Unsend email, TV fire hazards, scouring Apple TV+ and more: Tech Q&A How to unsend email, TV fire hazards, Apple TV+ and much more in this week’s Tech Q&A.

Geminid Meteors over Chile

Are meteors streaming out from a point in the sky? Yes, in a way. When the Earth crosses a stream of Sun-orbiting meteors, these meteors appear to come from the direction of the stream — with the directional point called the radiant.  An example occurs every mid-December for the Geminids meteor shower, as apparent in…

4 ways to get cash back on Amazon For many of us, “holiday shopping” has become “searching Amazon.” Wish lists and automated suggestions make gift-giving a carefree experience. You can conceivably find presents for all your loved ones without stepping outside.