To solve this problem, an extraction method of three-dimensional micro-motion parameters is proposed based on monostatic radar. Firstly, a new nutation observation model is proposed, and the frequency ...

Schrödinger’s equation is the mathematical model at the heart of quantum mechanics. Although we can use Newton's second law to understand the behavior of a baseball or the moon orbiting the ...

A 33-foot-long object discovered orbiting Earth last year may have local origins, according to astronomers who believe the small asteroid may have come from a surprising place: the surface of the Moon ...

Such a climatic evolution had considerable effects on the ecosystem and the organisms inhabiting it, with many large mammals going extinct and others experiencing reductions in body size.

It didn’t take long for the 35-year-old singer to display a major shift in body language, and it’s only getting better with time. Over the weekend, Swift visited Arrowhead Stadium to watch her ...