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You can help finance my videos by supporting me on Patreon: What is a warp drive? Are they scientifically possible? How does the Alcubierre drive work? That's what we talk about today. The paper has now been published here: An open-access version is here: You can find more information about the authors' work here: When I talk about energy conservation around 7 mins, I am NOT referring to the conservation of the stress-energy-tensor. This is conservation is always fulfilled if Einstein's field equations are fulfilled by way of the (contracted) Bianchi identities. I am talking about the conservation of the four-momentum (the integrated quantity) that is associated with the warp-drive bubble. In an asymptotically flat space-time, it should be conserved. If the bubble accelerates, it isn't. (As you'd expect.) #physics #space #science 0:00 Intro and
