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Wyly Brown chisels down an edge on the pivot timber
at the quarry.
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The Third Attempt
by Peter Tyson
August 27, 1999
When we left you in Egypt five months ago, we claimed a
"strengthened resolve" to ultimately succeed in raising an
obelisk (see
Angle of Repose). Well, we're back, and if all goes to plan, on September
11, a spanking new, 25-ton granite obelisk will stand upright
at last. It will do so not in Aswan, alas, but in a quarry in
Massachusetts, for we decided for logistical reasons to make
this third attempt a bit closer to NOVA's home base in Boston.
This morning I drove out the quarry to see how things were
shaping up. The first thing I saw upon entering the
fog-shrouded quarry were some old friends. Rick and Wyly
Brown, the father-and-son timberframers who helped us in
Egypt, were back in action, with Rick running the show here.
Wyly, his mother Laura, and fellow timberframer Ellen
Gibson—who, like the Browns, works as a teacher and
sculptor at the Massachusetts College of Art - were using
chisels to shape the pivot timber, on which the obelisk will
pivot on its way to verticality. These four are just part of a
sizeable team that has been working for months to get ready.
"We're a really cohesive group," Rick told me as we threaded
our way through heaps of granite blocks. "All of us have a
passion for building, and we work well together, sharing
ideas. It's not an ego thing, with someone walking away
feeling someone else didn't use his idea."
Will the newly fashioned obelisk stand upright in
September? Rick Brown, project leader, is at the
forefront of those who dearly hope so.
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I grasped his meaning. In Egypt, since we had people from all
over the world who had never worked together and, in some
cases, were new to the work they would do there,
"cohesiveness" was not a word that immediately jumped to mind
when describing our group.
As Rick showed me around, I came to realize that this crew was
doing many things differently than the former had. Clearly
some lessons were learned at
Hamada Rashwan's
quarry.
The most obvious is the project's simpler design. Julia Cort,
producer of the upcoming NOVA film "Obelisk II," opted for a
version of the sandpit method that
Roger Hopkins
had such success with in Egypt, albeit with a much smaller
stone (see
A Tale of Two Obelisks). The obelisk-raising operation will begin with the
49,000-pound
shaft lying horizontally on a gravel ramp, with its butt end
hanging out over a concrete container filled to the brim with
dry sand. (In ancient Egypt, such a container would probably
have been built of thick walls of mud brick.) As team members
slowly drain the sand through special doors at the bottom of
the container, they will lower the obelisk into the turning
groove (for a description, see
Second Chance), in which it should rest at an angle of 75°. Then,
weather permitting, on September 11 a huge group of pullers
will yank the obelisk upright under controlled conditions.
All but complete, the ramp of "crush-and-run" gravel bears a
wall of giant granite blocks at its high end. The obelisk will
pivot over the top of this wall into the concrete-block
container, which is about half finished. (Rick dubs it the
"Lego sandbox" even though each block weighs about 10 tons.)
By Sunday, the container should be finished and filled with
sand, ready for sand removal starting Monday or Tuesday.
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From left to right, Andy Smith, Grigg Mullen, and Jim
Kricker tie a grommet onto the obelisk using heavy
Manila hemp.
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We wandered over to see the object of all the attention.
Finely hewn from New Hampshire granite, the obelisk is worthy
of any downtown plaza or presidential gravesite. Here we found
three more members of the team tying a grommet of
two-inch-thick Manila rope around the obelisk's pyramidion,
the sharply tapering tip. Tall and willowy, Jim Kricker is a
millwright from Saugerties, New York who restores sawmills and
other historic structures. Grigg Mullen, a laconic soils
engineer who teaches civil engineering at the Virginia
Military Institute, is along with one of his students, Andy
Smith. These three have been doing something else we didn't
have time to do properly in Egypt: testing the heck out of the
ropes, to avoid slippings and snappings like we experienced
there (see
A Tale of Two Obelisks).
There are other different aspects as well, like no 90-degree
edges on which ropes could abrade. And one language only
(English). And perhaps most significant, more time to prepare
for the big day. This makes it easier to keep to the spirit of
the operation, which calls for thinking like the ancients.
"When a problem comes up, we've tried not to throw
20th-century solutions at it, but back up and think how they
would do it," Rick says. "How would they treat lines? Were
they capable of splicing?"
About the only thing I can sense is exactly the same is the
optimism. When I ask the three grommet-tiers if they think
this raising will succeed, Mullen and Smith blurt out, "Oh
yeah!" Kricker is only slightly more circumspect. "We think
so," he said, and smiled. Watch for the next dispatch on
Wednesday, September 1.
Peter Tyson is Online Producer of NOVA.
Obelisk Raised! (September 12)
In the Groove (September 1)
The Third Attempt (August 27)
Angle of Repose (March 25)
A Tale of Two Obelisks (March 24)
Rising Toward the Sun (March 23)
Into Position (March 22)
On an Anthill in Aswan (March 21)
Ready to Go (March 20)
Gifts of the River (March 19)
By Camel to a Lost Obelisk (March 18)
The Unfinished Obelisk (March 16)
Pulling Together (March 14)
Balloon Flight Over Ancient Thebes (March 12)
The Queen Who Would Be King (March 10)
Rock of Ages (March 8)
The Solar Barque (March 6)
Coughing Up an Obelisk (March 4)
Explore Ancient Egypt
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