"Come, eat of my bread, and drink of the wine which I have mingled."
Chess: "differential equations" "Casper" "arabesques"
Tawdry (adjective):
The meaning of today's word reflects undeserved shame on its eponym. Etheldreda, the queen of Northumberland in the 7th century, rejected the pomp and circumstance of her station and moved to the Isle of Ely near Cambridge, where she established a convent. As she lay dying of a throat tumor in 679, she declared her malady divine punishment for the vanity of her youth, when she was overly fond of neckwear. She was canonized as St. Audrey and the city of Ely established an annual fair in her honor. In time, this fair became known for its cheap, frilly scarves, called, St. Audrey's lace. This expression eventually degenerated to (Sain)t Audry lace and then the "lace" was dropped altogether and the remainder respelled as today's word.
Famous differential equations
- Newton's Second Law in dynamics (mechanics)
- Hamilton's equations in classical mechanics
- Radioactive decay in nuclear physics
- Newton's law of cooling in thermodynamics
- The wave equation
- Maxwell's equations in electromagnetism
- The heat equation in thermodynamics
- Laplace's equation, which defines harmonic functions
- Poisson's equation
- Einstein's field equation in general relativity
- The Schrödinger equation in quantum mechanics
- The geodesic equation
- The Navier-Stokes equations in fluid dynamics
- The Lotka-Volterra equation in population dynamics
- The Black-Scholes equation in finance
- The Cauchy-Riemann equations in complex analysis
- The shallow water equations
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