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Posts by Daniel

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Without having actually ever done any fullerene chemistry, I feel I'm learning a lot! Paper models of C60 (top), C70 (right) and C80 - the Ih one (left).
๐Ÿงช #ChemSky #SciArt #Papercraft

4 days ago 38 5 0 0
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Just over 22 years ago I delivered the big one. Now here he is delivering ducklings at Easter.

2 weeks ago 8 1 0 0
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Hatched about an hour ago. The question is duck or drake?

2 weeks ago 17 1 0 0
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Much excitement in my household today. And well timed by the new addition, it being Easter Sunday.

2 weeks ago 5 1 0 0

๐Ÿ˜‚๐Ÿ˜‚๐Ÿ˜‚

2 weeks ago 0 0 0 0

Oh no ๐Ÿ˜ฎ!

2 weeks ago 0 0 0 0

I'm very happy with the idea of unit pricing. It was just that in this store you could buy PritStick (which barely holds two bits of paper together) or super glue! There's no crossover in their use! ๐Ÿ˜‚

2 weeks ago 0 0 0 0
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Joe, that's exactly right.

2 weeks ago 1 1 1 0

๐Ÿ˜‚ I inherited mineral collection some years ago. I've put the pitchblende in its own special lead lined box!

2 weeks ago 3 0 2 0

Yes. It's fine. A really good Geiger counter will be able to show you, it is only very slightly more radioactive than the background radiation that we all experience every day!

2 weeks ago 3 0 1 0
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Found this tiny piece of uranium glass on the beach. The amazing green fluorescence under the blacklight is unrelated to its radioactivity. It is caused by an electronic transition in the linear uranyl [O=U=O]2+ group; the most common structural feature of uranium in it highest oxidation state. ๐Ÿงช

2 weeks ago 104 18 4 1

Monoclinic?

2 weeks ago 1 0 1 0

(C70-D5h(6))[6,5]Fullerene aka rugbyballene!

3 weeks ago 1 0 0 0
Two decorated paper polyhedra, representing the structure of the fullerene C70.

Two decorated paper polyhedra, representing the structure of the fullerene C70.

These aren't Easter eggs. Testing different construction sequences and decorations on C-70 fullerene models. Black for the bonds, green for the pentagons.
๐Ÿงช #SciArt #Chemsky #Papercraft

3 weeks ago 27 8 1 1
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Local store getting ready for new UK legislation on unit pricing.
Reminds me of being a crystallographer, when the computer returns a calculated density of x megagrams per cubic meter. I'd get stuck trying to imagine a cubic meter sized crystal!
What would you fix with a kilo of cyanoacrylate?

4 weeks ago 4 2 1 0
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๐Ÿ˜‚๐Ÿ˜‚ it's just my phone, in a poorly lit room, quite late at night! The only edit is some cropping.

4 weeks ago 1 0 1 0
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Exploring different, but simple ways of using paper to model chemical structures. This is C70 fullerene. It has a significantly larger interior cavity than C60, and an axial D5h point symmetry.
๐Ÿงช #Chemsky #SciArt #Papercraft

4 weeks ago 42 6 1 0
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It's a very rough model of C70, if carbon atoms are placed on every corner. #SciArt #Papercraft

1 month ago 22 1 2 0
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I'm quite confident I have the right components; just need the glue now!

1 month ago 6 1 0 0

Congratulations Michael. Agree about the paperwork.

1 month ago 2 0 0 0
Five white star-like paper polyhedra.

Five white star-like paper polyhedra.

Enjoyed making these. The five Mรถbius deltahedra. Non-convex, acoptic, face-transitive polyhedra made from equilateral triangles.
Each edge of each triangle lies on a mirror plane. They have the same #symmetry as the Platonic solids, and are related to triangular tessellations on a sphere. ๐Ÿงช #SciArt

1 month ago 30 3 0 0
A box of convex deltahedra, printed with a decoration that gives the impression of atoms at the corners.

A box of convex deltahedra, printed with a decoration that gives the impression of atoms at the corners.

Designing deltahedra as models for #chemed #STEMed.
Trying to find "good" nets.
While there are 2 distinct nets for the tetrahedron, apparently there are 43380 for the icosahedron!
It seems easier to assemble nets that wrap, than more condensed variants. ๐Ÿงช #SciArt #iteachchem

1 month ago 12 3 0 0

๐Ÿ˜‚ I might be selling pre-cut kits by then!

1 month ago 1 0 0 0
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Video

Slightly squiffy 3D build from paper loops.
This bipartite network is a model of the unusual niobium monoxide (NbO) structure (NB purple, O yellow!). The structure can be considered as a 1/4 depleted NaCl structure, where the cubic symmetry is preserved. ๐Ÿงช #SciArt #ChemSky

1 month ago 67 9 2 0
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๐Ÿงช Schottky defects occur in ionic crystals. They are pairs of point defects, where a vacancy at a cation site is matched by a vacancy at an anion site, preserving the charge balance.
Here's my two dimensional paper representation of a Schottky defect in sodium chloride. #SciArt #SciComm

1 month ago 38 11 2 1
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Real crystals are never perfect. This is a two dimensional paper representation of a Frenkel defect. It's a pair of point defects, where an atom is displaced, leaving a vacancy and an interstitial.
๐Ÿงช #SciArt

1 month ago 30 6 0 0
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I was getting bored of making regular convex deltahedron as paper models for chemists. Delighted with this non-convex distraction. A highly symmetry (icosahedral) 120- faced Mรถbius deltahedron. I'm sure mathematics is art.
๐Ÿงช #SciArt

1 month ago 41 6 2 0

Should be Garnet City?

1 month ago 0 0 1 0
Showing 4 similar white card polyhedra. Three in error, one acceptable.

Showing 4 similar white card polyhedra. Three in error, one acceptable.

Testing my net for the bicapped square antiprism. Forth time lucky! 1 missed folding an edge. 2 missed folding another edge. 3 forgot to pay attention to the sequence (made a non convex deltahedron). 4 seems okay. Maybe there's an easier net? #SciArt

1 month ago 10 0 0 0

I'd like to be added to the SciArt feed.
As a former scientist now more interested in art and representation.

1 month ago 3 0 1 0