Category Discoveries

What important discovery did Howard Carter make in 1922?

In November 1922, after years of searching, British archaeologist Howard Carter stumbles upon a buried flight of steps while working in Egypt’s valley of the kings and unearths the entrance to the 3,000-years-old tomb of Tutankhamun. In the months that follow, thousands of priceless artefacts are recovered in one of the greatest finds in the history of archaeology.

By the Spring of 1922, British Egyptologist Howard Carter, financed by George Herbert. Earl of Carnarvon, had spent six seasons – November to April each year, avoiding the intense heat of summer- searching for a royal tomb he believed was waiting to be discovered on the west bank of the Nile, in the famed Valley of the Kings. With little to show for his efforts, it was agreed that the quest would be abandoned after one final, short dig of two months only, to start in November of that year.

What Carter uncovered is now regarded as one of the greatest finds in the history of archaeology: a complete set of royal coffins from the pharaonic New Kingdom era, lavishly wrought and in a startling state of preservation, with, at their centre, the mummified remains of a teenage king beneath a gold and blue “death mask”, that would eventually be seen by millions in exhibitions around the world and which would come to represent the magnificence of Ancient Egypt.

It was on November 1, 1922, that Carter began clearing a row of ancient stone huts, formerly used by workmen and close to a much larger tomb, rubble from which was strewn around the site. Three days into the task, on November 4, a single stone step emerged-the top of a flight that had been dug down into the limestone bedrock some 3,000 years earlier to carve out a smaller-than-average burial chamber and surrounding storage rooms.

By sunset the following day, a blocked doorway at the bottom of the stairs had been reached. It was plastered over and, crucially, bore the seal of the royal necropolis. Carter sent a telegram to Lord Carnarvon telling him of his wonderful discovery in Valley a magnificent tomb with seals intact”.

It was another three weeks before a group consisting of Carter, Carnarvon, engineer Arthur Callender and Carnarvon’s daughter. Lady Evelyn Herbert, stood at a second doorway at the end of a corridor, cleared of debris, while Carter chiselled a hole to peer by candlelight, into the royal antechamber, filled with gold and ebony artefacts.

For the next three months, Carter and his team- including photographer Harry Burton from the Metropolitan Museum in New York and the Met’s Egyptologist, Arthur Mace- continued their excavation until, in February 1923, they had reached the burial chamber itself, containing four gilded wooden shrines enclosing the sarcophagus that housed Tutankhamun’s mummified body. It would be another two years, the start of the season in October 1925, before Carter would come face to face with the now-iconic gold funerary mask, found in a solid gold coffin enclosed by two larger coffins within the sarcophagus. Carter’s cataloguing of all king Tutankhamun’s treasures would continue until 1932.

“Tutmania” spread across the globe as news of Carter’s achievement was reported. Amid the political fallout from the discovery – Egypt had been a British protectorate during World War I, but declared its independence in 1922 visitor numbers soared and the cult of “King Tut” was born. The death from a mosquito bite, of Lord Carnarvon in April 1923, fed into the popular belief in the “Mummy’s curse” – the inevitable downfall of those who disturb the pharoah’s resting place.

This autumn, Egypt will hope, once again, to attract world attention as its long-awaited replacement for its antiquities museum in Cairo’s Tahrir Square – home to the Tutankhamun treasures for many decades- opens only a mile from the Pyramids at Giza. The monumental Grand Egyptian Museum, 20 years in the construction and costing over a billion dollars, will bring together for the first time all 5,000 pieces painstakingly retrieved by Carter a century ago.

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HOW A CHOIR SINGERS IDEA LED TO THE INVENTION OF THE UBIQUITOUS POST-IT NOTES?

In 1968, an American undergraduate student named Art Fry who worked with a company called 3M, invented Post-It Notes-small pieces of paper that can be stuck to any surface, but leave no mark when they are peeled off. The company had been researching a super glue. An adhesive had been invented but its sticking power was so weak it was dismissed as a failure. Fry, who was a choir singer, used the weak glue to make flags for his hymn book. The flags could be removed when needed without damaging the paper, and reused many times.

Post-It Notes became all the rage among Fry’s colleagues, but it was not until 1980 that 3M began selling pads of notepaper with a strip of adhesive along one edge for office use. It was an instant success.

The chemist who actually invented the adhesive was Spencer Silver, Fry’s senior colleague at 3M. He did not know what to make of it until Fry accidentally discovered its utility.

