Braille

The letter A in braille uses a single dot in the upper left corner of the braille cell. All other braille letters use 2 or more dots.

In 1824.

There are several Braille signs used in mathematics, commonly known as Nemeth Braille, proposed by Dr. Abraham Nemeth in 1952. Blind from birth, but Professor Emeritus of Mathematics at the University of Detroit, US, he proposed a system which has gained universal acceptance in the world since its creation.

The following answer uses the numbers 1 to 6 to make transcription easier. The numbers 1, 2, and 3 represent the dots top left, middle left, and bottom left respectively, while the numbers 4, 5, and 6 represent the dots top right, middle right, and bottom right respectively.

Numbers:

The digits 0 - 9 are prefixed with a digit indicator, 3,4,5,6 - but are otherwise represented in the same way as the letter J (zero is represented with the same symbol as the letter J, prefixed by a number indicator), and the letters A to I (once again prefixed by a number indicator).

The digits are as follows:
0 - 2,4,5
1 - 1
2 - 1,2
3 - 1,4
4 - 1,4,5
5 - 1,5
6 - 1,2,4
7 - 1,2,4,5
8 - 1,2,5
9 - 2,4

For the numbers from 10 to 99, two symbols follow the number indicator, simply representative of which digits compose the numbers.

Similarly for three-digit numbers, four-digit numbers, for any number of digits you care to name.

Operator signs:

The five basic operator signs are represented by the following:
Plus - 3,4,6
Minus - 3,6
Multiplication - 4 1,6 (two different symbols)
Dot multiplier (•) - 1,6
Divide - 4,6 3,4 (two different symbols)
Equals - 4,6 1,3 (two different symbols)

Decimal point - 4,6
Square root sign - 3,4,5
Index of radical (that is, representing n for the nth root of x): 1,2,6. (This is then succeeded by the braille digit representing the nth root, rather than preceding it, like in conventional notation).

Inner radical indicator: 4,6
Second inner radical indicator: 4,6 4,6 (two different symbols)
End of first radical indicator: 4,6 1,2,4,5,6 (two different symbols)
End of second radical indicator: 4,6 4,6 1,2,4,5,6 (three different symbols)
Not: 3,4

Therefore: Is not equal to will be represented by the "NOT" symbol followed by the "EQUALS symbol", as above.

Long division: 1,3,5
Factorial: 1,2,3,4,6

Brackets

Opening round bracket: 1,2,3 5,6
Closing round bracket: 2,3,4,5,6
Opening square bracket: 4 1,2,3,5,6 (two symbols)
Closing square bracket: 4 2,3,4,5,6 (two symbols)
Opening brace bracket { : 4,6 1,2,3,5,6 (two symbols)
Closing brace bracket } : 4,6 2,3,4,5,6 (two symbols)

Therefore sign: 6, 1,6 (two symbols)
Ratio symbol (colon): 5 2 (two symbols)
Infinity: 6, 1,2,3,4,5,6 (two symbols)
Degree (angles): 4,6 1,6 (two symbols)
Percentage sign: 4, 3,5,6 (two symbols)

Superscript indicator: 4,5 (appears before indices and so on)
Subscript indicator: 5,6 (used for position in a vector/set)

Signs of comparison:

Greater than: 4,6 2 (two different symbols)
Less than: 2 1,3 (two different symbols)
Greater than or equal to: 4,6 2 1,5,6 (three different symbols)
Less than or equal to: 5 1,3 1,5,6 (three different symbols)
Is not equal to: 3,4 4,6 1,3 (three different symbols)
Is approximately equal to: 4 1,5,6 4 1,5,6 (four different symbols)
Plus or minus: 3,4,6 3,6 (two different symbols)
Minus or plus: 3,6 3,4,6 (two different symbols)

This is a list of the most commonly used symbols. If there are any others that you wish to know, please say so on the talk page, which I am keeping an eye on.

To spell the name Jake in braille, you would use a capital sign, and then spell the name out entirely. You do not use any contractions in this case.

One raised dot equates to the letter "A" ; see related link to additional information concerning Braille .

Braille impacted eveyone who was affected by blindness. It allowed people who would not see to be able to have a form of communication, it allowed them to go around to different places with braille on elevators etc., and it inspired many more inventions for the blind. Did you know they now have computers that push braille out? braille was actually first invented as a form of night reading, so anyone who has the patience can now read in the dark if they'd like. (lols) sorry not the best explanation but i reckon it's better than none at all :D

⠃⠗⠁⠊⠇⠇⠑

Tuberculosis in January 6, 1852.

Since Braille is written by using pricked dots, it's hard to write it on a computer with out a special keyboard. Braille uses six dots in a two by three, two column cell, so the most I can do is give you the numbers of each dot for the cell. 1 2 3 will be, going down, on the first row and 4 5 6 will be, going down, on the second row.

H-1,2,5

O-1,3,5

P-1,2,3,4

E-1,5

You could easily look up the lettering on Google or another site for what it looks like also. Hoped I helped. :)

A French Army Captain named Charles Barbier de la Serre gave him the idea when he used a special dot and dash code for the Military to use so that soldiers wouldn't get caught using a light to read a message. It was difficult for the soldiers to use and abandoned to the Royal Institution for Blind Youth where Louis Braille was. He tweaked it a bit before it became what is known as Braille today. Sadly, though, his idea wasn't used much in his lifetime when he died from tuberculosis on January 6, 1852.

It is used by blind people.

he invented it when he invented braille.

Braille

Braille are those raised dots like the ones you might see over the bathroom signs in schools... It is how blond people can read. So yeah that is their alphabet

Of course, it is whatever language you are using, just spoken. Braille is an imprinted version of the alphabet so thet blind people can feel the letters with their hands, not a language of its own.

To send messages, a blind person can use a computer with a Braille keyboard. To read messages, one would usually touch a piece of paper, plastic, wood, etc. that has Braille on it. Otherwise, you can communicate with a blind person regularly.

It's 2 dots and 1 dot on the bottom then a triangle with the point towards the right then 2 dots in the middle with 1 dot on top on the right side and 1 dot on bottom to the left. Get a better look at this website below.

When they were born, they were roundobout 9 months old. Or 0, depending on your point of view.

10 years later, they were 10. (Or 10 & 9 months).

10 years after that, they were 20/20 & 9months;

and so on and so forth...

When Louis's eye became infected, the infection spread. Louis was completely blind, only days later!

Braille invented the raised dot alphabet to give blind people the ability to read by touch.

It comes from a man named Louis Braille. He was a French teacher, writer and musician.

The first Braille Bibles were printed in the mid-19th century. Louis Braille, who invented the raised dot system for blind readers, conceived the idea of a Braille Bible and it was eventually produced in 1837.

The first Braille Bible was printed in 1834 by Louis Braille, a blind Frenchman who invented the Braille system. Braille Bibles have since become important tools for blind and visually impaired people worldwide, enabling access to religious texts through touch.

There are 256 possible combinations of dots in 8-dot braille (if you include a blank cell as a character).

1824