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🧭 Explore 🌍 Top creators in Netherlands Mastodon rankings
Gerard Westendorp

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Mastodon @gerardwestendorp@mathstodon.xyz 📍 Netherlands
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🔄 Data last refreshed 11 days ago
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📣Sponsored postOne disclosed post (toot) with your link and message. $12→ 🧵Sponsored threadA multi-post explainer or story — the fediverse rewards depth over one-liners. $30→ 📦Product seeding / honest reviewSend me your product — I post a disclosed, honest take. Authenticity is the only ad this audience tolerates. $16→ 📌Pinned sponsored postA disclosed post pinned to the top of my profile for the month. $36/mo→ 🔗Profile link (bio field)Your link in one of my profile metadata fields for the month — native and low-key. $18/mo→ 🔁Boost packageI boost (repost) your account's toots through the month — distribution with zero content lift. $24/mo→ 🏛️Instance / community sponsorshipSponsor the server I run — a sponsor line in the About/rules and a welcome shout. A goodwill buy that keeps our community running. $30/mo→ 🤝Mutual boost collabWe boost each other across instances — a value swap between communities. Swap or paid→ 🎬UGC HireBranded content for your own channels & ads from $50→ 🎙️Podcast guest spotInvite Gerard Westendorp onto your podcast (~45 min, remote) $27→ 📞1:1 ConsultPaid video call — advice, coaching or Q&A $75/hr→

Every booking is a normal escrow-protected deal.

Followers
539
Account age
4 yrs
🎁 Free analysisfor Gerard Westendorp
🕵️Fake Followers CheckReal-audience % & bot risk→ 📊Engagement rateBenchmarked vs. peers→ 💰What they chargeFair sponsored-post price→

Known for

The tetrahedron is the only uniform polyhedron that allows sets of parallel geodesics covering its surface. You can't do it with the sphere for example. Lines of constant longitude (meridians) intersect at the poles, lines of constant latitude are not geodesics. I had a go at making a tetrahedron by triaxially weaving strips. The strips form parallel geodesics on the tetrahedron. It works, but I m24 views The tetrahedron is the only uniform polyhedron that allows sets of parallel geodesics covering its surface. You can't do it with the sphere for example. Lines of constant longitude (meridians) intersect at the poles, lines of constant latitude are not geodesics. I had a go at making a tetrahedron by triaxially weaving strips. The strips form parallel geodesics on the tetrahedron. It works, but I m Quite a big Tetrahedron. Near Essen, Germany.9 views Quite a big Tetrahedron. Near Essen, Germany. Archimedes proved the are of a sphere is the same as an open cylinder with the same radius, 4π 𝑟² . Using an icosahedron, you can make a "discrete" sphere and a "discrete" cylinder that also have the same radius and surface. (20 times the triangle area) In principle, you could do the same for finer discretization, figure out a way to tile both the sphere and the cylinder with the same triangles.9 views Archimedes proved the are of a sphere is the same as an open cylinder with the same radius, 4π 𝑟² . Using an icosahedron, you can make a "discrete" sphere and a "discrete" cylinder that also have the same radius and surface. (20 times the triangle area) In principle, you could do the same for finer discretization, figure out a way to tile both the sphere and the cylinder with the same triangles. This thing is strangely satisfying. I call it a "Yin Yang cylinder". I was not planning to make it, but it arose as a side track of another project. I looked a bit on the internet, but I did not see any similar things. The closest thing so far it the "Steinmetz bi-cylinder", a kind of intersection of 2 cylinders.8 views This thing is strangely satisfying. I call it a "Yin Yang cylinder". I was not planning to make it, but it arose as a side track of another project. I looked a bit on the internet, but I did not see any similar things. The closest thing so far it the "Steinmetz bi-cylinder", a kind of intersection of 2 cylinders.

📊 Post engagement

Recent posts · likes + reposts
Feb 10latest
7
Avg engagement / post
4–9
Typical post (engagement)
1.3%
Engagement vs followers
64/100
Consistent reach
Oct 2022
On Mastodon since
Half of recent posts land between 4 and 9 likes + reposts (median 5) — a dependable floor a sponsored post can count on.

🔥 Top post: The tetrahedron is the only uniform polyhedron that allows sets · 24 likes + reposts

📊 Activity & format

Posting cadence
0.62 / week
A lower-frequency account — each post lands with more weight.
Content mix
Mostly images
Recent: 0 text · 9 image · 3 video.
Follower / following
3.9×
Follows 138 back. A more reciprocal / networked account.

