Реферат

Реферат на тему Odd Railway Gauges Essay Research Paper The

Работа добавлена на сайт bukvasha.net: 2015-06-21

Поможем написать учебную работу

Если у вас возникли сложности с курсовой, контрольной, дипломной, рефератом, отчетом по практике, научно-исследовательской и любой другой работой - мы готовы помочь.

Предоплата всего

от 25%

Подписываем

договор

Выберите тип работы:

Скидка 25% при заказе до 13.1.2025


Odd Railway Gauges Essay, Research Paper

The distance between the two rails of a railway on a normal railway in the United States is 4 feet 8.5 inches. Such a strange measurement basically evolves from the width of two horses rears. Imperial Rome built the original cross-country roads in England for their army. They also built war chariots that were just wide enough to contain the rears of two horses for their army. These chariots all were made with the same width between the wheels because they were all made by Imperial Rome. Because they had the same spacing they created grooves in the roads driving on them continuously in the same spot. Because these roads were still in use and had these grooves, wagons had to be built so that their wheels would fit into them in order to prevent their wheels from breaking. With the same implements and patterns that were used to create these wagons, people built tracks for trams to use. The same people who built these then proceeded to build the earliest railway tracks. As a result, the railways had the same specifications as the tram tracks. The English natives, who have now found a permanent home in America, then built the U.S. railways using the same measurements as the English railways. Thus the distance between the two rails of the railroad is 4 feet 8.5 inches. This unusual width has even affected the most highly developed means of transportation in the world, the Space Shuttle. Connected to the chief fuel tank of the Space Shuttle are two large booster rockets, which are called solid rocket boosters (SRBs). Made by Thiokol in Utah, these SRBs had to be shipped to the launch site via the railway. During its travel to the launch site, the railway ran through a tunnel encompassed by mountains. Because the SRBs had to go through the tunnel and the tunnel is only slightly larger than the width of the railway, the designers of the SRBs had to make them a little smaller than what they had wanted.


1. Реферат Изменение организационной структуры предприятия
2. Реферат на тему Насыщенные альдегиды и кетоны
3. Реферат Создание теории рынка Альфредом Маршаллом
4. Диплом Библейские мотивы в творчестве МЮЛермонтова 2
5. Реферат Украинская интеллигенция на Соловках
6. Реферат Информационные технологии аудиторской деятельности 2
7. Реферат на тему Деловое общение с англичанами
8. Реферат на тему Основні структурні елементи релігії
9. Реферат на тему The Life Of George Bent Essay Research
10. Реферат на тему Abortion Essay Research Paper Abortion 3