Zero

The concept of zero as a number and not merely a symbol or an empty space for separation is attributed to India, where, by the 9th century AD, practical calculations were carried out using zero, which was treated like any other number, even in case of division.

In 498 AD, Indian mathematician and astronomer Aryabhata stated that "from place to place each is ten times the preceding, which is the origin of the modern decimal-based place value notation".

Names for the number 0 in English include zero, nought or (US) naught or nil, the epic quest to invent the perfect calendar.

As the decimal zero and its new mathematics spread from India to whole world.There are different words used for the number or concept of zero depending on the context. For the simple notion of lacking, the words nothing and none are often used.Several sports have specific words for zero, such as nil in football, love in tennis and a duck in cricket.It is often called oh in the context of telephone numbers. Slang words for zero include zip, zilch, nada, scratch and even duck egg or goose egg.

The sum of zero and a negative number is negative.

The sum of zero and a positive number is positive.so with out zero there is no mathematics.The number 0 may or may not be considered a natural number, but it is a whole number and hence a rational number and a real number.

Kohinoor Diamond

Diamonds are formed at high temperature and pressure at depths of 140 to 190 kilometers (87 to 118 mi) in the Earth's mantle. Carbon-containing minerals provide the carbon source, and the growth occurs over periods from 1 billion to 3.3 billion years (25% to 75% of the age of the Earth). Diamonds are brought close to the Earth's surface through deep volcanic eruptions by a magma, which cools into igneous rocks known as kimberlites and lamproites.Diamond is less stable than graphite, but the conversion rate from diamond to graphite is negligible at standard conditions. Diamond is renowned as a material with superlative physical qualities, most of which originate from the strong covalent bonding between its atoms. In particular, diamond has the highest hardness and thermal conductivity of any bulk material. Diamond also has relatively high optical dispersion (ability to disperse light of different colors).The formation of natural diamond requires very specific conditions—exposure of carbon-bearing materials to high pressure, ranging approximately between 45 and 60 kilobars (4.5 and 6 GPa), but at a comparatively low temperature range between approximately 900 and 1,300 °C (1,650 and 2,370 °F). These conditions are met in two places on Earth; in the lithospheric mantle below relatively stable continental plates, and at the site of a meteorite strike.Diamonds are naturally lipophilic and hydrophobic, which means the diamonds' surface cannot be wet by water but can be easily wet and stuck by oil. Diamonds are mostly with typically yellow, brown or gray to colorless. Less often blue, green, black, translucent white, pink, violet, orange, purple and red color.Diamonds are extremely hard, but also brittle and can be split up by a single blow. Therefore, diamond cutting is traditionally considered as a delicate procedure requiring skills, scientific knowledge, tools and experience.

Cricketers Who Suffered Fatal Injuries while Playing

1. Phil Hughes (Australia, 25) - 2014


2. Darryn Randall (South Africa, 32) - 2013

3. Zulfiqar Bhatti (Pakistan, 22) - 2013

4. Richard Beaumont (England, 33) - 2012

5. Alcwyn Jenkins (England, 72) - 2009

6. Wasim Raja (Pakistan, 54) - 2006

7. Raman Lamba (India, 38) - 1998

Lamba, a former India international, was hit on the head while fielding during a club match in Dhaka. He went into a coma three days later, before being pronounced dead.

8. Ian Folley (England, 30) - 1993

9. Wilf Slack (England, 34) - 1989

10. Abdul Aziz (Pakistan, 18) - 1959

11. Andy Ducat (England, 56) - 1942

12. George Summers (England, 25) - 1870

Rotating Skyscraper

It’s the first building in the world that rotates, moves, and changes shape..The Dynamic Tower ., also known as Dynamic Architecture Building (Da Vinci Tower).Height 420-metre (1,378 ft), 80-floor moving skyscraper in Dubai, United Arab Emirates, designed by architect David Fisher.Similar to the Suite Vollard completed in 2001 in Brazil, Each floor will be able to rotate independently.This will result in a constantly changing shape of the tower. Each floor will rotate a maximum of 6 metres (20 ft) per minute, or one full rotation in 90 minutes.It will be the world's first prefabricated skyscraper with 40 factory-built modules for each floor.

Speciality:The entire tower will be powered from wind turbines and solar panels. Enough surplus electricity should be produced to power five other similar sized buildings in the vicinity.

The turbines will be located between each of the rotating floors.They could generate up to 1,200,000 kilowatt-hours of energy. The solar panels will be located on the roof and the top of each floor.Each of the towers have been designed with swimming pools, gardens and even lifts for cars meaning people can park outside their flats.

The Italian architect has revealed the ambitious plans to create Dynamic Towers in cities around the world with separate floors that spin 360 degrees around a concrete centre every 90 minutes. 

The first two are planned to be built in Dubai and Moscow with other cities including London, Milan, Paris, Rome, New York and Miami  on the cards too.

The 80-storey Dubai tower cost around £355million while the 70-storey Moscow tower will be developed by the Mirax Group with final costs unknown.