• WordNet 3.6
    • n sundial timepiece that indicates the daylight hours by the shadow that the gnomon casts on a calibrated dial
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Webster's Revised Unabridged Dictionary
    • n Sundial An instrument to show the time of day by means of the shadow of a gnomon, or style, on a plate.
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Century Dictionary and Cyclopedia
    • n sundial An instrument for indicating the time of day by means of the position of a shadow on a dial or diagram. The shadow used is generally the edge of a gnomon, which edge must be parallel to the earth's axis, about which the sun revolves uniformly in consequence of the earth's diurnal rotation. If a series of imaginary planes through the edge (one in the meridian and the others inclined to one another by successive multiples of 15°) be cut by the plane of the dial, the intersecting lines will be in the positions of the hour-lines of the dial. The shadow of any given point upon the gnomonedge will fall at different positions on the hour-line according to the declination of the sun, and this circumstance may be used to make the dial show mean instead of apparent time. But this is inconvenient, and seldom used. Portable sun-dials used often to be made so that their indications depended exclusively on the altitude of the sun; such dials require adjustment for the time of the year. See dial.
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  • Benjamin Franklin
    “Hide not your talents. They for use were made. What's a sundial in the shade.”


In literature:

She glided gracefully behind the sundial in a pretty affectation of alarm .
"Once on a Time" by A. A. Milne
Outside, the shingled turret tells the time with, instead of a clock, a fine old sundial.
"Highways and Byways in Surrey" by Eric Parker
I remember a rose-garden with a sundial in the middle of it.
"A Padre in France" by George A. Birmingham
She'll walk five times round the sundial and twice to the gate.
"The Madcap of the School" by Angela Brazil
Bernard took a cup from Mrs. Halliday and glancing at the long shadows that stretched across the lawn, indicated a sundial on a pillar.
"Partners of the Out-Trail" by Harold Bindloss
Some men lazily raked new-cut grass and a peacock preened itself by the sundial.
"The Gorgeous Girl" by Nalbro Bartley
Gwynne and Mrs. Kaye had paused by a sundial.
"Ancestors" by Gertrude Atherton
He had loved June passionately, but the beautiful body he'd held in his arms lay under that sundial by the riverside.
"The Brightener" by C. N. Williamson
Dora leaned back against the stone shaft of the sundial, and yawned luxuriously.
"A Fourth Form Friendship" by Angela Brazil
Makes a kind o' sundial, you know.
"International Short Stories" by Various

In news:

Fetzer's Sundial Chardonnay upholds varietal's standing.
Rhodes said bidders braved Wednesday's snow and rain for the Sundial auction.
Casperson's Lifestyle Boutique added at Sundial Beach & Golf Resort.
Elsie Azar was a gifted writer, and was often featured on the SUNDIAL Writer's Corner.
Sundial managers discussed the future of the company with employees about two weeks ago and plan to deliver an update in 60 to 90 days.
Sundial Writer's Corner: "A Supermarket in California".
Jackie Jackson is one of Alabama's "Poetry Out Loud" winners and we featured him on Sundial Writer's Corner.
Thursday August 16th was the official dedication of the new sundial located near the intersection of Collins and Beech streets.
Sundial part of 9/11 commemorative events.
Fred Mancinella of Great Falls stopped by the lecture while returning some books, and said he had no idea how complex the history of sundials was.
Battle Point Astronomical Association breaks ground on sundial sculpture.
Redding Police responded to an 8-month pregnant Shasta College student who was robbed on the Sundial Bridge late Wednesday night.
Sundial Writer's Corner: "Far Greater Weaponry ".
After much discussion, they were fortunate to be given the opportunity to create an analemmatic sundial for the Door Peninsula Astronomical Society.
Sunlight Shines Through McLeod's 'Sundial,' Casting Shadows.

In science:

Level 0 represents the set of numerical libraries which provide the essential low-level functionality for parallel simulations, the most prominent ones being PETSc for parallelizable sparse matrix linear algebra, ParMETIS for mesh partitioning, and Sundials for integrating stiff ordinary differential equations.
Continuum multi-physics modeling with scripting languages: the Nsim simulation compiler prototype for classical field theory
The Nsim prototype presently utilizes the readily parallelizable CVODE time integrator from the Sundials library.
Continuum multi-physics modeling with scripting languages: the Nsim simulation compiler prototype for classical field theory
As this is an adaptive algorithm whose implementation in the Sundials library experiences problems with fixing step sizes, the Nmag application also contains a fixed-step Heun integrator for applications where this is required.
Continuum multi-physics modeling with scripting languages: the Nsim simulation compiler prototype for classical field theory
Sundials: Suite of nonlinear and differential/algebraic equation solvers.
Continuum multi-physics modeling with scripting languages: the Nsim simulation compiler prototype for classical field theory
Sundials CVODE numerical integrator to perform the simulation.
TinkerCell: Modular CAD Tool for Synthetic Biology