Two-valved
61Pulse jet engine — A pulse jet engine (or pulsejet) is a very simple form of internal combustion engine based jet engine where combustion occurs in pulses. A typical pulsejet comprises an air intake fitted with a one way valve, a combustion chamber, and an… …
62Natural horn — in the V A Museum, London Classification Brass instrument The natural horn is a musical instrument that is the ancestor of the modern day horn, and is differentiated by its lack of valves. It consist …
63Types of trombones — There are many different types of trombones. The most frequently encountered trombones today are the tenor and bass, though as with other Renaissance instruments such as the recorder, the trombone has been built in every size from piccolo to… …
64cornet — /kawr net / for 1; /kawr nit, kawr net / for 2 8, n. 1. Music. a valved wind instrument of the trumpet family. 2. a small cone of paper twisted at the end and used for holding candy, nuts, etc. 3. a pastry cone, usually filled with whipped cream …
65Types of trombone — There are many different types of trombone. The most frequently encountered trombones today are the tenor and bass, though as with other Renaissance instruments such as the recorder, the trombone has been built in every size from piccolo to… …
66Drum and bugle corps (modern) — For the Military unit, see Corps of Drums. Boston Crusaders Drum and Bugle Corps, a DCI World Class corps from Boston, Massachusetts. A drum and bugle corps, also known as a drum corps, is a musical marching unit (similar to a marching band)… …
67Marian Ionescu — Marian Ion Ionescu Marian Ion Ionescu (born 21 August 1929) is a pioneer British cardiac surgeon who spent his professional life initially in his native Romania and afterwards, the main part of his productive life in Great Britain. His interest… …
68United States Marine Drum and Bugle Corps — The United States Marine Drum and Bugle Corps the Marine D B performs martial and popular music for hundreds of thousands of spectators each year. The Corps of more than 80 Marine musicians, dressed in ceremonial red and white uniforms, is known… …
69MV Agusta F4 series — Infobox Motorcycle name = MV Agusta F4 1000 R aka = manufacturer = MV Agusta production = 2006 present predecessor = successor = parent company = class = super bike platform = engine = liquid cooled inline four cylinder, 4 stroke, dohc, 16 radial …
70Gas pycnometer — A gas pycnometer, a type of pycnometer, is a laboratory device used for measuring the density or more accurately the volume of solids, be they regularly shaped, porous or non porous, monolithic, powdered, granular or in some way comminuted,… …
