248 results found for chemistry

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00:07:00

A nano-sized gas sensor 6

by Marc Delgado
A nano-sized gas sensor 6
for 18-22 and upwards,
Lectures | 18-22 and upwards | 15 years ago | 2230 views
Rating:

Sensotran are the industrial partner in the nano2hybrids project. A small family firm based just outside Barcelona in Spain, they are experts in commercial production of gas sensors for a range of industries, notably for detecting dangerous gases pro....

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00:08:00

Bucky Balls

by Jonathan Hare
Bucky Balls
for 14-19 and upwards,
Lectures | 14-19 and upwards | 15 years ago | 2547 views
Rating:

The Buckyball, or C-60 molecule was discovered by accident (in the lab) while trying to understand the chemistry between the stars in the Interstellar Medium ISM. The discovery led to the Nobel Prize in chemistry in 1996. Here we look at the structur....

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00:03:00

Manchester United

by Harry Kroto
Manchester United
for 11-14 and upwards,
Workshops | 11-14 and upwards | 15 years ago | 8095 views
Rating:

A workshop in Chemistry at Old Trafford.

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00:45:00

Nesta Inspire Workshop

by Harry Kroto
Nesta Inspire Workshop
for 11-14 and upwards,
Workshops | 11-14 and upwards | 15 years ago | 8660 views
Rating:

Harry Kroto and Jonathan Hare give a workshop at the University of Sussex to local school children and simultaneously video conference with children at Leicester, Imperial, Cardiff, and Edinburgh universities.

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00:25:00

Women in Nanotechnology

by Various Presenters
Women in Nanotechnology
for 14-19 and upwards,
Discussions | 14-19 and upwards | 15 years ago | 1892 views
Rating:

The Women in Nanotechnology project (WomenInNano) was a 3 year EU Research Project with the aim of finding out ways to support and encourage women working in Nanotechnology. In 2008 the Vega Science Trust was asked to make a short film documenting th....

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00:05:00

Giant Fullerenes

by Jonathan Hare
Giant Fullerenes
for 14-19 and upwards,
Lectures | 14-19 and upwards | 15 years ago | 2540 views
Rating:

C-60, the football caged molecule is the head of a family of carbon based structures called the Fullerenes. In this presentation we ook at the larger structures, the giant fullerenes and among other things we will explore the 60n2Ā rule us....

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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
Rating:

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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00:58:00

How to be Right and Wrong

by John Cornforth
How to be Right and Wrong
for 18-22 and upwards,
Lectures | 18-22 and upwards | 15 years ago | 1798 views
Rating:

Nobel Laureate Professor Sir John Cornforth, overcomes his deafness to present an elegant account of how he, and his wife Rita, disentangled a historically important puzzle in steroid synthesis.

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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
Rating:

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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00:29:00

Nuclear magnetic resonance and macromolecules

by Kurt Wurthrich
Nuclear magnetic resonance and macromolecules
for 18-22 and upwards,
Interviews | 18-22 and upwards | 15 years ago | 1813 views
Rating:

Kurt Wurthrich was awarded a Nobel Prize in Chemistry in 2002 'for his development of nuclear magnetic resonance spectroscopy for determining the three-dimensional structure of biological macromolecules in solution' He now shares his life between his....

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00:42:00

Atmospheric Chemistry

by Sherwood Rowland
Atmospheric Chemistry
for 14-19 and upwards,
Interviews | 14-19 and upwards | 15 years ago | 2261 views
Rating:

In this interview Sherwood Rowland talks about Ozone depletion and the effect of CFCs on Ozone and Global Warming (Greenhouse Warming where infrared radiation is trapped). He explains the chemistry of Ozone depletion and the history of what led to th....

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00:42:00

Climate change

by Sherwood Rowland
Climate change
for 14-19 and upwards,
Interviews | 14-19 and upwards | 15 years ago | 1657 views
Rating:

This presentation gives Rowland's current (2006) opinion/impression of Global Warming. He says that the first legislated discussion that he remembers in the US senate on the Global Warming was in 1986 and the looming problem and whether governments s....

