Nature. Shapes were there long before there was life on earth, or indeed, before there was the solar system.
Shapes that come from nature and do not look man made. Like flowers and flowing lines.
There are a lot. A very interesting one is seen in sunflowers, the golden spiral. The seeds grow in a spiral according to the Fibonacci Sequence. Other shapes include the triangle (as seen in river deltas and mountains), the bowl (as seen in valleys), spheres (like our planet or even fruits), stars (flower petals). There are lots of shapes in nature. Lots of these shapes have influenced great minds to find out the reason behind them.
geometric
Irregular shapes are all around. Most shapes are irregular.
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Streamlined shapes make them faster and more fuel-efficient.
Fish, birds and snakes are a few
Airplanes have streamlined shapes to reduce drag and improve aerodynamics. Fish have streamlined bodies to move efficiently through water. Cars often incorporate streamlined designs to enhance fuel efficiency and reduce wind resistance. Speedboats are built with streamlined hulls to glide smoothly through water. Bullet trains have streamlined profiles to decrease air resistance and achieve high speeds.
Smooth, streamlined shapes reduce air resistance. Symmetric shapes ensure flight stability.
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Streamlined shapes help aerodynamics and speed .
Jet planes have streamlined shapes to reduce air resistance, which allows them to fly efficiently at high speeds. The streamlined design helps the plane cut through the air more easily, reducing drag and fuel consumption. Additionally, the shape improves the plane's aerodynamics, making it more stable in flight.
Yes.
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Animals like sea urchins, some species of pufferfish, and certain types of crabs are not streamlined. Their body shapes are more round or bulky, which can make them slower swimmers compared to streamlined animals like dolphins or sharks.
The drag coefficient varies among different shapes due to their aerodynamic properties. Shapes with streamlined designs, such as airfoils, have lower drag coefficients compared to shapes with more blunt or irregular surfaces. This is because streamlined shapes allow for smoother airflow around the object, reducing drag. In contrast, shapes with sharp edges or protrusions create more turbulence in the airflow, resulting in higher drag coefficients.