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What was the only country still building steam locomotives in 1990?
Wiki User
∙ 14y ago
China
Wiki User
∙ 14y ago
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Why does US use Fahrenheit scale?
The United States is the only major industrialized country in the world that does not use the Celsius scale. It still uses Fahrenheit because it would be too complex a project, very expensive, and also very dangerous to change over.
What are the roman contributions to architecture and engineering?
Wow...Where to start? Well, the Colosseum was one of the many architectural achievements won by the Romans. It housed 50,000 people, had an area beneath the fighting floor, and it still stands (partially) today! Aqueducts were also among the many advances. Romans used these structures to ferry water through an archway that lead from the mountains directly to the city, allowing plumbing and clean water, without any travel. Stone roads were achieved by building the Appian Way (Via Appia in Latin) which made travel faster, easier, and overall more enjoyable. Caesar, during the crossing of the Rubicon, built a HUGE bridge with his army in only 2 weeks or so. He used gravity and leverage to hammer in the huge support beams underground, by building an apparatus that would be pulled by rope, then dropped (at a 45 degree angle) straight into the wooden beam. If I'm missing more please feel free to correct me, but those are the major advances.
Is it possible to do maths literacy and still do chemical engineering?
no you need matematics to do chemical engineering because of the formular wich involves maths not mathematical litrecy
How do people still use wheelbarrows today?
People use wheelbarrows today to move materials such as bricks, concrete (wet or in bags), stones, sand, and topsoil.
How much did the Grand Coulee Dam cost?
The eventual cost of the Grand Coulee Dam was about 300 million dollars. It still remains the largest concrete structure ever built.
What was the engine number of the Mallard steam engine?
According to an online directory of Steam Locomotives, the number was and still is 4468.
Why are steam trains are not often used in the 21St century?
Steam locomotives are extremely inefficient compared to diesel and electric locomotives. In addition, they are costly to maintain. In the US, many, and most likely most, steam locomotives that are still in use require people that work with little or no pay, as volunteers to simply enjoy being able to be a part of the steam railroad. Some maintenance (such as boiler inspection and repair) requires highly specialized people that are becoming rare in the US, making this costly in many cases. So, when you see a steam locomotive at the front of a train, you most likely need to thank a few dedicated people that want to keep them going.
Are steam engines still being used?
Steam engines presently produce more power than all other types of engines combined. Most steam engines take the form of the steam turbine engine. The steam turbine is responsible for generating about 86% of the electric power used on this planet. Reciprocating steam engines are still in use for limited applications, but are generally considered obsolete. Steam engines, either the piston or turbine type were used on most big ships until recently, and there are still a few steam locomotives about.
Why does the steam comes out from steam train?
B/c a train isn't big enought to retrieve and reuse all of it, so some will be dumped into the air. On some locomotives, the still hot steam will be shot out through the smokestack, improving the air flow through the firebox. With more fire, you get more steam, and more power from the locomotive.
Are steam locomotives still used today?
Yes, for many tourist trips in the UK and elsewhere. Also possibly for ordinary trains in parts of South America, China and South Africa.
What are the jobs that steam engines did?
Steam engines and steam pumps performed and still perform any jobs presently performed by internal combustion engines, or electric motors. Except aircraft engines, (they and the necessary boilers are too heavy to fly). Locomotives, pumping, generating electricity, automobiles, industrial machinery...etc..
What are steam locomotives made of?
Steel. various alloys including some copper-oriented are used in the vital tubes. it is true the Big Boy and similar Mallets ( locomotives with two sets of driving wheels, in colloquial parlance) had 5280 feet of stacked tubes- yes, one mile, as did the French experimental model intended for use in the Alps.
What are facts about locomotives?
The first kind of locomotive ever invented was steam-powered, the original patent was from James Watt. Nowadays a total 40% of the freight cargo of the world is still being transported by train. Passengers transport is still very popular and travelling by train is one of the most eco-friendly you can choose.
Is the steam engine still around today?
yes the steam engine is still around
Why diesel engine is not used in small locomotives?
I am not an expert but my understanding is the electromotive configuration is better suited to locomotives. An internal combustion engine is used to run a generator or alternator and the electricity then runs the electric motors that drive the wheels. +++ The diesel engine IS used in small locomotives, usually with a hydraulic transmission. Larger locomotives use either electric or hydraulic drives but the prime mover is still a diesel engine.
What country was famous for building aqueducts?
The Romans built many aqueducts and many parts of them can still be seen.
Is steamengine 4449 is a kind of machine use for farming?
No, the steam engine 4449 is the last remaining of the Southern Pacific's Daylight Passenger streamlined locomotives. It would be useless in farming as it is very heavy and needs steel rails to run on. It was built for speed and it is one of the most beautiful steam locomotives still on operation. The 4449 is now owned by the city of Portland, Oregon, and has been fully restored and is used for special excursions around the Pacific Northwest. The 4449 was most famous for pulling the Freedom Train around the United States back in 1976 at the time when the US was celebrating its Bicentennial (200 years of existence).
