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Eventhough parachutes seem to have been used in China since the 1100s and that Leonardo da Vinci of Italy had invented devices similar to parachutes nowadays, worldwide skydivers state that the French inventor André-Jacques Garnerin is the one to make the first parachute. In 1797 he jumped from a balloon over Paris using a parachute and kept on making other jumps in France and also in England.

In World War I , that is between 1914 and 1918, the military began using parachutes in their missions

Even tourists will want to buy an Octopus card. Octopus cards are Hong Kong's version of London's Oyster cards, and can even be used to pay for convenience store purchases and the like. Adult Octopus cards will run you $150 including a $50 deposit, but they'll charge you $7 for returning it less than three months after you bought it. You'll also enjoy a discount on MTR trains by using it.

Guide dogs Hearing dogs Service dogs

blind, deaf, or physically disabled

Service dogs can also be trained to help people with seizure disorders or other medical problems.

Guide Dogs for the Blind provides K-9 Buddies

pets for blind and visually impaired children

pets and prepare children for future use and care of a mobility dog.

Though it sounds like a classroom assignment from Hogwarts School of Witchcraft and Wizardry, weather modification programs have been around for more than 50 years.

The problem is there are too many factors that affect the weather, making naturally occurring phenomena difficult to separate from man-made triggers.

"There was no strong scientific base for changing the weather."

Born on January 4, 1809, Coupvray, France, Braille was accidentally blinded in one eye at the age of three. Within two years, a disease in his other eye left him completely blind.

Captain Charles Barbier invented sonography, or nightwriting, a system of embossed symbols used by soldiers to communicate silently at night on the battlefield. Inspired by a lecture Barbier gave at the Institute a few years later, the fifteen-year-old Braille adapted Barbier's system to replace Haüy's awkward embossed type, which he and his classmates had been obliged to learn.

In his initial study, Braille had experimented with geometric shapes cut from leather as well as with nails and tacks hammered into boards. He finally settled on a fingertip-sized six-dot code, based on the twenty-five letters of the alphabet, which could be recognized with a single contact of one digit. By varying the number and placement of dots, he coded letters, punctuation, numbers, diphthongs, familiar words, scientific symbols, mathematical and musical notation, and capitalization. With the right hand, the reader touched individual dots and, with the left, moved on toward the next line, comprehending as smoothly and rapidly as sighted readers. Using the Braille system, students were also able to take notes and write themes by punching dots into paper with a pointed stylus which was aligned with a metal guide.