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Downspouts (or rain chains) can also channel H2O into rain barrels. Not only do the barrels help prevent water from seeping into the foundation, but they also have the added bonus of allowing you ...
Downspouts are usually vertical and usually extend down to ground level, although may be routed at an angle to avoid architectural features and may discharge onto an intermediate roof. At the bottom of downspout there are typically features to divert discharged water away from the building's foundations to prevent water damage.
The corresponding term hard landscape is used to describe construction materials. The range of soft landscape materials includes each layer of the ecological sequence: aquatic plants , semi-aquatic plants, field layer plants (including grasses and herbaceous plants ), shrubs , and trees .
A brass, spherical Helmholtz resonator based on his original design, circa 1890–1900. Helmholtz resonance, also known as wind throb, refers to the phenomenon of air resonance in a cavity, an effect named after the German physicist Hermann von Helmholtz. [1]
Artificial intelligence (AI), in its broadest sense, is intelligence exhibited by machines, particularly computer systems.It is a field of research in computer science that develops and studies methods and software that enable machines to perceive their environment and use learning and intelligence to take actions that maximize their chances of achieving defined goals. [1]
The PLATO system was launched in 1960 at the University of Illinois and subsequently commercially marketed by Control Data Corporation.It offered early forms of social media features with innovations such as Notes, PLATO's message-forum application; TERM-talk, its instant-messaging feature; Talkomatic, perhaps the first online chat room; News Report, a crowdsourced online newspaper, and blog ...