Mass Updated 2025-07-16
Optical tweezers Updated 2025-07-16
Sample usages:
Video 1.
Optical Tweezers Experiment by Alexis Bishop
. Source. Setup on a optical table. He drags a 1 micron ball of polystyrene immersed in water around with the laser. You look through the microscope and move the stage. Brownian motion is also clearly visible when the laster is not holding the ball.
Maybe we should talk to innovative schools, as they might be more open to such use of technology.
System call Updated 2025-07-16
Ubuntu Updated 2025-07-16
Ciro Santilli's Linux distro of choice as of 2019.
It ain't perfect, but it's decent enough.
The greatest advantage of it being that it has the likely largest desktop user base, and therefore the highest likelihood that your problems are solved on Ask Ubuntu, and goes together with Ciro's philosophy that "people should do everything in the same way to factor stuff out", especially the open source losers.
Ciro considers that the killer flaw of Ubuntu, and most desktop distros of 2020, is that no one under the Sun knows how to build them fully from source: Linux distribution buildable from source. This is why Ciro based the Linux Kernel Module Cheat on Buildroot, see also: Linux distribution buildable from source.
Isomorphism Updated 2025-07-16
Something analogous to a group isomorphism, but that preserves whatever properties the given algebraic object has. E.g. for a field, we also have to preserve multiplication in addition to addition.
Other common examples include isomorphisms of vector spaces and field. But since both of those two are much simpler than groups in classification, as they are both determined by number of elements/dimension alone, see:we tend to not talk about isomorphisms so much in those contexts.
UNIX Updated 2025-07-16
Cell nucleus Updated 2025-07-16
First install NVM/NPM as shown at and then:
git clone https://github.com/cirosantilli/cirosantilli.github.io
cd cirosantilli.github.io
npm install
ourbigbook .
xdg-open index.html
SendGrid Updated 2025-07-16
The first one Ciro Santilli managed to get working in 2022, and which has a free plan.
You can either verify your sending domain by adding 3 DNS records.
Saw the email on Gmail, but Microsoft Outlook did put it into junk though. Yahoo mail also worked fine.
100 emails a day is not insane, but it is forever and appropriate for a test, I'm happy with that.

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