Ep 3. How to Build a Force Field

In this episode of Sci Fi Science, titled "How to Build a Force Field", host Dr. Michio Kaku explores the possibility of creating a force field, a staple of science fiction that could potentially protect astronauts and spaceships from dangerous radiation in space.

Kaku starts by discussing the science behind force fields, explaining that they are created by generating a magnetic field around an object. He then interviews experts in the field who are working on creating real-life force fields, including scientists at NASA's Langley Research Center.

In order to create a force field, Kaku explains that powerful magnets would be needed to generate a strong magnetic field. He demonstrates this by showing the power of a neodymium magnet, which can lift up to 1,000 times its own weight. However, Kaku also acknowledges that the materials and energy needed to generate a strong enough magnetic field for a force field are currently cost-prohibitive.

To overcome this challenge, Kaku explores the idea of using superconductors, materials that can conduct electricity with zero resistance. He visits a lab at the University of Houston where scientists are developing high-temperature superconductors that could potentially be used in creating force fields.

Kaku also discusses the potential applications of force fields beyond space exploration, including protecting cities from natural disasters such as tornadoes and earthquakes.

Throughout the episode, Kaku uses vivid animations and graphics to illustrate complex scientific concepts and make them accessible to viewers. He also engages in hands-on experiments, such as testing the strength of a neodymium magnet and observing a levitating superconductor.

Overall, "How to Build a Force Field" is a fascinating exploration of a technology that has long captured the imaginations of science fiction fans. Through interviews with experts in the field and engaging demonstrations, Kaku sheds light on the scientific principles behind force fields and the challenges of creating them in real life.