| 31. | Increasing tower spacing will increase the contact angle, but also increase the free energy barrier.
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| 32. | Figure 6 depicts the advancing and receding contact angles.
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| 33. | The contact angle the droplet had immediately before receding inward is termed the receding contact angle.
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| 34. | Surfaces with a contact angle 90?as hydrophobic.
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| 35. | The contact angle the droplet had immediately before advancing outward is termed the advancing contact angle.
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| 36. | When a pipette injects a liquid onto a solid, the liquid will form some contact angle.
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| 37. | Generally, cases where the contact angle is low are considered of higher adhesion per unit area.
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| 38. | The receding contact angle is now measured by pumping the liquid back out of the droplet.
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| 39. | By creating micro structures which form specific contact angles with water, fuel cannot be drawn backwards.
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| 40. | The contact angle the droplet had immediately before receding inward is termed the receding contact angle.
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