Nonso

Engineering Consulting & Engr. Research in ICT; Infra,Telecommunications, Cybersecurity. Interested in Election Technology. Europe 🇪🇺 and Nigeria 🇳🇬

[Nonso @Nonsky321]

LP's proof of substantial non-compliance in numbers. Data Analysis evidence on substantial non-compliance by the Maths Professor (Witness PW4)

[tech.explain @techexplain1]

Why does the FIFA ball have a computer inside it?

To find out, we built our own sensor that measures the same data the real FIFA ball does and put it to the test. #cursorpartner

[SparkED @Afghan_Engineer]

Metal detector circuit.

[Electrical Engineering @Electrical_4u_]

What is a Ceramic Capacitor?

A ceramic capacitor is a non-polarized electronic component that stores electrical energy in an electric field. It uses a ceramic material as the dielectric, making it compact, reliable, inexpensive, and ideal for high-frequency circuits, filtering, decoupling, timing, and noise suppression.

How to decode 2-digit and 3-digit ceramic capacitor markings:

The formula: First two digits = significant value, third digit = multiplier (in pF)

• Common codes like 102 = 1 nF, 103 = 10 nF, 104 = 100 nF, 105 = 1 µF

• Unit conversions between pF, nF, and µF

• Quick reference examples for students, technicians, and electronics enthusiasts.
Save this guide for your next electronics project.
#Electronics #ElectricalEngineering #Capacitor #CeramicCapacitor

[Akhilesh Mishra @livingdevops]

Everyone's heard of hard links and symbolic links in Linux. Most engineers memorize the difference without knowing why it exists.

The answer is in how Linux actually stores a file.

Filename → Directory → Inode → Disk Blocks

The directory maps a filename to an inode. The inode holds the metadata, permissions, owner, size, and pointers to the disk blocks. The disk blocks hold the actual data.

Once you see that, the difference stops being two definitions you memorized and starts being obvious.

>> Hard Link

A hard link is just another filename pointing to the same inode.

report.txt ─┐
├──► inode 12345 ───► Data
backup.txt ─┘

Both names point to the same file. Delete one, and the data survives as long as one hard link remains.

This is exactly why `rsync --link-dest` uses hard links for incremental backups. Unchanged files get a new filename pointing at the same inode instead of a duplicate copy. That's where the disk space savings actually come from.

>> Symbolic Link

A symbolic link is a different file entirely. It has its own inode, and that inode just stores a path.

current ───► /opt/java/jdk-21

It's a pointer, not a copy. That's why it's the standard way to switch Java or Python versions, enable and disable Nginx sites, run blue/green deployments off a current symlink, or manage shared config across environments.

Kubernetes uses this exact mechanism. When you mount a ConfigMap or Secret, it writes versioned directories underneath and swaps the symlink atomically to point at the new version.

Your application keeps reading the same path the whole time. No partial writes, no downtime, just a pointer flipping to new data.

Next time someone asks you the difference between a hard link and a symbolic link, don't say "one points to an inode and one points to a path." Explain why Linux was built this way.

That's the difference between memorizing an answer and actually understanding the system.

[SparkED @Afghan_Engineer]

A TRIAC is a three-terminal semiconductor device to control AC power. Unlike an SCR, which conducts in only one direction, a TRIAC can switch current in both directions.

The two-thyristor analogy is used to understand how a TRIAC operates, an actual TRIAC is fabricated as a single integrated semiconductor device rather than two separate SCRs connected together.

[Mustafa @oprydai]

if you’re getting into embedded systems,

learn these protocols in this order:

1. i2c

two wires. many devices.
perfect for sensors, displays, rtc modules, eeproms
master/slave architecture
simple to wire, easy to prototype

this is where most beginners should start.

2. spi

much faster than i2c
separate lines for data in, data out, clock, and chip select
ideal for displays, sd cards, high-speed sensors
more wires, much higher performance

when speed matters, spi wins.

3. uart

point-to-point communication
tx + rx
no clock line
used for debugging, gps, bluetooth modules, microcontroller communication

if you’ve ever opened a serial monitor,
you’ve already used uart.

learn them in this order:

i2c → understand device communication
spi → understand high-speed peripherals
uart → understand serial communication and debugging

these three protocols are everywhere.

master them once,
and you’ll find them in almost every embedded system you build.

[Ella Ogbonnaya @_therealella_]

Good morning everyone, it is news o'clock!
Stay informed.

[Nonso @Nonsky321]

@winexviv Beautiful.

[archivi.ng @StartArchiving]

In 1970, four Lagos officials travelled to Sweden and paid £68,000 for 98 used buses to serve as city buses in central Lagos.

Four months later, the deal became a media scandal in Sweden after reports revealed that the buses were already 17 years old and had been marked for demolition because they were no longer considered roadworthy.

