Richard Djarbeng's Technical Posts
(140) Posts
How to Check Your Website's Performance: A Case Study on Lusion.co
Recently, my friend Nathaniel Nyakotey checked out the visually stunning website at lusion.co. With its sleek graphics, intricate animations, and immersive WebGL interactions, Nathaniel estimated it would consume around 300MB...
What is Particulate Matter (PM2.5) and the Environmental Significance
Particulate Matter (PM) comprises a diverse mix of solid and liquid particles suspended in the atmosphere, varying in size, chemical composition, and origin (U.S. Environmental Protection Agency [EPA], 2023). Among...
Chirp: Transmitting Data Through Sound
In the ever-evolving world of data transfer, a project called Chirp caught my attention on GitHub. Developed by solst-ice, Chirp enables users to send and receive data using sound waves,...
OpenCut: A Free, Open-Source Alternative to CapCut
Update (March 2026): The OpenCut project has officially entered beta! You can now try the beta version for yourself directly in the browser. If you’re a video editor frustrated with...
From the Norrsken Hub in Kigali, A Look at the Deals Shaping Africa's Future
Africa’s technology ecosystem is moving forward in 2025, as startups secure big investments and join forces to make a bigger impact. From mobile apps for money transfers to solar power...
How to Recover an Unsaved PowerPoint Presentation After Closing
How to Recover an Unsaved PowerPoint Presentation After Hitting “Don’t Save” Accidentally clicked “Don’t Save” on your PowerPoint presentation? Don’t panic! PowerPoint’s built-in AutoRecover feature can help you retrieve your...
Understanding the Trend in Published Papers
In scientific research, the journey from a novel idea to a widely accepted standard is an iterative process. Diagrams often outline this lifecycle, from initial papers to standardization and public...
GSM module HTTP GET & POST request using arduino microcontroller and SIM900
This post covers the procedure to send a GET and POST request with AT commands using the SIM900 GSM/GPRS module and the Arduino UNO. It is useful for retrieving data...
This Week in Air Quality Research: Novel Insights and Sensor Advances (23-June-2025)
I have been keeping up with air quality research to understand emerging risks, technological advances, and policy implications. This week I’m spotlighting literature that highlights the increasing role of low-cost...
Why Websites Love to Overanalyze Everything
So, I was scrolling through Twitter the other day, and I came across this gem: a post complaining about how websites never just get to the point. If you ask...
List of Banks in Rwanda and Their Services
This guide is designed for foreigners arriving in Kigali, Rwanda, to help you navigate the banking landscape. There are more than 16 commercial and microfinance banks operating in Rwanda, with...
AI: What It Is, How It’s Seen, and How to Stay Informed
Artificial Intelligence (AI) is driving innovation and sparking curiosity, but the hype can make it hard to see clearly. Whether you want just enough knowledge to follow AI news and...