jim mcnamara's latest activity
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jim mcnamara reacted to mpeskin's post in the thread High Energy Possible typo in Peskin & Schroeder's QFT Textbook (p. 666)? with
Like.
Murillo137 is correct. Equation (19.74) is copied from eq. (16.107) of Peskin and Schroeder. But, in Chapter 16, D_mu = (del_mu - ig... -
jim mcnamara reacted to Frabjous's post in the thread I Airplane crash probability fallacy with Like.
The proper death rate for air travel is per trip (majority of crashes take place during takeoff/landing) while for car it is per mile.
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I think the point is that the lack of evidence doesn't only mean that we don't know if the treatment does anything, but also that we...
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jim mcnamara reacted to Borek's post in the thread Very confused about Naunyn definition of acid and base with Like.
I can be wrong, but it seems to me you are trying to understand the definition in terms of our todays understanding of what the acid is...
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jim mcnamara replied to the thread Can you eat the Periodic Table?.I'm pretty sure you would never survive consuming anything synthesized from Polonium, the KGB's favorite assassination tool. A small...
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jim mcnamara reacted to Vanadium 50's post in the thread Other What's the point of a thesis? with Like.
And? I spent 15 years solving one problem. The field spent 49 years determining whether the Higgs mechanism was the correct...
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jim mcnamara reacted to jedishrfu's post in the thread Potentially fatal dog parasite found in the Colorado River with Like.
Texas has a similar dilemma in its waterways where dogs like to swim they get sick and die from a Cyanobacteria, an algae bloom...
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We require f(x) = \frac{x(11-x)}{(x-1)(x - 2)} < 0. The numerator and denominator have no common linear factors, so f changes sign...
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jim mcnamara reacted to Frabjous's post in the thread I Why charge density of moving dipole is dependent on time? with Like.
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jim mcnamara reacted to Steve4Physics's post in the thread Lagrangian Problem (Find Relation between Amplitude and Momentum) with Like.
It may be worth noting that the thread is well over 2 years old!
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jim mcnamara reacted to pinball1970's post in the thread Potentially fatal dog parasite found in the Colorado River with Like.
The paper https://www.mdpi.com/2076-0817/13/3/245 From the introduction. "Heterobilharzia americana is a schistosome trematode endemic...
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jim mcnamara reacted to morrobay's post in the thread Are all biological catabolic reactions exergonic? with Like.
These diagrams illustrate what @Borek said: That is the total net effect , bond breaking/bond formation determines if reaction is endo...
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jim mcnamara reacted to PhysicsRock's post in the thread I Resources on the Derivation of generalized Stokes' theorem with Like.
This is actually brilliant, because Stokes by itself works without a metric, but I'm still supposed to cover how one may appear when...
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jim mcnamara reacted to Borek's post in the thread Are all biological catabolic reactions exergonic? with Like.
Breaking bonds in only part of the process - some steps can be endergonic, yet the process as a whole can be exergonic.