Knowledge bytes - Craig 'n' Dave

Will Quantum Computers Break Encryption?

Could quantum computers really break encryption and put our data at risk? We explore the reality behind the hype, from qubits and Shor’s Algorithm to the future of post-quantum security.

7 September 2026

Digital ID cards: The future of work or a privacy nightmare?

Are digital ID cards the future of convenience or a threat to privacy? Explore the benefits, risks, and debate behind the UK’s proposed digital ID system.

31 August 2026

Why does your phone get dimmer in the sun?

Ever wondered why your phone dims when you’re in the sun? It’s not being lazy—your device is protecting itself from heat, battery strain, and OLED burn-in.

28 August 2026

Do we really use database normalisation in the real world?

Database normalisation keeps data consistent and tidy, but in the real world, speed often wins over strict rules. Discover how companies like Twitter balance correctness with performance.

26 August 2026

Why do batteries get worse over time?

Ever wondered why your phone battery doesn’t last like it used to? Lithium-ion batteries degrade over time due to stress, heat, and chemical reactions, slowly reducing their charge capacity.

24 August 2026

Why does a weak signal drain your phone battery so fast?

Ever wondered why your phone battery drains so fast when the signal’s weak? It’s not the battery’s fault—your handset is panicking, shouting at towers, and retransmitting data nonstop.

21 August 2026

What is refactoring?

Refactoring is the process of improving your code without changing what it does. Discover why every professional programmer loves a good refactor and how it keeps your code efficient, readable, and ready for the future.

19 August 2026

Why your bluetooth audio always seems a little delayed?

Ever wondered why your Bluetooth headphones lag behind the action on screen? It’s not the signal — it’s all the behind-the-scenes “paperwork” your audio has to go through before it reaches your ears.

17 August 2026

How does optical disc burning work?

Discover what really happens when you “burn” a CD or DVD—it’s not fire, it’s a laser precisely encoding your data onto the disc. From pits and lands to rewritable mood-ring discs, here’s how your files get stored.

14 August 2026

What is a VPN?

Ever wondered how a VPN really works? Think of it as a clever middleman that keeps your online activity private and your data safe.

12 August 2026

Should parents be sharing your life on social media?

“Sharenting”—where parents share their children’s lives online—might seem harmless, but it comes with risks like identity theft, cyberbullying, and impacts on self-esteem. Learn how families can share responsibly while keeping kids’ privacy safe.

10 August 2026

What Is Concurrency in Computing?

Concurrency is the clever trick your computer uses to juggle multiple tasks at once—without actually doing them simultaneously.
From web pages to deadlocks, discover how this behind-the-scenes magic keeps your digital world running (mostly) smoothly.

7 August 2026

Why are silicon wafers round when chips are square?

Ever wondered why silicon wafers are round when everything they power is square? It’s all down to the way we grow and slice silicon — a fascinating mix of physics, efficiency, and a touch of irony.

5 August 2026

What Is the Best Material for a Smartphone?

Your smartphone isn’t made from one perfect material — it’s a carefully engineered compromise of plastic, metal, glass, and ceramic. Each choice solves a problem… and creates another.

3 August 2026

AI torrenting may not be so legal after all

AI training is facing a legal reality check as courts draw the line between fair use and copyright infringement. We look at why data provenance and licensing are now critical in modern AI development.

31 July 2026

Why are LEDs so efficient?

Ever wondered why LEDs use so little energy? Discover how semiconductors create light directly, using far less energy and heat than traditional light bulbs.

29 July 2026

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