The river was later called the "Hume River" after it was visited by European explorers Hamilton Hume and William Hovell in November 1824. Explorer Charles Sturt renamed the river in January 1830 after a British politician, Sir George Murray. In 1852, the government offered a bonus of $8,000 for the first paddlesteamer to reach Echuca. This was achieved by both William Randell and Francis Cadell.
Randell built a steamboat the "Mary Ann", named after his mother, to start trading in 1853. Soon it was racing Captain Francis Cadell's steamer and river trading began. This provided many new jobs and started new settlements and industries along the entire length of the river Murray system. G.B. Johnston sailed a steam boat as far as Albury in 1855. The river was very important for carrying people and goods until the railways took over. By 1900 the river trade was just about over.
Buffer solution
A buffer solution is chemical solution which resists change to its pH or acidity.
It is a solution in water of a mixture of a weak acid or base and its salt. The pH of the solution changes very little when a small amount of strong acid or base is added to it. Buffer solutions are used as a means of keeping pH at a nearly constant value in a wide variety of chemical applications. Many life forms have a relatively small pH range; an example of a buffer solution is blood.
Buffer solutions may be of two types: acidic and basic.
eg. CH3COOH+CH3COONa
eg. NH4OH+NH4Cl
If you add acid to the solution, the concentration of H+ ions will increase; to keep equilibrium a small number of ions will be combined (forming salt and reducing the concentration of H+ ion in the solution). If you add base the concentration of H+ ion will reduce (by consumption or combining) and so a small amount of salt will break into ions and maintain the pH.
Buffer index is the number of moles of acid or base added to 1 litre of buffer solution to change its ph by 1 unit
Hamilton Hume
Hamilton Hume (19 June 1797 – 19 April 1873) was the first Australian born explorer.
Hume was born near Parramatta, a town close to (and now a part of) Sydney. His father was Andrew Hamilton Hume, who came to Australia in 1790 in charge of convicts (prisoners) and later became a farmer.
At 17 he began exploring the Sydney area, and went as far as Berrima. On these journeys Hume learned how to live safely in the bush (the area far from the cities). In March 1817 he went on a journey with James Meehan, the deputy surveyor-general, and came to Lake Bathurst and the Goulburn Plains. Later he went with John Oxley and Meehan to Jervis Bay, and in 1822 was with a group which sailed in a boat down the east coast of New South Wales looking for rivers.
On October 2, 1824 Hume and William Hovell left Sydney to try and get to Spencer's Gulf in South Australia. The explorers took six servants, five bullocks, three horses and two carts. Much of the journey was over rough mountain country with many rivers to get across. On November 16 they found a ""fine river"" which they called the Hume. This river was later renamed the Murray River. They made a boat to get across the river near the present site of Albury. After a journey of 11 weeks, on December 16, 1824 they reached Corio Bay, Victoria near the present site of Geelong. Hovell made an error in his navigation, and they believed that they were on the shore of Western Port Bay. The journey back was made on path more to the west, the land was more level, and they were back only 5 weeks later. They ran out of food before the end of the journey, and the whole group was very, very tired.
Hume and Hovell received grants of of land as a reward. Hume had to sell his land to pay for the cost of the journey. This journey discovered the overland path (now called the Hume Highway) between Sydney and Melbourne.
In November 1828, Hume journeyed with Charles Sturt into western New South Wales, where they explored the Darling River. Hume was able to talk with some aborigines who agreed to help them on the journey. There was a long drought (no rain) and it was very hard to find water. It was only Hume’s good bushmanship (knowledge of the land) saved the group.
As a reward Governor Ralph Darling gave Hume of land at Yass Plains where he lived with his wife, Elizabeth Dight, and his nephew (son of his brother). In December 1853 a speech Hovell made at Geelong led to an argument between the men. This argument was over who had been the leader of the expedition, and had Hume thought Corio Bay was Westernport Bay. There were many letters and books written about the argument. Governor Ralph Darling had always said Hume was the leader, and Hume's own letters at the time show he agreed with Hovell's navigation mistake.
Hume later worked as a magistrate until his death at Yass on 19 April 1873. He is buried in the Yass Cemetery.
Azad Kashmir
The State of Azad Jammu and Kashmir, () also called Azad Kashmir. In terms of land area it is bigger than Trinidad and Tobago but smaller than Brunei.
Pakistani region of Gilgit Baltistan is to the north, while the Indian Administered disputed territory of Occupied Jammu and Kashmir (IOK) is to the east which is the region of dispute between Pakistan and Held by Indian military armed occupational forces. Pakistani province Khyber Pakhtunkhwa is west of it, and the Pakistani province of Punjab is south of it.
The capital city of Azad Kashmir is Muzaffarabad. Azad Jammu and Kashmir has an area of 5,134 mi² (13,297 km²). The inhabitants of this region are Kashmiri citizens of ethnic Pahari origin. About 4 million people live there.
Azad Kashmir is a self-governing state under Pakistan. It has its own elected president, prime minister, legislature, high court, emblem and official flag. However, the highest body in the state is the Azad Jammu and Kashmir Council. This council has six members from the government of Azad Kashmir (including the President and the Prime Minister of Azad Kashmir) and five members from the government of Pakistan, including the President of Pakistan who is the chairman/chief executive of the council. Azad Kashmir is administratively divided into three divisions which, in turn, are divided into ten districts.
The Government of Azad Kashmir and Jammu is based in Muzaffarabad, the interim state capital of the Azad Kashmir disputed territory.
The state is divided into three divisions. The divisions are further divided into districts. There are 10 districts.
The northern part of Azad Jammu and Kashmir encompasses the lower area of the Himalayas, including Jamgarh Peak (). However, Hari Parbat peak in Neelum Valley is the highest peak in the state. Fertile, green, mountainous valleys are characteristic of Azad Kashmir's geography, making it one of the most beautiful regions of the subcontinent.
The region receives rainfall in both the winter and the summer. Muzaffarabad and Pattan are among the wettest areas of Pakistan. Throughout most of the region, the average rainfall exceeds 1400 mm, with the highest average rainfall occurring near Muzaffarabad (around 1800 mm). During the summer season, monsoon floods of the rivers Jhelum and Leepa are common due to extreme rains and snow melting.
Nuclear Non-Proliferation Treaty
The Nuclear Non-Proliferation Treaty (or NNPT) is a treaty that was made to stop nuclear weapons from being built. It was written in 1968, entered into force in 1970, and 190 countries have signed it since then. Only four nations have not signed it: India, Israel, Pakistan South Sudan. North Korea withdrew in 2003.