Dear 43 Things Users,

10 years after introducing 43 Things to the world, we have decided we have met our last goal: completing the incredible experience that has been 43 Things. Please join us in giving one last cheer to all the folks who have shared their goals with the world, as well as all the people who have worked at The Robot Co-op to build this incredible website. We won a Webby Award, published a book, and brought happiness to a lot of people.

Starting today, 43 Things users can export their goals and entries from the site. Starting August 15, we will make the site “read only”. 43 Things users will still be able to view the site and export their content, but we won’t be taking any new content from users. We hope to leave the site up for folks to see and download their content until the end of the year. Ending on New Year’s Eve takes us full circle.

It has been a long ride (one of our original goals was to "build a company that lasts at least 2 years” - we beat that one!) While we wish the site could live on, it has suffered from a number of challenges - changes in how people use the site, the advertising industry, and how search engines view the site. We wish the outcome was different – but we’ve always been realistic about when our goals are met and when they aren't.

As of today, you will be able to download your goals and entries. See more about that on the FAQ page. Thanks for 10 great years of goal-setting and achieving.

- The Robots.

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FAQ

Eric Hodel in Seattle is doing 34 things including…

Build a zeppelin

11 cheers

 

Eric Hodel has written 4 entries about this goal

Ribs

I’ve built two ribs, so my hands are now thoroughly covered in superglue. I laminated three layers of 3/32” x 3/8” balsa in a spiral. Each rib is about 20” in diameter.

While building the spiral I used pins to hold the balsa in place while the glue set. The first rib was a bit more difficult as I pinned down the strips in too many places. The second I only pinned the ends down and glued longer sections. This gave fewer voids in the lamination, too.



New Tools!

Today I went out and got some balsa wood and various tools to begin construction of my zeppelin. I started by cutting a piece 3” by 6” by 1/32” sheet of balsa into 3/8” strips using this method, then I put some nails in a 4’ x 4’ sheet of plywood in a circle. I stopped after seven because it seemed too loud.

With 36” strips this thin, I won’t need to soak the balsa to get it to bend, which means I won’t need to clean my tub for soaking.

I’ve already sustained an injury, which can only be a good omen, as almost every other time I’ve built something awesome I’ve drawn blood. This time it was from hitting my elbow on my counter as I retrieved my x-acto knife.



Size

Hydrogen has a lifting capacity of 1.1 kg/m³, and Helium has a lifting capacity of 1.02 kg/m³.

At 3m long and 1m in diameter, that’s ~ 2.1 m³ of gas, or 2.14 kg lifting capacity. I could probably increase the diameter to 1.5 m and still be able to make it out the door, giving 5.3 kg lifting capacity.



Zeppelins are cool

Much cooler than blimps, which are big gas bags with some motors draped off of them.

With a zeppelin you can put motors anywhere because they’ve got this frame around them. It should be easy to build a zeppelin frame from balsa wood, then attach some model-airplane motors to it. Plus, with the rigid structure you could probably even attach things like cameras to them.

You also get to hang ropes off of them for mooring, just like in real life! Oh, and I can even get a cool zep captain hat, just like ‘ol Ferdinand himself!



Eric Hodel has gotten 11 cheers on this goal.

 

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