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01:00:00

Crystallographic electron microscopy

by Aaron Klug
Crystallographic electron microscopy
for 18-22 and upwards,
Interviews | 18-22 and upwards | 15 years ago | 2413 views
Rating:

Born in Lithuania, Aaron Klug, Nobel Prize in Chemistry, 1982, tells us about his early life and education growing up in Durban, South Africa. He developed an early interest in physiology and anatomy but did not find his teacher very inspiring and ga....

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00:28:00

Extremely Fast Chemical Reactions

by Manfred Eigen
Extremely Fast Chemical Reactions
for 18-22 and upwards,
Interviews | 18-22 and upwards | 15 years ago | 2326 views
Rating:

This interview starts with Eigen (Nobel Prize in Chemistry, 1967) talking about his early work for his PhD thesis on fast reactions and measuring the specific heat of heavy water. He says that light water had already been measured in classical chemis....

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00:40:00

Discovery and development of conductive polymers.

by Alan MacDiarmid
Discovery and development of conductive polymers.
for 18-22 and upwards,
Interviews | 18-22 and upwards | 15 years ago | 12053 views
Rating:

Alan MacDiarmid was the first New Zealand born and educated Nobel Prize (Chemistry, 2000) winner since Maurice Wilkins in 1962. In this interview MacDiarmid talks about the science that he was awarded the Nobel Prize for, the discovery of the first c....

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00:40:00

Conductive Polymers

by Alan Heeger
Conductive Polymers
for 18-22 and upwards,
Interviews | 18-22 and upwards | 15 years ago | 3333 views
Rating:

Heeger says that he started as a physicist and thinks like a physicist but got interested in the late 70's in the study of materials. For him it was a natural evolution to move to polymers and in 1975 he began working with Alan MacDiarmid and became ....

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00:29:00

Enzyme-Catalysed Reactions

by John Cornforth
Enzyme-Catalysed Reactions
for 18-22 and upwards,
Lectures | 18-22 and upwards | 15 years ago | 2194 views
Rating:

John Cornforth, (Nobel Prize in Chemistry, 1975), is a member of the Royal Society and is still very active in chemistry research at Sussex University. This section from longer archive recordings shows his warmth and personality, and gives an insight....

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00:29:00

Nanotechnology

by Various Presenters
Nanotechnology
for 14-19 and upwards,
Discussions | 14-19 and upwards | 15 years ago | 1722 views
Rating:

What is nanotechnology? Will it change the world, as some have promised? What is all this about molecular machines in our blood? Let the Next Big Thing video on Nanotechnology explain all!

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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
Rating:

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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00:35:00

Ram Rao

by Ram Rao
Ram Rao
for 18-22 and upwards,
Interviews | 18-22 and upwards | 15 years ago | 2121 views
Rating:

Prof. C.N.R. Rao was born and brought up in Bangalore, India where he developed his interest in science. He studied for his Ph.D at Purdue University in the US but returned to India to continue his career. He has had numerous visiting positions abroa....

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00:33:00

George Gray

by George Gray
George Gray
for 14-19 and upwards,
Lectures | 14-19 and upwards | 15 years ago | 2380 views
Rating:

George Gray has contributed fundamentally to the research and development of liquid crystal materials which comprise the Liquid Crystal Displays (LCD) that are so essential to today's information based society. He created and systematized the liquid ....

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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
Rating:

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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00:14:00

Quantum Chemist

by Keith Hughes
Quantum Chemist
for 18-22 and upwards,
Careers | 18-22 and upwards | 15 years ago | 3021 views
Rating:

Dr. Keith Hughes left school at 16 with no science qualifications to become a Paratrooper in the British Army. After qualifying and spending four years serving his country, he decided to leave the army to pursue a chemistry degree and now is now an a....

