Roman beliefs about an afterlife varied, and are known mostly for the educated elite who expressed their views in terms of their chosen philosophy. The traditional care of the dead, however, and the perpetuation after death of their status in life were part of the most archaic practices of Roman religion. Ancient votive deposits to the noble dead of Latium and Rome suggest elaborate and costly funeral offerings and banquets in the company of the deceased, an expectation of afterlife and their association with the gods. As Roman society developed, its Republican nobility tended to invest less in spectacular funerals and extravagant housing for their dead, and more on monumental endowments to the community, such as the donation of a temple or public building whose donor was commemorated by his statue and inscribed name. Persons of low or negligible status might receive simple burial, with such grave goods as relatives could afford.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): From what source does information of Roman thought about the afterlife come?
Ah, so.. educated elite

Mastic asphalt is a type of asphalt which differs from dense graded asphalt (asphalt concrete) in that it has a higher asphalt/bitumen (binder) content, usually around 710% of the whole aggregate mix, as opposed to rolled asphalt concrete, which has only around 5% added asphalt/bitumen. This thermoplastic substance is widely used in the building industry for waterproofing flat roofs and tanking underground. Mastic asphalt is heated to a temperature of 210 C (410 F) and is spread in layers to form an impervious barrier about 20 millimeters (0.79 inches) thick.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): What percentage of concrete is in mastic asphalt?
Ah, so.. unanswerable

In manufacturing the glass bulb, a type of "ribbon machine" is used. A continuous ribbon of glass is passed along a conveyor belt, heated in a furnace, and then blown by precisely aligned air nozzles through holes in the conveyor belt into molds. Thus the glass bulbs are created. After the bulbs are blown, and cooled, they are cut off the ribbon machine; a typical machine of this sort produces 50,000 bulbs per hour. The filament and its supports are assembled on a glass stem, which is fused to the bulb. The air is pumped out of the bulb, and the evacuation tube in the stem press is sealed by a flame. The bulb is then inserted into the lamp base, and the whole assembly tested.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): What type of machine manufactures glass light bulbs.
Ah, so..
ribbon machine