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  2. Roundabout PlayPump - Wikipedia

    en.wikipedia.org/wiki/Roundabout_PlayPump

    The PlayPump water system is a playground merry-go-round attached to a water pump. The spinning motion pumps underground water into a 2,500-liter tank raised seven meters above ground. The water in the tank is easily dispensed by a tap valve. According to the manufacturer the pump can raise up to 1400 liters of water per hour from a depth of 40 ...

  3. Roundabout (play) - Wikipedia

    en.wikipedia.org/wiki/Roundabout_(play)

    A merry-go-round at a park in New Jersey. A simplified drawing of various older types of roundabout to be found in British playgrounds. A roundabout (British English), merry-go-round (American English), or carousel (Australian English), is a piece of playground equipment, a flat disk, frequently about 2 to 3 metres (6 ft 7 in to 9 ft 10 in) in diameter, with bars on it that act as both hand ...

  4. Category:Playground equipment - Wikipedia

    en.wikipedia.org/wiki/Category:Playground_equipment

    Media in category "Playground equipment" This category contains only the following file. Merry-go-round.jpg 800 × 639; 176 KB

  5. Affinity laws - Wikipedia

    en.wikipedia.org/wiki/Affinity_laws

    The affinity laws (also known as the "Fan Laws" or "Pump Laws") for pumps/fans are used in hydraulics, hydronics and/or HVAC to express the relationship between variables involved in pump or fan performance (such as head, volumetric flow rate, shaft speed) and power. They apply to pumps, fans, and hydraulic turbines. In these rotary implements ...

  6. Water pumping - Wikipedia

    en.wikipedia.org/wiki/Water_pumping

    Due to the rotation, water is then picked up by the tube and pumped upwards in the hose. The coil pump, as many low lift pumps, is commonly used for irrigation purposes and for drainage of lands. It is currently still used by farmers in Asia. [1] The coil pump was built as an alternative to the Archimedean screw. Unlike the Archimedean screw ...

  7. Water tower - Wikipedia

    en.wikipedia.org/wiki/Water_tower

    A water sphere is a type of water tower that has a large sphere at the top of its post. The sphere looks like a golf ball sitting on a tee or a round lollipop. A cross section of a sphere in any direction (east-west, north-south, or top-bottom) is a perfect circle. A water spheroid looks like a water sphere, but the top is wider than it is tall.

  8. Basis of estimate - Wikipedia

    en.wikipedia.org/wiki/Basis_of_estimate

    A pivot table in BOEMax, a Basis of Estimate software package. To create a BOE companies, throughout the past few decades, have used spreadsheet programs and skilled cost analysts to enter thousands of lines of data and create complex algorithms to calculate the costs. These positions require a high level of skill to ensure accuracy and ...

  9. Adventure playground - Wikipedia

    en.wikipedia.org/wiki/Adventure_playground

    An adventure playground is a specific type of playground for children. Adventure playgrounds can take many forms, ranging from "natural playgrounds" to "junk playgrounds", and are typically defined by an ethos of unrestricted play , the presence of playworkers (or "wardens"), and the absence of adult-manufactured or rigid play-structures.

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