Physics-first survival & home science
We take the low-tech tricks that promise to cool, heat, and power your home for almost nothing, and show you the building science that proves whether they hold up. No hype. Just the numbers and where they come from.
Two old physics tricks dump a baking attic's heat with no motor. Here's what it really does — and what it can't.
Read →Six feet down the ground sits near 55°F all year. Run your air through it and you get free pre-cooling.
Read →Ranked by what the building-science data actually shows — radiant barriers, night-flush, evaporative, and more.
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