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 ...

Decorative ceramics exist at the intersection of where art meets everyday life. From sleek, minimalist vases to hand-painted bowls bursting with color, these pieces add personality and texture to any ...

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When I define a signal-based form, I want to be able to provide default values for the form or form fields that are applied if the provided value is undefined. For instance when I want to attach a mat ...

Ethereum price has plunged into a bear market after falling by over 20% from its highest point this year as cryptocurrencies retreated. Ethereum (ETH) token was trading at $3,895 on Nov. 2, up by 178% ...

The dirty() method on signal form controls always returns false even when field values have been changed from their initial state. According to standard form behavior, dirty should be true when the ...

We live in a culture that constantly bombards us with inducements to buy, to accumulate stuff. But when it comes to clothes, no matter how full our closets are, we can often be heard to wail, "I have ...

Bob Dylan‘s next release won’t be new music — it’ll be a book of drawings. On Tuesday, Simon & Schuster announced that it will publish Dylan’s book Point Blank (Quick Studies), a collection of ...

Royalty-free licenses let you pay once to use copyrighted images and video clips in personal and commercial projects on an ongoing basis without requiring additional payments each time you use that ...