Illumina by Ciro Santilli 37 Updated 2025-07-16
The by far dominating DNA sequencing company of the late 2000's and 2010's due to having the smallest cost per base pair.
Illumina actually bought their 2010's dominating technology from a Cambridge company called Solexa.
To understand how Illumina's technology works basically, watch this video: Video 1. "Illumina Sequencing by Synthesis by Illumina (2016)".
Video 1.
Illumina Sequencing by Synthesis by Illumina (2016)
Source.
The key innovation of this method is the Bridge amplification step, which produces a large amount of identical DNA strands.
Banheiros da USP by Ciro Santilli 37 Updated 2025-07-16
Semi-comical student website to review the toilets of the University of São Paulo. Some of the toilets had a reputation for being terrible.
One is reminded of Crushbridge.
Spark-gap transmitter by Ciro Santilli 37 Updated 2025-07-16
The first type of device that allowed sending Morse code without wires, as opposed to the wired electrical telegraph that previously existed.
Naval communications was one of the first major applications, as you can't have wires on boats!
Wireless voice transmission came about with modulation.
Video 1.
Spark-gap transmitter at the at the The Museum of Radio and Technology Jeri Ellsworth (2017)
Source.
SendGrid by Ciro Santilli 37 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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