CAN A GLASS BALL BOUNCE HIGHER THAN A RUBBER BALL?

A glass ball bounces higher than a rubber ball of the same size, providing it does not break. A steel ball will also bounce higher than a rubber ball. Bouncing is a form of elastic collision between two objects. When you drop a ball, it will only bounce if it gets back the energy it imparted to the surface it hit. Many objects dissipate energy too readily to bounce well. 

When a rubber ball hits a surface, it compresses and deforms before returning to its original shape. Quite a lot of energy is lost in this process. Glass is rigid and does not deform much when it strikes a surface. Most of the energy of the impact returns to the glass. Steel is crystalline, especially hardened steel containing carbon, so it deforms slightly but retains a lot of the collision energy. Of course, the bouncy advantage is lost if a glass or steel ball is hurled with force because glass will break and dense steel will have enough momentum to become a weapon.

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WHO WERE THE FIRST PASSENGERS OF THE HOT AIR BALLOON?

On the 19th September 1783 Pilatre De Rozier, a scientist, launched the first hot air balloon called 'Aerostat Reveillon'. The passengers were a sheep, a duck and a rooster and the balloon stayed in the air for a grand total of 15 minutes before crashing back to the ground.

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A FRUIT THAT BIRDS SHOULD NEVER EAT!

Avocado contains a toxin called persin, a fungicidal toxin present in the avocado. It is generally harmless to humans, but when consumed by birds it is dangerous. Persin is also an oil-soluble compound, structurally similar to a fatty acid. Avocado poisoning can be deadly to birds. Persin is toxic to birds generally! Birds like; (canaries, parakeets, cockatiels and large parrots) and all other Pet Birds should never be fed avocado, as they are extremely susceptible to persin toxicity. 

Signs of persin poisoning in birds includes the following:

• Inability to perch,
• Respiratory distress,
• Fluid accumulation around the bird’s heart and lungs,
• Liver and kidney failure
• And sudden death.

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WHAT WAS INVENTED FIRST CIGARETTE LIGHTERS OR FRICTION MATCHES?

The lighter was invented in the 16th century out of nothing more than a converted flintlock pistol.  Now one can argue that a pistol is no lighter.   But if you look up the definition of “Lighter” in the dictionary, it states; “A mechanical device used in lighting fires, cigarettes, cigars, or pipes.”  So by definition, the converted pistol was indeed the first lighter. But it wasn’t until 1823 a German chemist named Johann Wolfgang Dobereiner is credited with inventing the first lighter.  It was often called the “Dobereiner’s Lamp.”  It worked by a reaction of hydrogen to platinum sponge, which gave off a large amount of heat. In 1826 John Walker from England invented the first actual match.

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WHAT IF THE REPRODUCTION RATE OF RATS GO UNCHEKED?

A pair of brown rats can produce as many as 2,000 descendants in a year if left to breed unchecked. A rat matures sexually at age three to four months. An average rat's life span is two to three years. The count of their offspring produce would be more or less depending on how many females are produced. A female rat typically births six litters a year, consisting of around 12 pups.

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WHO ARE THE FOUR KINGS IN A DECK OF CARDS?

Playing cards arrived in Europe in the late 14th century, and decks differed greatly depending on where they were produced. There were inconsistent numbers of cards and design, although all decks had suits made up of court cards (now usually called face cards) and numbered cards. Eventually, as card-playing in Europe became more widespread, the decks were mass-produced with stencils and always included 52 cards, the same number a deck includes now.

It was the French card-makers in the late 16th century who standardized the suits of spades, hearts, diamonds, and clubs and designated the four kings as David, Alexander, Charlemagne, and Caesar. But this designation ended in the late 18th century and from then on, the kings in decks of cards have represented no specific person, any more than the kings on a chessboard stand for illustrious royals of the past.

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THE TOUGHEST TONGUE TWISTER IN ENGLISH LANGUAGE.

According to The Guinness Book of World Records, the toughest tongue twister is 'The sixth sick sheik's sixth sheep's sick'. However, if researchers from the Massachusetts Institute of Technology are to be believed, 'pad kid poured curd pulled cold' is the toughest tongue twister that has ever been devised. 
Researchers say that for some reason when certain words are spoken together quickly, people seem to lose control and more often than not, the one sound seems to replace the other. For example try saying toy boat fast a few times and you will soon start pronouncing the words as 'toy boyt'! Similarly, 'top cop' seems to rapidly turns into 'cop cop!' 

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