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The Moon alphabet is easier to learn than Braille, particularly for people who lose their sight in later life. The letters of the Moon alphabet can represent individual sounds, parts of words, whole words or numbers.

The word koala comes from Dharuk gula. Although the vowel /u/ was originally written in the Latin alphabet as "oo" (in spellings such as coola or koolah), it was changed to "oa" possibly due to an error.[3] The word is erroneously said to mean "doesn't drink"

The scientific name of the Koala's genus, Phascolarctos, is derived from Greek phaskolos "pouch" and arktos "bear". Its species name, cinereus, is Latin and means "ash-coloured"

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.

It was invented by Louis Braille (1809-1852), a French teacher of the blind. It consists of patterns of raised dots arranged in cells of up to six dots in a 3 x 2 configuration.

Each cell represents a letter, numeral or punctuation mark.

Grade 3, which is used only in personal letters, diaries, and notes. It is a kind of shorthand, with entire words shortened to a few letters.

He conceived the basic idea of an electromagnetic telegraph in 1832, and produced the first working telegraph set in 1836. This made transmission possible over any distance.

can easily converse at 20 to 30 words per minute

Morse Code can be transmitted using sound or light

Long ago, people called Pilgrims left their home in England and came across the ocean to America in a boat called the Mayflower. They built their own houses, planted seeds they had brought with them, and made friends with the Indians, who were already living in America. The Indians taught them how to plant corn and hunt and fish for animals that they could eat. In the fall, when the corn was ready, the Pilgrims picked it. It was their first harvest, and when they had finished, they had a party to celebrate and give thanks that they had enough food to last through the winter. The party, called the First Thanksgiving, was held outside, and everyone came, including the Indians. Now every year we celebrate Thanksgiving to remember the brave Pilgrims and to give thanks for all of our blessings.