Field Notes

Welcome to our Field Notes podcast, where we interview industry personalities with interesting stories to tell.

Four decades into his career, prominent fabrication engineer Mark Holland’s first employer remains his only employer. Holland has spent 42 years with Paxton & Vierling Steel and is still as enthused about his work as when he started.

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Weekly Jigsaw Puzzle

Vagelos Laboratory for Energy Science and Technology

Vagelos Laboratory for Energy Science and Technology

You can count on an energy research center to build a state-of-the-art sustainable steel building!

The unique architecture of the University of Pennsylvania's new Vagelos Laboratory for Energy Science and Technology (VLEST) integrates sustainable ideas and energy efficiency, aligning with the research institute's core mission. The building’s form responds to the complex site and incorporates passive, low-energy strategies in its massing and façade design, which are informed by sun path and orientation.

Assemble a puzzle featuring the dramatic cantilevers of VLEST at While you’re at it, read the rest of the story about this stunning new energy research lab at

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