Interesting Mind

Many years of driving I have owned several cars with rear-wheel drive, front-wheel drive, four-wheel drive and now I own a Mahindra Thar with four-wheel drive. I bought the Mahindra Thar not because it had four wheel drive but because it was a nice looking car designed for country and off-road traveling, which is what I enjoy doing. But since I bought it I am curious to know the difference between all-wheel drive and four-wheel drive, and here's what I found out? Four-wheel drive doesn’t work   all the time under normal conditions, only torque is delivered to rear wheels which drive the vehicle forward while the front wheels spin freely. The driver has to push a button or pull a lever to activate a modern four-wheel drive system. But four-wheel drive isn't meant to be ON all the time. So, we have to know when to turn it ON and turn it OFF. But on the other hand all-wheel drive is ON all the time and the computer manages the system by calculating input parameters. Just going dow...

Modern airplanes are truly engineering marvels. They overcome high turbulence and unpredictable currents in the air and undertaking many complex maneuvers to complete their flights. Have you ever thought of how the pilots are able to do this? Or what happens to the aircraft when the pilot operates plane controls? In this article, we will explore how an airplane flies, and how pilots are able to control an airplane in a logical yet simple way.  First, let's have a closer look at modern aircraft's wings and tails. One amazing thing you will notice is that they are not made as a single body. The wings and tails of the aircraft contains many movable parts. The most fascinating thing about the whole wing, and the different parts of it, is that they form a very special shape in fluid mechanics. That is the airfoil shape. Just by understanding the physics behind this simple shape will allow you to completely understand airplane physics.  Let's learn more about airfoils. An airfoil...