Top 10 Accidental Inventions.......

#10 Penicillin

Penicillin is indeed one of the most fortunate accidents of the 20th century. This widely used anti-biotic was discovered in 1928 by Alexander Fleming, a Scottish scientist.One day Fleming left his working station, without cleaning it up, and went on vacation. On his return he noticed a strange blue-green mold around some of his bacterial clusters (Staphylococcus). This blue green mold was Penicillin

#9 Microwave

Microwave radiations were discovered by Percy L. Spencer in 1945. 
He was walking past a radiation tube and noticed that the chocolate bar in his pocket melted. Then he placed a small bowl of pop corn in front of the tube and it quickly popped.  his discovery of the microwave radiation led to the invention of the microwave oven.

# 8 Popsicle

In 1905, Frank Epperson was trying to make the Soda Pop - a popular
drink at that time. He mixed the popular drink with soda water and accidentally left the mixture on his porch all night. The very next morning he found the frozen Soda Pop sitting on a stick, which he had used to stir the mixture.Then 18 years later, he started selling these accidentally formed Popsicle, then known as Eppsicle.

# 7 Ice Cream Cone

Before 1904, ice creams were only served in dishes. It was in 1904, when during the World Fair ice creams were sold in such a large quantity that the place ran out of dishes. To keep the business going, vendors started selling ice creams in thin wafers. Later cones were formed with these wafers.

#6 Potato Chips

Potato chips were invented in 1853 by George Crum. Crum experimented with wafer thin slices of potato when a customer repeatedly refused to eat his fries, because they were too thick and soggy.

                                                          

#5 Chocolate Chip Cookies

According to Nestle, one day Mrs. Wakefield was making chocolate 
cookies when she ran out of baker's chocolate. In stead of rushing to get the baker's chocolate, she put broken pieces of semi-sweet chocolate in the batter, hoping that they will melt. But the pieces did not, and chocolate chip cookies were born. Later Mrs. Wakefield sold the recipe to Nestle.

#4 Champagne

Champagne was discovered in the 17th century when Benedictine Monk tried for at least two years to come up with a wine with bubbles. His experiments brought in one of the most unique drinks- Champagne, without which most of our celebrations are incomplete.
                                                 
                                                        

#3 Superglue

Dr. Harry Coover accidently created a substance known as 'cyanoacrylate'. According to him it was a miserable failure. As at that time he was working to make a precision gun sight.
Later on, he found that the cyanoacrylate polymerizes when comes in contact with moisture and causes one of the strongest chemical bonds ever. So, it was the discovery of superglue.

#2 Artificial Sweetener

For most chemists not washing their hands before eating something, may prove to be lethal. However, this unhygienic act led Constantin Fahlberg to notice a sweet flavor.

Artificial sweetener was invented in 1879 because Constantin Fahlberg forgot to wash his hands before eating. He was trying to come up with new and interesting uses for coal tar when he took a break from his work, and went home. While eating the rolls he noticed something sweet. Surprised with the new taste he asked his wife if she had done anything new to the rolls. But she had not.

It was then that Constantin Fahlberg realized that the sweet taste must have been coming from his hands. Fahlberg returned to his lab the very next day and started working to find out the sweet spot.

He consulted with his mentor, Ira Remsen, who was also the in charge of the lab. And later, the duo published a research paper which explained the newly discovered sweet substance Saccharine.

And the......

#1 X–Rays

In 1895, Wilhelm Roentgen, a German physicist, was experimenting with cathode rays. During his experiment, he noticed a piece of fluorescent cardboard which lighted the whole room. He placed a thick screen between his cathode rays and the radiated cardboard. And the physicist was amazed to see that brilliant images can be produced with this incredible radiation and took an X-Ray photograph of her wife's hand.
Edison said that "Everything comes to him who hustles while he waits" but progress is not always deliberate. Sometimes great inventions are discovered not by choice - but by chance.