22 results found for microscopy

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00:35:00

Science with Combs of Light

by Theodor Hänsch
Science with Combs of Light
for 18-22 and upwards,
Lectures | 18-22 and upwards | 4 years ago | 885 views
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The spectrum of a frequency comb, commonly generated by a mode-locked femtosecond laser, consists of several hundred thousand precisely evenly spaced spectral lines. Such laser frequency combs have revolutionized the art of measuring the frequency of....

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00:33:00

Nanoscopy – allowing molecules to be examined inside living cells

by Eric Betzig
Nanoscopy – allowing molecules to be examined inside living cells
for 18-22 and upwards,
Lectures | 18-22 and upwards | 4 years ago | 2218 views
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Eric Betzig shared the 2014 Chemistry Nobel prize with fellow American William E. Moerner and Romanian-German Stefan W. Hell for revolutionising science through the development of super-resolved fluorescence to exceed the accepted limits of tradition....

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00:31:00

Seeing is Believing – A Hundred Years of Visualizing Molecules

by Venkatraman Ramakrishnan
Seeing is Believing – A Hundred Years of Visualizing Molecules
for 18-22 and upwards,
Lectures | 18-22 and upwards | 4 years ago | 518 views
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It has been a hundred years since molecules were first visualized directly by using x-ray crystallography. That gave us our first look at molecules as simple as common salt to one as complex as the ribosome that has almost a million atoms. In the las....

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00:28:00

Optical Microscopy – the Resolution Revolution

by Stefan Hell
Optical Microscopy – the Resolution Revolution
for 18-22 and upwards,
Lectures | 18-22 and upwards | 4 years ago | 635 views
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Throughout the 20th century it was widely accepted that a light microscope relying on conventional optical lenses cannot discern details that are much finer than about half the wavelength of light (200-400 nm), due to diffraction. However, in the 199....

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00:39:00

You can see a lot by observing: Optical Microscopy 2.0

by Steve Chu
You can see a lot by observing: Optical Microscopy 2.0
for 18-22 and upwards,
Lectures | 18-22 and upwards | 5 years ago | 796 views
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Biological research and medicine were transformed by the invention and improvement of the optical microscope. Since the early 1990s, there has been another revolution in optical imaging, and manipulation of individual biological molecules and bio-mo....

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00:40:00

The Discovery of Quasi-Periodic Materials

by Dan Schectman
The Discovery of Quasi-Periodic Materials
for 18-22 and upwards,
Lectures | 18-22 and upwards | 5 years ago | 839 views
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Crystallography has been one of the mature sciences.  Over the years, the modern science of crystallography that started by experimenting with x-ray diffraction from crystals in 1912 has developed a major paradigm Ð that all crystals are ordered an....

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00:35:00

Quasi-Periodic Materials – Crystal Redefined

by Dan Schectman
Quasi-Periodic Materials – Crystal Redefined
for 18-22 and upwards,
Lectures | 18-22 and upwards | 5 years ago | 2484 views
Rating:

Crystallography has been one of the mature sciences.  Over the years, the modern science of crystallography that started by experimenting with x-ray diffraction from crystals in 1912, has developed a major paradigm that all crystals are ordered and ....

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00:07:00

The Amazing World of the Microscope

by Michael W. Davidson
The Amazing World of the Microscope
for 11-14 and upwards,
Teaching modules | 11-14 and upwards | 6 years ago | 1459 views
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Microscope expert, Michael W. Davidson of the National High Magnetic Field lab, shares his collection of amazing microscope images to inspire and engage children all around the world.

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00:07:00

Is Nano-Silicon Brittle or Ductile?

by Daiming Tang
Is Nano-Silicon Brittle or Ductile?
for 14-19 and upwards,
Lectures | 14-19 and upwards | 6 years ago | 1203 views
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This presentation compares the mechanical properties of bulk- and nano-silicon.

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00:09:00

Microscopes: what can we really see?

by Samantha Warrington
Microscopes: what can we really see?
for 14-19 and upwards,
Lectures | 14-19 and upwards | 7 years ago | 887 views
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Samantha looks at various types of microscopes and their uses.

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00:31:00

Optical Coherence Tomography : The quest for Contrast

by Steven Matcher
Optical Coherence Tomography : The quest for Contrast
for 18-22 and upwards,
Postgraduate presentations | 18-22 and upwards | 7 years ago | 2574 views
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A survey of this useful technique

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00:03:00

Lensless imaging

by John Rodenburg
Lensless imaging
for 18-22 and upwards,
Lectures | 18-22 and upwards | 7 years ago | 922 views
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John Rodenburg looks at novel ways of capturing highly enlarged images without the use of conventional lenses.

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