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Footwear has been used by humans since prehistoric times, with paleoclimatology suggesting that they would have been needed in some areas of human settlement by at least 50,000 years ago during the Last Glacial Period. Osteologists have found evidence of the effect of footwear on human remains by around 40,000 years ago. [1]
A woman wearing sports bra and boyshorts, conventionally women's sportswear, but now worn as casuals or athleisure by women in the West. Clothing physiology is a branch of science that studies the interaction between clothing and the human body, with a particular focus on how clothing affects the physiological and psychological responses of individuals to different environmental conditions.
While the corset has a complicated history, Dr. Tasneem Bhatia tells Yahoo Life that if you want in on the trend, you should feel fairly safe doing so — as long as you follow some simple guidelines.
Personal flotation devices being worn on a navy transport . A personal flotation device (PFD; also referred to as a life jacket, life preserver, life belt, Mae West, life vest, life saver, cork jacket, buoyancy aid or flotation suit) is a flotation device in the form of a vest or suit that is worn by a user to prevent the wearer from drowning in a body of water.
Strut is a common name in timber framing for a support or brace of scantlings lighter than a post. Frequently struts are found in roof framing from either a tie beam or a king post to a principal rafter. Struts may be vertically plumb or leaning (then called canted, raking, or angled) and may be straight or curved.
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Ultraviolet light, specifically UV-B, has been shown to cause cataracts and there is some evidence that sunglasses worn at an early age can slow its development in later life. [18] Most UV light from the sun is filtered out by the atmosphere and consequently airline pilots often have high rates of cataracts because of the increased levels of UV ...
Many currently manufactured automobiles worldwide use MacPherson strut suspension, which utilises one ball joint per side, between the lower end of the strut and the control arm, with the necessary small amount of articulation at the top of the strut being usually provided by an elastomeric bearing, within which is a ball bearing to allow free ...