Urban Spelunking: A Beginner’s Guide

Urban spelunking, urban exploration, or building hacking (whatever you prefer) is absurdly fun, intensely rewarding, and just a shade dangerous. It’s simply finding isolated, unexplored, or abandoned places, and taking a look. I don’t think the adventure is complete without taking photos to share what you’ve discovered, but it isn’t essential to the process. I’d like to take a moment to try and convince you of the incredible potential of actually stepping inside that abandoned insane asylum you pass on the highway every day going to work. I’m also going to give you a primer on how to get in to these spots, what to do once you’re there, how to keep yourself safe, and the kind of tech you’ll want to bring along if you’re intent on gathering some fantastic photos.

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How They do That: The Sapporo Can

Many of you will be familiar with the tall, elegant Sapporo steel Sapporo can pictured on the right.  It’s a lovely tapered pint glass shape, with subtle creases every half inch along its surface. You might be curious as to why cans are almost never this shape, how the standard beer can is made, and what sets this one apart from a manufacturing perspective. In this post, I’m going to hunt through the clues left on the can itself to diagnose how this thing was made, and how the manufacturing process elegantly dictates the product’s final form.

The story of the standard aluminum can is fascinating. It goes from a simple disc of aluminum metal to a fully formed can in a scant few steps. How It’s Made has done a very complete diagnosis of the process, and The Engineer Guy has a brilliant video describing the function of the pull tab. However, the process for making one of them has almost nothing to do with the construction of one of Sapporo’s steel cans.

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