On April 9, 1806, English engineer and entrepreneur Isambard Kingdom Brunel was born, whose designs revolutionised public transport and modern engineering. He developed and constructed dockyards, the Great Western Railway, a series of steamships including the first propeller-driven transatlantic steamship and numerous important bridges and tunnels.
I first heard of Isambard Kubgdom Brunel, when I saw this great photograph, where he was posing in front of these huge chains with his top hat and the cigar. And I was immediately curious to learn more about this fellow. Actually these chains belong to one of his large scale projects, the Great Eastern, the largest ship ever built by that time, for the purpose of installing a telegraph cable across the Atlantic connecting Europe and America. So, this guy really must have been a visionary with skill in engineering and also of great ambition…
Isambard Kingdom Brunel was born on April 9, 1806 as son of French civil engineer Sir Marc Isambard Brunel and Sophia Kingdom Brunel in Portsmouth, where his father was working on block-making machinery. Despite the family’s constant money worries he had a happy childhood. After the family moved to London, he was taught drawing and observational techniques by his father from the age of four and Brunel had learned Euclidean geometry by eight. During this time he also learned fluent French – his father was a Frenchman by birth – and the basic principles of engineering. At the age of 14, the Brunel was enrolled at the College of Caen in Normandy and later at the Lycée Henri-Quatre in Paris, where he completed his studies in 1822. As a foreigner, the renowned engineering school École Polytechnique refused to take him as a candidate. Therefore Brunel subsequently studied under the prominent master clockmaker and horologist Abraham-Louis Breguet and returned to England in late 1822.
In England, Brunel started to work for his father an assistant engineer and his first notable achievement was the part he played with his father in planning the Thames Tunnel, a tunnel under London’s River Thames from Rotherhithe to Wapping, completed in 1843. In 1831, Brunel’s designs won the competition for the Clifton Suspension Bridge in Bristol across the River Avon, for what he is perhaps best remembered. Spanning over 210 meters and 61 meters above the River Avon, it had the longest span of any bridge in the world at the time of construction. It was not completed until 1864, five years after Brunel’s death.
In 1833, Brunel was appointed chief engineer for the construction of a network of tunnels, bridges and viaducts for the Great Western Railway, running from London to Bristol. It was Brunel’s vision that passengers would be able to purchase one ticket at London Paddington and travel from London to New York, changing from the Great Western Railway to the Great Western steamship at the terminus in Neyland, South Wales. To achieve this, the Great Western Steamship Company was formed, though it was widely disputed whether it would be commercially viable for a ship powered purely by steam to make such long journeys across the Atlantic. It was generally thought that a ship would not be able to carry enough fuel for the trip and have sufficient additional room for a commercial cargo. Brunel formulated the theory that the amount a ship could carry increased as the cube of its dimensions, whereas the amount of resistance a ship experienced from the water as it traveled only increased by a square of its dimensions. This would mean that moving a larger ship would take proportionately less fuel than a smaller ship. To test this theory, the Great Western Steamship Company appointed him with designing its first ship, the Great Western.
When it was built, the Great Western was the longest ship in the world at 72 meters length. The ship was constructed mainly from wood, but Brunel added bolts and iron diagonal reinforcements to maintain the keel’s strength. At its first voyage across the Atlantic, the Great Western took 15 days and five hours, and the ship arrived at her destination with a third of its coal still remaining, demonstrating that Brunel’s calculations were correct. And it should not remain the last ship Brunel designed. In 1852 Brunel turned to a new ship project, even larger than all of her predecessors, intended for voyages to India and Australia. The Great Eastern (originally dubbed Leviathan) was cutting-edge technology for her time: almost 210 meters long, fitted out with the most luxurious appointments, and capable of carrying over 4,000 passengers, designed to cruise non-stop from London to Sydney and back. Actually, the Great Eastern should remain the largest ship built until the start of the 20th century. Moreover, the Great Eastern played a significant role in laying the first lasting transatlantic telegraph cable, which enabled telecommunication between Europe and North America, but this is already another story…
References and Further Reading:
-  The IKBrunel Portal
-  The Brunel Archive at the University of Bristol
-  Transatlantic Telecommunication Via Voice, SciHi Blog, September 25, 2012
-  The Clifton Suspension Bridge, SciHi Blog, December 8, 2013
-  The Tower Subway – the World’s First Tube Railway, SciHi Blog, August 2, 2015
-  Isambad Kingom Brunel at Wikidata