There re no silly buoyancy tanks it s permanently, positively buoyant.

By contrast, a flying boat uses its fuselage for buoyancy.

But this financial market buoyancy is at odds with political events and real economic indicators.

An economy hit by a shock does not maintain its buoyancy rather, it becomes a leaky balloon.

When the diver carries many diving cylinders, especially those made of steel, lack of buoyancy becomes a problem.

The use of closed vessels also negated the buoyancy that had disguised the mass of the gases of combustion.

A correction is made for the buoyancy of air in the lungs and other gases in the body spaces.

Appropriate political reforms must come first when they do, Egypt s economic and financial revival will surprise many with its buoyancy and speed.

It generates all of the buoyancy, all of the payload for the craft, and the batteries are down here hanging underneath, exactly like a balloon.

Instead, developing country leaders must draw on the experiences of both developed countries and their peers to design tax policies that meet the basic requirements of operability, buoyancy, and stability.

In many cases oil and gas is known to seep toward the surface as a hydrocarbon reservoir will usually leak or have leaked towards the surface through buoyancy forces overcoming sealing pressures.

In recent times many aviation endurance records have been achieved by hybrid balloon designs such as the Rozière Balloon which combine the altitude control of hot air balloons with the permanent buoyancy of lifting gases.

See also Acoustic tweezers Optical levitation Radiation pressure Electrostatic levitation Magnetic levitation Aerodynamic levitation Buoyancy References External links McGraw Hill AccessScience Acoustic radiation pressure A Multi Transducer Near Field Acoustic Levitation System for Noncontact Transportation of Large Sized Planar Objects Live Science Scientists Levitate Small Animals

According to a story by non profit US radio broadcaster NPR, the dinghy that took them across started taking on water, so Yusra and her sister, both strong swimmers, jumped in the sea to give the half sunk boat more buoyancy. After spending three and half hours in the water, she finally reached the island of Lesbos.