Question: In physics, Whitehead's thought has had some influence. He articulated a view that might perhaps be regarded as dual to Einstein's general relativity, see Whitehead's theory of gravitation. It has been severely criticized. Yutaka Tanaka, who suggests that the gravitational constant disagrees with experimental findings, proposes that Einstein's work does not actually refute Whitehead's formulation. Whitehead's view has now been rendered obsolete, with the discovery of gravitational waves. They are phenonena observed locally that largely violate the kind of local flatness of space that Whitehead assumes. Consequently, Whitehead's cosmology must be regarded as a local approximation, and his assumption of a uniform spatio-temporal geometry, Minkowskian in particular, as an often-locally-adequate approximation. An exact replacement of Whitehead's cosmology would need to admit a Riemannian geometry. Also, although Whitehead himself gave only secondary consideration to quantum theory, his metaphysics of processes has proved attractive to some physicists in that field. Henry Stapp and David Bohm are among those whose work has been influenced by Whitehead.
Is there an answer to this question: What are gravitational waves?

Answer: phenonena observed locally that largely violate the kind of local flatness of space that Whitehead assumes

Question: The spectrum emitted by a blackbody radiator at temperatures of incandescent bulbs does not match the sensitivity characteristics of the human eye; the light emitted does not appear white, and most is not in the range of wavelengths at which the eye is most sensitive. Tungsten filaments radiate mostly infrared radiation at temperatures where they remain solid below 3,695 K (3,422 C; 6,191 F). Donald L. Klipstein explains it this way: "An ideal thermal radiator produces visible light most efficiently at temperatures around 6,300 C (6,600 K; 11,400 F). Even at this high temperature, a lot of the radiation is either infrared or ultraviolet, and the theoretical luminous efficacy (LER) is 95 lumens per watt." No known material can be used as a filament at this ideal temperature, which is hotter than the sun's surface. An upper limit for incandescent lamp luminous efficacy (LER) is around 52 lumens per watt, the theoretical value emitted by tungsten at its melting point.
Is there an answer to this question: What is the lower limit for LER of an incandescent lamp?

Answer: unanswerable

Question: The dismal results caused Gephardt to drop out and later endorse Kerry. Carol Moseley Braun also dropped out, endorsing Howard Dean. Besides the impact of coming in third, Dean was further hurt by a speech he gave at a post-caucus rally. Dean was shouting over the cheers of his enthusiastic audience, but the crowd noise was being filtered out by his unidirectional microphone, leaving only his full-throated exhortations audible to the television viewers. To those at home, he seemed to raise his voice out of sheer emotion. The incessant replaying of the "Dean Scream" by the press became a debate on the topic of whether Dean was the victim of media bias. The scream scene was shown approximately 633 times by cable and broadcast news networks in just four days following the incident, a number that does not include talk shows and local news broadcasts. However, those who were in the actual audience that day insist that they were not aware of the infamous "scream" until they returned to their hotel rooms and saw it on TV.
Is there an answer to this question: What place in the race was Braun?

Answer: unanswerable

Question: Africa separated from Antarctica in the Jurassic, around 160 Ma, followed by the Indian subcontinent in the early Cretaceous (about 125 Ma). By the end of the Cretaceous, about 66 Ma, Antarctica (then connected to Australia) still had a subtropical climate and flora, complete with a marsupial fauna. In the Eocene epoch, about 40 Ma Australia-New Guinea separated from Antarctica, so that latitudinal currents could isolate Antarctica from Australia, and the first ice began to appear. During the EoceneOligocene extinction event about 34 million years ago, CO2 levels have been found to be about 760 ppm and had been decreasing from earlier levels in the thousands of ppm.
Is there an answer to this question: After the division from Australia, what began to appear?

Answer:
ice