Ceiling fan be used to reduce the stratification of warm air in a room by forcing it down to affect both occupants' sensations and thermostat readings, thereby improving climate control energy efficiency. Punkah-type ceiling fans date back to 500 BC, and are native to India. Unlike modern rotary fans, these punkah fans move air by moving to and fro, and were operated manually by cord. The first rotary ceiling fans appeared in the early 1860s and 1870s in the United States. At that time, they were not powered by any form of electric motor. Instead, a stream of running water was used,
A Grass Rope A Grass Rope A Grass Rope is a children's novel by William Mayne, first published by Oxford in 1957 with illustrations by Lynton Lamb. Mayne won the annual Carnegie Medal recognising the year's best children's book by a British subject. Set in the Yorkshire Dales, it is a simple story subtly told, steeped in the past and with a strong sense of place. The story of the hunt for a lost treasure is interwoven with descriptions of daily life on a farm and of the local scenery. When Adam Forrest comes to re-paint the outside of the Unicorn Inn in