Time for a short #introduction:
I'm a 30-something mathematician from Munich, Germany. I work at the intersection of maths, art and education with lots of coding to tie everything together: An interactive schoolbook about fractions; 2D/3D visualizations of pigment molecules; a procedural map generator. Etc.
I rapidly bounce between many hobbies -- currently I mostly try to learn Polish.
I have made a new maths t-shirt design! If you can bear to pay Redbubble's prices, you can strut around town with a niche maths reference on your front: https://www.redbubble.com/shop/ap/115207197
Today I learning that Ingenuity, the helicopter on Mars, carries a piece of fabric from the wing of the 1903 Wright Flyer, the Wright Brothers' airplane used in the first controlled powered heavier-than-air flight on Earth.
With increasing numbers of scientific gatherings going back to in-person meetings, in our latest paper, we make a claim that online meetings have several advantages for the #MathArt community. https://www.tandfonline.com/doi/full/10.1080/17513472.2022.2079941. For instance, presentation of large art pieces. A thread🧵1/6
Our work is #OpenAccess in @MathsArts, thanks to the support by @tudelft. Thanks to my amazing co-author Milena Damrau (https://ekvv.uni-bielefeld.de/pers_publ/publ/PersonDetail.jsp?personId=118231413) for a great collaboration and to @TUDelft_CGV for supporting my research. Find the full article here: https://www.tandfonline.com/doi/full/10.1080/17513472.2022.2079941 6/6
Ha! As soon as I told someone (you) about it, I found it in a book. (That happens way too often...)
The theorem can be found in a more powerful form in Hatton's "Principles in Projective Geometry" from 1913. Theorem 133 on the left page in the attached image.
(It's the dual of mine, but I prefer the final conic to be a conic through points.)
@ColinTheMathmo, would mind sending this to your mailing list, and thank them for their help in my regard?
Can the hive mind help?
I have a nice, short proof for a theorem about conics. Unfortunately, I don't know how well the theorem itself is known. I'm sure it can be found in some book written in the last 200 years, but... 🤷
Does anyone know the following statement?
Given two non-degenerate conics in the projective plane. There are four lines which are tangent to both conics. They touch the given conics in four points each. Then there exists another conic, which runs through these eight points.
To clarify: My proof is most likely new and worth talking about, regardless of how well-known the statement itself is. But I would really like to know how well-known the statement itself is.
It's far too simple to be new. But I have no idea where to start looking for it.
Can the hive mind help?
I have a nice, short proof for a theorem about conics. Unfortunately, I don't know how well the theorem itself is known. I'm sure it can be found in some book written in the last 200 years, but... 🤷
Does anyone know the following statement?
Given two non-degenerate conics in the projective plane. There are four lines which are tangent to both conics. They touch the given conics in four points each. Then there exists another conic, which runs through these eight points.
A while ago @davidphys1 asked why nobody had made animations of the shunting yard algorithm with cutesy trains.
There is no surer way to summon me!
I've spent some of my spare time over the bank holidays making exactly that: https://somethingorotherwhatever.com/shunting-yard-animation/
Oh, good grief.
Am I wrong in finding this ridiculous or, worse, patronizing for children.
“Give maths a less scary name, economist Andy Haldane tells ministers”
[paywall warning]
Last week, I tweeted about my life and work as a scientist to an audience of 17200 people via
the German Real Scientists account. Here's an English summary of how that went.
https://www.bernhard-werner.de/2022/05/19/real-scientists.html
Mathematician. Lecturer. Programmer.
#IchBinHanna