Abstract: Angular momenta of electromagnetic waves are important both in concepts and applications. In this work, we systematically discuss two types of angular momenta, i.e., spin angular momentum ...

This concept isn’t new—in fact, it is the essence of representational state transfer (REST). Instead of converting to a ...

A monthly overview of things you need to know as an architect or aspiring architect. Unlock the full InfoQ experience by logging in! Stay updated with your favorite authors and topics, engage with ...

Free radicals have a terrible reputation. These reactive and unstable molecules have been associated with cancer, aging, and degenerative diseases such as Alzheimer's. Yet the body constantly produces ...

Adam Hayes, Ph.D., CFA, is a financial writer with 15+ years Wall Street experience as a derivatives trader. Besides his extensive derivative trading expertise, Adam is an expert in economics and ...

In the video above, you’ll meet Penny, a shelter dog struggling to get adopted due to her kennel reactivity. When people walk by, she barks and lunges—making it hard for potential adopters to see her ...