Some stage of assembly/disassembley.
Not familiar with an atomic rifle. There have been artillery pieces that can fire an atomic shell, but not a rifle.
The kings and queens represent royalty, as the names of the pieces suggests. The bishops represent the Church and its leaders. Knights represent knights or warriors, and rooks represent castles or other strongholds. Lastly, the pawns represent the serfs or the collective poor.
If both pieces have the correct 20mm weaver rail, yes it will mount fine.
Somewhere I had heard that the tassels represent prepared rifle loads that were carried for hunting and battle.
A board game piece represents a person who is playing the game (in a game such as Monopoly). Chess pieces are a bit different, they represent soldiers or leaders in a war being played out on the board. In Risk, pieces represent military units, such as battalions. Different games have different designs.
Magnification, Distance, Objective size, etc..
Little white pieces of cloth; cleaning patches. They can be square or circular.
scherzo A lively movement, commonly in 3/4 time, introduced as a replacement for a minuet in pieces with multiple movements.
cheese and baked waffles with chopped pieces of bacon and diomands
Pieces of something that are smaller than the whole thing.
6-24 magnification, 50 mm lens
The denominator is the bottom number. It represents how many parts the whole has been evenly split into. The numerator is the top number. It represents how many of those pieces we have. For instance, if you have 3/5 of a cake. This shows the cake has been split into 5 pieces, of which you have 3.