Abstract: We have implemented a light-detection and ranging (LiDAR) system using a single-chip solid-state beam scanner and demonstrated 20-m ranging and imaging operation. The beam scanner is ...

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These Holocaust lesson plans introduce key concepts and information to middle school and high school students. Grounded in historical context, the lessons utilize primary source materials from the ...

Thomas Becket was Archbishop of Canterbury, the most important bishop in England. In 1170, he was brutally murdered in Canterbury Cathedral. Historians have long debated whether his murder was on the ...

When William conquered England, he had a limited knowledge of people’s wealth and property in the country. He was concerned about potential invasions and attacks from enemies, and needed to raise ...