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00:14:00

The Molecular Gastronomer to the best restaurant in the World

by Rachel Edwards-Stuart
The Molecular Gastronomer to the best restaurant in the World
for 14-19 and upwards,
Lectures | 14-19 and upwards | 15 years ago | 1343 views
Rating:

Twenty three year old Rachel is a Cambridge trained biochemist who has been taken on by Heston Blumenthal, owner of the Fat Duck at Bray, to carry out research for her PhD into the molecular make up of flavours and how they can be applied to food in ....

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01:00:00

The Chemistry of Interstellar Space

by Bill Klemperer
The Chemistry of Interstellar Space
for 18-22 and upwards,
Lectures | 18-22 and upwards | 15 years ago | 1723 views
Rating:

Radioastronomical observations of our galaxy have revealed hordes of molecules in the interstellar medium. Extremely fast reactions result in the high abundance of complex organic compounds in the space between the stars. Amazingly, the key to all th....

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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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00:26:00

Constructing Chemical Formulas

by Colin Byfleet
Constructing Chemical Formulas
for 14-19 and upwards,
Lectures | 14-19 and upwards | 15 years ago | 18539 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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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 | 15 years ago | 2102 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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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 | 15 years ago | 2696 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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00:11:00

Energy Challenges: Power from Hydrogen

by Jeff Whalen
Energy Challenges: Power from Hydrogen
for 18-22 and upwards,
Postgraduate presentations | 18-22 and upwards | 15 years ago | 1981 views
Rating:

We are faced with energy challenges and the promise of power with hydrogen. The fuel cell and solid state hydrogen storage methodologies are currently limited by materials and represent the cutting edge of energy technology. Implementation to a real ....

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00:07:00

Multi-Catalyst Systems

by Suzanne Opalka
Multi-Catalyst Systems
for 14-19 and upwards,
Postgraduate presentations | 14-19 and upwards | 15 years ago | 2112 views
Rating:

Many products you use everyday are the direct result of synthetic innovation in organic chemistry. The McQuade group is interested designing catalysts to aid in more efficient synthetic transformations. n We are especially interested in the effect of....

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00:14:00

Sudden Cardiac Death Studied in a Petri Dish

by Zulma Jimenez
Sudden Cardiac Death Studied in a Petri Dish
for 18-22 and upwards,
Postgraduate presentations | 18-22 and upwards | 15 years ago | 1616 views
Rating:

Some heart arrhythmias are produced by the presence of additional pacemakers in the heart. Those pacemakers are death tissues or scars that trap electrical waves. As an analogy, we pinned scroll waves to obstacles using the Belousov-Zhabotinsky react....

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00:07:00

Fun growing new materials and exploring their properties and applications

by Mekhala Pati
Fun growing new materials and exploring their properties and applications
for 18-22 and upwards,
Postgraduate presentations | 18-22 and upwards | 15 years ago | 1468 views
Rating:

We have synthesized different alkali metal peroxychromates and K3NbO8 doped with K3CrO8crystals based on rare oxidation state of Chromium (V).We have studied their spectroscopic properties using EPR and pulsed EPR. Coherent spin manipulation on Cr+5 ....

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00:11:00

Complex Mixture Analysis by FT-Ion Cyclotron Resonance Mass Spectrometry

by Amy McKenna
Complex Mixture Analysis by FT-Ion Cyclotron Resonance Mass Spectrometry
for 14-19 and upwards,
Lectures | 14-19 and upwards | 15 years ago | 1899 views
Rating:

The ultrahigh mass resolving power and sub-ppm mass accuracy of Fourier transform ion cyclotron resonance mass spectrometry (FT-ICR MS) allow the assignment of a unique molecular formula to each peak in the mass spectrum. Ionization methods for petro....

