I recently bought a used 2017 Hyundai Ioniq Electric (28 kWh), and wanted to know how much battery capacity remained. By measuring the amount of energy delivered by the battery when driving from fully-charged to near-empty, it seems like my 9-year-old battery still delivers 27.1 kWh, or 97% of the rated capacity of 28…
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My microwave oven started to malfunction at around five years old. It started to randomly power on the lamp, fan, and turntable. It progressively got worse over several weeks until it was mostly stuck on. The microwave oven is not usable when this happens: It behaves as if the door were open, causing the control panel…
Modern hard drives store an incredible amount of data in a small space, and are still the default choice for high-capacity (though not highest-performance) storage. While hard drives have been around since the 1950s, the current 3.5″ form factor (actually 4″ wide) appeared in the early 1980s. Since then, the capacity…