Ciro Santilli @cirosantilli  40

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Anime Updated 2025-07-16

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Telegraph Updated 2025-07-16

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Telephone Updated 2025-07-16

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We are at a point in history where the electrical telegraph is well established.

But people don't want to press letters one by one on a switch. They want to talk!

The first phones appear to have used telegraph lines directly.

Also wired phones don't require modulation, which likely made their development much easier than wireless voice transmission. You just send the signal as a voltage differential directly obtained from the air pressure: how the telephone works.

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Telephone-based system Updated 2025-07-16

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This section is about telecommunication systems that are based on top of telephone lines.

Telephone lines were ubiquitous from early on, and many technologies used them to send data, including much after regular phone calls became obsolete with VoIP.

These market forces tended to eventually crush non-telephone-based systems such as telex. Maybe in that case it was just that the name sounded like a thing of the 50's. But still. Dead.

Video 1.

Long Distance by AT&T (1941)

Source. youtu.be/aRvFA1uqzVQ?t=219 is perhaps the best moment, which attempts to correlate the exploration of the United States with the founding of the U.S. states.

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Telex Updated 2025-07-16

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Not a telephone-based system, needing its own network, and was killed particularly by fax which is. Telex evolved from the Telegraph, which is a binary system at the physical layer.

Video 1.

Siemens T1000 Fernschreiber by dragonforces (2015)

Source.

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Fax Updated 2025-07-16

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Uses telephone lines, and therefore were still usable much much after the Internet made them obsolete, which is quite funny.

Video 1.

Teletype ASR 33 Part 10: ASR 33 demo by CuriousMarc (2020)

Source.

Video 2.

Fax Machine by Museum of Obsolte Objects (2011)

Source.

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Voice over IP Updated 2025-07-16

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Autodidacticism Updated 2025-07-16

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There are two types of people:

those who are autodidacts
those who didn't really learn

Some possible definitions:

learning without a gun pointed at your head
learning from an e-book or video rather than from a talking head 5 rows of chairs in front of you
How that is different from a video, you tell me.

Thus OurBigBook.com.

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Authentic learning Updated 2025-07-16

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Montessori education Updated 2025-07-16

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Paulo Freire Updated 2025-07-16

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en.wikipedia.org/wiki/Paulo_Freire:

During his childhood and adolescence, Freire ended up four grades behind, and his social life revolved around playing pick-up football with other poor children, from whom he claims to have learned a great deal. These experiences would shape his concerns for the poor and would help to construct his particular educational viewpoint. Freire stated that poverty and hunger severely affected his ability to learn. These experiences influenced his decision to dedicate his life to improving the lives of the poor: "I didn't understand anything because of my hunger. I wasn't dumb. It wasn't lack of interest. My social condition didn't allow me to have an education. Experience showed me once again the relationship between social class and knowledge"

OMG so nice.