The TPMS warning is the least-understood light on your dashboard, and behind it sits a genuinely hard embedded-systems problem: a sealed sensor that must survive a decade inside a spinning tire at highway g-forces on a battery it can never recharge. Direct versus indirect, the RF mess, the relearn headache, and the deadly recall that made it the law.
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Modern Tire Pressure Monitoring Systems: The Engineering Behind the Most-Ignored Light -
Starlink: How a LEO Constellation Delivers Low Latency Starlink delivers fiber-grade latency from orbit by trading the old satellite-internet assumption that "satellite" means "high altitude" for the opposite. We walk the physics of a 550 km link, the phased-array dish, satellite handoffs every few minutes, the laser inter-satellite mesh that bypasses ground stations, and the honest trade-offs of capacity, weather, and where this beats fiber and where it does not.