A constant-fraction discriminator solves this by triggering at a constant fraction of the signal pulse, and [Michael Wiebusch] recently presented a hacker-friendly implementation of the design ...

A constant-fraction discriminator solves this by triggering at a constant fraction of the signal pulse, and [Michael Wiebusch] recently presented a hacker-friendly implementation of the design ...

And researchers have been puzzled by the fact that the two main ways to measure cosmic expansion give different values for the rate, which is called the Hubble constant. This discrepancy has ...