E-learning website Updated 2025-07-16
Generally, if something is labelled as "e-learning", it's not a good sign, as it implies that it adheres to the "teacher"/"student" separation which Ciro Santilli much despises: E-learning websites must allow students to create learning content.
Electrical resistivity and conductivity Updated 2025-07-16
Electric current Updated 2025-07-16
In the context of Maxwell's equations, it is vector field that is one of the inputs of the equation.
Section "Maxwell's equations with pointlike particles" asks if the theory would work for pointlike particles in order to predict the evolution of this field as part of the equations themselves rather than as an external element.
Measured in amperes in the International System of Units.
Electrolysis Updated 2025-07-16
Electromagnetic coil Updated 2025-07-16
Electromagnetism Updated 2025-07-16
As of the 20th century, this can be described well as "the phenomena described by Maxwell's equations".
Back through its history however, that was not at all clear. This highlights how big of an achievement Maxwell's equations are.
Electron degeneracy pressure Updated 2025-07-16
Electronic circuit Updated 2025-07-16
Electronic component Updated 2025-07-16
Open Circuits book interview by CuriousMarc (2022)
Source. Electronic money Updated 2025-07-16
Our minimal definition of "electronic money" is the following.
Instead of creating legal tender such as Dollars as banknotes or transactions in some complex obscure banking system, the government offers an official simple centralized API that represents it instead.
Each citizen or legal entity has an account there, and transfers between registered users are just simple API calls.
Email Updated 2025-07-16
Ciro Santilli's email can be found by cloning one of his repositories on GitHub. It is also given at: Section "How to contact Ciro Santilli".
Embedded system Updated 2025-07-16
Electronic oscillator Updated 2025-07-16
- youtu.be/eYVOdlK15Og?t=66 RC oscillator on breadboard. Produces rectangular wave. Mentions popular integrated circuit that does it: 555 timer IC.
- youtu.be/eYVOdlK15Og?t=175 LC oscillators allows for higher frequencies. Produces sinusoidal output on MHz range. Uses an amplifier to feed back into input and maintain same voltage. Hard to make reliably on breadboard.
- youtu.be/eYVOdlK15Og?t=315 crystal oscillator. Mentions it acts like an LC oscillators. Shows and equivalent model. Wish he had talked more about them. You need support components around it: similarly to the LC case, the amplifier is generally not packaged in.
Electronic test equipment Updated 2025-07-16
Electronic voting Updated 2025-07-16
I would also increase voter percentage due to convenience, and reduce the weight of voting fraud cases, as everyone would be able to check that their own vote was counted correctly.
And then, we would be able to have referendums for basically any important decision being made. No need to go out on the streets and waste your time in a mass protest! Just vote!
It is possible to implement anonymous electronic voting with ring signatures, an algorithm also used by Monero, an anonymity focused cryptocurrency, as mentioned e.g. on this 2004 paper eprint.iacr.org/2004/281.pdf. The system can be set in a way such that you can only deanonymize someone if everyone else, or a very large number of people, conspire against that person.
The same system could also be used to setup forums where only citizens of the country could comment and propose changes and vote on them.
With electronic voting, we could have a system where you can let someone you trust vote for you automatically, or vote automatically for certain subjects alone, a bit like we do by electing senators. But then you would also be able to override specific votes if you wanted to.
In this system therefore, anyone who can proxy vote has to have their vote public, and placed in a decent website that shows clearly who voted for what.
Related:
- www.vote-coin.com/ allows you to delegate your voting power to someone else, that's perfect!
Electroweak interaction Updated 2025-07-16
Electrum Updated 2025-07-16
For the love of God, on Ubuntu install from the official AppImage downloaded from electrum.org/#download, not this random outdated Snap snapcraft.io/electrum:
Elements of the orthogonal group have determinant plus or minus one Updated 2025-07-16
ELF Hello World Tutorial Updated 2025-07-16
Extracted from this Stack Overflow answer.
ELF Hello World Tutorial
.data section Updated 2025-07-16.data is section 1:00000080 01 00 00 00 01 00 00 00 03 00 00 00 00 00 00 00 |................|
00000090 00 00 00 00 00 00 00 00 00 02 00 00 00 00 00 00 |................|
000000a0 0d 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
000000b0 04 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|- 80 4:
sh_type=01 00 00 00:SHT_PROGBITS: the section content is not specified by ELF, only by how the program interprets it. Normal since a.datasection. - 80 8:
sh_flags=037x00:SHF_WRITEandSHF_ALLOC: www.sco.com/developers/gabi/2003-12-17/ch4.sheader.html#sh_flags, as required from a.datasection - 90 0:
sh_addr= 8x00: TODO: standard says:but I don't understand it very well yet.If the section will appear in the memory image of a process, this member gives the address at which the section's first byte should reside. Otherwise, the member contains 0.
- 90 8:
sh_offset=00 02 00 00 00 00 00 00=0x200: number of bytes from the start of the program to the first byte in this section 00000200 48 65 6c 6c 6f 20 77 6f 72 6c 64 21 0a 00 |Hello world!.. |readelf -x .data hello_world.owhich outputs:Hex dump of section '.data': 0x00000000 48656c6c 6f20776f 726c6421 0a Hello world!.NASM sets decent properties for that section because it treats.datamagically: www.nasm.us/doc/nasmdoc7.html#section-7.9.2Also note that this was a bad section choice: a good C compiler would put the string in.rodatainstead, because it is read-only and it would allow for further OS optimizations.- a0 8:
sh_linkandsh_info= 8x 0: do not apply to this section type. www.sco.com/developers/gabi/2003-12-17/ch4.sheader.html#special_sections - b0 0:
sh_addralign=04= TODO: why is this alignment necessary? Is it only forsh_addr, or also for symbols insidesh_addr? - b0 8:
sh_entsize=00= the section does not contain a table. If != 0, it means that the section contains a table of fixed size entries. In this file, we see from thereadelfoutput that this is the case for the.symtaband.rela.textsections.
- a0 8:
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