Earth Day is an annual event, celebrated on April 22, to increase awareness and appreciation of the Earth’s natural environment.It was first celebrated in 1970, and is now coordinated globally by the Earth Day Network, and celebrated in more than 192 countries each year. The name and concept of Earth Day was allegedly pioneered by John McConnell in 1969 at a UNESCO Conference in San Francisco. Earth Day was first observed in San Francisco and other cities on March 21, 1970, the first day of spring in the northern hemisphere. To mark the occasion many events are held worldwide. Earth Day is now coordinated globally by the Earth Day Network, and is celebrated in more than 175 countries every year. In 2009, the United Nations designated April 22 International Mother Earth Day.
The day was later sanctioned in a Proclamation signed by Secretary General U Thant at the United Nations where it is observed each year. About the same time a separate Earth Day was founded by United States Senator Gaylord Nelson as an environmental teach-in first held on April 22, 1970. While this April 22 Earth Day was focused on the United States, an organization launched by Denis Hayes, who was the original national coordinator in 1970, took it international in 1990 and organized events in 141 nations. Numerous communities celebrate Earth Week, an entire week of activities focused on environmental issues
In 1969 at a UNESCO Conference in San Francisco, peace activist John McConnell proposed a day to honor the Earth and the concept of peace, to first be celebrated on March 21, 1970, the first day of spring in the northern hemisphere. This day of nature’s equipoise was later sanctioned in a Proclamation written by McConnell and signed by Secretary General U Thant at the United Nations. A month later a separate Earth Day was founded by United States Senator Gaylord Nelson as an environmental teach-in first held on April 22, 1970. Nelson was later awarded the Presidential Medal of Freedom Award in recognition of his work. While this April 22 Earth Day was focused on the United States, an organization launched by Denis Hayes, who was the original national coordinator in 1970, took it international in 1990 and organized events in 141 nations. Numerous communities celebrate Earth Week, an entire week of activities focused on environmental issues
The first Earth Day family had participants and celebrants in two thousand colleges and universities, roughly ten thousand primary and secondary schools, and hundreds of communities across the United States. More importantly, it “brought 20 million Americans out into the spring sunshine for peaceful demonstrations in favor of environmental reform.” It now is observed in 192 countries, and coordinated by the nonprofit Earth Day Network, chaired by the first Earth Day 1970 organizer Denis Hayes, according to whom Earth Day is now “the largest secular holiday in the world, celebrated by more than a billion people every year.” Environmental groups have sought to make Earth Day into a day of action which changes human behavior and provokes policy changes.
Best known for creating earlt Steam Engines, Cornish Inventor and Mining Engineer Richard Trevithick Sadly died on April 22 1833 at the Bull Hotel, Dartford After spending a week in bed with pneumonia. Born13 April 1771 in Tregajorran, Cornwall. Trevithick was an engineer at a mine in 1797 who with the help of Edward Bell pioneered the use of A high pressure steam engine. His first success was On 21 February 1804 when the world’s first locomotive-hauled railway journey took place when Trevithick’s unnamed steam locomotive hauled a train along the tramway of the Pen-y-darren Ironworks, near Merthyr Tydfil in Wales. However he ran afoul of Matthew Boulton & James Watt, who held a number of Patents for steam engines. He improved boiler technology allowing the safe production of high pressure steam, able to move pistons in steam engines instead of using atmospheric pressure.
William Murdoch, who lived next door to Trevithick, demonstrated a model steam carriage to Trevithick in 1794. Both Oliver Evans in the U.S. and Arthur Woolf were also experimenting on a similar engine. However Trevithick actually made high pressure steam work, eliminating the need for a condenser, and allowing the use of a smaller cylinder, Making the engine more compact, lighter and small enough to carry its own weight with a carriage attached. Trevithick built his first stationary models of high pressure steam engines, then attached one to a road carriage. Exhaust steam was vented via a vertical chimney, thus avoiding a condenser and any possible infringements of Watt’s patent, with linear motion being converted into circular motion via a crank instead of a beam.
