buoyan
cy
1
the property of something weightless and insubstantial
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2
a feeling of hopefulness and confidence that makes one remain cheerful, especially in sad or unpleasant situations
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3
the tendency of an object to float or rise in a fluid, like water or air, due to the upward force exerted by the fluid
- Life jackets rely on buoyancy to keep people safe in water.
- Hot air balloons use buoyancy to lift into the sky.
- Ships are designed with buoyancy to stay afloat in the ocean.
- Submarines control buoyancy to dive and surface underwater.
- Understanding buoyancy helps engineers design efficient boats and submarines.
4
cheerfulness that bubbles to the surface
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