The modern mirror was invented in 1835 by German chemist Justus von Liebig. However, people have been using various polished stones and metals as mirrors for at least 8,000 years. More »

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To antique a mirror, remove the paint from the back of the mirror, treat it with muriatic acid and paint it with an antique gold spray paint. This eliminates the original silver finish and introduces a murky gold appeara... More »

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Manufacturers make mirrors by coating a thin layer of metal onto glass. Once the coating dries, the manufacturer places a protective coating over it to prevent scratches or the wearing away of the coating. On most househ... More »

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In 1897, the pencil sharpener was invented by John Lee Love. He was issued a patent for it on Nov. 23, 1897. That style of pencil sharpener is still in use today in schools and offices around the world, according to Abou... More »

Several products and procedures were invented in 1974. One example is the Post-It Note, which was created by American Arthur Fry. Since their invention, Post-It Notes have been sold in over 100 countries across the world... More »

The biggest inventions of 1994 were the CMOS image sensor and the first PlayStation games console. Other major inventions were the quantum cascade laser, the HIV protease inhibitor and the Segway. More »

An English chemist, named Joseph Priestly, was the first to artificially produce carbonated water in 1767. John Mervin Nooth improved upon Priestly's process around the same time. The invention of soda is attributed to t... More »

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