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Pacinotti-Gramme ring armature Dynamo of Pacinotti. He is best known for inventing an improved form of direct-current electrical generator, or dynamo, which he built in 1860 and described in a paper published in Il Nuovo Cimento of 1865. It used a ring armature around which was wrapped a coil of wire, to produce a smoother current than that ...
Stuff Matters: Exploring the Marvelous Materials That Shape Our Man-Made World is a 2014 non-fiction book by the British materials scientist Mark Miodownik. The book explores many of the common materials people encounter during their daily lives and seeks to explain the science behind them in an accessible manner. Miodownik devotes a chapter ...
It was once believed that the dipole, which comprises much of the Earth's magnetic field and is misaligned along the rotation axis by 11.3 degrees, was caused by permanent magnetization of the materials in the earth. This means that dynamo theory was originally used to explain the Sun's magnetic field in its relationship with that of the Earth.
The grasshopper is copper gilded with gold leaf with glass eyes. The vane fell off the building during the earthquake of 1755 which shook Boston. He and his son Thomas repaired it and remounted it. In 1768 Thomas placed a note labeled "food for the grasshopper" in the belly of the grasshopper. It read: Shem Drowne made it, May 25, 1742.
Grasshopper 3D: A plug-in for Rhinoceros 3D that provides a visual programming language interface to create and edit geometry. It is based on graphs that map the flow of relations from parameters through user-defined functions (nodes). Grasshopper is a visual programming environment built on top of Rhino.
"Dynamo Electric Machine" (end view, partly section, U.S. patent 284,110) A dynamo is an electrical generator that creates direct current using a commutator.Dynamos were the first electrical generators capable of delivering power for industry, and the foundation upon which many other later electric-power conversion devices were based, including the electric motor, the alternating-current ...
DYNAMO (DYNAmic MOdels) is a simulation language and accompanying graphical notation developed within the system dynamics analytical framework. It was originally for industrial dynamics but was soon extended to other applications, including population and resource studies [ 1 ] [ 2 ] and urban planning.
Global distillation or the Grasshopper effect is the geochemical process by which certain chemicals, most notably persistent organic pollutants (POPs), are vaporized and transported from warmer to colder regions of the Earth, particularly the poles and mountain tops, where they condense.