lead-acid Battery works?

Bill uses a bucket of propylene glycol to show how a fiber optic cable works and how engineers send signal across oceans.
credit: engineerguy ©2014

How Fiber Optic cable works?

A basic demonstration of wireless communication. Includes instructions for creating a simple wireless transmitter using an AM radio as the receiver.
credit: ScienceOnline ©2014

How to create a simple Wireless Transmitter?

This video discusses the origin of Cardinal Directions (North, South, East and West), the compass and True North vs Magnetic North.
credit: ScienceOnline ©2014

How to understand Compass? True North vs Magnetic North

Atmospheric pressure plays an essential role in respiration and the function of many devices, including water pumps, syringes and drinking straws. The video explains pascals and psi and includes a demonstration revealing the presence of atmospheric pressure.
credit: ScienceOnline ©2014

How to explain the presence of atmospheric pressure?

Einstein came to the conclusion that gravity and acceleration were indistinguishable, this was a brilliant leap of imagination that redefined the universe.
credit: ScienceOnline ©2014

How to redefine the Universe? Gravity and Acceleration

In 1910, researcher Thomas Hunt Morgan, discovered the relationship between chromosomes and inherited traits. He accomplished this by studying generations of white and red eyed Drosophila - Fruit Flies. This video explains the basic science behind the discovery.
credit: ScienceOnline ©2014

Relationship between Chromosomes and Inherited traits

This video provides an outline for a "kitchen science' investigation designed to replicate T.H. Morgan's famous experiment of 1910. Morgan won the Nobel Prize for his contribution to genetics. This investigation uses the common fruit fly, Drosophila Melanogaster, as its subject.
credit: ScienceOnline ©2014

How to replicate Morgan's Experiment of 1910?

This video describes how to use your video camera to determine the speed of sound. This is an excellent science fair project. Investigate the relationship between air temperature and the speed of sound.
credit: ScienceOnline ©2014

How to use video camera to determine the Speed of Sound?

The powerful procedures possible with modern mathematics are rooted in logic that began thousands of years ago. Thales' Theorem demonstrates one style of early mathematical logic, a logic that is relevant and important today.
credit: ScienceOnline ©2014

How to easily understand Thales' Theorem?

This video demonstrates how to construct a simple sound synthesizer using inexpensive electronic components. Support for this project including a circuit diagram can be found at
credit: ScienceOnline ©2014

How to construct Sound Synthesizer?

Cartesian Divers - an interesting demonstration of the science behind sinking and floating. The device is easily constructed - a useful classroom demonstration.
credit: ScienceOnline ©2014

How Buoyant Force works? sinking and floating

The ancient Greeks discovered the relationship between the earth, moon and sun. A great example of the power of the human imagination. This video demonstrates a method used by the ancient Greeks to determine the distance to the sun, a good activity for any astronomy class.
credit: ScienceOnline ©2014

How far is the Sun?

This information is brought to you by Brayton Energy Canada. Brayton Energy was established in August 2008 and endeavors to advance the development of renewable and other forms of environmentally-responsible energy production with current
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How Solar Panel works?