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diffgeom.com
Original Math Designs
@diffgeom.com
620 followers 480 following 300 posts
The online shop Differential Geometry, at www.diffgeom.com, run by Andrew D. Hwang.

"Hwang" rhymes with "song" more or less, he/him: Freelance mathematician, mathematical artist (no machine learning), author, difficult to summarize. I block bots
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diffgeom.com
Original Math Designs @diffgeom.com · 7d
The entire month of November, all my original mathematical jewelry at Differential Geometry is 10% off with the code Bsky2025!

www.diffgeom.com/shop

#Math #MathArt #Jewelry
A virtual scene shows a colorful faceted sphere floating in a twilit winter sky over a range of increasingly rugged dark blue mountains, dusted with five-pointed "snowflakes." In large gold letters with black drop shadows reads "Differential Geometry Holiday Sale 2025."
Reposted by Original Math Designs
nataliewernimont.bsky.social
Lots of paintings/potential gifts available on my website: www.nataliejunewernimoon.com 🦋🌙🖤

#paintings #moths #butterflies #bugs #insects #oddities #lepidoptera #entomology #bugsky #sciart #shopsmall #smallbusinesssaturday #butterfly #moth #nature #wildlife #art
A collage of realistic moth and butterfly paintings in a variety of different frames. The pieces are sitting on a distressed white tabletop. There are hints of wood tone showing throughout the white surface, which you can also see behind the insects. This helps to indicate that they have been painted on clear glass, and each one looks like it is floating in its respective frame.
November 29, 2025 at 6:55 PM
diffgeom.com
These two pendants need good homes. Through tomorrow, all my original mathematical jewelry designs are 10% off with the checkout code Bsky2025!

www.diffgeom.com/product/anem...
www.diffgeom.com/product/anem...

Browse all:
www.diffgeom.com/product-cate...

#MathSky #MathArt #SciArt #Jewelry
Photograph of a rounded flower-like mirror-polished gold-plated brass pendant, about 1-1/2in (38mm) across, in the shape of a twisted band with five-fold rotational symmetry. Photograph of Anemone, a flower-like mirror-polished sterling silver pendant, about 1.2in/30mm across, in the shape of a twisted band with seven-fold rotational symmetry.
November 29, 2025 at 9:40 PM
Reposted by Original Math Designs
dadrummond.art
The beast herself, Cryptolithus bellulus, reconstructed using information from extremely rare fossils with soft-tissue preservation. Solid bronze. #sciart
A golden bronze trilobite belly-up in my hand on a white background. The legs and gills of the animal are sculpted in great detail.
October 16, 2025 at 12:58 PM
Reposted by Original Math Designs
catalyst-artworks.bsky.social
Whohoo, online sales are finally up! This pitcher plant painting is for sale at Cline House Gallery until Dec 20th.

Sales link: clinehousegallery.com/product/c-r-...

#botanicalart #bloomsky #painting
Water soluble encaustic painting of a cluster of pitcher plant leaves and flowers in different stages of life.
November 12, 2025 at 12:08 PM
Reposted by Original Math Designs
diffgeom.com
Through November, use the code Bsky2025 at checkout for 10% off all my original mathematical jewelry designs! Shown is my newest regular item, Harmonia in sterling silver.
www.diffgeom.com/product/harm...

Browse all:
www.diffgeom.com/product-cate...

#MathSky #MathArt #SciArt #Jewelry
Photograph of Harmonia, a shiny 1-3/8 in (35mm) silver pendant in the looping shape of a stylized flower with six petals. The piece has a shiny inverted trapezoidal bail fitted with a matching chain and sits on a black background.
November 28, 2025 at 1:06 PM
diffgeom.com
This bright, lively climbing spiral is mathematically famous, the halfway point of "deforming a catenoid to a helicoid through local isometries."

Human browsers welcome! Today and tomorrow, use Bsky2025 at checkout for 10% off!
www.diffgeom.com/product-cate...

#MathSky #MathArt #SciArt #Jewelry
November 29, 2025 at 12:40 PM
diffgeom.com
Through November, use the code Bsky2025 at checkout for 10% off all my original mathematical jewelry designs! "Intimo" (for the musical term) suggests linked rings, but is a trefoil knot.
www.diffgeom.com/product/inti...
www.diffgeom.com/product/inti...

#MathSky #MathArt #SciArt #Jewelry
Photograph of Intimo Golden, a shiny 1-3/8 in (35mm) tall gold-plated brass pendant that in a single curve traces two large overlapping circles and a smaller inner circle, resembling an eye. Also available rhodium-plated. Photograph of Intimo earrings, each a shiny 7/8in (22mm) tall sterling silver loop that in a single curve traces two large overlapping circles and a smaller inner circle, resembling an eye. Side view of Intimo earrings, each a shiny 7/8in (22mm) tall sterling silver loop that in a single curve traces an oval whose lower and upper halves are elegantly entwined.
November 28, 2025 at 10:46 PM
diffgeom.com
All my original jewelry designs are 10% off through November with the code Bsky2025! These two sterling silver pieces are still available.

