Fishing float

src: img.weiku.com A fishing float (or bobber in the US) is an item of angling equipment. Usually attached to a fishing line, it can serve...

Steam drum

src: s-media-cache-ak0.pinimg.com A steam drum is a standard feature of a water-tube boiler. It is a reservoir of water/steam at the top en...

Spirit level

src: upload.wikimedia.org A spirit level , bubble level or simply a level is an instrument designed to indicate whether a surface is horiz...

Honda Wave series

src: upload.wikimedia.org The Honda Wave - also marketed as the Honda NF series (codename), Honda Innova in Europe, and Honda Supra in I...

Universal indicator

src: upload.wikimedia.org A universal indicator is a pH indicator composed of a solution of several compounds that exhibits several smooth ...

ESFJ

src: i.ytimg.com ESFJ (Extraversion, Sensing, Feeling, Judgment) is an abbreviation used in the publications of the Myers-Briggs Type Indic...

Light-emitting diode

src: thumbs.dreamstime.com A light-emitting diode ( LED ) is a two-lead semiconductor light source. It is a p-n junction diode that emits l...