A Brook Runs through It: Fresh Water from the Bach for Today\u27s Thirsty Church

(Excerpt) Not Bach [brook], but Meer [sea] should be his name, Beethoven once said of Johann Sebastian Bach. 1 In this anniversary year marking the two-hundred and fiftieth year of his death on July 28, Bach is receiving extraordinary attention, which includes a significant biography by Christoph Wolff,2 yet another series of recordings of all the cantatas (that makes five3), and soul-searching among various scholars in an attempt to grasp the essence of this person\u27s life and work

Arts and the Liturgy: With Countless Gifts of love

(Excerpt) With Countless Gifts of Love: like a mantra these words flow through our lives. At some point we begin to realize that the countless gifts of love are primarily people, and one such person, Herbert Lindemann, we are all privileged to acknowledge these days

Liturgical Traffic in Culture: Gridlock, Beginning Drivers, Detours, and DUI

(Excerpt) In the Sunday New York Times from March 16, 1997 a short piece with accompanying picture offered a report on a weekly liturgy at St. Mark\u27s Episcopal Cathedral in Seattle, a liturgy which is very popular with young people. Entitled The Faithful Are Casual at This Sunday Service, the article concerns a forty-year tradition of doing sung compline in a space which is almost totally dark except for about fifteen male singers, bedecked in cassock and surplice, who stand dimly lighted at portable choir desks. Young people hurry to the 9:30p.m. service to sit in the pews, lie prone on their backs or in fetal position, some kissing each other, both those straight and those gay. Ushers carry calligraphic signs that urge silence and no whispering. It\u27s a kind of date night, attendees say, and it is well-liked because the service is not preachy but offers both anonymity and community. A former liturgist at the cathedral reflected that in our culture we do things regarding love and spirituality better by candlelight, at night

Isoperimetric Inequalities for Minimal Submanifolds in Riemannian Manifolds: A Counterexample in Higher Codimension

For compact Riemannian manifolds with convex boundary, B.White proved the following alternative: Either there is an isoperimetric inequality for minimal hypersurfaces or there exists a closed minimal hypersurface, possibly with a small singular set. There is the natural question if a similar result is true for submanifolds of higher codimension. Specifically, B.White asked if the non-existence of an isoperimetric inequality for k-varifolds implies the existence of a nonzero, stationary, integral k-varifold. We present examples showing that this is not true in codimension greater than two. The key step is the construction of a Riemannian metric on the closed four-dimensional ball B with the following properties: (1) B has strictly convex boundary. (2) There exists a complete nonconstant geodesic. (3) There does not exist a closed geodesic in B.Comment: 11 pages, We changed the title and added a section that exhibits the relation between our example and the question posed by Brian White concerning isoperimetric inequalities for minimal submanifold

Some effects of combustion on turbulent mixing

Mixing and combustion of near-sonic central hydrogen jets and coaxial supersonic air or nitrogen streams are discussed. Results of concentration measurements in these flows are presented

Performance characteristics of axisymmetric convergent-divergent exhaust nozzles with longitudinal slots in the divergent

An investigation was conducted in the Langley 16 foot Transonic Tunnel and in the static test facility of that tunnel to determine the effects of divergent flap ventilation of an axisymmetric nozzle on nozzle internal (static) and wind on performance. Tests were conducted at 0 deg angle of attack at static conditions and at Mach numbers from 0.6 to 1.2. Ratios of jet total pressure to free stream static pressure were varied from 1.0 (jet off) to approximately 14.0 depending on Mach number. The results of this study indicate that divergent flap ventilation generally provided large performance benefits at overexpanded nozzle conditions and performance reductions at underexpanded nozzle conditions when compared to the baseline (unventilated) nozzles. Ventilation also reduced the peak static and wind on performance levels