Using the room itself, as a monochromatic backdrop for decor allows you to paint darker. It envelops you in color, says interior designer Garrison Hullinger. With no separation between wall and ceiling, it is easier on the eye.. Treff LaFleche also advocates using deep colors. In the absence of contrast between trim and wall, the stronger colors appear lighter and softer..
In electronics, it isusually used for plotting antenna directional patterns.TACAN is a polar-coordinate type radio air-navigation system that provides an aircrew withdistance information, from distance measuringequipment (DME), and bearing (azimuth)information.
Differences between VOR/DME and TACAN include: TACAN uses UHF (VOR uses VHF) to increase bearing determination accuracy; a single frequency for range and bearing (VOR/DME uses two frequencies); two small rotating drums with parasitic antenna elements (VOR uses a large circular array of antennas).