28 results found for Colin Byfleet

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Numbers 00:11:00

All numbers are not equal

by Colin Byfleet
All numbers are not equal
for 14-19 and upwards,
Teaching modules | 14-19 and upwards | 11 years ago | 1312 views
Rating:

An introduction to the various types of numbers which are recognised as important.

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C60+ apparatus 2 00:02:00

C60+ in space – a 28-year detective story about the Diffuse Interstellar Bands – Part 3

by Colin Byfleet
C60+ in space – a 28-year detective story about the Diffuse Interstellar Bands – Part 3
for 14-19 and upwards,
Lectures | 14-19 and upwards | 3 years ago | 2759 views
Rating:

John Maier's team at the University of Basel solved the riddle of C60+ in 2015.  In this brief view Colin Byfleet looks at the unique apparatus used in John's work.

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Neon Matrix 00:03:00

C60+ in space – a 28-year detective story about the Diffuse Interstellar Bands – Part 4

by Colin Byfleet
C60+ in space – a 28-year detective story about the Diffuse Interstellar Bands – Part 4
for 14-19 and upwards,
Lectures | 14-19 and upwards | 3 years ago | 2853 views
Rating:

The early (mid 1990s) work on the electronic spectroscopy was carried out by John Maier's group, trapping C60+ in a neon matrix in this apparatus.

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Diffuse Interstellar Bands - the future 00:02:00

C60+ in space – a 28-year detective story about the Diffuse Interstellar Bands – Part 5

by Colin Byfleet
C60+ in space – a 28-year detective story about the Diffuse Interstellar Bands – Part 5
for 18-22 and upwards,
Lectures | 18-22 and upwards | 3 years ago | 3258 views
Rating:

It seems likely that C60+ will act as a stable site for a wide variety of adducts and that these entities will contribute to the Diffuse Interstellar Bands.  John Maier's group in Basel is looking for species like C60(Fe)+.

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Centripetal force 00:06:00

Centripetal force – how do we measure it?

by Colin Byfleet
Centripetal force – how do we measure it?
for 14-19 and upwards,
Teaching modules | 14-19 and upwards | 10 years ago | 6656 views
Rating:

A short video showing a simple classroom method of checking the way in which this force is related to mass, speed and radius.

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Chemical Equations 00:33:00

Chemical Equations – and how we construct them

by Colin Byfleet
Chemical Equations – and how we construct them
for 14-19 and upwards,
Teaching modules | 14-19 and upwards | 10 years ago | 1241 views
Rating:

An introduction into the writing down of fully balanced chemical equations. The process is explained starting with word equations, finding all the relevant formulas and then working with some useful rules for finding the correct coefficients in the b....

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Physics of Communications 00:33:00

Communication on Earth, using Cables and Satellites

by Colin Byfleet
Communication on Earth, using Cables and Satellites
for 11-14 and upwards,
Lectures | 11-14 and upwards | 10 years ago | 1114 views
Rating:

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....

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Space Probes 00:25:00

Communication with Space Probes and beyond

by Colin Byfleet
Communication with Space Probes and beyond
for 14-19 and upwards,
Lectures | 14-19 and upwards | 10 years ago | 3962 views
Rating:

The main problems associated with communicating with distant space probes like Voyager 1 are investigated. The role played by diffraction in limiting the amount of power receivable on Earth is discussed. The further problems of reaching a nearby st....

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chem formula 00:26:00

Constructing Chemical Formulas

by Colin Byfleet
Constructing Chemical Formulas
for 14-19 and upwards,
Lectures | 14-19 and upwards | 10 years ago | 13983 views
Rating:

An introduction to constructing and recognising chemical formulas. Using 20 well-known elements, the valency-rules which govern the atomic ratios are explained and used with several examples.

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Crater formation 00:11:00

Crater Formation in Sand

by Colin Byfleet
Crater Formation in Sand
for 11-14 and upwards,
Teaching modules | 11-14 and upwards | 11 years ago | 2849 views
Rating:

A description and demonstration of the way in which craters formed by dropping objects into sand can be linked to some elementary physics

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Estimation 00:13:00

Estimation – Educated Guesswork?

by Colin Byfleet
Estimation – Educated Guesswork?
for 14-19 and upwards,
Teaching modules | 14-19 and upwards | 11 years ago | 1220 views
Rating:

How can we make sensible estimates of very large numbers? It is often very important to know the size of an unknown number, at least to within a factor of ten.

