Communication on Earth, using Cables and Satellites
A brief look at the Physics behind sending signals along cables and via geostationary satellites. An experiment to measure the speed of an electrical pulse in a cable is described and the Physics of the orbits of communcations satellites is develope....
More details | Watch nowCrater Formation in Sand
A description and demonstration of the way in which craters formed by dropping objects into sand can be linked to some elementary physics
More details | Watch nowElectrical Generator
This short video shows one of the demonstrations for the Physics SEPNet exhibition - "Who will keep the lights on?" which travelled around the southern UK from February 2009. We describe and explain the electrical generator demonstration which Jona....
More details | Watch nowHow does a transistor work?
A short video explaining how transistors work. At the heart of our high-tech society with radios, mobile phones, computers and space exploration are tiny electronic components called transistors. They have revolutionised electronics and in the pr....
More details | Watch nowMeasuring the speed of sound – experimental details
A short clip showing the measurement of the speed of sound over short distances.
More details | Watch nowMobile Phone
Jonathan shows us with a cheap and simple homemade demonstration how your mobile telephone generates radio waves in order for you to use it to communicate. As you will see you can use this method to explore many aspects of your mobile phone!
More details | Watch nowPaper Windmills
Jonathan makes some simple paper windmills/turbines and experiments with a simple generator to power house hold devices such as torches, calculators and even a radio.
More details | Watch nowParabolic Light Collectors
Parabolic surfaces can be used to concentrate energy for example to focus sunlight to heat things. Using an old World War II spot light mirror we demonstrate how easy it it is to concentrate enough energy to cause combustion. Finally, we show how to ....
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When two different types of conductors are pushed into a potato chemical reactions take place charging them up - we have a simple electrochemical cell. A potato, zinc screw and carbon rod produce about 1V. We experiment joining a few of these cells u....
More details | Watch nowRadiation in Your Kitchen: Basic Microwave Oven Physics
They're awesome to have in the kitchen, but did you ever wonder how your microwave actually works? This is a quick introduction to the theory that makes our home microwave ovens possible. Here, Daniel covers the differences between microwave heati....
More details | Watch nowSeawater Battery
When two different metals are placed in a salt solution (an electrolyte) the chemistry produces a voltage. This is called a cell. By wiring up a number of these cells we can make a battery and use it to power electrical circuits.
More details | Watch nowShake-a-Gen
This is a simple yet effective demonstration of electricity generation. 500 turns of wire are wound onto a 35mm film can and the two ends are attached to an LED light. A strong magnet is placed in the can and the lid fixed back in place. The generato....
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With some simple circuitry and a homemade hand powered generator Jonathan makes AC and DC electricity that could be used for charging a mobile phone or attaching to a wind turbine.
More details | Watch nowSolar Cells
A short video on solar cells explaining with accompanying information sheet. How they work and how Jonathan uses solar power at home.
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Three Windmills
Converting wind power into electricity seems like an ideal way of helping to solve our energy problems. However, the power generated by a windmill is dependent on the wind speed. If the wind drops to half its speed there is as little as an 1/8th of t....
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The UK coast is constantly being bombarded by sea waves. There is a massive amount of power available from these waves. Jonathan describes three different ways of generating electrical power from water waves.
More details | Watch nowWhat is Color?
FSU undergrad, Daniel Stribling, investigates the intimate relationship between light and color. Daniel discusses the history, physics, and theory of light to engage young learners and encourage them to be excited about science.
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