Search Result For patent

The day the telephone was patented – level 1

07-03-1876

Alexander Graham Bell starts his experiments in 1873. He wants to...



The day the telephone was patented – level 2

07-03-1876

Alexander Graham Bell started his experiments in 1873. He was trying...



The day the telephone was patented – level 3

07-03-1876

Since 1873, Alexander Graham Bell was trying to find a way...



The day the most famous formula was published – level 1

27-09-1905

In 1905, Albert Einstein is a young man. He works for...



The day the most famous formula was published – level 2

27-09-1905

In 1905, Albert Einstein was a young man. He worked for...



The day the most famous formula was published – level 3

27-09-1905

In 1905, Albert Einstein was a young man working for the...



The day the cinema was created – level 1

22-03-1895

In 1891, Thomas Edison makes the first camera. The camera makes...



The day the cinema was created – level 2

22-03-1895

In 1891, Thomas Edison constructed the first version of a camera....



The day the cinema was created – level 3

22-03-1895

In 1891, Thomas Edison constructed the first version of a camera....