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00:03:00

How does a transistor work?

by Jonathan Hare
How does a transistor work?
for 11-14 and upwards,
Lectures | 11-14 and upwards | 7 years ago | 1979 views
Rating:

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....

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00:06:00

Solar Cells

by Jonathan Hare
Solar Cells
for 11-14 and upwards,
Lectures | 11-14 and upwards | 7 years ago | 5560 views
Rating:

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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00:06:00

Simple Electrical Generator

by Jonathan Hare
Simple Electrical Generator
for 11-14 and upwards,
Lectures | 11-14 and upwards | 7 years ago | 1270 views
Rating:

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.

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00:09:00

Paper Windmills

by Jonathan Hare
Paper Windmills
for 11-14 and upwards,
Lectures | 11-14 and upwards | 7 years ago | 2931 views
Rating:

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.

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00:04:00

Mobile Phone

by Jonathan Hare
Mobile Phone
for 11-14 and upwards,
Lectures | 11-14 and upwards | 7 years ago | 1395 views
Rating:

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!

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00:04:00

Electrical Generator

by Jonathan Hare
Electrical Generator
for 11-14 and upwards,
Lectures | 11-14 and upwards | 7 years ago | 1174 views
Rating:

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....

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00:09:00

Magnetism and Electricity

by Jean Pruitt
Magnetism and Electricity
for 14-19 and upwards,
Undergraduate presentations | 14-19 and upwards | 11 years ago | 1118 views
Rating:

This presentation reviews how magnets work and their uses in the world today. It also explains how magnets and electricity are related and what future inventions could come from using magnets.

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01:03:00

Plastic fantastic: electronics for the 21st century

by Richard Friend
Plastic fantastic: electronics for the 21st century
for 18-22 and upwards,
Lectures | 18-22 and upwards | 11 years ago | 1107 views
Rating:

Plastics - or, more correctly, polymers have traditionally been used by the electronics industry as passive materials. Now however, new types of polymers have been discovered which behave as semiconductors. For example, they can emit light when subje....

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00:09:00

Sticky tape X-rays

by Carlos Camara
Sticky tape X-rays
for 14-19 and upwards,
Lectures | 14-19 and upwards | 12 years ago | 1073 views
Rating:

Peeling sticky tape emits energy that extends into the X-ray regime, reports a study in Nature. The research provides evidence for a phenomenon that was first observed more than 50 years ago.nnIt is well known that unwinding sticky tape produces spar....

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00:06:00

Fibre and Sunlight

by John Hall
Fibre and Sunlight
for 14-19 and upwards,
Lectures | 14-19 and upwards | 12 years ago | 1237 views
Rating:

Fine tuning the frequencies of light gave John Hall a Nobel Prize, and helped transform the fields of precision measurement and information transmission. Iris Choi and Andrei Ghicov are young scientists excited by the ways physics can change our worl....

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00:12:00

The Nature and Physics of Lightning

by Emily Dougherty
The Nature and Physics of Lightning
for 14-19 and upwards,
Undergraduate presentations | 14-19 and upwards | 12 years ago | 2834 views
Rating:

Emily Dougherty presents on the nature and physics of lightning.

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00:05:00

Measuring the speed of pulses

by Colin Byfleet
Measuring the speed of pulses
for 14-19 and upwards,
Teaching modules | 14-19 and upwards | 12 years ago | 1852 views
Rating:

A short clip showing the experimental measurement of the speed of electrical pulses in a cable - a large fraction of the speed of light.

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