Trevithick built a full-size steam road locomotive in 1801 in Camborne. He named the carriage ‘Puffing Devil’ and, on Christmas Eve it successfully carried seven men from Fore Street up Camborne Hill, past Camborne Cross, to the nearby village of Beacon with his cousin and associate, Andrew Vivian, steering. This is inspired the popular Cornish folk song “Camborne Hill”. However, a steam wagon built in 1770 by Nicolas-Joseph Cugnot may have an earlier claim. During further tests, Trevithick’s locomotive was prone to break down and on one occasion the Boiler was allowed to run dry and the machine exploded. Trevithick did not consider this a serious setback, but rather operator error. In 1802 Trevithick took out a patent for his high pressure steam engine. To prove his ideas, he built a stationary engine at the Coalbrookdale Company’s works in Shropshire in 1802. The Coalbrookdale company then built a rail locomotive for him, but little is known about it, including whether or not it actually ran. To date, the only known information about it comes from a drawing preserved at the Science Museum, London, together with a letter written by Trevithick to his friend, Davies Giddy. The design incorporated a single horizontal cylinder enclosed in a return-flue boiler. A flywheel drove the wheels on one side through spur gears, and the axles were mounted directly on the boiler, with no frame. Unfortunately The Puffing Devil could not maintain sufficient steam pressure and would have been of little practical use. In 1803 he built another steam-powered road vehicle called the London Steam Carriage, which attracted much attention from the public and press when he drove it that year in London from Holborn to Paddington and back. It was uncomfortable for passengers and proved more expensive to run than a horse-drawn carriage and so the project was abandoned.
In 1802 Trevithick built one of his high pressure steam engines to drive a hammer at the Pen-y-Darren Ironworks in Merthyr Tydfil, South Wales. With the assistance of Rees Jones, an employee of the iron works and under the supervision of Samuel Homfray, the proprietor, he mounted the engine on wheels and turned it into a locomotive. In 1803 Trevithick sold the patents for his locomotives to Samuel Homfray. Homfrey was so impressed with Trevithick’s locomotive that he made a bet with another ironmaster, Richard Crawshay, for 500 guineas that Trevithick’s steam locomotive could haul 10 tons of iron along the Merthyr Tydfil Tramroad from Penydarren to Abercynon , a distance of 9.75 miles (16 km). Amid great interest from the public, on 21 February 1804 it carried 10 tons of iron, 5 wagons and 70 men the distance in 4 hours and 5 minutes, an average speed of approximately 2.4 mph (3.9 km/h). As well as Homfray, Crawshay and the passengers, other witnesses included Mr. Giddy, a respected patron of Trevithick and an ‘engineer from the Government’. The locomotive was relatively primitive comprising of a boiler with a single return flue mounted on a four wheel frame. At one end, a single cylinder with very long stroke was mounted partly in the boiler, and a piston rod crosshead ran out along a slidebar, an arrangement that looked like a giant trombone. As there was only one cylinder, this was coupled to a large flywheel mounted on one side. The rotational inertia of the flywheel would even out the movement that was transmitted to a central cog-wheel that was, in turn connected to the driving wheels. It used a high pressure cylinder without a condenser, the exhaust steam was sent up the chimney assisting the draught through the fire, increasing efficiency even more.
The proprietor of the Wylam colliery near Newcastle, heard of the success in Wales and wrote to Trevithick asking for locomotive designs. These were sent to John Whitfield at Gateshead, Trevithick’s agent, who built what was probably the first locomotive to have flanged wheels. Unfortunately Trevithick’s machine was too heavy for the wooden track. Then In 1808 Trevithick publicised his steam railway locomotive expertise by building a new locomotive called ‘Catch me who can’, built for him by John Hazledine and John Urpeth Rastrick at Bridgnorth in Shropshire, This was similar to that used at Penydarren and named by Mr. Giddy’s daughter. This was Trevithick’s third railway locomotive after those used at Pen-y-darren ironworks and the Wylam colliery. He ran it on a circular track just south of the present day Euston Square tube station in London, Admission to the “steam circus” was one shilling including a ride and it was intended to show that rail travel was faster than by horse. So Recently a group of dedicated people down at the Severn Valley Railway decided to build a replica of Catch-Me-Who-Can.
In 1805 Cornish Engineer Robert Vazie, excavated a tunnel under the River Thames at Rotherhithe and had serious problems with flooding getting no further than sinking the end shafts. So Trevithick was consulted and paid £1000 (the equivalent of £67,387 as of 2014 to complete the tunnel, a length of 1220 feet (366 m). In August 1807 Trevithick began driving a small pilot tunnel and By 23 December after it had progressed 950 feet (285 m) progress was delayed after The tunnel was flooded twice and Trevithick, was nearly drowned. Progress stalled and the project was never actually completed until 1843 when Sir Marc and Isambard Kingdom Brunel built a tunnel under the Thames. Trevithick’s used a submerged tube to cross the Detroit River in Michigan with the construction of the Michigan Central Railway Tunnel, under the engineering supervision of The New York Central Railway’s engineering vice president, William J Wilgus. Construction began in 1903 and was completed in 1910. The Detroit–Windsor Tunnel which was completed in 1930 for automotive traffic, and the tunnel under the Hong Kong harbour were also submerged tube designs. Trevithick’s high-pressure steam engines had many applications including cannon manufacture, stone crushing, rolling mills, forge hammers, blast furnace blowers and traditional mining. He also built a barge powered by paddle wheels and several dredgers.
