Rena Marie Pacella

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Inside a CAVE

By Rena Marie Pacella / Feb 12, 2008

Pedal-powered Panzer

By Rena Marie Pacella / Oct 3, 2008

Steaming Down the Road

By Rena Marie Pacella / Oct 28, 2008

Half boat, half car, all adventure

By Rena Marie Pacella / Jun 9, 2008

The Natural Artificial Foot

By Rena Marie Pacella / May 13, 2008

A Homebuilt Tumor-Killer

By Rena Marie Pacella / May 13, 2008

Extreme Engineering: A Tunnel Through The Alps

By Rena Marie Pacella / Feb 25, 2009

Extreme Engineering: The Deepest Oil Well

By Rena Marie Pacella / Feb 25, 2009

Extreme Engineering: A Bridge Built On Quicksand

By Rena Marie Pacella / Feb 25, 2009

Extreme Engineering: A City Beneath A City

By Rena Marie Pacella / Feb 25, 2009