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00:04:00

Advancements and improvements to etherification and olefination reactions

by Susana Lopez
Advancements and improvements to etherification and olefination reactions
for 22 and upwards,
Postgraduate presentations | 22 and upwards | 15 years ago | 8419 views
Rating:

Etherification and olefination reactions play an important role in synthetic organic chemistry on a daily basis. As organic chemists we apply these methods to tackle synthetic targets of ever increasing complexity. As a graduate student in the Dudley....

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00:08:00

Bridges with Organic Chemistry

by Kerry Gilmore
Bridges with Organic Chemistry
for 22 and upwards,
Postgraduate presentations | 22 and upwards | 15 years ago | 5951 views
Rating:

The development of reliable molecular scale building blocks for the construction of nanoscale devices is one of the greatest challenges for the development of numerous applications of these exciting materials. This research describes our efforts in t....

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01:00:00

In conversation with Michael Kasha

by Harry Kroto
In conversation with Michael Kasha
for All ages,
Interviews | All ages | 15 years ago | 4094 views
Rating:

Nobel laureate, Harry Kroto, interviews Michael Kasha, who has had a distinguished career in science. He was at Berkeley during the Manhattan Project, worked as a graduate student with G N Lewis, is a member of the National Academy of Sciences and ha....

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00:56:00

Chemistry and Astronomy: Unification of Sciences

by Takeshi Oka
Chemistry and Astronomy: Unification of Sciences
for 22 and upwards,
Lectures | 22 and upwards | 15 years ago | 1666 views
Rating:

Takeshi Oka, Professor of Astronomy at the University of Chicago and discoverer of H3(+), positively ionised molecule of three protons, talks about the ways in which the various aspects of science are are all interlocked. In particular he shows the ....

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00:52:00

Powering the Planet

by Dan Nocera
Powering the Planet
for 18-22 and upwards,
Lectures | 18-22 and upwards | 15 years ago | 1654 views
Rating:

Dan Nocera of MIT gives a review of the world's current power demand and projects it forward to 2030. By using readily available data he shows that providing the increase needed is remarkably difficult given the need to restrict the production of ca....

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00:02:00

A Revolution in Solar Energy Production

by Dan Nocera
A Revolution in Solar Energy Production
for All ages,
Lectures | All ages | 15 years ago | 1476 views
Rating:

Dan gives a brief introduction into his group's discovery of a new and efficient catalyst which could be of vital importance in our search for better ways of capturing solar energy.

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01:01:00

Nanotechnology

by Harry Kroto
Nanotechnology
for 18-22 and upwards,
Lectures | 18-22 and upwards | 15 years ago | 2287 views
Rating:

A presentation about the importance of nanoscience (chemistry) and its links with technology in the 21st century.

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00:05:00

Nanoscale Polyelectrolyte O(organic)LED

by Lara Al-Hariri
Nanoscale Polyelectrolyte O(organic)LED
for 22 and upwards,
Lectures | 22 and upwards | 16 years ago | 2052 views
Rating:

The advantages and problems of organic light emitting diodes. Synthetic polyelectroltye methods are described.

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00:04:00

Polyelectrolyte Multilayers Controlling Protein Adsorption etc.

by Maroun D Moussallem
Polyelectrolyte Multilayers Controlling Protein Adsorption etc.
for 22 and upwards,
Lectures | 22 and upwards | 16 years ago | 1410 views
Rating:

A7r5 smooth muscle cells cultured on different polyelectrolyte multilayer (PEMU) thin films behaved differently. Cells Adhered and spread well on nafion terminated PEMUs, they attached less and migrated more on poly(allylamine hydrochloride) (PAH) te....

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00:31:00

Resistivity – A New Look

by Ralph Dougherty
Resistivity – A New Look
for 22 and upwards,
Lectures | 22 and upwards | 16 years ago | 1456 views
Rating:

The importance of electron orbital angular momentum in the processes that contribute to resistivity.