Recent posts

View on Mastodon ↗
🔥 Top post The tetrahedron is the only uniform polyhedron that allows sets of parallel geodesics covering its surface. You can't do it with the sphere for example. Lines of constant longitude (meridians) intersect at the poles, lines of constant latitude are not geodesics. I had a go at ma… ★ 24
Last time I wrote I wasn't going to make a better version of the triaxially woven tetrahedron because it would be too much work. Another part of my brain decided to do it anyway. Indeed it was a lot of work, and I made many mistakes on the… ★ 5 This gras seems to be unusually hydrophobic. I wonder if there is some evolutionary advantage for this. Other plants in my garden do not have these drops. They shine in the sun. ★ 3 This thing is strangely satisfying. I call it a "Yin Yang cylinder". I was not planning to make it, but it arose as a side track of another project. I looked a bit on the internet, but I did not see any similar things. The closest thing s… ★ 8 ▶ New version of my previous animation. Better forget the old version. I should also mention that while making the animation, I got useful information from this nice web page by Tadeusz E. Doroziński: https://geometryka.wordpress.com/2016/06… ★ 3 ▶ Animation of a tennisbal-style dissection of the sphere. The seam is composed of circle segments. The projection looks like a Yi-Yang symbol. I am wonder if I can make something like the recent "generalized" Yin-Yang posts on the tennisbal… ★ 4 Quite a big Tetrahedron. Near Essen, Germany. ★ 9 ▶ I was intrigued by a website on the space of triangles and elliptic curves: https://dmuw.zum.de/wiki/Heron_Triangles_and_Elliptic_Curves I made an animation, showing how triangles can be warped by a 1 parameter transformation, that keeps b… ★ 8 There is an interesting and concise 1942 lecture text (the lecture was cancelled because of the war) on "Newton the Man" by John Maynard Keynes. Newton was probably the most important physicist in history, but he spent a lot more time on… ★ 5 Archimedes proved the are of a sphere is the same as an open cylinder with the same radius, 4π 𝑟² . Using an icosahedron, you can make a "discrete" sphere and a "discrete" cylinder that also have the same radius and surface. (20 times th… ★ 9 This Youtube channel featuring Leonard Susskind sometimes has click-bate like titles. https://www.youtube.com/watch?v=SZWb0tUVeho But it is actually the kind of excellent stuff you would expect from Susskind. ★ 2 I "find" this a bit strange. The letter combination "fi" is somehow displayed in a funny way in my feed (been like that for a long time)

🐘 Community & instance

Home server
mathstodon.xyz
Their home server on the fediverse — the instance a creator picks signals the community they belong to.
✅ Link-verified
Verified link
Proved ownership of a website linked on their profile — Mastodon's green-check verification, a real identity signal rather than a paid badge.
On Mastodon since
Oct 2022
Joined in the Twitter-exodus wave of late 2022 — part of the migration that made Mastodon a real destination.

💡 Facts

🗓️Joined Mastodon in 2022 — 4 years ago.
👁️Averages 7 views per post.
📤Posts about 0.6× per week.
📍Based in Netherlands.

🕵️ Fake follower check

Estimated
52/100
Fair Credibility score
76%
Mixed Real audience
Medium Fake-follower risk
High Data confidence
  • Est. 76% real, active audience · Medium fake-follower risk.
  • Low engagement (~1.3% of followers engage each post) — a sign of an inflated or inactive audience.
  • Verified account.
  • Established account (4+ years old).

Heuristic estimate from engagement, follower ratios, account age & growth — a screening signal, not a guarantee.

About

Trying to understand nature, in the meanwhile making visualizations of math and physics concepts. https://westy31.nl/

📸 Gallery

Last time I wrote I wasn't going to make a better version of the triaxially woven tetrahedron because it would be too much work. Another part of my brain decided to do it anyway. Indeed it was a lot of work, and I made many mistakes on the way. I actually don't like making things, its the concept that motivates me. I am considering to do one with plastic strips... The tetrahedron is the only uniform polyhedron that allows sets of parallel geodesics covering its surface. You can't do it with the sphere for example. Lines of constant longitude (meridians) intersect at the poles, lines of constant latitude are not geodesics. I had a go at making a tetrahedron by triaxially weaving strips. The strips form parallel geodesics on the tetrahedron. It works, but I m This gras seems to be unusually hydrophobic. I wonder if there is some evolutionary advantage for this. Other plants in my garden do not have these drops. They shine in the sun. This thing is strangely satisfying. I call it a "Yin Yang cylinder". I was not planning to make it, but it arose as a side track of another project. I looked a bit on the internet, but I did not see any similar things. The closest thing so far it the "Steinmetz bi-cylinder", a kind of intersection of 2 cylinders. New version of my previous animation. Better forget the old version. I should also mention that while making the animation, I got useful information from this nice web page by Tadeusz E. Doroziński: https://geometryka.wordpress.com/2016/06/16/tennisball-geometrie/ Animation of a tennisbal-style dissection of the sphere. The seam is composed of circle segments. The projection looks like a Yi-Yang symbol. I am wonder if I can make something like the recent "generalized" Yin-Yang posts on the tennisbal. The points where the circle segments end correspond to points where the cube-tetrahedron frame touches the sphere. Quite a big Tetrahedron. Near Essen, Germany. I was intrigued by a website on the space of triangles and elliptic curves: https://dmuw.zum.de/wiki/Heron_Triangles_and_Elliptic_Curves I made an animation, showing how triangles can be warped by a 1 parameter transformation, that keeps both the Area (A) and the Perimeter (2*s) constant. Also, the incircle radius (r) is kept constant. In fact, A = r*s. This is also a way to describe the "space of

🔀 Audience overlap

Estimated

Estimated shared audience with similar creators — useful for avoiding overlap (or doubling down) when planning a campaign.

Joost Baars Joost Baars 30% Steven 📸 Steven 📸 16% Tim Hutchings Tim Hutchings 13% shonin shonin 13% Fionnbharr Fionnbharr 11% Erik Johnson Erik Johnson 10%

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Gerard Westendorp has 539 followers on Mastodon.

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