40 results found for spectroscopy

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00:02:00

C60+ in space – a 28-year detective story about the Diffuse Interstellar Bands – Part 5

by Colin Byfleet
C60+ in space – a 28-year detective story about the Diffuse Interstellar Bands – Part 5
for 18-22 and upwards,
Lectures | 18-22 and upwards | 4 years ago | 4194 views
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It seems likely that C60+ will act as a stable site for a wide variety of adducts and that these entities will contribute to the Diffuse Interstellar Bands.  John Maier's group in Basel is looking for species like C60(Fe)+.

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00:03:00

C60+ in space – a 28-year detective story about the Diffuse Interstellar Bands – Part 4

by Colin Byfleet
C60+ in space – a 28-year detective story about the Diffuse Interstellar Bands – Part 4
for 14-19 and upwards,
Lectures | 14-19 and upwards | 4 years ago | 3648 views
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The early (mid 1990s) work on the electronic spectroscopy was carried out by John Maier's group, trapping C60+ in a neon matrix in this apparatus.

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00:02:00

C60+ in space – a 28-year detective story about the Diffuse Interstellar Bands – Part 3

by Colin Byfleet
C60+ in space – a 28-year detective story about the Diffuse Interstellar Bands – Part 3
for 14-19 and upwards,
Lectures | 14-19 and upwards | 4 years ago | 3459 views
Rating:

John Maier's team at the University of Basel solved the riddle of C60+ in 2015.  In this brief view Colin Byfleet looks at the unique apparatus used in John's work.

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00:06:00

C60+ in space – a 28-year detective story about the Diffuse Interstellar Bands – Part 2

by John Maier
C60+ in space – a 28-year detective story about the Diffuse Interstellar Bands – Part 2
for 14-19 and upwards,
Interviews | 14-19 and upwards | 4 years ago | 0 views
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The presentation the solution to this long-standing puzzle occurred at a most serendipitous moment.  John Maier, Professor of Physical Chemistry at the University of Basel reveals the momentous details.

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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 | 4 years ago | 3487 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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00:35:00

A Random Walk in Science

by Steven Chu
A Random Walk in Science
for 18-22 and upwards,
Lectures | 18-22 and upwards | 5 years ago | 1048 views
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I will discuss my random walk in science, from my graduate student on postdoctoral years testing the Weinberg-Salam-Glashow theory of electro-weak forces, and then to energy transfer in condensed matter systems, the spectroscopy of positronium, laser....

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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 | 5 years ago | 965 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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00:26:00

NMR in Biology, Chemistry and Medicine

by Kurt Wurthrich
NMR in Biology, Chemistry and Medicine
for 18-22 and upwards,
Lectures | 18-22 and upwards | 5 years ago | 1028 views
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For the discovery of the physics phenomenon of nuclear magnetic resonance (NMR), Felix Bloch and Edward Purcell were awarded the Nobel Prize in Physics in 1952. NMR has then been used in a wide range of fundamental studies in physics, and in the 1960....

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00:24:00

Bioinspiration: something for everyone

by George Whitesides
Bioinspiration: something for everyone
for 14-19 and upwards,
Lectures | 14-19 and upwards | 5 years ago | 757 views
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George Whitesides is the Woodford L. and Ann A. Flowers University Professor of Chemistry at Harvard University. Best-known for his work in NMR spectroscopy, organometallic chemistry, molecular self-assembly and nanotechnology, here he introduces sof....

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00:17:00

Battery Research

by Annadanesh Shellikeri
Battery Research
for 18-22 and upwards,
Teaching modules | 18-22 and upwards | 5 years ago | 2010 views
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It is hard to believe there was a time before batteries! Batteries and supercapacitors are at the heart of electric vehicles, portable devices (watches, laptops, mobile phones) and renewable resources like wind and solar, for energy storage. Bette....

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00:04:00

Molecular Spectroscopy: Rotational, Vibrational, Electronic All on One Sheet: My ABCÉ System

by Harry Kroto
Molecular Spectroscopy: Rotational, Vibrational, Electronic All on One Sheet: My ABCÉ System
for 14-18 and upwards,
Lectures | 14-18 and upwards | 5 years ago | 1268 views
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Dr. Kroto describes his ABC system for spectroscopy, a systematic method that can be applied to vibrational, rotational, and electronic spectrocopies

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00:05:00

Microwave + Photoelectron Spectroscopy of Thiacarbonyls, Phospha-alkenes and -alkynes, Boron Sulphides C=S, C=P, B=S, etc.

by Harry Kroto
Microwave + Photoelectron Spectroscopy of Thiacarbonyls, Phospha-alkenes and -alkynes, Boron Sulphides C=S, C=P, B=S, etc.
for 14-18 and upwards,
Lectures | 14-18 and upwards | 5 years ago | 4971 views
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