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00:10:00

Secret Science – Invisible Ink

by Steve Acquah
Secret Science – Invisible Ink
for 11-14 and upwards,
Lectures | 11-14 and upwards | 16 years ago | 1840 views
Rating:

An introduction to acids and bases using simple kitchen equipment and some 'invisible ink'.

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00:07:00

Synthesis of Stable, Water Soluble Gold Colloids

by Layal L Rouhana
Synthesis of Stable, Water Soluble Gold Colloids
for 22 and upwards,
Lectures | 22 and upwards | 16 years ago | 2471 views
Rating:

Ligand exchange reactions were utilized in the production of aggregation-resistant gold nanoparticles, having an average diameter of 5 nm, comprising a gold core capped with a mixed shell of citrate and zwitterionic ligands. The prepared nanoparticl....

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00:29:00

ACS Richard Smalley Eulogy

by Harry Kroto
ACS Richard Smalley Eulogy
for All ages,
Lectures | All ages | 16 years ago | 2540 views
Rating:

A moving address by Harry to the ACS meeting in San Francisco about his colleague and fellow Nobel Prize winner, Richard Smalley.

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00:09:00

Motion at Interfaces

by Prajnaparamita Dhar
Motion at Interfaces
for 14-19 and upwards,
Postgraduate presentations | 14-19 and upwards | 16 years ago | 1532 views
Rating:

This talk is aimed primarily at young children and expresses my enthusiasm and my love for science. Its an attempt at expressing that Science is fun. I talk about some of the experiments done as part of my graduate work. Strategies for achieving guid....

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00:27:00

Architecture in Nanospace

by Harry Kroto
Architecture in Nanospace
for 14-19 and upwards,
Lectures | 14-19 and upwards | 16 years ago | 2220 views
Rating:

A brief history of carbon-60 and its developments into useful materials. How can chemistry help move us towards a more sustainable existence.

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00:05:00

What are we made of?

by Harry Kroto
What are we made of?
for 11-14 and upwards,
Lectures | 11-14 and upwards | 16 years ago | 2018 views
Rating:

Development of the ideas which persuaded us to accept the theory of atoms and molecules as constituents of matter.

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01:08:00

Organic Synthesis and Methodology – Inspired by Natural Products

by Gregory Dudley
Organic Synthesis and Methodology – Inspired by Natural Products
for 22 and upwards,
Lectures | 22 and upwards | 16 years ago | 2583 views
Rating:

Prof Gregory Dudley presents on a research program developing under his direction at Florida State University. The research program is centered in synthetic organic chemistry, with a specific emphasis on electrophilic coupling and C-C bond cleavage ....

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01:07:00

Systems Chemistry: How can reactions shape the macroscopic world?

by Oliver Steinbock
Systems Chemistry: How can reactions shape the macroscopic world?
for 22 and upwards,
Lectures | 22 and upwards | 16 years ago | 1623 views
Rating:

Abstract: 21st century chemistry is slowly expanding its concepts into the realm of supermolecular phenomena. However, few tools exist for explaining, creating and controlling complex macroscopic structures and dynamics. In this talk, I discuss our....

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00:28:00

The Discovery of Element 101

by Colin Byfleet
The Discovery of Element 101
for All ages,
Interviews | All ages | 16 years ago | 4350 views
Rating:

A first-hand interview of the moment of this discovery from Greg Choppin who worked with Glen Seaborg.

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00:09:00

Swelling and Doping of Polyelectrolyte Multilayers and Application

by Claudiu B Bucur
Swelling and Doping of Polyelectrolyte Multilayers and Application
for 22 and upwards,
Lectures | 22 and upwards | 16 years ago | 1921 views
Rating:

Thin polymer films are doped with electrolytes to produce novel effects.

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00:06:00

Secret Science – Chromatography

by Steve Acquah
Secret Science – Chromatography
for 11-14 and upwards,
Lectures | 11-14 and upwards | 23 years ago | 2057 views
Rating:

Separating colours by science

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