To improve the efficiency of the lamp, the filament usually consists of multiple coils of coiled fine wire, also known as a 'coiled coil'. For a 60-watt 120-volt lamp, the uncoiled length of the tungsten filament is usually 22.8 inches (580 mm), and the filament diameter is 0.0018 inches (0.046 mm). The advantage of the coiled coil is that evaporation of the tungsten filament is at the rate of a tungsten cylinder having a diameter equal to that of the coiled coil. The coiled-coil filament evaporates more slowly than a straight filament of the same surface area and light-emitting power. As a result, the filament can then run hotter, which results in a more efficient light source, while reducing the evaporation so that the filament will last longer than a straight filament at the same temperature.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): What did not improve efficiency of the lamp?
Ah, so.. unanswerable

On April 8, 2005, a partnership led by Comcast and Sony Pictures Entertainment finalized a deal to acquire MGM and its affiliate studio, United Artists, and create an additional outlet to carry MGM/UA's material for cable and Internet distribution. On October 31, 2005, Comcast officially announced that it had acquired Susquehanna Communications a South Central Pennsylvania, -based cable television and broadband services provider and unit of the former Susquehanna Pfaltzgraff company, for $775 million cash. In this deal Comcast acquired approximately 230,000 basic cable customers, 71,000 digital cable customers, and 86,000 high-speed Internet customers. Comcast previously owned approximately 30 percent of Susquehanna Communications through affiliate company Lenfest. In December 2005, Comcast announced the creation of Comcast Interactive Media, a new division focused on online media.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): How much did Comcast purchase MGM for?
Ah, so.. unanswerable

Investitures, which include the conferring of knighthoods by dubbing with a sword, and other awards take place in the palace's Ballroom, built in 1854. At 36.6 m (120 ft) long, 18 m (59 ft) wide and 13.5 m (44 ft) high, it is the largest room in the palace. It has replaced the throne room in importance and use. During investitures, the Queen stands on the throne dais beneath a giant, domed velvet canopy, known as a shamiana or a baldachin, that was used at the Delhi Durbar in 1911. A military band plays in the musicians' gallery as award recipients approach the Queen and receive their honours, watched by their families and friends.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): Where do Investitures never take place?
Ah, so..
unanswerable