#MathSky #MathArt #SciArt #Jewelry
diffgeom.com Original Math Designs @diffgeom.com · Oct 20
Matching silver pendant and earrings (sold separately) at Differential Geometry. The knotted band is a stylized representation of the complex 2/7-power function.

www.diffgeom.com/product/anem...
www.diffgeom.com/product/anem...

www.diffgeom.com/product-cate...

#MathSky #MathArt #Jewelry
Photograph of a flower-like mirror-polished sterling silver pendant, about 1.2in/30mm across, with seven-fold rotational symmetry. Photograph of flower-like mirror-polished sterling silver earrings, about 0.8in/20mm across, torus knots with seven-fold rotational symmetry.
November 28, 2025 at 2:57 PM
diffgeom.com
Through November, use the code Bsky2025 at checkout for 10% off all my original mathematical jewelry designs! Shown is my newest regular item, Harmonia in sterling silver.
www.diffgeom.com/product/harm...

Browse all:
www.diffgeom.com/product-cate...

#MathSky #MathArt #SciArt #Jewelry
Photograph of Harmonia, a shiny 1-3/8 in (35mm) silver pendant in the looping shape of a stylized flower with six petals. The piece has a shiny inverted trapezoidal bail fitted with a matching chain and sits on a black background.
November 28, 2025 at 1:06 PM
Reposted by Original Math Designs
minouette.bsky.social
I’m going to share prints I completed this year until the end of 2025 and today it’s my Parliament of Owls linocut. Find them all on sale this week at minouette.etsy.com!

I love the whimsical terms of venery for groups of animals and have an ongoing series of #linocut #termsOfVenery prints. 🧪🐡
For my linocut parliament of owls I made two columns of local owls - like government an which the loyal opposition in this parliament in a tree printed in black against a dark grey evening sky! It reads “A parliament of owls” in gothic lettering and the word Owl is made with an eye and feathers. Right to left and top to bottom the owls are: Northern saw-whet, Eastern screech, Barred, long-eared, Barn and Great Horned owl. They are printed in shades of brown on white chine collé paper on the grey background.
November 27, 2025 at 1:55 PM
diffgeom.com
🌟🌟🌟🌟🌟 Five stars for @elkement's evocative, hand-drawn ellipsoid designs: beautifully printed, speedily delivered, in daily use!

Check out her online shop
store.elkement.art/en-eur

and those of other independent math-y artists and designers!
www.diffgeom.org/misc/math_sh...

#MathArt #SciArt
Right-hander's view of white ceramic coffee mug decorated with elkement's hand-drawn ellipsoids. Left-hander's view of white ceramic coffee mug decorated with elkement's hand-drawn ellipsoids.
November 27, 2025 at 8:29 PM
Reposted by Original Math Designs
diffgeom.com
I have mathematical greeting cards (original designs, no AI, boxes of 10) in stock!

www.diffgeom.com/product-cate...

Price includes shipping within the US.

Browse the whole shop:
www.diffgeom.com/shop

#MathSky #MathArt
A virtual evening scene depicting a Georgia O'Keeffe-like enameled orb over a silhouetted range of mountains under a winter sky, dusted with five-pointed stars.
November 1, 2025 at 1:25 PM
Reposted by Original Math Designs
artologica.net
when you could have this? www.etsy.com/shop/artolog... #sciart
4 different scarves with science motifs
November 26, 2025 at 5:08 PM
Reposted by Original Math Designs
mercer-vernon.com
A favorite first year dahlia collarette seedling from my garden. one of 4-4x4” minis in my Holiday Collection hitting my shop Sunday at a secret time. Sending an email Friday with the time, sign up here to receive it www.mercer-vernon.com/mailing-list...

#art #flowers #dahlia #painting 🐡 #botanical
Photo of my hand holding a small 4x4 inch botanical oil painting of a white collarette dahlia flower
November 26, 2025 at 10:34 PM
diffgeom.com
Through November, use the code Bsky2025 at checkout for 10% off all my original mathematical jewelry designs!

www.diffgeom.com/product/luna...
www.diffgeom.com/product/sele...
www.diffgeom.com/product/cele...

Browse all:
www.diffgeom.com/product-cate...

#MathSky #MathArt #SciArt #Jewelry
Luna, a polished rhodium-plated brass pendant, about 25mm across, in the shape of an elegantly asymmetrical donut striped by diagonal bands, fitted with a silver rope chain and sitting on a black background. Selene, polished sterling silver earrings, about 20mm across, in the shape of an elegantly asymmetrical donut striped by diagonal bands. Celeste, polished gold-plated brass earrings, about 20mm across, in the shape of an elegantly asymmetrical donut striped by diagonal bands.
November 27, 2025 at 1:27 PM
diffgeom.com
Through November, please use the code Bsky2025 at checkout for 10% off all my original mathematical jewelry designs!
www.diffgeom.com/product/viva...
www.diffgeom.com/product/viva...

