Q's of the order of 10 8 are theoretically achievable in loops with radii ranging from 0.04 to 1 mm, if the percentage refractive index difference ... significant than radiation loss resulting from ...

Sometimes the refractive index of the air is such that the radar beam ... display the rainfall echoes from clouds approximately 3000m above the ground. Due to the curvature of the earth, the radar ...

The phase and the group velocity of light propagating in conventional optical media cannot exceed the speed of light in ...

A new study demonstrates that certain incised stone artifacts from the Levantine Middle Paleolithic, specifically from Manot, Qafzeh, and Quneitra caves, were deliberately engraved with geometric ...

Modern lifestyles, frequent prescription updates, and continuous lens enhancements drive Japan's spectacle lens market, promoting specialized designs ...

Y&R’s Melody Thomas Scott Promises Nikki’s Nightmare Isn’t Over Jan 11, 2024 The Young and the Restless Y&R’s Lauralee Bell, Michael Damian, and Michelle Stafford Are Back at it Again! Oct ...

A superconducting state can be induced in a twisted carbon-based material, but it can’t be described with conventional theory. A technique using high-frequency circuits could reveal the ...

U.S. President Donald Trump’s sweeping 25% tariffs on Canada could have been “devastating” to newspapers, especially community publications in small towns.