tracks

Modern airplanes have two black boxes: a voice recorder, which tracks pilots' conversations,and a flight-data recorder, which monitors fuel levels, engine noises and other operating functions that help investigators reconstruct the aircraft's final moments.

The train was coming around the corner as I lifted the baby from the tracks.

The wind blew the baby onto the tracks.

The music service This Is My Jam helps people navigate the tens of millions of tracks now available instantly via Spotify and iTunes.

Journalist Sarah Scoles reports that NASA currently tracks about 24,000 objects in space, and in 2016 the air Force had to issue 3,995,874 warnings to satellite owners alerting them to a potential nearby threat from another satellite or bit of debris.

But unlike most collectors, Zac tracks down the medals' rightful owners, and returns them.

He followed his tracks and returned to the snow cave, because without shelter, he could die that night.

Others absorb light, stopping it dead in its tracks.

The evening walk was a time to shake off the day's upsets and let the worry tracks in my head go to white noise.

But brain researchers have discovered that when we consciously develop new habits, we create parallel paths, and even entirely new brain cells, that can jump our trains of thought onto new, innovative tracks.

For example, even in dense forest, you should be able to spot gaps in the tree line due to roads, train tracks, and other paths people carve through the woods.

Trail blazes, tire tracks, and other features can lead you to civilization.