Biggest recent mistakes in physics or any science.

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SUMMARY

The forum discussion centers on the evolution of scientific understanding and the significant misconceptions that have been corrected over time. Participants highlight the historical inaccuracies in the age of the Earth, initially estimated by Lord Kelvin, and the advancements in molecular genetics, particularly regarding the role of RNA and the concept of "junk DNA." They also discuss the implications of neutrino mass discoveries and the impact of the Human Genome Project on gene estimates. Overall, the conversation emphasizes that while foundational scientific principles remain, the precision and depth of understanding have dramatically improved.

PREREQUISITES
  • Understanding of basic scientific principles in physics and biology.
  • Familiarity with the Human Genome Project and its findings.
  • Knowledge of neutrino physics and the concept of mass in particle physics.
  • Awareness of historical scientific misconceptions and their corrections.
NEXT STEPS
  • Research the implications of neutrino oscillation on particle physics.
  • Explore the advancements in molecular genetics post-Human Genome Project.
  • Study the historical context of scientific misconceptions, such as the age of the Earth.
  • Investigate the significance of RNA regulation in genetic expression.
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Scientists, educators, and students interested in the evolution of scientific knowledge, particularly in physics and molecular biology, as well as anyone seeking to understand the historical context of scientific errors and advancements.

  • #31
nismaratwork said:
Well, while you're correcting the fellow/lass, maybe mention "intron" and "exon"?

Certainly.

The genome is divided into "Introns" and "Exons". Exons are the part of DNA that actually codes for genes, introns sit in the middle not coding. When a gene is expressed the whole sequence is transcribed into RNA. The introns are then 'sliced' from the RNA leaving just the coding section, this RNA (called messenger RNA) binds with other RNA called Ribosomes, these read the mRNA and build proteins.

Example

deaeg3w4yr r3qtibos3t5ome ple32455ase mareht5ke soge46me pr35bot875ein

This is the DNA, it's faithfully transcribed to RNA which then has the introns removed

dea--(eg3w4y)--r r--(3qt)--ibos--(3t5)--ome ple--(32455)--ase ma--(reht5)--ke so--(ge46)--me pr--(35b)--ot--(875)--ein

to become...

dear ribosome please make some protein
 
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  • #32
ryan_m_b said:
Certainly.

The genome is divided into "Introns" and "Exons". Exons are the part of DNA that actually codes for genes, introns sit in the middle not coding. When a gene is expressed the whole sequence is transcribed into RNA. The introns are then 'sliced' from the RNA leaving just the coding section, this RNA (called messenger RNA) binds with other RNA called Ribosomes, these read the mRNA and build proteins.

Example

deaeg3w4yr r3qtibos3t5ome ple32455ase mareht5ke soge46me pr35bot875ein

This is the DNA, it's faithfully transcribed to RNA which then has the introns removed

dea--(eg3w4y)--r r--(3qt)--ibos--(3t5)--ome ple--(32455)--ase ma--(reht5)--ke so--(ge46)--me pr--(35b)--ot--(875)--ein

to become...

dear ribosome please make some protein

re: bolding: :smile:

Heh... thanks Ryan_m_b, artfully said!
 
  • #33
Phrak said:
I have a 1934 edition. What to compare figures?
Yeah, compare the masses of the three pions \pi^{0}, \pi^{+}, and \pi^{-}
 

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