Browse all:
www.diffgeom.com/product-cate...

#MathSky #MathArt #SciArt #Jewelry
Photograph of Vivace, a polished sterling silver pendant, about 35mm tall, in the shape of a climbing spiral mesh, fitted with a silver rope chain and sits on a black background. Photograph of Vivace sterling silver earrings, with the same shape as the pendant, about 25mm tall.
November 26, 2025 at 9:57 PM
Reposted by Original Math Designs
minouette.bsky.social
Find it and all my prints 25% off this week at minouette.etsy.com

#linocut #printmaking #sciart
minouette.etsy.com
November 26, 2025 at 2:00 PM
Reposted by Original Math Designs
studiohromi.bsky.social
Who here has BIG canvas paintings available for purchase? I need to fill a large awkward wall in my house and would love a statement piece of some sort. Vertical orientation. Probably something on the abstract or geometric side rather than representational. The room is sage green and terracotta.
November 12, 2025 at 9:50 PM
diffgeom.com
Through November, please use the code Bsky2025 at checkout for 10% off all my original mathematical jewelry designs!
www.diffgeom.com/product/harm...

Browse all:
www.diffgeom.com/product-cate...

#MathSky #MathArt #SciArt #Jewelry
Photograph of Harmonia, a shiny 1-3/8 in (35mm) gold-plated brass pendant in the looping shape of a stylized flower with six petals. The piece has a shiny inverted trapezoidal bail fitted with a gold long-and-short loop chain and sits on a black background.
November 26, 2025 at 1:29 PM
diffgeom.com
Through November, please use the code Bsky2025 at checkout for 10% off all my original mathematical jewelry designs!
www.diffgeom.com/product/lumi...

Browse all:
www.diffgeom.com/product-cate...

#MathSky #MathArt #SciArt #Jewelry
Photograph of Luminoso, a polished rhodium-plated brass pendant, about 35mm across, in the shape of an elegantly asymmetrical donut striped by six diagonal bands. The piece has a shiny inverted trapezoidal bail fitted with a silver rope chain and sits on a black background.
November 25, 2025 at 11:43 PM
Reposted by Original Math Designs
diffgeom.com
Times are hard for small businesses. Please support independent shops, artists, and craftsfolk!

For mathematical jewelry, toys, T-shirts, and posters, here are two dozen independent online shops, including mine:

www.diffgeom.org/misc/math_sh...

#MathSky #MathArt #SciArt #Jewelry #SmallBusiness
A mathematical surface the size, general shape, and color of a thunderhead looms in a photograph of a sunset sky over water.
November 16, 2025 at 7:00 PM
Reposted by Original Math Designs
diffgeom.com
I design and sell mathematically-accurate jewelry inspired by differential and algebraic geometry, and topology, and invite you to browse!

www.diffgeom.com/product-cate...

#MathSky #MathArt #Jewelry #3DPrinting
A gallery of 15 photographs of shiny mathematical pendants and earrings at Differential Geometry.
October 19, 2025 at 3:26 PM
diffgeom.com
The entire month of November, all my original mathematical jewelry at Differential Geometry is 10% off with the code Bsky2025!

www.diffgeom.com/shop

#Math #MathArt #Jewelry
A virtual scene shows a colorful faceted sphere floating in a twilit winter sky over a range of increasingly rugged dark blue mountains, dusted with five-pointed "snowflakes." In large gold letters with black drop shadows reads "Differential Geometry Holiday Sale 2025."
November 22, 2025 at 12:47 PM
diffgeom.com
Times are hard for small businesses. Please support independent shops, artists, and craftsfolk!

For mathematical jewelry, toys, T-shirts, and posters, here are two dozen independent online shops, including mine:

www.diffgeom.org/misc/math_sh...

#MathSky #MathArt #SciArt #Jewelry #SmallBusiness
A mathematical surface the size, general shape, and color of a thunderhead looms in a photograph of a sunset sky over water.
November 16, 2025 at 7:00 PM
Reposted by Original Math Designs
gailmyerscough.co.uk
Thank you so much!
Your kind words (and the husband's emergency Vimto) sorted me right out.
It's really tough for small businesses at the moment. If you're #Christmas shopping, please shop independent - every order really matters.
gailmyerscough.co.uk Gail Myerscough @gailmyerscough.co.uk · 15d
This is true.
The husband just found me having a little cry in my studio.
He’s making me a hot Vimto and I’m having a word with myself.

Have a look at my website and please repost.
www.gailmyerscough.co.uk
Thank you.
November 16, 2025 at 5:23 PM