This puzzle is known as the problem of time, and it remains one of the most persistent obstacles to a unified theory of ...

Time feels like the most basic feature of reality. Seconds tick, days pass and everything from planetary motion to human memory seems to unfold along a single, irreversible direction. We are born and ...

Intrinsic neural attractors and extrinsic environmental inputs jointly steer the dynamic trajectories of brain activity ...

The way time ticks forward in our universe has long stumped physicists. Now, a new set of tools from entangled atoms to black ...

Nvidia DLSS 4.5 arrives with a new transformer model promising better image quality, but not without performance trade-offs. We test DLSS 4.5 vs DLSS 4 to see ...

Abstract: The transfer alignment algorithm is a key technology for the prelaunch attitude initialization of shipborne drones. The estimation results of the traditional filter-based transfer alignment ...

This week the company announced that it would require users to undergo an A.I.-powered age estimation process in order to chat with others on the platform. Will this change reassure parents? By Kevin ...

Time dilation means two observers may experience the same events years apart, revealing there is no universal “now.” Why China moved so quickly to execute 11 members of a notorious mafia family I test ...

In 1979, five months after my seventh birthday, my father crashed his plane into an orange grove and died. Dad, a pilot, had gone up in one of his twin-props with a friend and lost control after some ...

DEAR MISS MANNERS: A relative of mine died suddenly in her apartment. She lived alone, and sadly it was several days before she was found, along with her dog (who is doing fine). The person who ...

When I first drafted this piece, the first line originally included a preface to suggest that what I was to discuss here is a continuation or extension of sorts of a recent piece I wrote, probably ...