How your phone knows up
The tiny silicon diving boards
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Spinning without moving
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The brain behind the sensors
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YOUR GOAL
Master of How your phone knows up
steve MEMS Accelerometers
Microscopic silicon bends with gravity, spinning your screen as you tilt it.
Microscopic airbags: The sensor that rotates your screen was originally designed in the 1990s to trigger car airbags during a crash.
What physical material is primarily used to etch the microscopic gears and combs inside phone sensors?
Which industry first popularized the mass production of tiny silicon accelerometers in the 1990s?
What mathematical tool do phones use to prevent natural hand shakes from accidentally rotating the screen?
How many directional axes do modern smartphone accelerometers measure to determine orientation?
When your phone is lying completely flat on a table, what acceleration force does its accelerometer measure?
What electrical property changes when the microscopic fingers inside an accelerometer bend?