Squaring the circle: the areas of this square and this circle are both equal to Ï. In 1882, it was proven that this figure cannot be constructed in a finite number of steps with an idealized compass and straightedge.
Not to be confused with Cloud top. In aviation, ceiling is a measurement of the cloud base height relative to the ground. Ceiling is reported as part of the METAR (METeorological Aviation Report) used for flight planning by pilots worldwide. A ceiling listed as unlimited means either that the sky is mostly free of cloud cover, or that the cloud is high enough not to impede Visual Flight Rules (VFR) operation. In a METAR, the lowest BKN or OVC layer specifies the cloud ceiling.
Lighting is one of the most important design elements in a home. A variety of ceiling light styles are available and they are often part of lighting collections with coordinating wall sconces and lamps. Tip: Diagram your rooms and create a lighting plan for each, including ambient, task and accent lighting.