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Fractions 1 00:21:00

Fractions 1

by Colin Byfleet
Fractions 1
for 14-19 and upwards,
Teaching modules | 14-19 and upwards | 11 years ago | 1640 views
Rating:

How can we represent fractions in the simplest way?   Equivalence of decimal and common fractions.

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byfleet fractions 2 00:12:00

Fractions 2

by Colin Byfleet
Fractions 2
for 14-19 and upwards,
Teaching modules | 14-19 and upwards | 11 years ago | 1296 views
Rating:

An approach to adding and subtracting fractions, using an understanding of the processes involved.

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Byfleet fractions 3 00:16:00

Fractions 3

by Colin Byfleet
Fractions 3
for 11-14 and upwards,
Lectures | 11-14 and upwards | 11 years ago | 1289 views
Rating:

Mutiplying and dividing fractions: a systematic approach to this perennial problem.

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Centripetal exp 00:14:00

Going round in circles – how do we do it?

by Colin Byfleet
Going round in circles – how do we do it?
for 14-19 and upwards,
Teaching modules | 14-19 and upwards | 10 years ago | 1109 views
Rating:

A presentation showing both the ideas about centripetal force and a simple classroom method of checking the way in which this force is related to mass, speed and radius.

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Isaac Newton 00:18:00

Isaac Newton and Gravitation

by Colin Byfleet
Isaac Newton and Gravitation
for 14-19 and upwards,
Lectures | 14-19 and upwards | 11 years ago | 2136 views
Rating:

A look at what was known when Newton started to develop his theory of gravitation and how he used these ideas and data to make his great forward step

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Logarithms 00:25:00

Logarithms

by Colin Byfleet
Logarithms
for 14-19 and upwards,
Lectures | 14-19 and upwards | 11 years ago | 1281 views
Rating:

'The amazing Mr Briggs' or 'Where do Logarithms come from?'

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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 | 1492 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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Speed of Sound i 00:09:00

Measuring the speed of sound

by Colin Byfleet
Measuring the speed of sound
for 14-19 and upwards,
Teaching modules | 14-19 and upwards | 10 years ago | 9852 views
Rating:

A presentation showing how to measure the speed of sound over a short distance on a laboratory table.

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Speed of Sound 00:04:00

Measuring the speed of sound – experimental details

by Colin Byfleet
Measuring the speed of sound – experimental details
for 11-14 and upwards,
Teaching modules | 11-14 and upwards | 10 years ago | 6665 views
Rating:

A short clip showing the measurement of the speed of sound over short distances.

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Oxidation numbers 00:37:00

Oxidation Numbers and Equations

by Colin Byfleet
Oxidation Numbers and Equations
for 14-19 and upwards,
Teaching modules | 14-19 and upwards | 10 years ago | 1683 views
Rating:

The concept of oxidation and reduction is explained and generalised using oxidation numbers with ionic and covalent examples. Several equations are balanced, using the oxidation number method to fix various atomic ratios.

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Penicillin 00:08:00

Penicillin – the Life Saver

by Colin Byfleet
Penicillin – the Life Saver
for All ages,
Interviews | All ages | 11 years ago | 1140 views
Rating:

Real-life story about one of the first uses of penicillin.  An interview with a survivor.

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Percentage 00:15:00

Percentages

by Colin Byfleet
Percentages
for 11-14 and upwards,
Teaching modules | 11-14 and upwards | 11 years ago | 1298 views
Rating:

Making life easy when using percentages. A sometimes fraught topic looked at differently.

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Interest 00:10:00

Simple and Compound Interest

by Colin Byfleet
Simple and Compound Interest
for 11-14 and upwards,
Teaching modules | 11-14 and upwards | 11 years ago | 2633 views
Rating:

Be wary of high interest rates! An introduction to how loans grow.

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