Microwave
The famous explorer Percy Spencer, received more than 120 patents for inventions, an employee of one of the largest companies in the world's military-industrial complex Raytheon, accidentally became the creator of the microwave oven. In 1945, shortly before the end of World War II, he conducted research, aims to improve the quality of radar.
At the time of the experience of Spencer discovered that chocolate bar lying on the table in front of the radiator worked melted. After a series of experiments established the first microwave oven, which weighed about 400 kg. It is intended to be used in restaurants, planes and ships - where needed to quickly heat up food.

Adhesive paper for notes (Post-it Notes)
Adhesive paper appeared as a result of a failed experiment to enhance the resistance of the adhesive. In 1968, the employee research lab trying to improve the quality of 3M adhesive tape (Scotch). He received a solid glue, which is not absorbed in the glued surface and was completely useless for the production of scotch. The researcher did not know how to use a new sort of glue. Four years later, his colleague, who in his spare time he sang in the choir, was irritated by the fact that the bookmark in the book of Psalms, all the time falling out. Then he thought of the glue, which could build on paper tabs without damaging the pages of the book. In 1980, Post-it Notes were first issued for sale.

  Supermarket trolley
Merchant Sylvan Goldman Sylvan Goldman invented the first shopping cart to 1936. Goldman was the owner of a large grocery store in Oklahoma City and noticed that buyers refuse to buy certain products because they are hard to bear. The discovery was accidental: Goldman drew attention, as one client to put the heavy bag for a toy car, which her son was pushing on a string.
The dealer at first attached to the usual small cart wheels, and then enlisted the help of mechanics and created a prototype of the modern truck. Mass production of the device was launched in 1947. The invention allowed the truck to create a new kind of store - a supermarket.

Cookies with chocolate chips
One of the most popular types of cookies in the U.S. - biscuits with chocolate chocolate-chip cookies. It was invented in 1930, when the mistress of a small hotel Ruth Wakefield Ruth Wakefield decided to bake cookies oily. A woman smashed a chocolate bar and chocolate chips mixed with the dough, hoping that the chocolate will melt and give the test brown color and chocolate flavor. However, Wakefield was betrayed by his ignorance of the laws of physics, and she got out of the oven cookies with chocolate chips.

Rubber
In 1844, inventor Charles Gudiyr Charles Goodyear accidentally discovered a recipe for manufacturing rubber, which does not soften in the heat and does not become brittle in the cold. The new technology is called vulcanization. Gudiyr, many years of unsuccessfully trying to improve the quality of rubber, at that time is extremely moody and uncomfortable material, once accidentally heated a mixture of rubber and sulfur on the kitchen stove. Opening the process of vulcanization of rubber was the impetus for the development of the electrical industry, because rubber is an excellent insulating material. Gudiyra invention made possible the emergence of the modern car.

Pacemaker
The device that saves the lives of millions of people suffering from heart disease, was invented by accident. In 1941, engineer John Hopps John Hopps commissioned by the Navy conducted research in the field of hypothermia. Before him was tasked to find a way to warm up as quickly as possible man for a long time visitor in the cold or in cold water. Hopps was trying to use for heating the high-frequency radio emission and accidentally discovered that the heart stops beating as a result of hypothermia, could again be "running" if it is to stimulate electrical impulses. In 1950, based on the opening Hoppsa, was created the first pacemaker. He was big and awkward, its use sometimes led to the appearance of burns on the body of the patient.

Medic Wilson Greytbetch Wilson Greatbatch made a second chance otrkytie. He worked on creating a device that was supposed to record the heart rhythm. One day he accidentally put the wrong resistor into the device and noticed that the electrical circuit having oscillation, resembling the rhythm of the human heart. Two years later Greytbatch created the first implantable pacemaker, artificial feeding impulses to stimulate the heart.

Antibiotics
In 1928 scientist Alexander Fleming noticed FlemingAlexander that penicillin mold fungus has infected one of his samples with pathogenic bacteria Staphylococcus left an open window. Fleming studied the sample under a microscope and noticed that the mold has destroyed the bacteria. The importance of Fleming's discovery became clear only in 1940, when the world started mass study of a new type of drugs-antibiotics. Today, antibiotics are very widely used in medicine, they make up 15% of all drugs sold in the world.

Garbage bag
Harry Wasylyk Harry Wasylyk in 1950 invented the first garbage bag. Wasylyk was an inventor and engineer, and one day approached by the municipality, which set the task: to ensure that waste does not spill during loading musorosborochnyh machines. Wasylyk long time pondering over something of a vacuum cleaner, but the decision came suddenly. One of his friends or home threw the phrase: "I need a bag for rubbish!". Vasylyuk realized that for the operations of garbage should use disposable bags and offered to make them out of polyethylene. The first plastic garbage bags began to use the hospital of the city of Winnipeg. The first garbage bags, designed for individuals who appeared in the 1960's. Now, one of the most important problems to be addressed to mankind, is the disposal of garbage.