AMAZING FACTS
BIG QUESTIONS
ENTERTAINMENT
LITERATURE
MOVIES
MUSIC
POP CULTURE
TV
GEOGRAPHY
WANDERLUST
HISTORY
HOLIDAYS
CHRISTMAS
LANGUAGE
WORDS
QUIZZES
ALL STORIES
NEWSLETTER
Tien Nguyen
Joined: Feb 17, 2016
How Do Transition Lenses Work?
%20%20--%3E%0A%3Csvg%20version%3D%221.1%22%20id%3D%22Layer_1%22%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20xmlns%3Axlink%3D%22http%3A%2F%2Fwww.w3.org%2F1999%2Fxlink%22%20x%3D%220px%22%20y%3D%220px%22%0A%09%20viewBox%3D%220%200%20684.6%2068.1%22%20style%3D%22enable-background%3Anew%200%200%20684.6%2068.1%3B%22%20xml%3Aspace%3D%22preserve%22%3E%0A%3Cg%3E%0A%09%3Cpath%20d%3D%22M444.1%2C29.3h-17.4v14.5h17.4V29.3z%20M36.4%2C68.1l29.3-50.8V0H50.4L32.9%2C36.8L15.5%2C0H0v68.1h16.7V45.8l12.4%2C22.3H36.4z%0A%09%09%20M49.1%2C68.1h16.6V23.4L49.1%2C52.1V68.1z%20M76.6%2C68.1h45V53.8H93.3V41.6h21V27.1h-21V14.8h28.3V0.1h-45V68.1z%20M175.6%2C68.1h17.3v-68%0A%09%09h-16.5v40.3L150%2C0.1h-17.6v68h16.7V27.7L175.6%2C68.1z%20M235.8%2C14.8h15.4V0.1h-47.4v14.7H219v53.2h16.8V14.8z%20M290.3%2C45.9h-17.1%0A%09%09l7.5-15.6h2L290.3%2C45.9z%20M298.7%2C68.1h18l-32.2-68h-5.7l-32%2C68h18l3.3-7.1h27.1L298.7%2C68.1z%20M325.2%2C68.1h46.2V53.8h-29.6V0.1h-16.7%0A%09%09V68.1z%20M423.7%2C14.8h27.2V0.1H407v68h16.7V14.8z%20M462%2C68.1h46.2V53.8h-29.6V0.1H462V68.1z%20M564.8%2C34.1c0%2C10.7-7.2%2C19.2-18.5%2C19.2%0A%09%09c-11.4%2C0-18.5-8.5-18.5-19.2s7.1-19.2%2C18.5-19.2C557.6%2C14.9%2C564.8%2C23.4%2C564.8%2C34.1%20M580.6%2C34.1c0-19-14.2-34-34.3-34%0A%09%09c-20.2%2C0-34.3%2C15-34.3%2C34c0%2C19%2C14.1%2C34%2C34.3%2C34C566.4%2C68.1%2C580.6%2C53.1%2C580.6%2C34.1%20M604.8%2C20.5c0-4.1%2C3.3-6.2%2C6.7-6.2%0A%09%09c4.4%2C0%2C6.6%2C3%2C6.6%2C6.6h14.7C631.8%2C9.1%2C625.1%2C0.1%2C611%2C0.1c-12%2C0-21.7%2C9.3-21.7%2C20.6c0%2C10.9%2C5.9%2C15.9%2C16.7%2C19.8%0A%09%09c5.2%2C1.8%2C11.5%2C3.2%2C11.5%2C8c0%2C3.3-2.4%2C5.5-6.4%2C5.5c-3.6%2C0-6.6-3-6.6-6.7h-15.2c0%2C11.5%2C7.9%2C20.8%2C21.8%2C20.8c12%2C0%2C21.6-9.3%2C21.6-20.6%0A%09%09c0-10-5.3-16.4-16.7-19.8C610.6%2C26.1%2C604.8%2C25.3%2C604.8%2C20.5%20M670%2C20.9h14.7C683.8%2C9.1%2C677.1%2C0.1%2C663%2C0.1c-12%2C0-21.7%2C9.3-21.7%2C20.6%0A%09%09c0%2C10.9%2C5.9%2C15.9%2C16.7%2C19.8c5.2%2C1.8%2C11.5%2C3.2%2C11.5%2C8c0%2C3.3-2.4%2C5.5-6.4%2C5.5c-3.6%2C0-6.6-3-6.6-6.7h-15.2c0%2C11.5%2C7.9%2C20.8%2C21.8%2C20.8%0A%09%09c12%2C0%2C21.6-9.3%2C21.6-20.6c0-10-5.3-16.4-16.7-19.8c-5.4-1.6-11.3-2.4-11.3-7.2c0-4.1%2C3.3-6.2%2C6.7-6.2C667.7%2C14.4%2C670%2C17.3%2C670%2C20.9%0A%09%09%22%2F%3E%0A%3C%2Fg%3E%0A%3C%2Fsvg%3E%0A)