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Post by 1dave on Oct 31, 2016 15:13:56 GMT -5
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jawbreaker
off to a rocking start
Flour + soil sifter. Spoon is my shovel.
Member since October 2017
Posts: 18 
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Post by jawbreaker on Nov 20, 2017 2:22:36 GMT -5
I cannot get over how satisfying this is to read. Slobbering all over myself.
Such beautiful mind's here. Love this forum and THIS post.
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johnd
starting to shine!
Member since May 2015
Posts: 26 
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Post by johnd on May 28, 2018 13:26:25 GMT -5
I just stumbled across this posting
It is really a good read.
Thanks for putting it up
I'll be reading it again several times
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Post by 1dave on Sept 7, 2020 8:12:09 GMT -5
Still contemplating where best to post this.  |
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Post by stephan on Sept 7, 2020 23:27:49 GMT -5
Most scientists believe that our universe began with just hydrogen and a little helium, but even those two are complex! As hydrogen heats up, it's electrons are forced by an expanding "forbidden Zone" into ever larger and more bizarre orbits. This allows hydrogen to connect to other elements in many wondrous (look at snowflakes!) ways.
Sorry, but any reference to hydrogen makes me think of this: “There is more stupidity than hydrogen in the universe, and it has a longer shelf life.” “Some scientists claim that hydrogen, because it is so plentiful, is the basic building block of the universe. I dispute that. I say there is more stupidity than hydrogen, and that is the basic building block of the universe.” - Frank Zappa
(They never taught THAT in chemistry) 😂 Seriously, though... very informative. Wish I had a chemistry lab set up at home to do some of these tests. Flame tests are fun. Two more thoughts on acids and bases: strong vs. weak can be just as important as concentrated vs. dilute. Strong acids and bases dissociate completely, making all the H+ or OH- available to react. Weak ones release the ions gradually, and buffer the solution at a given pH (at or near the pKa, or dissociation constant). Second, baking soda will neutralize both acids and bases. |
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Post by 1dave on Sept 8, 2020 10:20:18 GMT -5
Most scientists believe that our universe began with just hydrogen and a little helium, but even those two are complex! As hydrogen heats up, it's electrons are forced by an expanding "forbidden Zone" into ever larger and more bizarre orbits. This allows hydrogen to connect to other elements in many wondrous (look at snowflakes!) ways.
Sorry, but any reference to hydrogen makes me think of this: “There is more stupidity than hydrogen in the universe, and it has a longer shelf life.” “Some scientists claim that hydrogen, because it is so plentiful, is the basic building block of the universe. I dispute that. I say there is more stupidity than hydrogen, and that is the basic building block of the universe.” - Frank Zappa
(They never taught THAT in chemistry) 😂 Seriously, though... very informative. Wish I had a chemistry lab set up at home to do some of these tests. Flame tests are fun. Two more thoughts on acids and bases: strong vs. weak can be just as important as concentrated vs. dilute. Strong acids and bases dissociate completely, making all the H+ or OH- available to react. Weak ones release the ions gradually, and buffer the solution at a given pH (at or near the pKa, or dissociation constant). Second, baking soda will neutralize both acids and bases. All we know is the best guesses of the past that we have individually accepted as "the truth." |
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Post by RickB on Mar 22, 2021 13:26:12 GMT -5
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Post by miket on Mar 22, 2021 14:12:27 GMT -5
Bookmarked. Very cool, thanks Rick!
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oooshiny
off to a rocking start
Just got back from fire agate hunt
Member since June 2021
Posts: 12
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Post by oooshiny on Jun 20, 2021 16:25:33 GMT -5
That was awesome and informative thank you
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missemi
off to a rocking start
Member since August 2021
Posts: 4
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Post by missemi on Aug 7, 2021 11:37:36 GMT -5
We have a lot of burnt smelling rocks here, I think they are precambrian basalt. We also have rocks that have iridescent minerals with a uv light. Another tip is get you get it wet, to see if limestone has fossils, Also, I have been able to test it but to tell jade from olivine or is it serpentine aside from weight, it sounds different, but you have to cut it to see if light passes through or translucency. I don't know all about jade there are so many types, grades, they also test with uv light.
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