Astronuc's latest activity
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Astronuc reacted to BWV's post in the thread High School Uracil found in carbonaceous asteroid with
Like.
Extraterrestrial origin of a sample of Uracil, one of the four bases of RNA. Would imply biochemistry and therefore life is common... -
Astronuc replied to the thread Graduate Modeling recoil track diffusion modification in aerogels?.A couple of points: 1. 224Ra->220Rn is found in the decay chain of 232Th rather than in the decay chains of 235U or 238U, although 232Th...
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Astronuc replied to the thread Stargazing Meteor/meteorite made a big boom this morning!.In Ohio, Indiana, Kentucky, West Virginia? Perhaps somewhere in the Ohio River Valley? So, Iron or Iron-nickel?
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Astronuc reacted to davenn's post in the thread Stargazing Meteor/meteorite made a big boom this morning! with Like.
material is already being found by some of my fellow meteorite collectors :smile:
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Astronuc replied to the thread Stargazing Meteor/meteorite made a big boom this morning!.I saw some dashcam video this morning. Pretty cool! Apparently NASA reported a 7 ton meteor. From the AP cited by Andy Resnick in the...
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Astronuc reacted to DaveC426913's post in the thread Stargazing Meteor/meteorite made a big boom this morning! with Like.
The farthest distance a sound was reported is 60miles away, due East, in Niles OH, just north of Youngstown. I am dubious about the...
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Astronuc reacted to DaveC426913's post in the thread Stargazing Meteor/meteorite made a big boom this morning! with Like.
Approx. 6ft diameter, 7 tonnes, moving at ~40,000mph.. Exploded about 30-40 miles above Valley City, OH with a force of about 250 tons...
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Astronuc reacted to Andy Resnick's post in the thread Stargazing Meteor/meteorite made a big boom this morning! with Like.
https://apnews.com/article/meteor-cleveland-fireball-astronomy-89d1cd3e060774ff897512cb811710d7 Made for interesting discussions in...
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Astronuc replied to the thread Why is AuCl4 an anion?.Adding to what others mentioned, Cl is an anion, so one has a cation (Au) surrounded by 3 or 4 Cl atoms. H⋅Au(III)Cl4, has 4 Cl anions...
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Both AuCl3 and [AuCl4]- exist. Chemistry principles get funky when you get to the third row metals (where Au sits) so I can't comment...
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Ohhh i get it now, yeah i think i misunderstood it earlier. I do have one more question though why was the Gold [III] was attracting 4...
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No idea why you think it should be otherwise, you start with somethin that is +3 charged and combine it with 4 -1 charges, no way it can...
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Astronuc replied to the thread Random Thoughts 7.Oops! From FORTUNE: ‘Proceed with caution’: Elon Musk offers warning after Amazon reportedly had mandatory meeting to address ‘high...
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Astronuc reacted to jedishrfu's post in the thread Stewart Cheifet Host of PBS Computer Chronicles has Died at age 87 with
Sad.
https://arstechnica.com/gadgets/2026/01/stewart-cheifet-pbs-host-who-chronicled-the-pc-revolution-dies-at-87/ -
Astronuc replied to the thread RIP Anthony J Leggett (1938 - 2026), superfluidity.I read about the behavior of 3He, probably around 1975, just one of the many interesting topics that inspired me to study physics and...