In 1808, Trevithick entered a partnership with West Indian Merchant Robert Dickinson, who had supported Trevithick’s patents. Including the ‘Nautical Labourer’; a steam tug with a floating crane propelled by paddle wheels. He also patented Iron tanks in ships for storage of cargo and water instead of in wooden caskS, these were also used to raise sunken wrecks by placing them under the wreck and creating buoyancy by pumping them full of air. In 1810 a wreck near Margate was raised in this way. Trevithick worked on many other ideas on improvements for ships: iron floating docks, iron ships, telescopic iron masts, improved ship structures, iron buoys and using heat from the ships boilers for cooking. In May 1810, he caught typhoid and nearly died and in February 1811 he and Dickinson were declared bankrupt. Around 1812, Trevithick designed the ‘Cornish boiler’. These were horizontal, cylindrical boilers with a single internal fire tube or flue passing horizontally through the middle. Hot exhaust gases from the fire passed through the flue thus increasing the surface area heating the water and improving efficiency. These types were installed in the Boulton and Watt pumping engines at Dolcoath and more than doubled their efficiency.
Again in 1812, he installed a new ‘high-pressure’ experimental steam engine also with condensing at Wheal Prosper. This became known as the ‘Cornish engine’ and was the most efficient in the world at that time. Other Cornish engineers contributed to its development but Trevithick’s work was predominant. In the same year he installed another high-pressure engine, though non-condensing, in a threshing machine on a farm at Probus, Cornwall. It was very successful and proved to be cheaper to run than the horses it replaced. It ran for 70 years and is exhibited at the Science Museum. Trevithick attempted to build a ‘recoil engine’ similar to the aeolipile described by Hero of Alexandria in about AD 50, this comprised a boiler feeding a hollow axle to route the steam to a catherine wheel with two fine-bore steam jets on its circumference. The first wheel was 15 feet (4.6 m) in diameter and a later attempt was 24 feet (7.3 m) in diameter. To get any usable torque, steam had to issue from the nozzles at a very high velocity and in such large volume that it proved not to operate with adequate efficiency. Today this would be recognised as a reaction turbine.
A miner, named Francisco Uville bought one of Trevithick’s Hight Pressure Steam Engine for draining water from his silver mine at Cerro de Pasco, Peru. In 1813 Uville journeyed to England aboard the Falmouth packet ship ‘Fox’ coincidentally with one of Trevithick’s cousins on board the same vessel. On 20 October 1816 Trevithick left Penzance on the whaler ship Asp accompanied by a lawyer named Page and a boilermaker bound for Peru where he was consulted on mining methods. The government granted him certain mining rights and he found mining areas, but did not have the funds to develop them, with the exception of a copper and silver mine at Caxatambo. After serving in the army of Simon Bolivar he returned to Caxatambo but was forced to leave the area and abandon £5000 worth of ore ready to ship. Uville died in 1818 and Trevithick soon returned to Cerro de Pasco And After leaving Cerro de Pasco, Trevithick passed through Ecuador on his way to Bogotá in Colombia. He arrived in Costa Rica in 1822 to build mining machinery.
However transporting ore and equipment, using the San Juan River, the Sarapiqui River, and the railway proved treacherous And Trevithick was nearly killed twice. He met Robert Stephenson in Cartagena And he gave Trevithick £50 to help his passage home. He arrived at Falmouth in October 1827. In 1829 he built a closed cycle steam engine followed by a vertical tubular boiler. In1830 he invented an early form of storage room heater, comptising of a small fire tube boiler with a detachable flue which could be heated either outside or indoors with the flue connected to a chimney. He was also invited to work on an engine of a new vessel at Dartford, Which involved a reaction turbine.
Following his death Trevithick was buried in an unmarked grave in St Edmunds Burial Ground, East Hill, Dartford. The burial ground closed in 1857, with the gravestones being removed in the 1960s. A plaque marks the approximate spot believed to be the site of the grave. The plaque lies on the side of the park, near the East Hill gate.
Sir Henry Royce the co- founder of World Renowned Luxury Car Manufacturer Rolls-Royce sadly passed away 22 April 1933. Born 27th March 1863 in Alwalton, Huntingdonshire, near Peterborough, he was the youngest of their five children. His family ran a flour mill which they leased from the Ecclesiastical Commissioners but the business failed and the family moved to London. His father died in 1872 and Royce had to go out to work selling newspapers and delivering telegrams, having had only one year of formal schooling. In 1878 he started an apprenticeship with the Great Northern Railway company at its works in Peterborough thanks to the financial help of an aunt. After three years the money ran out and, after a short time with a tool-making company in Leeds, he returned to London and joined the Electric Light and Power Company. He moved to their Liverpool office in 1882working on street and theatre lighting. In 1884 with £20 of savings he entered a partnership with Ernest Claremont, a friend who contributed £50, and they started a business making domestic electric fittings in a workshop in Cooke Street, Hulme, Manchester, called F H Royce and Company. In 1894 they started making dynamos and electric cranes and F.H. Royce & Company was registered as a limited liability company. The company was re-registered in 1899 as Royce Ltd with a public share flotation and a further factory opened in Trafford Park, Manchester.
