21.  The town then passed a law allowing sound levels to be averaged by measuring quiet time between races.

22.  They measured time and studied astronomy.

23.  Time is measured in layers of paint, linoleum, makeup, social events, weeds, snow, garbage and sand.

24.  Time is measured on the military clock.

25.  Using paintings, documents and artifacts from around the world, it will show the ways that time has been measured.

26.  When a person is performing several tasks at once and needs to measure time, spiny neurons parcel out the tasks, Meck said.

27.  While ancient cultures felt reassured by their respective myths of creation, they nonetheless seemed eager to measure time as a way of controlling it.

28.  Who knew Glickenhaus measured time with a stopwatch rather than a calendar.

29.  A sensor is built into the baseball that measures time from the moment the ball is released until it is caught, Black said.

30.  And because they are written on memo paper, enclosed in envelopes never sent through the mail, there are no postmarks to measure passing time.