Sunday, January 4, 2026

Firewall Challenge Week 3 – DEV Community

Keep Your Ubuntu-based VPN Server Up to Date

Enterprise-Grade Security for Small Businesses with Linux and Open Source

Ethics for Ephemeral Signals – A Manifesto

When Regex Falls Short – Auditing Discord Bots with AI Reasoning Models

Cisco Live 2025: Bridging the Gap in the Digital Workplace to Achieve ‘Distance Zero’

Agentforce London: Salesforce Reports 78% of UK Companies Embrace Agentic AI

WhatsApp Aims to Collaborate with Apple on Legal Challenge Against Home Office Encryption Directives

AI and the Creative Industries: A Misguided Decision by the UK Government

Unobtainium: Exploring the Definition from TechTarget

Unobtainium is a term used to describe unavailable materials that are either rare, extremely expensive, or simply nonexistent. The word is derived from “unobtainable,” with the suffix -ium added as a nod to chemical elements. Engineers may use the term to describe the unique qualities needed for a material in a given application.

Although unobtainium is not a real material, it is often used to highlight the qualities desired in a material for a specific product or use. The term has been in use since at least the 1950s, with aerospace engineers at Lockheed referring to titanium as unobtainium due to its scarcity at the time.

In different contexts, the cost of unobtainium varies. In fictional scenarios, it may be considered priceless, while in the real world, it could refer to scarce materials with fluctuating market values. In the movie Avatar, unobtainium is depicted as a rare mineral with unique properties that drives the plot.

Oakley’s “unobtainium” is a trademarked rubber compound used in their products to enhance comfort and grip. In the video game Block Story, “unobtainium bars” represent a high-tier metal used for crafting powerful items. Overall, the concept of unobtainium continues to spark discussion about unavailable or futuristic materials and their potential uses in technology.