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What is Search for a variation of fundamental constants about?

Here is the podcast description for Search for a variation of fundamental constants:

Since the days of Dirac scientists have speculated about the possibility that the laws of nature, and the fundamental constants appearing in those laws, are not rock-solid and eternal but may be subject to change in time or space. Such a scenario of evolving constants might provide an answer to the deepest puzzle of contemporary science, namely why the conditions in our local Universe allow for extreme complexity: the fine-tuning problem. In the past decade it has been established that spectral lines of atoms and molecules, which can currently be measured at ever-higher accuracies, form an ideal test ground for probing drifting constants. This has brought this subject from the realm of metaphysics to that of experimental science. In particular the spectra of molecules are sensitive for probing a variation of the proton-electron mass ratio m, either on a cosmological time scale, or on a laboratory time scale. A comparison can be made between spectra of molecular hydrogen observed in the laboratory and at a high redshift (z=2-3), using the Very Large Telescope (Paranal, Chile) and the Keck telescope (Hawaii). This puts a constraint on a varying mass ratio Δμ/μ at the 10-5 level. The optical work can also be extended to include CO molecules. Further a novel direction will be discussed: it was discovered that molecules exhibiting hindered internal rotation have spectral lines in the radio-spectrum that are extremely sensitive to a varying proton-electron mass ratio. Such lines in the spectrum of methanol were recently observed with the radio-telescope in Effelsberg (Germany).

How many episodes of Search for a variation of fundamental constants exist?

As of Aug 16th, 2025, Search for a variation of fundamental constants has published 1 episodes.

When was the latest episode of Search for a variation of fundamental constants?

The latest episode of Search for a variation of fundamental constants was published on Mar 13th, 2013

When did Search for a variation of fundamental constants launch?

Search for a variation of fundamental constants launched its first episode on Mar 13th, 2013.

Is Search for a variation of fundamental constants explicit?

The content of Search for a variation of fundamental constants is not explicit.

Who is the author of Search for a variation of fundamental constants?

Search for a variation of fundamental constants is created by Universität Innsbruck.

Which podcast categories does Search for a variation of fundamental constants belong to?

Search for a variation of fundamental constants belongs to the following podcast categories:

Education

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Search for a variation of fundamental constants is hosted on Unknown.

Search for a variation of fundamental constants

Universität Innsbruck
Search for a variation of fundamental constants

Search for a variation of fundamental constants

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Search for a variation of fundamental constants

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Frequently Asked Questions about Search for a variation of fundamental constants

How do I contact Search for a variation of fundamental constants?

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Does Search for a variation of fundamental constants accept guest interviews?

How much does it cost to advertise on Search for a variation of fundamental constants?

Where does Search for a variation of fundamental constants rank on Apple Podcasts charts?

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What is Search for a variation of fundamental constants about?

How many episodes of Search for a variation of fundamental constants exist?

When was the latest episode of Search for a variation of fundamental constants?

When did Search for a variation of fundamental constants launch?

Is Search for a variation of fundamental constants explicit?

Who is the author of Search for a variation of fundamental constants?

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Universität Innsbruck
Search for a variation of fundamental constants

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