Rochester Bicentennial Sundial

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Published: 08 March 2017

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Rochester, Michigan was settled in 1817 and is now celebrating its Golden Centennial with a sundial.  The city is on the northern outskirts of Detroit, with more than thirteen thousand citizens.  According to Natalie Broda, Rochester City Council approved $190,000 for the sundial, but the cost of the project is expected to exceed that due to the unstable, uncompacted ground that the heavy monument will sit on." The dial will be unveilled as part of the bicentennial homecoming envent scheduled for August 12, 2017.

Broda continues,""The sundial is the brainchild of Rochester’s city beautiful commission, which had been mulling the project over for several years according to Nik Banda, deputy city manager. The project was chosen after a request for proposals was sent out from city council." The sundial design was done by Russell Thayer, a sculpture artist from Franklin, Michigan.

The 20-foot tall gnomon of triangular cross section will be constructed with weathering steel, otherwise known as corten steel.  Broda notes that this material was chosen to pay homage to the steel used throughout the old knitting mills of historic Rochester.

aewinc.com describes the surrounding hour marks as part of "Twenty stones [each weighing over 1000 pounds] within and surrounding the plaza have been carefully sited to celebrate twenty decades of history. The decorative stones are indigenous to Michigan and have colors that complement the gnomon; they will serve as both seating and focal elements, as well as [hourly] time markers for the sundial. Historic plaques will be placed on the stones highlighting historic events which occurred during each of the twenty decades." To increase the historical retrospective, reclaimed 100-year old bricks from historic Main Street buildings will be used to complete the circular plaza around the sundial monument.

Washington Monument Sundial

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Published: 08 January 2017

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Today it is snowing in Washington DC and it brings to mind a winter some 43 years ago when the Washington Monument was turned into a sundial.  Over the years many have proposed turning this spiring monument into a sundial.  For example at the first North American Sundial Society (NASS) Conference in 1995 Robert Terwilliger drew a map of the shadow's excursion from Independence Avenue to E Street NW, repeated here at left. In June 2011 in the NASS Quarterly Journal The Compendium Robert Kellogg suggested that "...the precise shadow lines drawn in [Terwilliger's map] are precise geometrical constructs.  The problem is the sun is not a point source, but a disk about 1/2 degree in diameter.  The result is the sun casts a penumbral (partial) shadow when it is partially obscured, resulting in a range of light to dark sunlight that blurs the edges of shadow, making a gradient from light to dark.

To get a feeling for the impact of the penumbral shadow from the Washington Monument, we start with a brief summary of the Monument:   A competition was held in 1836 and won by architect Robert Mills who designed a tall obelisk.  Excavation began in early 1848 and the cornerstone was laid as part of the 4th of July ceremony by the Freemasons.  Lack of funds created a hiatus in construction in 1858, and finally the capstone to create a pyramidal point to the obelisk was laid December 6th, 1884. The obelisk as we see it today is 169.29 meters tall, 16.8 meters wide at the base and 10.5 meters wide at the start of the capstone pyramid.  The pyramid itself is 17m tall, with a small aluminum capstone at the tip and by the time the sun is sufficiently blocked by the top of the oblesk for us to see the shadow, the sun is well below the tip.

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Campbell University Sundial Commemorates Math Professor

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Published: 01 April 2016

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Mathematics professor Jerry Duncan Taylor passed away in 2013, but his 46 years of teaching lives on at Campbell University in Buies Creek North Carolina just south of Raleigh.   A commemorative sundial in front of Taylor-Bott Rogers Fine Arts Building was dedicated on Wednesday, March 21, 2016.

The highly polished dial, approximately 12 inches square, with an inclined bar gnomon sits on a plinth embedded in a low brick wall for all to see.  There are time marks for every 10 minutes, with standard time given as Roman numerals and daylight savings time one hour later given in larger Arabic numbers.  

Professor and mathematics department chair Meredith Williams recalled the start of his teaching career at Campbell: "I'm not sure I would have made it through my first semester without Dr. Taylor. I had an extremely challenging group of students in a class who were determined to see how hard they could push the new professor.  Dr. Taylor always had an encouraging word for me before I went to class."

Rachel Davis quoted Provost Mark Hammond from the sundial dedication (http://www.campbell.edu/news/item/sundial-dedicated-to-late-math-professor) "We wanted something physical that we could see, celebrate, and reflect on him and the good man that he is and the way he has touched many of the people here... [his] very inspired spouse, Louise Taylor, thought that perhaps we could memorialize Jerry through a sundial.  It gives us the time to pause and reflect and think about Jerry."

