Everyday Engineering: Understanding the Marvels of Daily Life

Begin by considering how engineering and technology influence your daily life - not just high-tech devices but also ordinary machines, buildings, and infrastructure that most people take for granted. In this series, you will learn to notice and understand these overlooked marvels.

In the first of four segments on your house as a technological system, review the eight engineered subsystems that go into modern dwellings. Then discover the miracle of building codes, which ensure that every new house is safe, constructible, and reasonably economical without involving an engineer in each design.

Examine one of the most important aspects of modern building codes: the design of a house for structural load carrying. Focus on two of the three major approaches to this crucial function: bearing wall construction and heavy timber frame construction. Both have been used for thousands of years.

Turn to the third major technique for building a house: platform-framed construction, which is a flexible arrangement of lightweight modular floor platforms, wall panels, and roof trusses. This efficient approach has been widely used in the U.S. for over a century.

Now that your house is framed, it needs a building envelope that can shed rainwater and melting snow, and also keep precipitation from entering through the foundation. Learn about the five integrated layers of protection: shingles and cladding, drainage plane, insulation, vapor barrier, and drywall.

What happens to the precipitation that falls on your house, your lot, and your neighbors' properties? Study the problem of site design, focusing on how storm runoff is directed away from homes and returned to a natural watercourse, without causing flooding along the way.