The video introduces the concept of a 3D or 3-dimensional environment, which is a computer-controlled digital setting designed to mimic the physical world in media. This section serves as a continuation of previous topics discussed in part one of the series.

Films are highlighted as common examples of media incorporating 3D. The 2009 film 'Avatar' by James Cameron is mentioned for its critical acclaim and popularity, showcasing early 3D cinematic achievements. The Korean film 'Space Sweepers' is also presented as a good example, noted for its realistic visual effects achieved using the Unreal Engine, a powerful real-time 3D creation platform.

The discussion moves to 3D printers, which design and build 3D models directly from computer-aided design software. Initially, 3D printers were used in architecture, design, and 3D art, but their applications have rapidly expanded across various societal sectors. The video also touches on the potential future impact of 3D printers in medicine, particularly for creating functional 3D organs using organic matter.

Holograms are introduced as three-dimensional images formed by the interference of light beams from a laser or other coherent light source. They are presented as the latest medium for displaying 3D visualizations, useful across industries like military, retail, and medicine, with potential to become a primary tool for visualization in various fields, including learning environments.

Ubiquitous learning, or 'u-learning', is explained as leveraging digital content, physical surroundings, mobile devices, and wireless communication to deliver educational experiences anytime, anywhere, and in any way. The COVID-19 pandemic is cited as a period when many students experienced distance learning using mobile technologies outside traditional classroom settings, thus already engaging with aspects of ubiquitous learning.

The key characteristics of ubiquitous learning are outlined: adaptability, permanency, accessibility, immediacy, interactivity, and situating of instructional activities. These characteristics emphasize learning without the constraints of classroom walls or strict schedules, allowing continuous learning, access to data anytime and anywhere, and interaction with others. The video notes that some schools in the Philippines are already implementing ubiquitous learning.

The video concludes by inviting viewers to ponder the future of media innovation and thanking them for watching, indicating that this lecture is part of Media and Information Literacy for senior high school students.