Lasers and drones assess health of world forests and help track climate change

Highly detailed 3D scans of dense tropical rain forest plots are enabling precise estimates of tree structure, volume and ...

42 years of measuring the sun, the Earth and the energy in between

On Jan. 31, 1958, Explorer 1 became the first satellite launched by the United States. Its primary science instrument, a ...
Electronic Design

Laser, Radar, Comb, and Enhanced Atoms Yield Precise THz Measurement

The challenges of terahertz-band components and frequency measurement. How a sophisticated combination of optical and electronic components representing advanced principles are being used to measure ...

I can use this laser tape measure in places I didn't think possible (and it's on sale)

The Xtape1 is a very different take on the laser tape measure. This one has a laser, yes (three, actually, a red one is used for measuring, and two green aligning beams) that's good out to 330 feet ...