108 results found for Various

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00:04:00

Wingtip Vortices

by Various
Wingtip Vortices
for 14-19 and upwards,
Highschool presentations | 14-19 and upwards | 7 years ago | 11 views
Rating:

A very well-explained description of the theory of lift and of how the energy-sapping wingtip vortices are created in aircraft flight. This talk was the runner-up in the 2016 Kroto Prize for Innovative Use of Technology in Science Learning. More details | Watch now

00:31:00

Minimizing a Bacterial Genome by Global Design and Synthesis

by Hamilton Smith
Minimizing a Bacterial Genome by Global Design and Synthesis
for 18-22 and upwards,
Lectures | 18-22 and upwards | 8 years ago | 2140 views
Rating:

In 2010, we chemically synthesized the 1078 Kb Mycoplasma mycoides genome and transplanted it into a recipient cell cytoplasm to create a 'synthetic cell', JCVI-syn1.0 (Science, 329, 52-56, 2010). We identified several hundred non-essential genes by ....

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00:39:00

Role of Nitric Oxide and Cyclic GMP in Cell Signaling and Drug Development

by Ferid Murad
Role of Nitric Oxide and Cyclic GMP in Cell Signaling and Drug Development
for 18-22 and upwards,
Lectures | 18-22 and upwards | 8 years ago | 1778 views
Rating:

Nitric oxide research has grown rapidly with about 150,000 research publications describing its biological effects. It is an important messenger molecule that affects most tissues and biological processes. Many effects of nitric oxide are mediated by....

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00:31:00

The Adventure of Cold Atoms. From Optical Pumping to Quantum Gases

by Claude Cohen-Tannoudji
The Adventure of Cold Atoms. From Optical Pumping to Quantum Gases
for 18-22 and upwards,
Lectures | 18-22 and upwards | 8 years ago | 1328 views
Rating:

Conservation laws are very important in quantum physics. Two examples of applications will be given. First, optical pumping which uses transfer of angular momentum from polarized photons to atoms to produce highly polarized atomic gases. Then, laser ....

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00:33:00

What About Redefining Time Using a Stable Laser?

by John Hall
What About Redefining Time Using a Stable Laser?
for 18-22 and upwards,
Lectures | 18-22 and upwards | 8 years ago | 1386 views
Rating:

Several laser-based Atomic Clocks now have an accuracy potential of ~2 x10-18, a hundred-fold better than the best achieved after more than 60 years' experience with rf resonances in Cs atoms. Still, this long attention span documents that the Cs Fou....

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00:31:00

Where am I From? Where Are You Going?

by Ryoji Noyori
Where am I From? Where Are You Going?
for 18-22 and upwards,
Lectures | 18-22 and upwards | 8 years ago | 1363 views
Rating:

Scientific research is a never-ending 'journey of knowledge'. There is more meaning in experiencing various encounters and making a good journey itself than reaching the destination. Basic science has eternal cultural value; it has served to heighten....

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00:04:00

The Science of Chillies

by Various Presenters
The Science of Chillies
for 14-19 and upwards,
Highschool presentations | 14-19 and upwards | 8 years ago | 1864 views
Rating:

These things are HOT! - and have a variety of biochemical effects.

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00:05:00

What goes up must come down

by Various Presenters
What goes up must come down
for 14-19 and upwards,
Highschool presentations | 14-19 and upwards | 8 years ago | 1635 views
Rating:

A fascinating discussion between two humanoids about the mystery force of gravity.

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00:06:00

Soil Recovery by Re-use

by Akira Ise
Soil Recovery by Re-use
for 14-19 and upwards,
Highschool presentations | 14-19 and upwards | 8 years ago | 1600 views
Rating:

Aki decribes her experiments in improving soils using various buffering materials.

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00:05:00

Solar Energy

by Various Presenters
Solar Energy
for 11-14 and upwards,
Highschool presentations | 11-14 and upwards | 8 years ago | 1579 views
Rating:

Sophie and Stephanie take a light-hearted look at solar energy.

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00:06:00

Genetic Engineering

by Various Presenters
Genetic Engineering
for 11-14 and upwards,
Highschool presentations | 11-14 and upwards | 8 years ago | 0 views
Rating:

A discussion of the problems caused by genetic engineering.

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00:05:00

A-maizing Hydrogen

by Various Presenters
A-maizing Hydrogen
for 11-14 and upwards,
Highschool presentations | 11-14 and upwards | 8 years ago | 1844 views
Rating:

Hydrogen - the fuel of the future?

