Describe 4 major innovations ideas or inventions in modern science?

We currently use laptops all the time, tablets, notebooks, smarthphes allow us to be connected anywhere. But the first laptop was created in 1981 and named Osborne 1. The possibility of carrying a folding computer that would be made into a briefcase meant that in a few months ten thousand units were sold. The Osborne 1 monitor measured five inches and weighed an average of twelve pounds, but it was still great for use on the lap, and what made it even harder to use was the need for it to be plugged in all the time. From 1981 onwards the notebooks were being perfected and the popularization of these devices would happen between the years 90 and 2000.

Nowadays the use of the cell phone has become a world fever, its rapid improvement over the years has made this device perform several functions and become indispensable for most people. The first handset was developed by Ericsson in 1956, but transporting it was not so easy, the first cell phones weighed on average forty kilos and the high cost in its production made it difficult to popularize. Already in 1973 Motorola launches a more affordable device weighing about a pound and measuring twenty-five centimeters in length and seven in width, the first mobile call was made in New York City.

The invention of television was not a very fast process, the television tube was created in 1923 by Vladimir Zworykin a Russian inventor who lived in the United States. But the first transmission would occur only in 1928, the poor quality of the images resembled the TV to the radios. In 1935 the device made the first broadcasts for real, however it could only be assisted in public rooms.

With the end of World War II and decrease of the cost in the production the device became popular. The first televising images were transmitted in black and white, but already in 1954 were created the first televisions in colors.

Dr. Alexander Fleming discovered in the early 1920s that a fungus named Penicillium notatum prevented bacteria from developing. His discovery would lead to the creation of Penicillin, the first antibiotic. This invention would revolutionize the world of medicine from the 1940s when it came to be produced on a large scale for therapeutic purposes.

answer: are there any

explanation:

its main object was the establishment of "settlement houses" in poor urban areas, in which volunteer middle-class "settlement workers" would live, hoping to share knowledge and culture with, and alleviate the poverty of, their low-income neighbors.