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Where is the second deepest point of the ocean?

The Tonga Trench in the South Pacific Ocean is the second deepest trench on Earth, only behind the Mariana Trench in the Pacific Ocean. The Tonga’s deepest point called the Horizon Deep, is at 10,882  metres below sea level. The Tonga Trench is an 850 miles (1,375 km) long channel. Every point of the trench is not 10 km deep. The average depth is 6000 m or 20000 ft.

The Tonga Trench is situated in the southern part of the Pacific Ocean. The trench lies parallel with the eastern shore of Australia. It is can also be joined with islands of New Zealand with a straight line on a map. The Tonga Trench is followed by the Karmadec Trench in the south. These two forms the active Tonga- Karmadec subduction zone.

In the Northern Tonga Trench, the convergence between the Indo-Australian and Pacific plate is going on at a fast rate of 9 inch per year. It is too fast for a geological timescale where we have to consider millions of years?

Active tectonic activity around the Tonga trench results in frequent earth quakes around the area. The island of Tonga experience around 350 quakes per year. Often, the large earth quakes generate tsunamis.  The Tonga trench is so deep that the light of sun never reaches to it. As a result, the water inside the deepest parts becomes very cold around 1.1 degree C (34 degrees F).  Due to the abysmal depth of the place the water pressure here is extremely high. Due to the high pressure, no light and lack of oxygen, common sea animals cannot survive here. But there are some special fishes and invertebrates that thrive in this ecological niche.

Credit : All Five Oceans

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How was PARAM supercomputer discovered?

When India built its own supercomputer, PARAM, it took the world by surprise, especially the U.S. In the 1980s, India was buying supercomputers from the U.S. but it had to fight constant battles with it over license. The then George H.W. Bush administration in the U.S. denied to export Cray supercomputer to India fearing we could use it to make nuclear weapons and missiles. This forced India to develop its own supercomputer. It set up the Centre for Development of Advanced Computing (C-DAC), with Vijay Bhatkar as its director, in Pune, in March 1988, to develop a HPC system to meet high-speed computational needs in solving scientific and other developmental problems. Within three years, Indian scientists succeeded in creating a supercomputer, PARAM 8000, with a capability of one giga floating point operations a second (1 Gflops). This was 28 times more powerful than the Cray supercomputers, India was supposed to import from the U.S. Apart from taking over the home market, PARAM attracted 14 other buyers. It set the platform for a whole series of parallel computers, called the PARAM series. The success in supercomputers catapulted India to new heights in Information and Communication Technology, space science, missile development, weather forecasting, pharmaceutical research and much more.

 

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How was Crescograph discovered?

Crescograph is a highly sensitive instrument used in the detection of minute responses by living organisms to external stimuli. It was invented by Indian plant physiologist Sir Jagadish Chandra Bose in the early 20th century. Crescograph is capable of magnifying the motion of plant tissues to about 10,000 times of their actual size, Using this, J.C. Bose found many similarities between plants and other living organisms. He demonstrated that plants are also sensitive to heat, cold, light, noise and various other external stimuli. He also invented several other instruments which would help in detecting even the slightest of change in plants. Crescograph helped make a striking discovery such as quivering in injured plants, which Bose interpreted as a power of ‘feeling’ in plants.

Also a physicist, Bose pioneered the investigation of radio and microwave optics and extensively researched the properties of radio waves. A crater on the moon has been named in his honour.

 

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How was Raman Effect discovered?

On 28 February 1928, physicist C.V. Raman led an experiment on the scattering of light, when he discovered what now is called the Raman effect. When light interacts with a molecule, the light can give away a small amount of energy to the molecule. As a result of this, the light changes its colour can act as a ‘fingerprint’ for the molecule. This phenomenon is now called Raman scattering and is the result of the Raman effect. The wavelengths and intensity of scattered lights are measured using Raman spectroscopy has a wide variety of applications in biology and medicine. It is used in laboratories all over the world to identify molecules and to analyse living cells and tissues to detect diseases such as cancer. It has been used in several research projects as a means to detect explosives from a safe distance.

Sir C. V. Raman remains the only Indian to receive a Nobel Prize in science. Three Indian-born scientists, Har Gobind Khorana, Subrahmanyan Chandrasekhar and Venkatraman Ramakrishnan, won Nobel Prizes, but they had become U.S. citizens by then.

 

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