Henry Royce first started an electrical and mechanical business and made his first car, a two-cylinder Royce 10, in his Manchester factory in 1904, and was introduced to Charles Rolls at the Midland Hotel in Manchester on 4 May 1904 Rolls was proprietor of an early motor car dealership, C.S.Rolls & Co. in Fulham.In spite of his preference for three or four cylinder cars, Rolls was impressed with the Royce 10. Cars All would be badged as Rolls-Royces, and be sold exclusively by Rolls. The first Rolls-Royce car, the Rolls-Royce 10 hp, was unveiled at the Paris Salon in December 1904. Rolls-Royce Limited was formed on 15 March 1906, by which time it was apparent that new premises were required for production of cars. After considering sites in Manchester, Coventry, Bradford and Leicester, they moved to Derby. The new factory was largely designed by Royce, and production began in early 1908, with a formal opening on 9 July 1908 by Sir John Montagu. During 1906 Royce had been developing an improved six-cylinder model with more power than the 30hp. Initially designated the 40/50 hp, this was the company’s first all-new model. In March 1908 Claude Johnson, Commercial Managing Director and sometimes described as the hyphen in Rolls-Royce,succeeded in persuading Royce and the other directors that Rolls-Royce should concentrate exclusively on the new model, and all the earlier models were duly discontinued. After the First World War, Rolls-Royce successfully avoided attempts to encourage the British car manufacturers to merge. Faced with falling sales of the 40/50 (later known as Silver Ghost) the company introduced the smaller, cheaper Twenty in 1922, effectively ending the one-model policy followed since 1908.
After the introduction of the Phantom model in 1925 this 40/50 model was referred to as the Silver Ghost. The new 40/50 was responsible for the company’s early reputation with over 6,000 built. In 1921, the company opened a second factory in Springfield, Massachusetts in the United States (to help meet demand), where a further 1,701 “Springfield Ghosts” were built. This factory operated for 10 years, closing in 1931. Its chassis was used as a basis for the first British armoured car used in both world wars.In 1931 Rolls-Royce acquired the much smaller rival car maker Bentley after the latter’s finances failed to weather the onset of the Great Depression. From soon after World War II until 2002 standard Bentley and Rolls-Royce cars were often identical apart from the radiator grille and minor details. In 1933, the colour of the Rolls-Royce radiator monogram was changed from red to black because the red sometimes clashed with the coachwork colour selected by clients, and not as a mark of respect for the passing of Royce as is commonly stated. Rolls-Royce and Bentley car production moved to Crewe in 1946 where they began to assemble complete cars with bodies from the Pressed Steel Company (the new standard steel models) for the first time. Previously they had built only the chassis, leaving the bodies to specialist coach-builders.
Rolls-Royce also started to produce diesel engines in 1951. Initially, these were intended for heavy tractors and earth-movers but, later, they were installed in lorries (e.g. Scammell), railcars, diesel multiple units and Sentinel shunting locomotives. Rolls-Royce took over Sentinel’s Shrewsbury factory for diesel engine production in 1956. The Rolls-Royce diesel business was acquired by Perkins in the 1980s. In 1971, Rolls-Royce was crippled by the costs of developing the advanced RB211 jet engine, resulting in the nationalization of the company as Rolls-Royce (1971) Limited. In 1973, the car division was separated from the parent company as Rolls-Royce Motors. Rolls Royce also made Torque converters and railcar engines were often used with Twin Disc torque converters which were built by Rolls-Royce under licence from Twin Disc of the USA. “Twin Disc” is the name of the company (which originally manufactured friction clutches) and does not describe the construction of the torque converter.Sadly in 1971 Financial problems caused largely by development of the new RB211 turbofan engine led – after several cash subsidies – to the company being nationalised by the government. (Delay in production of the RB211 engine has been blamed for the failure of the technically advanced Lockheed TriStar, which was beaten to launch by its chief competitor, the Douglas DC-10.)In 1973 the motor car business was spun off as a separate entity, Rolls-Royce Motors. The main business of aircraft and marine engines remained in public ownership until 1987, when it was privatised as Rolls-Royce plc, one of many privatisations of the Thatcher government. Since then it has been bought by German Automobile Manufacturer BMW.