The technological developments of the 1800s In the 1870s Alexander Graham Bell invented the first primitive telephone using an electric circuit and patented it in 1876. In 1895 Gugliemo Marconi made the first radio wave sending and receiving devices from the basis of research done by J. C. Maxwell and H. Herz. It proved especially useful in naval communication. Because industry developed greatly in the 1800s, it needed new power sources. In 1970s electricity was developed. Michael …showed first 75 words of 1346 total…

…showed last 75 words of 1346 total…still used in its almost original form as the scientific explanation of the development of life on earth. The discovery of genes was a starting point to all gene-research that has now led the modern gene-engineering and the modern knowledge of our building blocks. The development of vaccines saved very many lives and prevented the world from many fatal epidemics. It is, however, interesting to note that inoculation was first developed in India 1300 years earlier.