Biggest recent mistakes in physics or any science.

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The discussion revolves around the evolution of scientific understanding and the accuracy of historical scientific texts, particularly the CRC Chemistry and Physics Handbook. Participants reflect on how past scientific conclusions, such as the age of the Earth and the role of RNA, have been refined with advancements in technology and research. They highlight significant shifts in biology, such as the re-evaluation of "junk DNA," and in particle physics, where neutrinos were once thought to be massless. The conversation also touches on notable scientific miscalculations, like the misjudgment of the yield in the Castle Bravo nuclear test, and the implications of overhyped scientific claims, such as the arsenic-tolerant bacteria study. Overall, the thread emphasizes the ongoing nature of scientific inquiry and the importance of adapting to new findings.
  • #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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