Comet Shoemaker–Levy 9 compute the density and size of Shoemaker–Levy 9. Its average density was calculated to be about ; the breakup of a much less dense comet would not have resembled the observed string of objects. The size of the parent comet was calculated to be about in diameter. These predictions were among the few that were actually confirmed by subsequent observation. One of the surprises of the impacts was the small amount of water revealed compared to prior predictions. Before the impact, models of Jupiter's atmosphere had indicated that the break-up of the largest fragments would occur at atmospheric pressures of
Social media and television a sign of superficiality." Interactive media such as Amazon's Alexa and Apple's Siri have enabled computers to interact with people in human-like ways. "Computers, in the way that they communicate, instruct and take turns interacting, are close enough to humans that they encourage social responses. The encouragement is necessary for such a reaction need not be much. As long as there are some behaviors that suggest a social presence, people will respond accordingly." The exponential growth in the number of social media users between 2006 and 2016 has impacted how television shows are marketed. As well, the huge increase in