hovden

7 ms·

1.
by hovden 2mo ago
Here is a large deluxe atlas of Fourier Transforms clothbound, stitched: https://fourieratlas.com/products/atlas-of-fourier-transform...
2.
by hovden 2mo ago
I enjoyed reading it. Expression and culture through hardware modification and engineering.
3.
Tried to get the horse.horse TLD but it was executed perfectly(horse.horse)
3 points by hovden 3mo ago|1 comments
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by hovden 3mo ago
Found this website.
5.
by hovden 8mo ago
Summits on the air not mentioned in the article.
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by hovden 9mo ago
It’s great amateur radio. Which I’ve learned is not about reliable communication. It is the sport of “can you here me now?”. Lots of tinkering and testing. The fun of Seeing the network open up when someone attaches a node to an airplane. O
7.
by hovden 1y ago
If I might also plug ‘the Atlas of Fourier Transforms’. If your interested in understanding building intuition of symmetry and phase in fourier space, the book illustrates many structures.
8.
by hovden 1y ago
Some context for HN: This is a self-published book, which is nonstandard in my field. Usually you work with large academic publishing groups. The choice of self-publishing is an unknown process to most academics in science and engineering.
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Atlas of Fourier Transforms – Physics Prof. Self Publishes Textbook(fourieratlas.com)
2 points by hovden 1y ago|2 comments
10.
by hovden 1y ago
The “Atlas of Fourier Transforms” caters to enthusiasts of all proficiency levels. Here, the reader embarks into the world of Fourier transforms through carefully curated images of Fourier pairs. As the atlas unfurls, it includes concepts o
11.
by hovden 2y ago
The article does not explain how they entered it into the public domain. One cannot just declare something is public domain. Public domain is a special circumstance.
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by hovden 2y ago
Blatant fraud is rare in physics, engineering, chemistry. Lying is rare. Quality is high at the highest institutions of physics and chemistry. Exaggerated claims occur, but much less than in day to day life. Top visibility work is quickly r
13.
Breakthrough Achieved in Nanometer-Resolution Imaging of 3D Chemistry(science.slashdot.org)
6 points by hovden 2y ago|0 comments
14.
by hovden 2y ago
The algorithm is made available; may be of interest to HN comp sci community. Fused multi-modal electron tomography reconstructs three-dimensional chemical models by solving an optimization problem seeking a solution that strongly agrees wi
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Breakthrough in imaging 3D chemistry at nanometer res with electron tomography(nature.com)
4 points by hovden 2y ago|3 comments
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by hovden 2y ago
Measuring the three-dimensional (3D) distribution of chemistry in nanoscale matter is a longstanding challenge. Here, high-resolution 3D chemical imaging is achieved near or below one-nanometer resolution. Multi-modal data fusion enables hi
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Ross Ulbricht et al., controlled growth of EuO by molecular-beam epitaxy (2008)(pubs.aip.org)
5 points by hovden 3y ago|0 comments
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by hovden 3y ago
A lot of non-quantum waves have discrete allowed values. EM cavities, guitar strings, etc. Quantum waves are described by a special wave equation, actually a complex diffusion equation (first order in time, second order spatially).
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by hovden 3y ago
https://doctorow.medium.com/provocateur-copyrights-a-magic-t...
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by hovden 3y ago
Copyright is not a property right. Property rights are derived from distinct legal and philosophical origins.
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by hovden 3y ago
This is sound advice.
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LK-99 Prediction: color centers, low-temperature optical transitions(arxiv.org)
2 points by hovden 3y ago|0 comments
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by hovden 3y ago
Interesting. Do you have a source? How does it compare to other tech, like nails? Or cups? Shoes?
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by hovden 3y ago
Headline is misleading. Waterbears are quite fragile, albeit tougher than most. I bought some and found nearly all would die after short exposure to low vacuum. Manuscripts seem to corroborate our findings. It is the exaggerated headlines t
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by hovden 3y ago
Rutherford scattering (backscattering) is proportional to atomic number. Heavier (more protons) atoms scatter more.
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by hovden 4y ago
I’ve yet to have ChatGPT produce useable content for my technical writing, or even lighter portions of proposal writing, rec letters, emails etc. I found it has done well at cleaning up text, fun language games, and quickly sourcing readily
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by hovden 4y ago
This. I’ve lost more data to ssd’s than any other medium. After my experiences, I backup all machines using ssd drives.
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by hovden 4y ago
Loose use of the dirac delta is a give away trait of a physicist. While a mathematician will spend pages to justify its use
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by hovden 4y ago
Tangentially related: An MTG art project the explores “owning culture and people’s participation in culture through copyright” Writeup by Cory Doctorow: https://doctorow.medium.com/provocateur-copyrights-a-magic-t...
30.
Deaths by Vaccination Status, England(ons.gov.uk)
7 points by hovden 4y ago|2 comments

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