# Who is the true inventor of the telephone?

Alexander Graham Bell

A.

### What did Elisha Gray invent?

Telautograph

#### Who patented the lightbulb?

Thomas Edison#### Why do we say hello when we answer the phone?

The Oxford English Dictionary says the first published use of "**hello**" goes back only to 1827. The dictionary says it was Thomas Edison who put**hello**into common usage. He urged the people who used his**phone**to**say**"**hello**" when answering. His rival, Alexander Graham Bell, thought the better word was "ahoy."#### Who invented the math?

Numeracy pre-dated writing and numeral systems have been many and diverse, with the first known written numerals created by Egyptians in Middle Kingdom texts such as the**Rhind**Mathematical Papyrus. Between 600 and 300 BC the Ancient Greeks began a systematic study of mathematics in its own right with Greek mathematics.

B.

### How did Elisha Gray die?

Heart attack

#### What is Ramanujan number 1729?

The smallest nontrivial taxicab**number**, i.e., the smallest**number**representable in two ways as a sum of two cubes. It is given by. The**number**derives its name from the following story G. H. Hardy told about**Ramanujan**. "Once, in the taxi from London, Hardy noticed its**number**,**1729**.#### What is special about number 1729?

Ramanujan replied that**1729**was not a boring**number**at all: it was a very**interesting**one. He explained that it was the smallest**number**that could be expressed by the sum of two cubes in two different ways. This story is very famous among mathematicians.**1729**is sometimes called the “Hardy-Ramanujan**number**”.#### Is the number 8 lucky?

No.**8**has long been regarded as the luckiest**number**in Chinese culture. With pronunciation of 'Ba' in Chinese, no.**8**sounds similar to the word 'Fa', which means to make a fortune. It contains meanings of prosperity, success and high social status too, so all business men favor it very much.

Updated: 24th September 2018