The Swedish State Commission for Traffic Safety said there were no spare parts available to restore them. Yet, by the time of the report, 30 of the buses had been retouched and were ready for shipment to Nigeria.

New Nigerian newspaper observed: "One wonders how buses unsuitable for Stockholm roads can be used in Lagos."

[Nonso @Nonsky321]

Absolutely.

[Param @ParamSiddh]

1. Algebra is good for problem-solving.

2. Geometry is good for visual thinking.

3. Calculus is good for understanding change.

4. Statistics is good for decision-making.

5. Number theory is good for logical discipline.

6. Linear algebra is good for modern science and engineering.

7. Discrete math is good for computer science.

8. Differential equations are good for modeling the real world.

9. Optimization is good for smart planning.

10. Graph theory is good for network thinking.

11. Set theory is good for structured reasoning.

12. Practice is good for mathematical fluency.

13. Curiosity is good for lifelong learning in math.

[Nonso @Nonsky321]

@theairbuser Focus on the context, don't change the topic.

Obi is complaining that, as an opposition figure, he is being harassed by this ruling government; and that people are afraid of identifying with him to avoid persecution.

That's all.

[Nonso @Nonsky321]

@theairbuser Was Buhari trying to decimate the Opposition parties?

Were Opposition parties purportedly derigistered or derognized under Buhari?

Buhari was very careful not be seen as a dictator under democratic government, so he refrained from harrasing Opposition figures.

[Nonso @Nonsky321]

@theairbuser @theairbuser As long as the subject has the education, knowledge, and experience, he surely will bounce back.

Just a matter of time.

[Nonso @Nonsky321]

Flo Balogun can save future world cup tournaments by politely abstaining from the tomorrow's US vs. Belgium match.

[FIFA Media @fifamedia]

FIFA President Gianni Infantino:

“I have seen the public comments regarding the decision of the independent FIFA Disciplinary Committee related to the suspension of Folarin Balogun, and I would like to reiterate a fundamental principle of FIFA’s governance.

“FIFA’s judicial bodies are independent. They operate autonomously, apply the FIFA Disciplinary Code, and decide cases based on the applicable regulations and the specific facts before them. Their independence is essential to the credibility and integrity of football, and this must always be respected.

“Yes, I regularly discuss matters related to the FIFA World Cup with the President of the United States, and on this matter, I did receive a call from President Donald Trump, just as I receive calls from heads of state, government officials, football stakeholders and business executives from around the world on many different issues. During our conversation, I explained that there was an ongoing legal process involving FIFA’s independent judicial bodies and that the case would be decided in due course by the competent bodies. That is how FIFA’s system works, and it is a principle that I will always uphold.

“I read the decisions of the FIFA Disciplinary Committee when they are issued. Sometimes I am surprised by them. Sometimes I agree with them, and sometimes I disagree.

“What I always do, however, is respect those decisions and the autonomy of the bodies that make them. Whether we personally like a decision or not is irrelevant. Respect for independent institutions and the rule of law is what protects the integrity of our competitions and the credibility of FIFA at all times.”

[Chude @Chude_ND1]

The Crisis Started When I Refused His N12.5bn Demand" - DG Adeniyi

— DG Adeniyi says the Chief of Staff asked him for N12.5 billion and the problem began when he refused to pay.

[BLESSED 🥷 @Dee_9889]

Charles Aniagolu Loses Temper on Live TV Over Gbajabiamila Scandal Defence
Veteran broadcaster Charles Aniagolu appeared visibly upset and frustrated during a live television debate on Saturday, in a rare display of anger.
The outburst was triggered by what he described as a weak defence from an APC representative attempting to justify the government’s position on the Gbajabiamila scandal.

[charles aniagolu @charlesaniagolu]

I don’t interview guests to embarrass them. I interview them to test arguments. If an explanation can’t withstand scrutiny, the public deserves to know.

Comparing a fake agency scandal - along with a governance breakdown involving official institutions - to 9/11 isn’t an answer, it’s a distraction.

9/11 was a catastrophic terrorist attack. What Nigerians are asking about is institutional accountability. Those are not the same conversation. When we blur them, we don't illuminate the truth - we detract from it. There's a difference between explaining a failure, and excusing one.

Thank you to everyone who reached out. It’s clear many of us still believe in one simple thing: asking hard questions, and refusing to let bad analogies replace accountability.

Journalism isn't about winning arguments. It's about refusing to let bad arguments replace accountability. That’s the job!

[Nonso @Nonsky321]

@osita_chidoka @DemolaRewaju Congratulations!

[Enomfon Akpan @mydearenomfon]

Hi women, can you post pictures or talk about your academic achievements? I need some motivation this month.

If you see this tweet, share it so women can see it.