One of the inventions that entirely have changed our life is of course penicilin.Everybody knows the story – or at least, should – the brilliant yet notoriously absent-minded biologist Sir Alexander Fleming was researching a strain of bacteria called staphylococci. Upon returning from holiday one time in 1928, he noticed that one of the glass culture dishes he had accidentally left out had become contaminated with a fungus, and so threw it away. It wasn’t until later that he noticed that the staphylococcus bacteria seemed unable to grow in the area surrounding the fungal mould.Fleming didn’t even hold out much hope for his discovery: it wasn’t given much attention when he published his findings the following year, it was difficult to cultivate, and it was s0low-acting – it wasn’t until 1945 after further research by several other scientists that penicillin was able to be produced on an industrial scale, changing the way doctors treated bacterial infections forever.
second invention is The Microwave In 1945 Percy Lebaron Spencer, an American engineer and inventor, was busy working on manufacturing magnetrons, the devices used to produce the microwave radio signals that were integral to early radar use. Radar was an incredibly important innovation during the time of war, but microwave cooking was a purely accidental discovery.
While standing by a functioning magnetron, Spencer noticed that the chocolate bar in his pocket had melted. His keen mind soon figured out that it was the microwaves that had caused it, and later experimented with popcorn kernels and eventually, an egg, which (as we all could have told him from mischievous childhood ‘experiments’), exploded. The first microwave oven weighed about 750lbs and was about the size of a fridge.
Last but not least is of course Potato chips In 1853, in a restaurant in Saratoga, New York, a particularly fussy diner (railway magnate Cornelius Vanderbilt) repeatedly refused to eat the fries he had been served with his meal, complaining that they were too thick and too soggy. After he had sent back several plates of increasingly thinly-cut fries, the chef George Crum decided to get his own back by frying wafer-thin slices of potato in grease and sending them out.
Vanderbilt initially protested that the chef’s latest efforts were too thin to be picked up with a fork, but upon trying a few, the chips were an instant hit, and soon everybody in the restaurant wanted a serving. This led to the new recipe appearing on the menu as “Saratoga Chips”, before later being sold all over the world.
proszę o pomoc w zbiciu tego w essey i uproszczenie słownictwa. a także skrocenie. :)
i jakies sum up trzeba wymyślec...