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A sprinkler system timer is an electrical device that is used to set an irrigation sprinkler system to come on automatically at a certain time. Irrigation timers first appeared in the early 1960s to control large-radius lawn sprinklers, which at the time usually contained their own electrically operated valve (most golf-course sprinklers still use this type of actuation).
The terms greenhouse, glasshouse, and hothouse are often used interchangeably to refer to buildings used for cultivating plants. The specific term used depends on the material and heating system used in the building. Nowadays, greenhouses are more commonly constructed with a variety of materials, such as wood and polyethylene plastic. [2]
Ultrasonic hydroponic foggers can be used in conjunction with prior advances such as aeroponic misters or even ebb and flow systems to help improve humidity levels (mimicking a rainforest canopy) and increase nutrient absorption, thus boosting growth rates. Research into standalone fogger-supported hydroponic growing is underway.
"Mr. Farmer" is a song by American garage rock group The Seeds, written by vocalist Sky Saxon and produced by Marcus Tybalt. It was released as a single in 1967 and peaked at number 86 on the U.S. Billboard Hot 100 chart.
When asked a question by one of the captains conducting the examination, Hornblower freezes up and is about to fail the exam when an alarm of cannon fire interrupts the examination; fire ships have been sent by the enemy in an attempt to destroy the British ships at Gibraltar. Hornblower and Captain Foster, one of the examining captains, take ...
The Greenhouse should be read for the beauty of its descriptions, its original vision, and its complete lack of vulgarity, rare in a contemporary novel.'. [ 5 ] Kirkus Reviews was however concluded "Though the story's pace is sedate, the imagery throughout is overripe, contrasting the cycle of growth and regeneration with the human characters ...
Operating Manual For Spaceship Earth is a short book by R. Buckminster Fuller, first published in 1969, following an address with a similar title given to the 50th annual convention of the American Planners Association in the Shoreham Hotel, Washington D.C., on 16 October 1967. [1] The book relates Earth to a spaceship flying through space.
A runaway greenhouse effect involving carbon dioxide and water vapor likely occurred on Venus. [22] In this scenario, early Venus may have had a global ocean if the outgoing thermal radiation was below the Simpson–Nakajima limit but above the moist greenhouse limit. [2]