Southern Arkansas University Dedicates Sundial

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Published: 29 October 2015

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The large analemmatic sundial in front of the Harton Theater North Entrance of Southern Arkansas University (SAU) is being formally dedicated on Thursday, November 5th, 2016 in memory of the late David Thomas Smith, a 1957  SAU alum and  retired assistant director of the SAU Physical Plant.

The Smith Sundial, funded by family and friends of David Smith was built by the SAU Department of Art and Design and engineers of the SAU Physical Plant.  Patrick Finney was the construction supervisor and Steven Ochs was the project concrete art designer and craftsman.  As described in the NASS Sundial Registry, Dial #800 is "a 22 by 17 foot analemmatic dial of stained concrete with Arabic hour numerals of polished brass.  The dial perimeter and hour numerals are set in a blue decorative polymer "U" arc, appearing as a large mule shoe that represents the university Muleriders mascot symbol.  Dial colors represent the royal blue and gold school colors."

As reported by Southern Arkansas University, "The Smith Sundial at SAU is one of only four Arkansas sundials that are registered on the North American Sundial Society, and the only one outside of Little Rock and North Little Rock. It is also the only sundial in the state that is [a monumental] analemmatic..."

Read more at: https://web.saumag.edu/news/2015/10/28/sau-to-dedicate-smith-sundial-on-nov-5/

November 11th Veterans Memorial

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Published: 15 November 2014

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Anthem Veterans Memorial Sun Alignment on Nov 11th [photo: Anthem Veterans Memorial Committee and Mike Spinelli]

The Anthem Veterans Memorial in Anthem, AZ was dedicated on November 11, 2011 at 11am (11-11-11 11:11:11) to honor the service and sacrifice of the United States armed forces and to provide a place of honor and reflection for veterans, their family and friends. Veterans gather here annually on November 11^th to watch a solar alignment at 11:11am when the sun precisely illuminates The Great Seal of the United States. The memorial was designed by Renee Palmer-Jones, and constructed under the guidance of Project Engineer Jim Martin and construction expert Steve Rusch.

Attachments:

anthem-veterans-memorial-construction.pdf	[ ]	262 kB
anthem-veterans-memorial-design.pdf	[ ]	16 kB
anthem-veterans-memorial-fact-sheet.pdf	[ ]	33 kB
anthem-veterans-memorial-history.pdf	[ ]	33 kB
anthem-veterans-memorial-planning-committee.pdf	[ ]	49 kB

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VLA Sundial Memorial

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Published: 31 October 2013

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Bracewell Memorial Sundial at VLA Photo Credit: NRAO/AUI/NSF

In 1961 Professor Ronald Bracewell at Stanford University created an X shaped array (called a “Chris-Cross array” for W.R. “Chris” Christiansen) using 32 10-foot diameter dish antennas to form a radio spectroheliograph nestled in the hills of Palo Alto, California. 

Attachments:

Ron_Bracewell_Radio_Sundial_Brochure.pdf

[ ]

1780 kB

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9/11 Timeless Sundial Dedicated In Hampton, N.J.

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Published: 12 September 2013

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Tom Carpenter, a member of the Hampton fire company for 44 years, presented plans for a 9/11 memorial to the Borough Council at the beginning of 2012 and Councilman James Cregar began designing the memorial as a sundial using beams recovered from Ground Zero of the Twin Towers.

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9-11 Memorial Sundial Dedicated at Croton Landing

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Published: 09 September 2012

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On September 11, 2012 the Town of Cortlandt and the Villages of Buchanan and Croton-on-Hudson in New York will dedicate a giant sundial as part of a 9-11 memorial using steel salvaged from the World Trade Center site.  All are welcome to the dedication.

Visitors attending the dedication of the Buchanan*Cortlandt*Croton-on-Hudson (BCC) 9-11 Remembrance Memorial are asked to assemble at 2:30 pm at the Croton Landing parking lot and walk the 1/2 mile to the memorial site for the 3 o’clock ceremony.  A van will be available for those who wish to ride. For further information, please call the Project Director, Janet Mainiero at 914-271-8222.

Attachments:

769_10_Gazette_Newspaper_Article_Dial_Dedication.pdf	[ ]	883 kB
769_10_The_Gazette_Article_on_Dial_Dedication.pdf	[ ]	883 kB
769_11_Details_of_Nine_Dial_Medallions.pdf	[ ]	107 kB
769_11_Nine_Dial_Medallions.pdf	[ ]	107 kB
769_12_Architect_Site_Elevation_Plan.pdf	[ ]	66 kB
769_13_Architect_Site_Plan.pdf	[ ]	553 kB
769_14_Architect_Sundial_Geometry_Plan.pdf	[ ]	349 kB
769_30_Poem-Reach_Through_The_Shadow.pdf	[ ]	11 kB

Read more: 9-11 Memorial Sundial Dedicated at Croton Landing