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01:10:00

Bacterial cell walls, antibiotics and the origins of life

by Jeff Errington
Bacterial cell walls, antibiotics and the origins of life
for 14-19 and upwards,
Lectures | 14-19 and upwards | 8 years ago | 1247 views
Rating:

The cell wall is a crucial structure found in almost all bacteria. It is the target for our best antibiotics and fragments of the wall trigger powerful innate immune responses against infection. Surprisingly, many bacteria can switch almost effortl....

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01:31:00

Tackling the great challenges of the 21st century

by Various Presenters
Tackling the great challenges of the 21st century
for 14-19 and upwards,
Discussions | 14-19 and upwards | 8 years ago | 1664 views
Rating:

Sir Paul Nurse, President of the Royal Society and Lord Stern, President of the British Academy, discussed the new opportunities – and need – for collaboration between the traditional academic disciplines to respond to the big issues of our time,....

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01:31:00

Ebola: inside an epidemic

by Various Presenters
Ebola: inside an epidemic
for 14-19 and upwards,
Discussions | 14-19 and upwards | 8 years ago | 0 views
Rating:

Find out what we have learnt from the outbreak so far (March 2015) and what is being done to ensure continued resilience to epidemic scenarios.

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01:26:00

Women writing science

by Various Presenters
Women writing science
for 14-19 and upwards,
Discussions | 14-19 and upwards | 8 years ago | 0 views
Rating:

Join us as we celebrate International Women’s Day by exploring the history of women writing about science.  How did early women scientists use writing in order to further their careers? In which ways were they limited by their gender? What influen....

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00:07:00

Can nanocrystals stop the climate change?

by Frank Riehle
Can nanocrystals stop the climate change?
for 14-19 and upwards,
Lectures | 14-19 and upwards | 8 years ago | 2711 views
Rating:

Fossil resources are limited and their CO2 emission strongly contributes to the global warming which is mainly responsible for the increasing appearance of natural catastrophes. Renewable biomass which can be converted into various forms of usable en....

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00:09:00

The biology of Striga

by Various
The biology of Striga
for 14-19 and upwards,
Lectures | 14-19 and upwards | 9 years ago | 1840 views
Rating:

One of the major parasites is striga, a weed that sucks the juice and nutrients from cereal crops such as millet, sorghum and maize and causes great yield losses. A single striga plant can produce hundreds of thousands of seeds. The seeds are so tiny....

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00:12:00

‘Witch Weed’ – breaking the spell

by Various
‘Witch Weed’ – breaking the spell
for 14-19 and upwards,
Lectures | 14-19 and upwards | 9 years ago | 2781 views
Rating:

Striga (witchweed) is a parasitic weed that seriously constrains the productivity of staples such as maize, sorghum, millet and upland rice on some farms in Uganda.  Kilimo Trust supported this initiative to try and control its spread.

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00:08:00

Human Memory

by Ann Garry
Human Memory
for 14-19 and upwards,
Highschool presentations | 14-19 and upwards | 9 years ago | 1798 views
Rating:

A look at the various ways we store and information.

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01:08:00

Writing wrongs – Rachel Carson, Silent Spring

by Various
Writing wrongs – Rachel Carson, Silent Spring
for 14-19 and upwards,
Discussions | 14-19 and upwards | 9 years ago | 1314 views
Rating:

What role do literature, science and policy play in protecting the planet? Fifty years since the death of conservationist Rachel Carson, we look at her masterpiece Silent Spring, and ask: "What have we learnt? Listen to our panel of experts: author ....

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00:45:00

On the Genetic Basis of Morphological Evolution

by Christiane Nusslein-Volhard
On the Genetic Basis of Morphological Evolution
for 18-22 and upwards,
Lectures | 18-22 and upwards | 9 years ago | 1202 views
Rating:

Darwin's theory of evolution states that variation of the shape and pattern of the adults rather than the embryos are the basis for natural selection. In order to understand how morphological variation arises, it is important to identify the genes th....

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00:30:00

From the Structure of the Ribosome to the Design of New Antibiotics

by Thomas Steitz
From the Structure of the Ribosome to the Design of New Antibiotics
for 18-22 and upwards,
Lectures | 18-22 and upwards | 9 years ago | 1756 views
Rating:

Structural studies of the ribosome exemplify the evolution of structural studies in cell biology from the early negatively stained images of macromolecular assemblies in whole cells, to a detailed atomic understanding of the mechanism of action of a ....

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00:29:00

Protein Cross Talk in Cell Signaling

by Edmond Fischer
Protein Cross Talk in Cell Signaling
for 18-22 and upwards,
Lectures | 18-22 and upwards | 9 years ago | 1319 views
Rating:

The main focus of the talk will be on signaling by tyrosine phosphorylation, which has been directly implicated in the regulation of cell growth, differentiation and transformation. External signals coming in the form of mitogenic hormones and growt....

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