Ep 17. Can Space Be Infinitely Divided?

PBS Space Time is a popular science series that explores the mysteries of the universe and aims to answer some of the biggest questions relating to space and the cosmos. In the latest episode of the series, titled “Can Space Be Infinitely Divided?”, the show’s presenters dive into the fascinating topic of the nature of space and explore whether it is possible for space to be infinitely divided into smaller and smaller regions.

The episode starts by examining the concept of the Planck length - the smallest possible length that can physically exist in our universe. Planck length is a fundamental constant of nature and is believed to be the smallest possible size that can physically exist in space. However, this raises the intriguing question of whether there is a smallest possible distance between two objects or whether space can be divided infinitely.

The presenters then explore the concept of space-time, which is a fundamental concept in modern physics that suggests that space and time are not separate, but are part of a single entity. They explain how space is not just an empty container but rather a physical entity that can be stretched and warped. It is this stretching and warping of space-time that creates gravity, which is one of the four fundamental forces of nature.

The show’s presenters also discuss the concept of quantum mechanics, which is a branch of physics that deals with the behavior of particles at the subatomic level. They explain how the principles of quantum mechanics suggest that space may not be continuous but rather a discrete, quantized entity, with tiny units of space separated by gaps.

The episode also delves into the fascinating idea of fractals, which are complex geometric patterns that repeat themselves on smaller and smaller scales. The presenters explain how the concept of self-similarity in fractals suggests that space could be infinitely divided into smaller and smaller regions, without ever reaching a limit.

Throughout the episode, the presenters use a range of visual aids, including computer-generated models, animations, and analogies, to make the complex concepts of physics more accessible to the viewer. They also interview experts in the field, including physicists and mathematicians, to provide further insight and depth into the topic.

Overall, “Can Space Be Infinitely Divided?” is a thought-provoking and informative episode that explores one of the most fundamental questions in physics. The show’s presenters provide a clear and accessible explanation of complex concepts that will appeal to both science enthusiasts and newcomers alike. The episode offers a fascinating glimpse into the complexities of the universe and will leave viewers with a new appreciation for the intricacies of space and time.