What color is a tennis ball?

Tennis balls are funny. I mean, if you ask people to pick their best example of green and blue and red and orange and yellow ...

In Vienna and Beijing, the First Nuclear Clocks Begin to Tick

By measuring the squishing and unsquishing of thorium-229 nuclei, two teams created a new type of clock that could someday ...

First-Class Land Special Radio Operator Mock Exam Collection: 180 Questions (with Explanations)

This is a mock exam collection containing 180 original questions created as preparation for the First-Class Land Special ...

Watching this 3D Blu-ray was certainly an experience

For a moment so iconic, it's always funny to come back to this one and realize that it was filmed with 3D in mind. I'm not ...

4 DVDs to upgrade to 4K UHD sooner rather than later

These are DVDs you should upgrade as soon as you can.

How the hydrated minerals of Atira were estimated—methods of supplementing spectroscopy with photometry, and their limitations

Even if absorption is visible in an asteroid's spectrum, the shape does not necessarily represent the intrinsic properties of ...
Morning Overview on MSN

A Singapore clock is right to 19 decimal places and may redefine the second

At the National University of Singapore, one charged lutetium atom held in a trap now keeps time with a fractional ...

Bodkin Design Harnesses Spectral Sensing for Naval Reconnaissance

Bodkin Design & Engineering (BD&E) has been selected for award of a Small Business Innovation Research (SBIR) contract ...
Microwaves & RF

Evolving Antenna Requirements for LEO and MEO

Explore how LEO and MEO constellations are driving new approaches to antenna design, from phased arrays and hybrid ...