Ciro Santilli @cirosantilli 37 

Many good albums, Ciro Santilli's favorites:

Jean-Luc Ponty Live in Chicago on "Soundstage" (1976)

Source.

Jekyll (software) Updated 2025-07-16

E Ink Updated 2025-07-16

Electronic Ink such as that found on Amazon Kindle is the greatest invention ever made by man.

Once E Ink reaches reasonable refresh rates to replace liquid crystal displays, the world will finally be saved.

It would allow Ciro Santilli to spend his entire life in front of a screen rather in the real world without getting tired eyes, and even if it is sunny outside.

Ciro stopped reading non-code non-news a while back though, so the current refresh rates are useless, what a shame.

OMG, this is amazing: getfreewrite.com/

Jerry Sanders Updated 2025-07-16

AMD Founder Jerry Sanders Interview (2002)

Source. Source: exhibits.stanford.edu/silicongenesis/catalog/hr396zc0393. Fun to watch.

youtu.be/HqWWoaA8pIs?t=779 Newton Minow mandated UHF on all television sets in 1961, and the oscillator needed for the tuner was one of the first major non-military products from Fairchild, the 28918 (?).
youtu.be/HqWWoaA8pIs?t=1053 Fairchild had won the first round of a Minuteman contract, but lost the second one due to poor management

Jim Baggott selects the topics for his books by writing about things he wants to know more about Updated 2025-07-16

Mentinoned at en.wikipedia.org/wiki/Jim_Baggott quoting popsciencebooks.blogspot.com/2012/09/jim-baggott-four-way-interview.html

Ciro Santilli and Jim would get along mighty well: there is value in tutorials written by beginners.

Jimmy Wales Updated 2025-07-16

One thing to note is that Jimmy was a finance worker before starting wikipdia, e.g. he had capital to hire Larry Sanger.

Maybe that's the way to go about it, make money first, and later on change the world.

Starting just after the beginning of the Internet can't hurt either. Though tooling must have been insane back then.

Jim Simons Updated 2025-07-16

Ciro Santilli's wife, who was frustrated with academia at some point, admires the fact that Simons managed to make infinite money, and then invested back in actual science, e.g. through the Simons Foundation.

John Bardeen Updated 2025-07-16

The Story of John Bardeen at the University of Illinois (2010)

Source.

youtu.be/OyV8qSwGUHU?t=976 of when Bardeen demoed the transistor in class is particularly memorable
youtu.be/OyV8qSwGUHU?t=1105 some of his golf colleagues didn't know he had won a Nobel Prize!
youtu.be/OyV8qSwGUHU?t=1260 good jokes about receiving the second Nobel Prize
Congratulations on the second prize. With the third you get to keep the king!
The king asked my mother [Bardeen's son speaking]: "Where's he family"? The mother answered: "Well, they're at home or school". And the kind replied: "Well, next time, bring them!"

Josephson effect Updated 2025-07-16

Discrete quantum effect observed in superconductors with a small insulating layer, a device known as a Josephson junction.

To understand the behaviour effect, it is important to look at the Josephson equations consider the following Josephson effect regimes separately:

A good summary from Wikipedia by physicist Andrew Whitaker:

at a junction of two superconductors, a current will flow even if there is no drop in voltage; that when there is a voltage drop, the current should oscillate at a frequency related to the drop in voltage; and that there is a dependence on any magnetic field

Bibliography:

www.youtube.com/watch?v=cnZ6exn2CkE "Superconductivity: Professor Brian Josephson". Several random excerpts from Cambridge people talking about the Josephson effect

Josephson equations Updated 2025-07-16

Two equations derived from first principles by Brian Josephson that characterize the device, somewhat like an I-V curve:

I (t) = I_{c} sin (φ (t)) \frac{d φ ( t )}{d t} = \frac{2 e V ( t )}{ℏ}

(1)

where:

$I_{c}$ : Josephson current
$φ$ : the Josephson phase, a function $R \to R$ defined by the second equation plus initial conditions
$V (t)$ : input voltage of the system
$I (t)$ : current across the junction, determined by the input voltage

Note how these equations are not a typical I-V curve, as they are not an instantaneous dependency between voltage and current: the history of the voltage matters! Or in other words, the system has an internal state, represented by the Josephson phase at a given point in time.

To understand them better, it is important to look at some important cases separately:

AC Josephson effect: V is a fixed DC voltage

Josephson junction Updated 2025-07-16

A device that exhibits the Josephson effect.

Figure 1.
Electron microscope image of a Josephson junction its I-V curve
. Source.

Quantum computer physical implementation Updated 2025-07-16

Lists of the most promising implementations:

As of 2020, the hottest by far are:

How To Build A Quantum Computer by Lukas's Lab (2023)

. Source.

Super quick overview of the main types of quantum computer physical implementations, so doesn't any much to a quick Google.

He says he's going to make a series about it, so then something useful might actually come out. The first one was: Video "How to Turn Superconductors Into A Quantum Computer by Lukas's Lab (2023)", but it is still too basic.

The author's full name is Lukas Baker, www.linkedin.com/in/lukasbaker1331/, found with Google reverse image search, even though the LinkedIn image is very slightly different from the YouTube one.

As of 2023 he was a PhD student at NYU.

Archaea Updated 2025-07-16

Elastic collision Updated 2025-07-16

Area Updated 2025-07-16

Josephson voltage standard Updated 2025-07-16

The most practical/precise volt standard.

It motivated the definition of the ampere in the 2019 redefinition of the SI base units

Good NIST articles about it:

A Primary Voltage Standard for the Whole World
(2013)

(archive)

History of NIST Quantum Voltage Standards (2011-2022)

The wiki page en.wikipedia.org/wiki/Josephson_voltage_standard contains amazing schematics of the device, apparently made by the US Government.

Figure 1.
Schematic of a typical Josephson voltage standard chip
. Source.

Figure 2.
Sam Benz demonstrating the equipment required the voltage standard
. Source.

The evolution of voltage metrology to the latest generation of JVSs by Alain Rüfenacht

. Source. Talk given in 2023. The speaker is from NIST, and the talk was hosted by the BIPM. Fantastic talk.

youtu.be/VoRab8U2eS0?t=354 the desired output voltage is 10V
youtu.be/VoRab8U2eS0?t=475 lists the three most commonly used 10V implementations currently:
- Japanese one by AIST
- American one by NIST
- German one by PTB

Video 2.

Technical aspects of realizing the DC volt in the laboratory with a JVS by Stéphane Solve

. Source. Talk given in 2023. The speaker is from BIPM, and the talk was hosted by the BIPM. Fantastic talk.

youtu.be/6pgGNJby1lw?t=296 gives the experimental setup used to compare two different references. Notably it involves a nanovoltmeter

Journey to the West Updated 2025-07-16

This is just the most charming of the Four Great Classic Novels.

The definitive television series adaptation is obviously Journey to the West. It just manages to capture all the charms of Sun Wukong and Zhu Bajie.

jq Updated 2025-07-16

Yet another awk-like domain-specific language to do things from the CLI in a ridiculously short humber of character? Oh yes.

Are we in a quantum computing bubble? Updated 2025-07-16

www.reddit.com/r/QuantumComputing/comments/lf1vp2/comment/ibuukcq/?utm_source=reddit&utm_medium=web2x&context=3

Electrical connector Updated 2025-07-16