Treat Every Roof as a Small Watershed
A roof does more than shed rain. Treating it as a small watershed reveals a measurable water budget—and the storage, health and maintenance choices hidden downstream.
Five AI Ideas May Still Be One Idea
Generative AI can make brainstorming feel abundant while options converge on the same mechanism. A structural diversity audit reveals what the list actually leaves out.
Vortex tubes: why compressed air leaves hot and cold
A Ranque-Hilsch vortex tube divides one compressed-air stream into hot and cold outlets. Follow the swirling flow, energy balance and costly trade-off behind its pump-free cooling.
A Public Form Should Survive an Interruption
When a public online form loses work after a timeout or failed upload, interruption becomes exclusion. A resilient draft can preserve progress without keeping personal data forever.
Why Plywood Rotates the Grain
Plywood rotates the grain between veneers to spread directional weakness. A paper-laminate experiment reveals the gains in stability, consistency and two-way performance.
Coriolis flowmeters: turning a tube’s twist into mass flow
A Coriolis flowmeter makes a tube vibrate, then measures the tiny timing difference caused by moving fluid. Follow the force, phase and resonance physics, plus the limits.
Your Microwave Turntable Is an Averaging Device
A microwave turntable moves food through an uneven electromagnetic field rather than erasing hot spots. A careful temperature-map test reveals what rotation, stirring and standing each contribute.
The Engine That Turns a Temperature Difference Into a Note
A hot stack inside a resonant tube can turn a temperature difference into sustained sound. Explore the thermoacoustic engine's phase trick, thermal penetration depth, real prototypes and limits.
What If Every Building Published Its Empty Hours?
Cities contain schools, halls and offices that sit unused for long periods. A room-hours ledger could reveal civic capacity—but only if access, care and responsibility are designed with it.
TT: Getting inside physics
TT joins Alkemata with a concrete approach to physics: energy, waves, measurement, and the people who turn scientific ideas into things that work.