The French Brothers Andre and Edouard Michelin pioneered the pneumatic tires for automobiles. In 1895, they took part in the ParisBordeaux car race. Though they did not win the race it kindled the interest of the public, which probably was their main interest. This helped them to become the leaders in pneumatic tire manufacturers in Europe. Legislations were brought out to prevent the use of solid tires on highways as they were hard on the roads. The basic structure of a pneumatic tire is a tube containing the pressurized air as the core and an outer casing made of fabric strengthened with rubberized fiber cords embedded in the rubber wall. This structure remained unchanged for about the next half a century. The rubberized cords ran in a diagonally running in alternating fashion. These cord layers are called plys’ run diagonally in opposite directions the tires came to be known as biasply tires.
Michelin introduced the steel belted radial tires in 1948. The steel cords of the ply run at 90o to the wheel rim (against the 55o of the conventional tires) and runs around the circumference of the tire. These radial tires have the advantages of lesser rolling resistance, longer tread life and better steering characteristics and lesser air pressure against the harder drive and 45% more expense in manufacture. In the normal radial tires rayon, polyester or nylon cords are used in the place of steel fabric. It is generally recommended not to use radial tires in cars designed for biasply tires as the requirements of the suspension system are different. The American tire companies and automakers were reluctant to buy into the radial technology as they feared the additional investment for making tire and modifying the suspension system would be prohibitive. They took to it only after two decades after the radial tires almost became the standard fitment in Europe and elsewhere.
Tire technology underwent another revolutionary change when in the 1970s, Pirelli ushered in the high performance, low profile radials. The latest in technology which is really revolutionary is the tubeless tire introduced in 1955 by BFGoodrich. There were a few attempts in England and South Africa fell on the wayside due to technical difficulties in manufacture. They have special continuous integral molded ribs into the bead of the tire so as to seals with the flanges of the rim when inflated. These tires are much safer and rides are smoother.
The immune system is referred to as the defense system that protects the body against different kinds of diseases. The stronger the immune system, the higher will be the chances of the body staying away from diseases. Suffering from immunodeficiency or immune system disorder is a cause of concern and must be immediately addressed.
Symptoms
Causes
Disorders related to the immune system largely happen as a result of deficiency caused by:
Risk factors
Hypertension is a condition in which the pressure exerted by the blood against the arterial walls is higher than the normal. It will not show up any visible symptoms, but can lead to further complications like heart disease, stroke, kidney failure, etc. High blood pressure can be dangerous as the patient does not realize the condition, until it affects other body organs.
As the health condition is common among adults in the US, the misconceptions about the condition are also high. Here are five commonly asked questions and answers regarding the causes of high blood pressure.
Most of us get swayed again by the alluring, flashy shades of cosmetic brands. When more and more cosmetics are introduced day by day, it keeps us determined to understand which product works better for our skin type, rather than going and trying every product introduced. IT Cosmetics is one brand one should definitely try, with a complete range of gorgeous-looking, high-quality makeup line. Read on about some of the most remarkable face products by IT Cosmetics:
CC+ Vitality Brightening Creme Blush: For those beauty dolls, CC+ Vitality Brightening Creme Blush helps you obtain the perfect blush for your glowing, chubby cheeks. Through its antiaging peptides, antioxidants silk and drops of light technology, this creme blush quickly blends over the imperfections and delivers youthful looking skin. This stunning compact has got two beautiful shades Perfect Pink and Naturally Pretty.
Your Skin But Better CC+ Cream with SPF 50+ Travel Size: The Your Skin But Better CC+ Cream with SPF 50+ Travel Size cream has got piles of benefits it works as an anti-aging serum, a primer, and even a moisturizer and as a SPF 50 sunscreen. It is pint-sized and is very easy to carry even inside a clutch. The cream has been clinically proven to correct and protect over or under-hydration, blackheads, whiteheads, pimples and freckles, etc. Even after a tiring day, it tends to leave the skin looking extremely nourished.
It’s Your Beauty Award-Winning Must-Haves Palette: Just like the name suggest, the It’s Your Beauty Award-Winning Must-Haves Palette is a great all-round beauty kit. It smoothens the pores and lends a dramatic, statement look to the eyes via its Bye-Bye Pores Pressed Powder. The Bye-Bye Pores Press Blush gives a hint of natural color to the cheeks and the Vitality Matte Bronzer illuminate and sculpts the skin and the jawline. You can literally transform the way you look with this 4-in-1 compact.
Confidence in an Eye Cream: Redefine your skin texture with this Confidence in an Eye Cream which is a great supplement for all skin types. This cream transforms and restores the skin’s original, soft texture to lend it a natural look, rejuvenating the skin to make it look healthier and younger as well. Also, it does away with the pores, wrapping over the uneven texture and discolorations.
Hello Lashes Clinically Shown 5-in-1 Mascara: One can enhance the beauty of the eyes with Hello Lashes Clinically Shown 5-in-1 Mascara. The mascara not only beautifies the eyes but also conditions the lashes using key ingredients such as Green Tea, Jojoba, and vitamins specially developed by experts. The color lasts for 8 hours without smudging. The brush design lets the user curl the lashes effortlessly and make the eyes pop.