| Three minutes later, a machine that detects trace explosives showed a positive reading for Semtex, a volatile plastic explosive. |
| If it detects an abnormally rapid heartbeat, it sends an electrical surge to a defibrillator coil and jolts the heart back into a normal rhythm. |
| In the Amazon, a Waorani hunter detects the scent of animal urine at forty paces and identifies the species that deposited it. |
| A small sensor, the accelerometer, placed nearby then detects the sound waves and analyses their acoustic signature. |
| But he also detects the familiar, steely resolve of a Chancellor who is convinced that they will be borne out. |
| If an authentic medium detects a spirit that is present, they will try and convince it to move on. |
