Technology

How Wi-Fi Actually Works: The Physics of Wireless Signals

Wi-Fi is not magic. It is radio. Understanding the physics — frequencies, antennas, OFDMA, the difference between signal strength and throughput — explains why your 300 Mbps plan delivers 80 Mbps and what to do about it.

17 April 2026

70 entries

Latest signals

Finance & Investing

The Beginner's Guide to Personal Finance in Your 20s

You will earn more in your 30s than you do today, but you will never have more time. The financial decisions you make in your 20s have decades to compound. Here is the framework that actually works.

Science & Health

How Caffeine Actually Works in Your Brain

Caffeine does not give you energy. It blocks the molecule that makes you feel tired. Here is the actual neuroscience of the most widely used drug on earth, why your morning coffee is timed wrong, and what tolerance really is.

Psychology & Behaviour

The Science of Habit Formation: Why Most New Year Resolutions Fail

Roughly 80 percent of New Year resolutions are abandoned within six weeks. The reasons are not lack of willpower but bad design. Here is what neuroscience and behaviour research actually say about how habits form.

Finance & Investing

How to Read a Balance Sheet: A Plain-English Guide for Non-Accountants

A balance sheet is a snapshot of what a company owns, owes, and is worth on a given day. Learn the accounting equation, walk through a worked example, and spot the red flags professional investors look for.

Science & Space

The Three-Body Problem Explained: Why Astronomy's Simplest Question Has No Answer

Newton solved the motion of two gravitating bodies in 1687. Add a third and the problem becomes mathematically intractable, technically chaotic, and unexpectedly beautiful. Here is why the simplest question in celestial mechanics has no closed-form answer.

Finance & Investing

The Best ETFs to Buy in 2026: A Data-Driven Ranking for Long-Term Investors

Index ETFs do most of the work for most investors. Here is an honest ranking framework for 2026: which core US, international, bond, sector and factor funds belong in a portfolio, and why expense ratios still matter more than almost anything else.

Finance & Investing

Bitcoin in 2026: After the Halving, Where Does the Price Actually Go?

The April 2024 halving cut Bitcoin issuance in half. The 2024-2025 cycle delivered a new all-time high above $100,000 but the historical four-year pattern is fraying. ETF flows, sovereign reserves, and Trump-era policy are rewriting the script.

AI & Productivity

NotebookLM vs ChatGPT vs Claude for Research: Which AI Should You Actually Use?

Three AI tools dominate research workflows in 2026, and they are not interchangeable. NotebookLM is for staying inside your sources. ChatGPT is for going outside them. Claude is for thinking carefully about what is in front of you.

Gaming & Tech

The Most Anticipated Games of 2026: Hollow Knight Silksong, GTA 6, Death Stranding 2 and More

A reality check on the games dominating wishlists in 2026: GTA 6 is finally close, Silksong shipped after seven years, Kojima delivered a sequel only he could make, and Insomniac, Playground and Hello Games are all due to show up.

Science & Health

CRISPR in 2026: The Gene-Editing Breakthroughs Actually Changing Medicine

Twelve years after the first patient was treated, gene editing is no longer hypothetical. Casgevy is curing sickle cell disease. Verve is editing hearts. Prime editing is finally working. The science is breathtaking. The price tag is the obstacle nobody has solved.

Technology

The Best Laptops for Programmers in 2026: M4 MacBook Pro vs Framework vs ThinkPad X1

Three laptops define the serious developer market in 2026, and they could not be more different in their philosophy. The MacBook Pro M4 Max, the Framework Laptop 16, and the ThinkPad X1 Carbon Gen 13 each win, decisively, for a different kind of programmer.

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