Deep Installation Method for Three-Component Seismic Sensors

Successful sensor installation is important, as it directly affects how the sensor will perform. If conducted incorrectly, it could seriously degrade the data received and...

NASA Miniaturizes Century-Old Radio Sounder Technology

A century-old technology that scientists use to probe the ionosphere — the important atmospheric layer that can interfere with the transmission of radio waves — is getting...

Terrain Model as an Interface for Real-Time Vehicle Dynamics Simulations

In order to enable off-road vehicle dynamics analysis simulations when traveling on soft soil, a deformable Vehicle Terrain Interface (VTI) model that interfaces with...

Portable Data Recorder for Measuring Sand Grain Fracture After Blasts

Abullet cannot penetrate through a sandbag while an arrow can, so understanding the behavior of granular materials such as sand and its energy absorption in a blast is...

Modeling Supports Energy-Saving Microwave Technologies

During the Apollo Program, astronauts on the Moon encountered a small menace that created big problems: lunar dust. Similar to how tiny bits of Styrofoam behave on Earth — adhering to...

Telescoping Poles

U.S. Army and Marine troops have cultivated a creative, lifesaving technology out of heavy-duty telescoping poles. The CMD fiberglass telescoping push/pull rods, normally used for cable and wire management applications,...

How Digital “Sand Tables” Will Guide Future Military Strategy

Throughout history, the use of sand tables has been common practice in rehearsing military strategy in the field. Built on piles of sand with scale models of operational...

Microwave Radiometers Help Keep Aircraft Safe From Icing

One of the greatest dangers to aircraft — playing a role in numerous destructive and fatal accidents around the world — comes in the form of droplets of water. In clean air, cloud...

Fire Resistance of Geopolymer Concretes

Geopolymer concrete has been proposed as an alternative to Portland cement concrete in applications requiring high degrees of fire resistance, because the intrinsic chemistry of the geopolymer binder...

Ground-Penetrating Radar

AFRL engineers used prototypes of recently developed ground-penetrating radar (GPR) and electronic cone penetrometer (ECP) devices to determine whether voids and anomalies in a particular airfield's subsoil were...