Make sure your angles are in units of radians (not degrees), where 2π radians = 360 degrees. But after that you will get the value of R (the radius of Earth) in the same units that you measured the ...

A recent study published in the journal Cryptologia presents what its author calls the Naibbe cipher, a manual substitution ...

My husband and I are in our late 40s, and for the last several months, he has developed an obsession that is starting to ...

Controlling qubits with quantum superpositions allows them to dramatically violate a fundamental limit and encode information ...

Deep vertical holes and re-entrant features challenge the best metrology methods.

A precision voltage divider produces a specific fraction of its input voltage using carefully matched resistive components.

Robert Kelly is managing director of XTS Energy LLC, and has more than three decades of experience as a business executive. He is a professor of economics and has raised more than $4.5 billion in ...

No matter where Taylor Swift goes, all eyes are on her. Whether it’s on the red carpet or out and about, people take note. They take note of her clothes, of any Easter eggs….you get the idea. But ...

Radio over fiber transports RF signals via optical fiber, enabling low-loss distribution for wireless networks, radar systems, and radio astronomy applications.