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Sears Tower string project

Thinking about shadows has reminded me about an old project that never got finished. To take a piece of string the same length as the height of the Sears Tower—1450 feet. Attach one end of the string to the corner base of the Sears Tower and then take the string and walk down the street and stretch it out to full length. I wonder how far the string will go.

Let’s do the math together, shall we?

  • 1450 feet divided by 3.
  • That’s 483 yards.
  • Crap. That’s like almost five football fields long.

Let’s think of it another way, because we don’t really have football fields right in the middle of downtown Chicago.

A city block in Chicago is 660 feet. That’s 2.20 blocks. That’s it? That’s nothing! I can so do this! How about we map this out.

Here’s a big photo with green lines representing where the string might go.

And here’s a closeup.

Dang, it’s gonna stretch across the bridge all the way to Union Station. Whoa.

Maybe I’ll just start at the corner of the Sears Tower, measure the distance with my wheel measurer.

At the 1,450-foot point, I’ll mark an X on the sidewalk and take some photos of the X with the Sears Tower in the background—maybe photoshop in a graphic line.

How we relate to distance

One of the things this does is to demonstrate the sheer height of the building into other terms that we are more familiar with. We can walk the distance horizontally on the ground. We are much more familiar with distances that are horizontal rather than vertical.

This continues

» Please read Sears Tower string project: part two.

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10 Comments
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Tom Saaristo
22 years ago

Heh heh … my condo is in that picture!

l.wells
22 years ago

another way to experience the height first hand is to take the stairs, or do the hustle up the hancock (the marathon of stair climbs) i did it a few years in a row. it was great until my throat started tasting like blood at about flight 45. that was gross. i did make it up in just over 18 minutes though.

laura k.
laura k.
22 years ago

they have something at my gym about that, i think. people get together and do it in a team.

unlikelymoose
22 years ago

i’m almost 6 feet tall.

l.wells
22 years ago

yeah its in february every year and you can do it as a team or on your own. it raises money for the american lung association. 1,000 foot vertical climb 94 flights 1,632 stairs

l.wells
22 years ago

this was last year, at the time i was playing indoor soccer twice a week -before i tore my ACL and lateral miniscus 🙁 sad times so i was in fairly good shape, my foot touched every step, i tried skipping every other step, i lasted about 3 flights that way. its very tiring one flight was sort of like this: \\ \\ ___\\ // // // two sets of stairs that switched back and forth with a little platform inbetween. my dad skips every other step and finishes in crazy time, like 15:15 the record is under 10 minutes! which would be an all out sprint.

l.wells
22 years ago

oh dear, my flight of stairs did not turn out, but you get the idear