What Is the Significance of PF Signatures in Historical Physics Debates?

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In summary, Physics did not begin in London in 1686, but 2 centuries later in 1874 in Kristiania with the discovery of equations by Newton and the establishment of invariants by Lie.
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dextercioby
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Physics did not begin in London in 1686. It began 2 centuries later in 1874 in Kristiania.
@fresh_42 Sorry for the blatant off-topic, please explain this text in your signature. Thanks!

Physics did not begin in London in 1686. It began 2 centuries later in 1874 in Kristiania.
 
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  • #2
dextercioby said:
Physics did not begin in London in 1686. It began 2 centuries later in 1874 in Kristiania.
@fresh_42 Sorry for the blatant off-topic, please explain this text in your signature. Thanks!
1686 was Newton, but 1874 was Lie.
 
  • #3
Aaa, 1686 was what? Principia was published in 1687. And 1874 is the birth year of Sophus Lie, right?
 
  • #4
dextercioby said:
Aaa, 1686 was what? Principia was published in 1687.
1677856173231.png

dextercioby said:
And 1874 is the birth year of Sophus Lie, right?
https://www.physicsforums.com/insights/when-lie-groups-became-physics/
 
  • #5
Oh, the irony/controversy.
Capture.JPG
 
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Likes pinball1970 and fresh_42
  • #6
It might be the final manuscript date vs. the publication year.

I had no idea Samuel Pepys was involved. Whaddaya know.
 
  • #7
dextercioby said:
Oh, the irony/controversy.
Maybe, it could be summarized as: Newton found the equations, and Lie established the invariants.
 

Related to What Is the Significance of PF Signatures in Historical Physics Debates?

1. What are PF signatures?

PF signatures, also known as protein signatures, are unique sequences of amino acids that are characteristic of a particular protein. They are used to identify and classify proteins based on their structure and function.

2. How are PF signatures determined?

PF signatures are determined through a process called sequence alignment, where the amino acid sequence of a protein is compared to a database of known protein sequences. The similarities and differences between the sequences are then used to identify and define the signature for that protein.

3. What do PF signatures tell us about a protein?

PF signatures provide information about the structure and function of a protein. They can help identify the protein's role in cellular processes, its interactions with other proteins, and its potential functions in the body.

4. Can PF signatures be used to predict protein function?

Yes, PF signatures can be used to predict protein function. By comparing a protein's signature to known signatures, scientists can make educated guesses about the protein's function based on its similarities to other proteins with known functions.

5. How are PF signatures used in research?

PF signatures are used in a variety of research fields, including bioinformatics, drug discovery, and evolutionary biology. They can help identify and classify proteins, understand their roles in biological processes, and aid in the development of new treatments for diseases.

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