Days of Hot Weather in Naples. Highs in the 80s Fahrenheit are common every month of the year here. And nearly every summer day at Naples reaches into the 90s F. But the thermometer normally stops short of 100 Â°F (38 Â°C). Days per month in Naples of at least 70, 80 or 90 Â°F.
The first steam locomotive was built by Richard Trevithick; it first ran on 21 February 1804, although it was some years before steam locomotive design became economically practical. The first commercial use of a steam locomotive was Salamanca on the narrow gauge Middleton Railway in Leeds in 1812.
Both fuel and water supplies are carried with the locomotive, either on the locomotive itself or in wagons (tenders) pulled behind. The first steam locomotive was made by Richard Trevithick on the 21st of Feb 1804, two years after the railway locomotive he made in 1802 or the road locomotive he made in 1801. steam locomotive is normally controlled from the boiler 's backhead and the crew is usually protected from the elements by a cab. A crew of at least two people is normally required to operate a steam locomotive.