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Doctor of Letters (D.Litt., Litt.D., Latin: Litterarum Doctor or Doctor Litterarum) also termed "Doctor of Literature" in some countries is a terminal degree in the arts, humanities and social sciences that, depending on the country, is a higher doctorate after the Doctor of Philosophy (Ph.D.) degree or equivalent to a higher doctorate, such as the Doctor of Science (Sc.D. or D.Sc.) or Doctor ...
The basic unit of Roman linear measurement was the pes (plural: pedes) or Roman foot. Investigation of its relation to the English foot goes back at least to 1647, when John Greaves published his Discourse on the Romane foot. Greaves visited Rome in 1639, and measured, among other things, the foot measure on the tomb of Titus Statilius Aper ...
Lift and drag are the two components of the total aerodynamic force acting on an aerofoil or aircraft. In aerodynamics, the lift-to-drag ratio (or L/D ratio) is the lift generated by an aerodynamic body such as an aerofoil or aircraft, divided by the aerodynamic drag caused by moving through air. It describes the aerodynamic efficiency under ...
Holders of a ph.d. degree are not entitled to style themselves as "Dr." Currently Denmark distinctions between the dr. phil. as the proper doctorate and a higher degree than the ph.d., whereas in Norway, the historically analogous dr. philos. degree is officially regarded as equivalent to the new ph.d. Today, the Norwegian PhD degree is awarded ...
Drew University, in Madison, New Jersey, offers the Master of Letters as an interdisciplinary graduate degree in the Humanities through its "Arts & Letters" programme. The M.Litt. degree requires 30-33 credit hours and the option of submitting a three-credit 50- to 75-page thesis. It is an intermediate degree in the programme, which also offers ...
Seven-segment display. A typical 7-segment LED display component, with decimal point in a wide DIP -10 package. A seven-segment display is a form of electronic display device for displaying decimal numerals that is an alternative to the more complex dot matrix displays . Seven-segment displays are widely used in digital clocks, electronic ...
Density ( volumetric mass density or specific mass) is a substance's mass per unit of volume. The symbol most often used for density is ρ (the lower case Greek letter rho ), although the Latin letter D can also be used. Mathematically, density is defined as mass divided by volume: [1] where ρ is the density, m is the mass, and V is the volume ...
Using letters different from A, B, C, and D (the letters used for the capillary electrometer's waveform) facilitated comparison when the uncorrected and corrected lines were drawn on the same graph. Einthoven probably chose the initial letter P to follow the example set by Descartes in geometry.