Search results
Results from the WOW.Com Content Network
Motorcycle goggles or glasses help protect the eyes from dust, wind and debris while riding and typically feature anti-fog treatment and protection against UV rays. For motorcycle sports such as motocross , goggles typically feature a foam rim which seals against the face and layered, tinted lenses to accommodate for varying light conditions.
Man with glasses. A woman with glasses. Glasses, also known as eyeglasses or spectacles, are vision eyewear with clear or tinted lenses mounted in a frame that holds them in front of a person's eyes, typically utilizing a bridge over the nose and hinged arms, known as temples or temple pieces, that rest over the ears for support.
18 is the minimum age to drive a mopeds, motorcycle, and cars. 21 is the minimum age to drive a trucks, buses, or transporting. Drivers have to be previously licensed in cat. 'B' for at least one year before applying for a professional license. 'C' category are usually for load trucks, 'D' for buses and trucks and 'E' for articulated vehicles ...
Edward Scarlett (1688 – 1743 in London) was an English optician and instrument maker, who first invented an eyeglass frame with earhooks in 1727. This frame is held by the nose and ears, at times the glasses were called in contrast to the nasal cannula and temples because they had short straps that pressed on the temple.
9th century – The sine quadrant, was invented by Muhammad ibn Musa al-Khwarizmi in the 9th century at the House of Wisdom in Baghdad. [3]: 128 The other types were the universal quadrant, the horary quadrant and the astrolabe quadrant. 10th century – sea-going junk ships built in China. Late 10th century – Kamal invented in Arab world.
This feature enabled the columbiad to fire solid shot or shell to long ranges, making it an excellent seacoast defense weapon for its day. Used as an artillery piece during the War of 1812 by the United States against the British, the Columbiad was invented around the year 1812 by George Bomford, a colonel in the United States Army. [55]
A year later it was the largest motorcycle-manufacturer, with an annual production of over 500 units. Other British firms included Norton and Birmingham Small Arms Company who began motorbike production in 1902 and 1910, respectively. [18]
Ibn al-Haytham (Alhacen) wrote about the effects of pinhole, concave lenses, and magnifying glasses in his 11th century Book of Optics (1021 CE). [ 45 ] [ 47 ] [ 48 ] The English friar Roger Bacon , during the 1260s or 1270s, wrote works on optics, partly based on the works of Arab writers, that described the function of corrective lenses for ...