A cubic centimeter (cc) is volume which is a measure of the displacement of the engine. This is the total volume of all the cylinders (no. of cylinders x cross section area x stroke length) 1000 cc = one liter. so a 1500 cc engine is the equivalent displacement of a 1.5 liter engine.
The trumpeter swan (Cygnus buccinator) is a species of swan found in North America. The heaviest living bird native to North America, it also is on average, the largest extant species of waterfowl with a wingspan that may exceed 10 ft (3.0 m).
It takes 26 pounds of pressure to break a swan's egg and 120 pounds to smash the egg of an ostrich. Finding a place to safely place and hatch their eggs, and raise their young to the point of independence, is a challenge birds have solved in many clever ways. They use artistry, intricate design and complex engineering.