Assertion: household mirror | /r/CapableOf | equate to a deviation of 5600
Facets:
value: through 8800 nanometers from perfect flatness
type: OTHER
Source sentences:
text: A normal household-mirror made with float glass may have flatness tolerances as low as 9–14λ per inch (25.4 mm), equating to a deviation of 5600 through 8800 nanometers from perfect flatness.