William Henry Hudson

William Henry Hudson (4 August 1841 – 18 August 1922) was an author, naturalist, and ornithologist.

Life and work

Hudson was born in the borough of Quilmes, now Florencio Varela of the greater Buenos Aires, in Buenos Aires Province, Argentina. He was the son of Daniel Hudson and his wife Catherine née Kemble, U.S. settlers of English and Irish origin. He spent his youth studying the local flora and fauna and observing both natural and human dramas on what was then a lawless frontier, publishing his ornithological work in Proceedings of the Royal Zoological Society, initially in an English mingled with Spanish idioms. He had a special love of Patagonia.

Hudson settled in England during 1874, taking up residence at St Luke's Road in Bayswater. He produced a series of ornithological studies, including Argentine Ornithology (1888–1899) and British Birds (1895), and later achieved fame with his books on the English countryside, including Hampshire Day (1903), Afoot in England (1909) and A Shepherd's Life (1910), which helped foster the back-to-nature movement of the 1920s and 1930s.

Kilowatt hour

The kilowatt hour (symbol kWh, kW·h, or kW h) is a derived unit of energy equal to 3.6 megajoules. If the energy is being transmitted or used at a constant rate (power) over a period of time, the total energy in kilowatt-hours is the product of the power in kilowatts and the time in hours. The kilowatt-hour is commonly used as a billing unit for energy delivered to consumers by electric utilities.

Definition

The kilowatt-hour (symbolized kW⋅h) is a unit of energy equivalent to one kilowatt (1 kW) of power sustained for one hour.

One watt is equal to 1 J/s. One kilowatt-hour is 3.6 megajoules, which is the amount of energy converted if work is done at an average rate of one thousand watts for one hour.

Note that the international standard SI unit of energy is the joule. The hour is a unit of time "outside the SI", so the kilowatt-hour is a non-SI unit of energy. It is not listed among the non-SI units accepted by the BIPM for use with the SI.

Examples

An electric heater rated at 1000 watts (1 kilowatt), operating for one hour uses one kilowatt-hour (equivalent to 3.6 megajoules) of energy. A television rated at 100 watts operating for 10 hours continuously uses one kilowatt-hour. A 40-watt light bulb operating continuously for 25 hours uses one kilowatt-hour.

WH

WH, W.H., or wh may refer to:

Places

Wuhan, Hubei, China

Linguistics

Other uses

Five Ws

The Five Ws, Five Ws and one H, or the Six Ws are questions whose answers are considered basic in information-gathering. They are often mentioned in journalism (cf. news style), research, and police investigations. They constitute a formula for getting the complete story on a subject. According to the principle of the Five Ws, a report can only be considered complete if it answers these questions starting with an interrogative word:

Some authors add a sixth question, “how”, to the list, though "how" can also be covered by "what", "when", or "where":

Each question should have a factual answer — facts necessary to include for a report to be considered complete. Importantly, none of these questions can be answered with a simple "yes" or "no".

In the United Kingdom (excluding Scotland), the Five Ws are used in Key Stage 2 and Key Stage 3 lessons.

History

Rhetoric

This section focuses on the history of the series of questions as a way of formulating or analyzing rhetorical questions, and not the theory of circumstances in general.