Log into your OpenAI account and find the "API Keys" or "Credentials" section. It’s usually somewhere in your profile ...

See if you can determine when these words first appeared in print, per the Oxford English Dictionary, in the quiz below. If dating words seems like a daunting task, it was.

In this paper, a Luneburg lens antenna with continuously variable dielectric constant is designed and manufactured by using 3D printing technology, which operates at 24 GHz with a maximum gain of 18.1 ...