XML Updated 2025-07-16
Do you know what is worse than XML? Pseudo XML: stackoverflow.com/questions/5558502/is-html5-valid-xml/39560454#39560454
Xun (instrument) Updated 2025-07-16
y86.js.org Updated 2025-07-16
Year 1 of the mathematic course of the University of Oxford Updated 2025-07-16
Competition law Updated 2025-07-16
Complex coordinate space Updated 2025-07-16
Matrix inverse Updated 2025-07-16
Yttrium barium copper oxide Updated 2025-07-16
Upside: superconducting above 92K, which is above the 77K of liquid nitrogen, and therefore much much cheaper to obtain and maintain than liquid helium.
Downside: it is brittle, so how do you make wires out of it? Still, can already be used in certain circuits, e.g. high temperature SQUID devices.
Euclidean algorithm Updated 2025-07-16
Kyoto medal Updated 2025-07-16
Microwave source Updated 2025-07-16
Microwave only found applications into the 1940s and 1950s, much later than radio, because good enough sources were harder to develop.
One notable development was the cavity magnetron in 1940, which was the basis for the original radar systems of World War II.
Mineral Updated 2025-07-16
Original gangster Updated 2025-07-16
Superconducting qubits are bad because it is harder to ensure that they are all the same Updated 2025-07-16
This is unlike atomic systems like trapped ion quantum computers, where each atom is necessarily exactly the same as the other.
Year 4 of the computer science course of the University of Oxford Updated 2025-07-16
Ciro Santilli's formal education Updated 2025-07-16
Ciro Santilli participated in a double degree program, so he obtained have engineering degrees in both:
- 2010 - 2014: École PolytechniqueMaster 2 degree in applied mathematics.
- Ciro Santilli's undergrad studies at the University of São Paulo
Despite studying in great institutions with great teachers, Ciro feels that:
- most of what he knows came from the Internet, man pages, books and his parents
- actual projects matter much more than those pieces of paper called Diplomas. You should not do like Ciro who basically did nothing but school mandated work, but instead grow some balls and focus much more or entirely on your projects
This motivated Ciro to work on OurBigBook.com.
Turing machine that halts if and only if the Goldbach conjecture is false Updated 2025-07-16
Zhuangzi Updated 2025-07-16
- James Legge (1891):
- ctext.org/zhuangzi side by side with Chinese, one chapter per page. Dividies it into three parts:
- Inner Chapters
- Outer Chapters
- Miscellaneous Chapters
- ctext.org/zhuangzi side by side with Chinese, one chapter per page. Dividies it into three parts:
Ciro Santilli's hardware 2019-03 Giant Control Tower 3 floor pump bike pump Updated 2025-07-16
20 pounds. Works on both Schrader and Presta.
Diamond Updated 2025-07-16
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