6 results found for chemistry

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00:59:00

Nanotubes: The Materials of the 21st Century

by Sumio Iijima
Nanotubes: The Materials of the 21st Century
for 14-19 and upwards,
Lectures | 14-19 and upwards | 15 years ago | 1391 views
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Carbon nanotubes, some 1000 times smaller than conventional carbon fibers, have tensile strengths 100x that of steel and conduct electricity like metals. They promise a revolution in structural and electrical engineering.

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00:58:00

Architects of the Microcosmos

by Harry Kroto
Architects of the Microcosmos
for 14-19 and upwards,
Lectures | 14-19 and upwards | 15 years ago | 1736 views
Rating:

In thistalk Harry Kroto explains that molecules have structures that are every bit as real in the mind of the chemists who create them, as are the edifices of brick, steel and concrete designed by architects and built by engineers.

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00:29:00

States of Matter

by John Murrell
States of Matter
for 14-19 and upwards,
Lectures | 14-19 and upwards | 15 years ago | 1764 views
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John Murrell discusses the basic physical principles relating to the gaseous, liquid and solid states with the aid of models and demonstrations. Attention is drawn to phase changes and subtle features involving intermediate phases such as liquid crys....

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00:56:00

Richard Ernst

by Richard Ernst
Richard Ernst
for 14-19 and upwards,
Interviews | 14-19 and upwards | 15 years ago | 1717 views
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Nuclear magnetic resonance (nmr), a powerful technique for determining molecular structure, has totally revolutionised chemistry. From its inception half a century ago, its potential as an analytical tool for identifying compounds was clear, albeit l....

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00:07:00

Rudolph A. Marcus

by Rudolph Marcus
Rudolph A. Marcus
for 14-19 and upwards,
Interviews | 14-19 and upwards | 15 years ago | 1970 views
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Winner of the Nobel Prize in Chemistry 1992 'for his contributions to the theory of electron transfer reactions in chemical systems'. We ask Marcus to explain how he works and he replies that he draws pictures in order to visualize problems. On relig....

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00:54:00

C-60, the Celestial Sphere that Fell to Earth

by Harry Kroto
C-60, the Celestial Sphere that Fell to Earth
for 14-19 and upwards,
Lectures | 14-19 and upwards | 15 years ago | 1611 views
Rating:

In 1985 an experiment, designed to unravel the carbon chemistry in Red Giant Stars, revealed the existence of C-60 Buckminsterfullerene (the third allotropic form of carbon). The story of the discovery and the way its symmetry relates to the natural ....

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