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Cymatics. A demonstration of sand forming cymatic patterns on a metal plate. Cymatics (from Ancient Greek: κῦμα, romanized : kŷma, lit. 'wave') is a subset of modal vibrational phenomena. The term was coined by Swiss physician Hans Jenny (1904–1972). Typically the surface of a plate, diaphragm, or membrane is vibrated, and regions of ...
Mark Freuder Knopfler OBE (born 12 August 1949) is a British guitarist, singer, songwriter, and record producer. He was the lead guitarist, singer and songwriter of the British rock band Dire Straits from the group’s formation in 1977 until their dissolution in 1995.
2,4,5-Trichlorophenoxyacetic acid (also known as 2,4,5-T ), a synthetic auxin, is a chlorophenoxy acetic acid herbicide used to defoliate broad-leafed plants. It was developed in the late 1940s, synthesized by reaction of 2,4,5-Trichlorophenol and chloroacetic acid. It was widely used in the agricultural industry until being phased out ...
The first US power plug and socket dated 1904. Several early American electrical plug and socket arrangements were invented by Harvey Hubbell. On 26 February 1903 he filed two patent applications featuring 2-pin plugs and adaptors for using his plugs with existing designs of lamp sockets and wall receptacles.
Life and career. Jenny was born in Basel, Switzerland. After completing a doctorate he taught science at the Rudolph Steiner School in Zürich for four years before beginning medical practice . In 1967, Jenny published the first volume of Cymatics: The Study of Wave Phenomena. The second volume came out in 1972, the year he died.
Faraday waves, also known as Faraday ripples, named after Michael Faraday (1791–1867), are nonlinear standing waves that appear on liquids enclosed by a vibrating receptacle. When the vibration frequency exceeds a critical value, the flat hydrostatic surface becomes unstable. This is known as the Faraday instability.
Ingenium AJ200 (for I4 Turbo) Volvo VEA (2.5t I5) Duratec is a brand name of the Ford Motor Company used for the company's range of gasoline -powered four-cylinder, five-cylinder and six-cylinder passenger car engines. The original 1993 Duratec V6 engine was designed by Ford and Porsche. [1] Ford introduced this engine in the Ford Mondeo.
Later, it was in Italy that a sixth course became commonplace and this was an easily done by replacing or reworking the nut and bridge to plug in another tuning peg hole for the sixth string. An ornate guitar made by a Joakim Thielke (1641–1719) of Germany was altered in this way and became a success.