Astronuc's latest activity
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Astronuc reacted to pinball1970's post in the thread High School Uracil found in carbonaceous asteroid with
Like.
The thread is three years old but papers are still being published on the material obtained from Asteroids. A comparison on page 7 of... -
Astronuc reacted to pinball1970's post in the thread High School Uracil found in carbonaceous asteroid with Like.
Thanks @BWV , I came across this post looking for black holes!Just a quick note on Hayabusa https://en.wikipedia.org/wiki/Hayabusa2...
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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...
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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...