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00:28:00

C60+ in space – a 28-year detective story about the Diffuse Interstellar Bands – Part 1

by John Maier
C60+ in space – a 28-year detective story about the Diffuse Interstellar Bands – Part 1
for 14-19 and upwards,
Lectures | 14-19 and upwards | 8 years ago | 5776 views
Rating:

John Maier, Professor of Physical Chemistry at the University of Basel, describes the journey from the prediction of C60+ in 1987, through tentative assignment of its electronic spectrum by Radioastronomy, measurement in a neon-matrix and finally, in....

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00:31:00

The Origins of Cellular Life

by Jack Szostak
The Origins of Cellular Life
for 18-22 and upwards,
Lectures | 18-22 and upwards | 8 years ago | 1612 views
Rating:

The complexity of modern biological life has long made it difficult to understand how life could emerge spontaneously from the chemistry of the early earth. We are attempting to synthesize simple artificial cells in order to discover plausible pathwa....

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00:29:00

From Proto-oncogenes to Precision Oncology

by Harold Varmus
From Proto-oncogenes to Precision Oncology
for 18-22 and upwards,
Lectures | 18-22 and upwards | 8 years ago | 1814 views
Rating:

The diagnosis, classification, and treatment of human cancers are being transformed by scientific discoveries that were strongly influenced by the discovery of the c-src proto-oncogene, as described in the lecture by Michael Bishop. The path to this ....

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01:05:00

Continental loss: the quest to determine Antarctica’s contribution to sea-level change

by Matt King
Continental loss: the quest to determine Antarctica’s contribution to sea-level change
for 14-19 and upwards,
Lectures | 14-19 and upwards | 8 years ago | 1561 views
Rating:

For over 50 years scientists have been working to understand Antarctica’s contribution to sea level. For much of this time there has even been disagreement about if this massive ice sheet is growing or shrinking. In 2012, advances in data analysis....

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00:05:00

Fuel Cells – Main Aspects

by Alfonso Felipe
Fuel Cells – Main Aspects
for 18-22 and upwards,
Lectures | 18-22 and upwards | 9 years ago | 1397 views
Rating:

Fundamental aspects and properties of fuel cells in the environment of renewables.

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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 | 1313 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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00:32:00

Cultural Values of Scientific Knowledge

by Werner Arber
Cultural Values of Scientific Knowledge
for 18-22 and upwards,
Lectures | 18-22 and upwards | 9 years ago | 2868 views
Rating:

The acquisition of scientific knowledge largely depends on the availability of appropriate research approaches and methodologies. Novel scientific knowledge represents cultural values. On the one hand, it enriches our world-view with impacts on our....

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00:31:00

The Future of Life

by Christian de Duve
The Future of Life
for 18-22 and upwards,
Lectures | 18-22 and upwards | 9 years ago | 1349 views
Rating:

Ever since its first appearance, more than 3.5 billion years ago, life has evolved without guiding plan, propelled by: 1) its own intrinsic properties, which, with the help of outside energy, provided the necessary driving force; 2) accidental geneti....

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00:35:00

Updated Notions on Darwinian Evolution

by Werner Arber
Updated Notions on Darwinian Evolution
for 18-22 and upwards,
Lectures | 18-22 and upwards | 9 years ago | 1408 views
Rating:

Charles Darwin had based his theory of biological evolution on the observation that phenotypic variants of a given species can sometimes over-grow their parental population, and he attributed this to selective advantage, i.e., to the impact of natura....

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00:41:00

Climbing the Everest Beyond the Everest

by Ada Yonath
Climbing the Everest Beyond the Everest
for 18-22 and upwards,
Lectures | 18-22 and upwards | 9 years ago | 1724 views
Rating:

The challenges associated with pursuing ribosomal crystallography can be described as a series of Everest climbing. At each step, when reaching the summit, a taller and more difficult one became exposed. Snapshots of this story will be described.__....

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00:31:00

Biological Evolution in the Context of Cosmic Evolution and of Cultural Evolution

by Werner Arber
Biological Evolution in the Context of Cosmic Evolution and of Cultural Evolution
for 18-22 and upwards,
Lectures | 18-22 and upwards | 9 years ago | 1589 views
Rating:

After reconsidering the very long time periods in cosmic evolution, we will focus our attention to the evolutionary development of living organisms on our planet Earth. The genetic variants (mutations), which are occasionally produced, are alteratio....

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00:32:00

Man vs. Helicobacter _ The past 50,000 years and the next 50

by Barry Marshall
Man vs. Helicobacter _ The past 50,000 years and the next 50
for 18-22 and upwards,
Lectures | 18-22 and upwards | 9 years ago | 1622 views
Rating:

The epidemiology of Helicobacter pylori continues to be an area of discovery and controversy in the 21st century. The transmission of this bacterium from mother to child allows Helicobacter DNA to mimic the evolution of maternal mitochondria DNA. B....

