WHAT DOES LIGHTWEIGHT INFRARED SCOPE MEAN?

The ThOR 4 ATN thermal graphic scope also comes equipped which has a variable zoom of 1.25x to 5x along with a 19mm goal lens. That is a compact-sized thermal scope that won't weigh you down if you find yourself taking your goal.Other science devices on board Chandra are two transmission gratings, an advanced CCD imaging spectrometer, plus a large-