Astronuc's latest activity
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I too think focusing on the individual steps is misguided. What would be helpful to many students is learning how to read an equation... -
I was listening to a story of a woman who had the generic defect that causes the condition known as Emery-Dreifuss Muscular Dystrophy...
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A northern Arizona (in or near Flagstaff, AZ) resident has died from a case of pneumonic plague...
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I think you could reason that they must have absorbed the 2##\pi## into the cross section. If you look closely, the top expression has...
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##2\pi \int_{-1}^1 d\mu' = 4\pi## we can't write this, in our case because we have a function ##\varphi## that depends on ##\mu## (or...
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Astronuc reacted to PeroK's post in the thread I How does the electron come back down in energy level after absorbing a photon? with
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I suspect the full answer to this question may be quite complicated and that different types of objects have colour for different... -
Astronuc replied to the thread A 56Fe as moderator.Fe isn't exactly a moderator, but it does have a relatively high 'fast neutron removal' cross section, and some reactor designs, e.g...
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Astronuc reacted to pinball1970's post in the thread R.I.P. Sir Francis Graham-Smith 1923- 2025 with
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Andrew Lyne, emeritus professor of radio astronomy at The University of Manchester, said: "Sir Francis was a towering figure in British... -
Astronuc replied to the thread COVID Here comes COVID-19 version BA.2, BA.4, BA.5,....Now we are up to the X's. https://time.com/7300451/new-covid-19-variant-xfg/ Persistent little buggers. XFG has another name...
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Astronuc replied to the thread Modern US locomotive design and operation.Inside a Class 99 – The UK’s Most Powerful Locomotive (Hybrid Electric (8000 hp)/Diesel-Electric (2400 hp)). An electric (from...
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Astronuc replied to the thread Music Who is your favorite Jazz musician and what is your favorite song?.Yet another variation on the Hans Zimmer's Interstellar main theme
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Astronuc replied to the thread Random Photos.The book that sank on the Titanic and burned in the Blitz https://www.bbc.com/news/uk-england-london-57683638 I prefer books without...
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Some more photos from my recent Norway cruise. Day one at sea. First sunset. Bakklandet District in Trondheim. Tromso Botanical Garden.
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A short mallard story... :smile: "Human put corn on a small ledge, should I try it?" "Yes, I'll try it." "Human seems friendly...
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This years road-trip.
