Introduction: Airplanes have revolutionized modern transportation , allowing us to traverse vast distances quickly and efficiently. But have you ever wondered how these colossal machines take flight? In this blog post, we'll delve into the fascinating science behind aviation and explain how airplanes soar through the skies. Aerodynamics: A key concept in understanding flight is aerodynamics. This branch of science deals with the study of air in motion, particularly the interaction between the aircraft and the air it moves through. Lift: Lift is the force that allows an airplane to overcome gravity and ascend into the sky. This ess ential force is generated primarily by the wings. Here's how it works: Shape of the Wings: Airplane wings are carefully designed with a curved upper surface and a flatter lower surface. This shape creates a pressure difference, with lower pressure on top and higher pressure on the bottom. As a result, the airplane gets pushed upward, creating lift. ...
1. Refraction of Light: The primary cause of a rainbow is the refraction of sunlight. Sunlight is composed of a spectrum of colors, with each color having a different wavelength. When sunlight enters a raindrop, it slows down and bends due to the change in the refractive index between air and water. This bending is called refraction. 2. Dispersion: As the sunlight enters the raindrop and slows down, it is also dispersed or spread out into its individual colors. This occurs because each color in the spectrum has a different wavelength, and as a result, they are bent by different amounts. 3. Reflection: Once inside the raindrop, the light undergoes multiple internal reflections off the inside surface of the raindrop. These reflections cause the light to change direction multiple times. 4. Total Internal Reflection: At a certain angle of incidence, known as the critical angle, the light is totally internally reflected within the raindrop. This phenomenon traps the light inside t...