500-year-old Leaning Tower of Pisa mystery unveiled by engineers

Why has the Leaning Tower of Pisa survived the strong earthquakes that have hit the region since the middle ages? This is a long-standing question a research group of 16 engineers has investigated, including a leading expert ...

Creature's 'dactyl club' filters shear waves to resist damage

The "smasher" peacock mantis shrimp is able to repeatedly pummel the shells of prey using a bizarre hammer-like appendage that, new research shows, can withstand rapid-fire blows by neutralizing certain frequencies of "shear ...

Self-folding structure could slash energy use in buildings

Princeton student Denisa Buzatu's vision for an environmentally sustainable building is a sort of shape-shifting origami façade. For her senior thesis, Buzatu, a civil and environmental engineering major, is designing and ...

Natural nanocrystals shown to strengthen concrete

Cellulose nanocrystals derived from industrial byproducts have been shown to increase the strength of concrete, representing a potential renewable additive to improve the ubiquitous construction material.

Study finds Midwest flooding more frequent

The U.S. Midwest and surrounding states have endured increasingly more frequent flood episodes over the past half-century, according to a study from the University of Iowa.

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