Calculator

src: img5.supplybasics.com An electronic calculator is typically a portable electronic device used to perform calculations, ranging from ba...

Shot clock

src: www.mattnorman.com A shot clock is used in some sports to quicken the pace of the game. It is normally associated with basketball, but...

Reveille

src: pbs.twimg.com " Reveille " ( US: REV -?-lee ; UK: r?- VAL -ee ) is a bugle call, trumpet call or pipes call most often as...

Conservation and restoration of clocks

src: www.smithofderby.com The conservation and restoration of clocks refers to the care given to a clock to either prevent or resolve issue...