Applications of Circles in Real Life

 introduction

A circle is a two-dimensional shape defined as a collection of the equidistant points on a plane from a certain fixed point. The fixed distance from the center is called the radius of a circle. The diameter of the circle is twice its radius. The circle is the shape that has the largest possible ratio of area to the perimeter. We can measure the perimeter and the area of the circle to calculate the distance.

A circle is a closed figure with a curved boundary and has many parts that represent the properties and characteristics of a circle.

The different parts of a circle are :

• Circumference
• Radius
• Diameter
• Chord
• Tangent
• Secant
• Arc
• Segment
• Sector

Applications 

1.Architects can use the strength of the circle while manipulating its appearance.

  The circle is the strongest 2-dimensional shape, so is the use of semicircular arches in                   architecture. Semicircles are often also found in the designs of amphitheaters.

The circular window and modular design gives this icon of the Japanese Metabolist movement its distinctive, easily recognizable appearance. Each capsule features a centrally placed window that illuminates each modular space.

2..Circles are most commonly used in Ferris wheels .A Ferris wheel is an amusement        park ride comprised of a large wheel rotating on an axis. There are cars or compartments          where people can sit or stand that are evenly spaced about the circumference of the                    circle. The wheel rotates slowly, taking passengers on a ride around the                            circumference of the circle.

 All the points along the outer rim of the wheel are equidistant from the center.  The lights on this one can help you see that a little easier. 

3.The third application of circles is in the camera lens of a camera .Lenses are circular in shape because this makes focusing and adjusting focal length (on zoom lenses) much simpler. This is because focusing and zooming requires changing the distance between the various pieces of glass inside the lens.

Early camera makers quickly figured out that round lenses did the most efficient job of focusing light onto film. cameras produce rectangular pictures because the sensor is rectangular; the illuminated area is circular and some light is wasted off the edges of the sensor. In film cameras the sensor is the film, which is stored in a roll as tape, and making the frames bigger so they catch all the light would waste film.

4.Last but not the least , circles are used in the wall clock. A clock is a complete circle having 360 degrees. It is divided into 12 equal parts i.e. each part is 360/12 = 30°. As the minute hand takes a complete round in one hour, it covers 360° in 60 minutes. In 1 minute it covers 360/60 = 6°/ minute.

The clocks started as solar clock which the design had to be circular for the clock to work using the sun's position and then we have mechanical clocks that use circular cogs to move so circular is easier.