Particles of Thought

Big earthquakes can change the Earth’s rotation.And Harvard geophysicist John Shaw says these giant events can teach us a lot. He traces our understanding from ancient myths to modern studies and unpacks what;s really going on beneath the surface. John reveals why a magnitude 7 earthquake releases 30 times the energy of a WWII-era atomic bomb, how the largest quakes make the Earth ring like a bell for days, and why the deadliest earthquake in history wasn't even the biggest one.Learn more about NOVA and visit our YouTube channel.--------------------------Guest Bio:John Shaw is the Harry C. Dudley Professor of Structural and Economic Geology at Harvard University, where he also serves as Vice Provost for Research. A structural geologist and applied geophysicist, he studies the faults deep beneath our feet, with research spanning earthquake hazards, energy systems, and carbon storage.

There is a near-limitless energy source to power our world, and it may be almost here. Dennis Whyte shares with Hakeem that we're closer than ever to bottling the power of the sun. He would know. He’s now the CEO of the United Kingdom’s Atomic Energy Authority and a nuclear scientist at MIT. What happens when we finally unlock nuclear fusion, the same energy source that powers the sun? What even is fusion? How does it work, and why are scientists now so close to building commercially viable fusion systems that could put power on the grid?  From fusion fundamentals, to the future of energy, to interstellar space travel, Dennis and Hakeem deliver a big conversation on an innovation that could change everything. Learn more about NOVA and visit our YouTube channel.--------------------------Guest Bio:Dennis Whyte is the Hitachi America Professor of Engineering at MIT and former director of the Plasma Science and Fusion Center. He co-founded Commonwealth Fusion Systems, the MIT spinout building a compact fusion reactor using record-breaking superconducting magnets, and is now the CEO of the United Kingdom's Atomic Energy Authority.

Dennis Whyte has designed a fusion reactor for Mars, and it turns out the red planet has plenty of fusion fuel. The MIT nuclear scientist joins Hakeem to explore fusion's wildest applications: spacecraft propulsion, space stations, and even a shield that stops radiation. While they’re at it, Dennis and Hakeem discuss the roadblocks and risks still left to solve in nuclear fusion. Learn more about NOVA and visit our YouTube channel.--------------------------Guest Bio:Dennis Whyte is the Hitachi America Professor of Engineering at MIT and former director of the Plasma Science and Fusion Center. He co-founded Commonwealth Fusion Systems, the MIT spinout building a compact fusion reactor using record-breaking superconducting magnets, and is now the CEO of the United Kingdom's Atomic Energy Authority.

Dennis Whyte helped spark a multi-billion-dollar industry from a spool of tape. The nuclear scientist and entrepreneur explains the nitty gritty of nuclear fusion through the multitude of businesses that are chasing nuclear fusion. Dennis walks Hakeem through the origin story of Commonwealth Fusion Systems, the company he co-founded from a class assignment, and reveals how a new superconducting material discovered in the 1980s finally made compact fusion possible.Learn more about NOVA and visit our YouTube channel.--------------------------Guest Bio:Dennis Whyte is the Hitachi America Professor of Engineering at MIT and former director of the Plasma Science and Fusion Center. He co-founded Commonwealth Fusion Systems, the MIT spinout building a compact fusion reactor using record-breaking superconducting magnets, and is now the CEO of the United Kingdom's Atomic Energy Authority.

Dennis Whyte studies the physics that powers every star in the universe, and he says it can power your house, too. Now the CEO of the UK’s Atomic Energy Authority and nuclear scientist at MIT, Dennis joins Hakeem to break down what fusion actually is, why it packs 10 million times the energy density of gasoline, and who is making the biggest investment in this massive energy field. Dennis unpacks the surprisingly direct link between a society's energy use and its economic prosperity, and reveals why fusion might change everything.Learn more about NOVA and visit our YouTube channel.--------------------------Guest Bio:Dennis Whyte is the Hitachi America Professor of Engineering at MIT and former director of the Plasma Science and Fusion Center. He co-founded Commonwealth Fusion Systems, the MIT spinout building a compact fusion reactor using record-breaking superconducting magnets, and is now the CEO of the United Kingdom's Atomic Energy Authority.