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Common logarithm of viscosity against temperature for B2O3, showing two regimes
Common logarithm of viscosity against temperature for B2O3, showing two regimes
In the University of Queensland pitch drop experiment, pitch has been dripping slowly through a funnel since 1927, at a rate of one drop roughly every
In the University of Queensland pitch drop experiment, pitch has been dripping slowly through a funnel since 1927, at a rate of one drop roughly every decade. In this way the viscosity of pitch has been determined to be approximately 230 billion (2.3×1011) times that of water.
Honey being drizzled
Honey being drizzled
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Concorde with 'high' wave drag tail
Concorde with 'high' wave drag tail
Concorde with 'low' wave drag tail (N.B. rear fuselage spike)
Concorde with 'low' wave drag tail (N.B. rear fuselage spike)
Hawk aircraft showing base area above circular engine exhaust
Hawk aircraft showing base area above circular engine exhaust