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Text on the reverse side:The exact middle of a piano keyboard is not middle C, but is actually the space between E and F above middle C. The impres...

The exact middle of a piano keyboard is not middle C, but is actually the space between E and F above middle C. The impressively intricate instrume...

Text on the reverse side:A deep sense of well-being is established through the activity of working with plants as we consciously become aware of th...

A deep sense of well-being is established through the activity of working with plants as we consciously become aware of the cycles of nature. The s...

Text on the reverse side:Tea was popular in the seventeenth century, however, the brewing required pots and tea strainers. Small bags were created ...

Tea was popular in the seventeenth century, however, the brewing required pots and tea strainers. Small bags were created by Tom Sullivan, a tea me...

Text on the reverse side:In 2013, a toilet paper roll made from 22-carat gold went on sale by the Australian company, Toilet Paper Man, with the pr...

In 2013, a toilet paper roll made from 22-carat gold went on sale by the Australian company, Toilet Paper Man, with the price tag of £825K (US $1,3...

Text on the reverse side:The Mecklenburger Metallguss GmbH (MMG) of Germany produced the world's largest ship propeller in 2006, with a diameter of...

The Mecklenburger Metallguss GmbH (MMG) of Germany produced the world's largest ship propeller in 2006, with a diameter of 9.6 meters with a weight...

Text on the reverse side:The term shears refers to scissors longer than 6 inches long made for specific applications. Often shears have a larger ha...

The term shears refers to scissors longer than 6 inches long made for specific applications. Often shears have a larger handle on one side, or larg...

Text on the reverse side:Quill pens were used as a writing tool before other pens were invented. Made from a flight feather of a large bird, they a...

Quill pens were used as a writing tool before other pens were invented. Made from a flight feather of a large bird, they are still used in calligra...

Text on the reverse side:The Star Wars astromech droid, often referred to as R2, served several masters over his lifetime. With independence and ad...

The Star Wars astromech droid, often referred to as R2, served several masters over his lifetime. With independence and adventurous characteristics...

Text on the reverse side:In 1804, Englishman Richard Trevithick launched the first practical steam locomotive, which averaged less than 10 mph. Tod...

In 1804, Englishman Richard Trevithick launched the first practical steam locomotive, which averaged less than 10 mph. Today, high-speed rail lines...

Text on the reverse side:Paleolithic humans used flint to shave body hair, dating as far back as 30,000 BC. With the invention of metalworking, lon...

Paleolithic humans used flint to shave body hair, dating as far back as 30,000 BC. With the invention of metalworking, longer laster razors made of...

Text on the reverse side:It is estimated that a man shaves at least 20,000 times in a lifetime. The strength of a single strand of hair can reduce ...

It is estimated that a man shaves at least 20,000 times in a lifetime. The strength of a single strand of hair can reduce to half in strength when ...

Text on the reverse side:Particularly famous for the association with Sherlock Holmes, the magnifying glass is a notable icon in detective fiction....

Particularly famous for the association with Sherlock Holmes, the magnifying glass is a notable icon in detective fiction. The magnifying glass is ...

Text on the reverse side:The first record player was commercially released to the masses back in 1895. The 60s and 70s became the golden age of vin...

The first record player was commercially released to the masses back in 1895. The 60s and 70s became the golden age of vinyl. The device known as a...

Text on the reverse side:Checking the photo after snapping it on the camera is called chimping - commonly done when using a digital camera. With an...

Checking the photo after snapping it on the camera is called chimping - commonly done when using a digital camera. With analogue cameras, where chi...

Text on the reverse side: Checking the photo after snapping it on the camera is called chimping - commonly done when using a digital camera. With ...

Text on the reverse side:Surveying around 8,900 adult men, only 92 men responded that they were able tie their own bow tie - equals to about 1% of ...

Surveying around 8,900 adult men, only 92 men responded that they were able tie their own bow tie - equals to about 1% of the men surveyed. Althoug...

Text on the reverse side:The name, revolver, comes from the revolving chambers for bullets in the firearm. Although they were referred to as revolv...

The name, revolver, comes from the revolving chambers for bullets in the firearm. Although they were referred to as revolving guns, the inventor Sa...

Text on the reverse side:William Mason (1837-1913) was a pattern maker, engineer and inventor. Whilst working for Colt’s Patent Fire Arms Manufactu...

William Mason (1837-1913) was a pattern maker, engineer and inventor. Whilst working for Colt’s Patent Fire Arms Manufacturing Company, Mason produ...

Text on the reverse side:James Bond originally used a Beretta 418. When a fan of the novels who was a small arms expert pointed out that it was a l...