Monthly Archives: August 2016


Inner workings of a cell tower 723

A cell tower is a pylon rising up in the air that holds communication and data devices of the telecommunication industries. At its base is the service providers equipment shelter better known as BTS that houses radio transmitters and receivers that allow communication between the phones and tower. The radio […]


Aircraft Pressurization 601

Pressurization is the process of increasing air pressure inside an aircraft specifically the cabin. This is done due to reduce trapped gas, decompression sickness & hypoxia which is a condition of insufficient oxygen. An aircraft flies in high altitudes because it consumes less fuel due to low turbulence, it also […]


Electromagnetic Spectrum 726

The electromagnetic spectrum has a range of magnetic signals that encompass all frequencies in electrical and electronic systems. the frequencies include Extremely low frequency (E.L.F) @ 3-30Hz – this include alternating current power line frequencies, submarine communication and all frequencies under human audio range. Super low frequency (S.L.F) @ 30-300Hz […]


Types of dredging vessels 489

Dredging is the digging or pulling out of material in the sea or ocean in order to deepen waterways, make harbours, berths, docks, desilt lakes & clear river entry e.t.c. Dredging can be classified into two :- Mechanical dredging Hydraulic dredging TYPES OF DREDGERS Trailer Suction Hopper Dredgers -itis a […]


manual transmission 965

The manual transmission is one complex machinery. it contains so many meshed gears and is also known as the gearbox. well is there a way to learn it all in a simple way? I’ll elaborate :-   Above we see a simple diagram of an engine coupled to a gearbox […]