Space is All of This

The domain that connects childhood ambition, daily infrastructure, modern conflict, and the biggest questions.

4 hrs ago • Harry O'Hanley

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Going Off Nominal

Engineering for the worst case

Jan 8 • Harry O'Hanley

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December 2025

How Networks Survive

Babbling idiots, cut wires, and unforeseen failures that can threaten the mission

Dec 17, 2025 • Harry O'Hanley

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Why Three Sensors, Not Two

The best architectures don't just detect failures, they absorb them

Dec 10, 2025 • Harry O'Hanley

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Eight Paths to Nuclear Fuel Security

A thought experiment

Dec 3, 2025 • Harry O'Hanley

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November 2025

Build Hardware for Tomorrow

Managing program-market fit across multi-year development

Nov 25, 2025 • Harry O'Hanley

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How to Fuel a Nuclear Reactor

The geopolitically charged supply chain that powers the world's reactors

Nov 18, 2025 • Harry O'Hanley

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Snowforting

Don't miss the fight for the fort

Nov 9, 2025 • Harry O'Hanley

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October 2025

The Shape of Industrialization

Boeing outsources most of the 737. SpaceX builds most of Falcon 9 in-house. The Navy owns submarine operations but not manufacturing. Each organization…

Oct 26, 2025 • Harry O'Hanley

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Quick Look: Ukraine's Aerial Defenses

What 50,000 drone and missile attacks reveal about modern air defense

Oct 19, 2025 • Harry O'Hanley

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Nuclear 03: How Nuclear Reactors Work

Nuclear reactors come in many different forms, shaped by technical constraints and strategic priorities. This essay explores the various commercial…

Oct 12, 2025 • Harry O'Hanley

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September 2025

Designed in 36 days and Built for $10: How the Sten Gun Saved Britain

An example for modern defense production

Sep 28, 2025 • Harry O'Hanley

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