Yep, a real "coinkydink!" (-:
Here's an interesting test: Fill in the ages of the various people
associated with the American Revolution as of the year 1776:
Marquis de Lafayette
Scroll down for the answers. Source:
Marquis de Lafayette, 18
James Monroe, 18
Gilbert Stuart, 20
Aaron Burr, 20
Alexander Hamilton, 21
Betsy Ross, 24
James Madison, 25
Thomas Jefferson, 33
John Adams, 40
Paul Revere, 41
George Washington, 44
Samuel Adams, 53
It's remarkable how much they knew with the little technology
the had for education. Granted, they were probably the cream of the
crop but those were some sharp people.
Maybe they were better off not having American Idol as a distraction.
They made a big point of the speed and said that the "follow on trades"
couldn't keep up with just the outside hoist, which ran very slowly. So as
soon as they could, they got the internal elevators working.
I don't build too many skyscrapers so it was news to me! (-: It reminded
me of a story in one of my journalism text books about writing "feature"
stories. The article described how riveters (in the old days, I guess) use
to toss hot rivets around from where they were heated to where they were
hammered in just using coffee cans as catcher's mitts. When asked what
would happen if he dropped a red-hot rivet to the streets below the rivet
jockey said "Well, he's not *supposed* to drop it!"
leads to a lot of interesting hits.
<<Until relatively recently, structural steel connections were either welded
or riveted. High-strength bolts have largely replaced structural steel
rivets. Indeed, the latest steel construction specifications published by
AISC (the 14th Edition) no longer covers their installation. The reason for
the change is primarily due to the expense of skilled workers required to
install high strength structural steel rivets. Whereas two relatively
unskilled workers can install and tighten high strength bolts, it takes a
minimum of four highly skilled riveters to install rivets in one joint at a
Plus, the occasional red hot rivet hitting a pedestrian had to raise the
Here's something else about rivets v. bolts I did not know:
<The stress and shear in a rivet is analyzed like a bolted joint. However,
it is not wise to combine rivets with bolts and screws in the same joint.
Rivets fill the hole where they are installed to establish a very tight fit
(often called interference fit). It is difficult or impossible to obtain
such a tight fit with other fasteners. The result is that rivets in the same
joint with loose fasteners carry more of the load-they are effectively more
stiff. The rivet can then fail before it can redistribute load to the other
loose fit fasteners like bolts and screws. This often causes catastrophic
failure of the joint when the fasteners unzip. In general, a joint composed
of similar fasteners is the most efficient because all fasteners reach
The article describes the process of riveting in the old days:
<<At a central location near the areas being riveted, a furnace was set up.
Rivets were placed in the furnace and heated to a glowing hot temperature.
The Rivet warmer or heater used tongs to individually remove rivets and
throw them to a catcher stationed near the joints to be riveted. The catcher
usually caught the rivet in a leather bucket with an ash lined bottom then
placed the glowing hot rivet into the hole to be riveted, and quickly turned
around to await the next rivet. The "Holder up or holder on" would then hold
a heavy rivet set or dolly or another (larger) pnuematic hammer against the
round head of the rivet, while the Riveter (or sometimes two
riveters)applied a pneumatic rivet hammer to the unformed head, making it
mushroom tightly against the joint in its final domed shape. Upon cooling,
the rivet contracted and exerted further force, tightening the joint.>>
The design for the new One World Trade Center uses a square base that
transforms into a square top that's rotated like a 8 point star. Very easy
to see how it works with a computer animation, harder to show in a still
(Published: Tuesday, August 7, 2012, 8:07 PM - old, but it makes the design
A lot of reviews panned the design but I think it's pretty elegant. It's
easy to like a building after watching how hard the people worked to build
it and how much of their heart went into it.
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