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Velomobiles (enclosed recumbent bicycles) have the highest energy efficiency of any known mode of personal transport because of their small frontal area and aerodynamic shape. At a speed of 50 km/h (31 mph), the velomobile manufacturer WAW claims that only 0.5 kWh (1.8 MJ) of energy per 100 km is needed to transport the passenger (= 18 J/m).
The Transportation Act of 1938 and the amended Railway Act, placed control and regulation of carriers in the hands of the Board of Transport commissioners for Canada. The Royal Commission on Transportation was formed December 29, 1948, to examine transportation services to all areas of Canada to eliminate economic or geographic disadvantages.
A break-in-bulk point is a place where goods are transferred from one mode of transport to another, for example the docks where goods transfer from ship to truck. [citation needed] Break-bulk was the most common form of cargo for most of the history of shipping.
Sediment transport is the movement of solid particles , typically due to a combination of gravity acting on the sediment, and the movement of the fluid in which the sediment is entrained.
For example, a gallon of gasoline could transport 5 kg of meat over 60,000 miles (97,000 km) by road (40 tonner at 8 mpg) in bulk transport, or it could transport a single consumer only 30 or 40 miles (64 km) to buy that meat. Thus foods from a distant farm that are transported in bulk to a nearby store consumer can have a lower footprint than ...
Air freight rates rose as a consequence, from $0.80 per kg for transatlantic cargoes to $2.50–4 per kg, enticing passenger airlines to operate cargo-only flights through the use of preighters, while cargo airlines brought back into service fuel-guzzling stored aircraft, helped by falling oil prices. [15]
Potential energy with respect to gravity, close to Earth, per unit mass: gh, where g is the acceleration due to gravity (standardized as ≈9.8 m/s 2) and h is the height above the reference level (giving J/kg when g is in m/s 2 and h is in m).
One g is the force per unit mass due to gravity at the Earth's surface and is the standard gravity (symbol: g n), defined as 9.806 65 metres per second squared, [5] or equivalently 9.806 65 newtons of force per kilogram of mass.