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Look carefully the picture a...

Look carefully the picture and guess the movie title.

Correct answers: 101

The first user who solved this task is Roxana zavari.

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Demetri Martin: Exit Only

I saw a sign on this door; it said, Exit Only. So, I entered it and went up to the guy working there, and I was like, I have some good news. You have severely underestimated this door over here by, like, 100%, man.

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Flotation process patent

In 1898, English brothers Alexander and Francis El applied for a British patent (No. 21,948) for their flotation process to separate valuable ore, such as copper, from the gangue (worthless rock) with which it is associated when mined. It was the first practical equipment to extract metals from low-content ore. Pulverized ore is mixed with water and brought into contact with thick oil. The oil entraps the metallic constituents, which are afterwards separated, and gangue passed away with the water. Today, flotation methods remain vital in the mining industry, processing millions of tons of ores each year.

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