29 results found for electricity

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‘Dark, clowdy, and impertinent’ 01:01:00

Dark, clowdy and impertinent’ – Thomas Browne’s scientific language

by Claire Preston
Dark, clowdy and impertinent’ – Thomas Browne’s scientific language
for 14-19 and upwards,
Lectures | 14-19 and upwards | 6 years ago | 337 views
Rating:

Succulent, cretaceous, technology, parasitical, electricity . . . Scientific investigation in the seventeenth century generated new ideas, and scientists needed new words to express them. Experimentalists, observers, collectors, and technicians all c....

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Developing new solar cells 01:02:00

Developing new solar cells – cheaper, or more efficient?

by Neil Greenham
Developing new solar cells – cheaper, or more efficient?
for 14-19 and upwards,
Lectures | 14-19 and upwards | 5 years ago | 987 views
Rating:

Using solar cells to convert sunlight to electricity is an attractive way to reduce carbon emissions, but solar cells are still too expensive to be installed on the scale required. The next generation of solar cells aim to solve this problem using st....

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Murrell electrical conduction 00:02:00

Electrical Conduction

by John Murrell
Electrical Conduction
for 14-19 and upwards,
Lectures | 14-19 and upwards | 10 years ago | 950 views
Rating:

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Hare Electrical Generator 00:04:00

Electrical Generator

by Jonathan Hare
Electrical Generator
for 11-14 and upwards,
Lectures | 11-14 and upwards | 5 years ago | 907 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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Barker 00:59:00

Electricity, Magnetism and the Body

by Anthony Barker
Electricity, Magnetism and the Body
for 14-19 and upwards,
Lectures | 14-19 and upwards | 10 years ago | 746 views
Rating:

The controlled ways that electricity and magnetism can stimulate the body are demonstrated and how the resulting responses can aid diagnosis discussed.

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Hall J 00:06:00

Fibre and Sunlight

by John Hall
Fibre and Sunlight
for 14-19 and upwards,
Lectures | 14-19 and upwards | 9 years ago | 922 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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Lopez v 00:12:00

Fuel cells and their efficiency

by Victoria Lopez
Fuel cells and their efficiency
for 14-19 and upwards,
Lectures | 14-19 and upwards | 9 years ago | 803 views
Rating:

An examination of the usefulness of fuel cells

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Hare - The Transistor 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 | 5 years ago | 1564 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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Ion channels 00:30:00

Ion Channels: Their Discovery, their Function and their Role in Diseases

by Erwin Neher
Ion Channels: Their Discovery, their Function and their Role in Diseases
for 18-22 and upwards,
Lectures | 18-22 and upwards | 3 years ago | 711 views
Rating:

The concept of bioelectricity emerged in the late 18th century, based on the experiments of Galvani and Volta. Sixty years ago, Hodgkin and Huxley showed that the nerve impulse is a result of permeability changes of the nerve membrane. This raised th....

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Pruitt 00:09:00

Magnetism and Electricity

by Jean Pruitt
Magnetism and Electricity
for 14-19 and upwards,
Undergraduate presentations | 14-19 and upwards | 9 years ago | 849 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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Speed of Electricity 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 | 10 years ago | 1530 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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Hare Mobile Phone 00:04:00

Mobile Phone

by Jonathan Hare
Mobile Phone
for 11-14 and upwards,
Lectures | 11-14 and upwards | 5 years ago | 1052 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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