These smart rocks, engineered by a team of Missouri S&T researchers, are embedded at a bridge’s foundation, beneath the surface, to gauge for damage ahead of a dangerous collapse.

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Tool Tests

Tool Test: Hitachi Triple Hammer Impact Driver

Did adding a third anvil increase driving speed, beats per minute, and torque, all...

Field Tested: The Martinez M1 Titanium-Handled Hammers

Mark Martinez, the inventor of the Stiletto TiBone, has a new hammer out, and as...

Ryobi P305 18v Cordless Hot Glue Gun

Contributor Brian Way provides an unbiased review on a cordless glue gun from...

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