Scientific Principle
The way systems behave differently depending on their size or resolution. Scaling laws reveal which properties grow proportionally, which change radically, and why the rules that govern one scale often break down at another.
Other principles
By 2050, the world must produce 60% more food on 20% less land. Lars Horsholt Jensen explains why incremental improvement cannot close that gap — and what regenerative farming, biochar, and autonomous strip cropping look like as architectural alternatives.
Fusion's greatest achievement is not the plasma temperature or the confinement geometry. It is seventy years of open, international collaboration across the Cold War divide — and what that model reveals about how civilisation-scale problems actually get solved.
The sun has been running a fusion experiment for four billion years on the same fuel. Søren Bang Korsholm explains the physics, the engineering challenge of confinement, why fusion cannot run away like fission, and what the history of international collaboration reveals about how large problems actually get solved.
Apple takes 30%. YouTube decides what creators earn. The platform tax is structural, and centralised platforms cannot reduce it without disappointing shareholders. Decentralised platforms have no such constraint — and that is not hype, it is mathematics.
The Sun's relationship with Earth's climate is one of the most layered problems in planetary science. Christoffer Karoff walks through orbital mechanics, sunspot cycles, measurement difficulties, and the geoengineering options now receiving serious government funding.
The 'root cause' argument against geoengineering research is not scientific caution. It is a form of moral symbolism that mistakes the starting point for the conclusion. Blocking half a percent of sunlight is technically achievable, cost-competitive, and deserves serious parallel investigation.
Web3 proposes a third shift in how the internet works — from reading and writing to owning. Rasmus Risager Lindegaard explains platform economics, NFT royalty mechanics, decentralised finance, and what needs to happen before any of it reaches mainstream adoption.
Danish agriculture produces food with astonishing efficiency — for the wrong target. We have spent a century optimising animal feed production. The next revolution requires recognising when the metric has drifted from the purpose.
The classroom poster shows eight planets and a clean edge at Neptune. The solar system extends halfway to the nearest star. Mads Fredslund Andersen explains what is actually out there, how it formed, and why the boundary question matters for exploration.
The classroom solar system poster implies a closed system ending at Neptune. That implication shapes how people understand science, exploration, and discovery. It is worth correcting.
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Physics