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00:39:00

Molecular Catalysis for Green Chemistry

by Ryoji Noyori
Molecular Catalysis for Green Chemistry
for 18-22 and upwards,
Lectures | 18-22 and upwards | 9 years ago | 1355 views
Rating:

Science is inevitably intertwined with society.  The state of the art of science, coupled with industrial endeavors, has determined our quality of life.  Chemists are proud of their ability to generate high value from almost nothing by using accumu....

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00:28:00

Canoeing in the Arctic, a Scientist’s Perspective

by Peter Agre
Canoeing in the Arctic, a Scientist’s Perspective
for 18-22 and upwards,
Lectures | 18-22 and upwards | 9 years ago | 1587 views
Rating:

As scientists, our livelihoods are supported by teaching and research, but we also have the opportunity to make observations beyond our usual confines and share these with non-scientific citizens. Growing up in my native state of Minnesota, I have al....

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00:31:00

Chemistry: the Key to Our Future

by Ryoji Noyori
Chemistry: the Key to Our Future
for 18-22 and upwards,
Lectures | 18-22 and upwards | 9 years ago | 1386 views
Rating:

Chemistry is not merely a science of making observations in order to better understand Nature. Our science is creative and productive, generating substances of very high value from almost nothing. Chemists already have made enormous contribution to....

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00:34:00

The Science and Policy of Climate Change

by Mario Molina
The Science and Policy of Climate Change
for 18-22 and upwards,
Lectures | 18-22 and upwards | 9 years ago | 935 views
Rating:

Climate change is the most serious environmental challenge facing society in the 21st century.  The basic science is clear: the International Panel on Climate Change concluded that there is more than 90% probability that human activities are causing....

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00:29:00

The Ubiquitin Proteolytic System as a Novel Drug Development Platform

by Aaron Ciechanover
The Ubiquitin Proteolytic System as a Novel Drug Development Platform
for 18-22 and upwards,
Lectures | 18-22 and upwards | 9 years ago | 1689 views
Rating:

Between the 50s and 80s, most studies in biomedicine focused on the central dogma - the translation of the information coded by DNA to RNA and proteins.  Protein degradation was a neglected area, considered to be a non-specific, dead-end process.  ....

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00:30:00

Catalysis at Surfaces: From Atoms to Complexity

by Gerhard Ertl
Catalysis at Surfaces: From Atoms to Complexity
for 18-22 and upwards,
Lectures | 18-22 and upwards | 9 years ago | 1436 views
Rating:

Catalysis by solid surfaces is, among others, of importance for the chemical industry (e.g. the Haber-Bosch process) as well as for environmental chemistry (car exhaust catalyst).  Surface physical techniques enable investigation of the underlying e....

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00:31:00

Green Chemistry and Catalysis

by Robert Grubbs
Green Chemistry and Catalysis
for 18-22 and upwards,
Lectures | 18-22 and upwards | 9 years ago | 1196 views
Rating:

Much of the chemical industry is based on processes that were developed decades ago.  The change in the cost of petroleum carbon and energy sources and the need to control emissions of carbon dioxide and other pollutants will change the rules of the....

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00:38:00

Cultural Values of Scientific Knowledge

by Werner Arber
Cultural Values of Scientific Knowledge
for 18-22 and upwards,
Lectures | 18-22 and upwards | 9 years ago | 1456 views
Rating:

The acquisition of scientific knowledge largely depends on the availability of appropriate research approaches and methodologies.  Novel scientific knowledge represents cultural values.  On the one hand, it enriches our world-view with impacts on o....

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00:31:00

Controlling Photons in a Box and Exploring the Quantum to Classical Boundary

by Serge Haroche
Controlling Photons in a Box and Exploring the Quantum to Classical Boundary
for 18-22 and upwards,
Lectures | 18-22 and upwards | 9 years ago | 1715 views
Rating:

The founders of quantum theory assumed in 'thought experiments' that they were manipulating isolated quantum systems, obeying the counterintuitive laws which they had just discovered.  Technological advances have recently turned these virtual experi....

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01:01:00

How embryos build organs to last a lifetime

by Brigid Hogan
How embryos build organs to last a lifetime
for 14-19 and upwards,
Lectures | 14-19 and upwards | 9 years ago | 1065 views
Rating:

All the organs of our body originate from small founder populations of cells which multiply into complex structures. ÊAdult stem cells are used to maintain organs throughout adult life and to repair or regenerate them after damage.Ê Focusing on the....

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00:01:00

A Greenhouse-Gas Experiment

by Jonathan Hare
A Greenhouse-Gas Experiment
for 14-19 and upwards,
Lectures | 14-19 and upwards | 10 years ago | 1899 views
Rating:

A laboratory demonstration of Carbon Dioxide's effect of global warming.

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00:50:00

Epigenetics, Diet and Cancer Prevention

by Roderick Dashwood
Epigenetics, Diet and Cancer Prevention
for 18-22 and upwards,
Lectures | 18-22 and upwards | 10 years ago | 1445 views
Rating:

How genes can be switched on and off by environmental effects and how this affects the development of cancers.

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