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X @The Economist
The Economist· 2025-10-04 14:40
Will-o’-the-wisps do exist. Yet, spirits they are not. New research helps explain what causes the sudden ignition of methane bubbling out of swamps https://t.co/yxnma8acPl ...
Starship | Tenth Flight Test
SpaceX· 2025-09-29 22:53
- 5 minutes of counting. Expected propellant close out on both vehicles and we have no issues going into today's launch attempt. 5 4 3 2 1 Vehicle touching down right now.Max Mo should ignition stage separation. Ship engine cut off. Ship SM has entered payload deploy prep.Open the pod bay doors. [Applause] Ships at payload deploy. [Music] There goes another relight demo.Start up. Starship. Starship.Start over. Heat. Heat.[Music]. ...
How We Can Harness the Sun: Nuclear Energy and its Future | Sean Chung | TEDxPangyo Youth
TEDx Talks· 2025-08-19 15:05
Core Argument - Nuclear fusion represents a potential solution to energy challenges, offering a clean, abundant, and sustainable alternative to fossil fuels [4][14] - The technology is advancing, with breakthroughs in sustained fusion energy output and achieving ignition, where more energy is produced than consumed [18][19] - Global collaboration and private sector investment indicate growing support and momentum for nuclear fusion research and development [20][21][22] Technological Advancements - Fusion involves combining light atomic nuclei, like deuterium and tritium, to release substantial energy [6][7][12] - Achieving fusion requires extremely high temperatures, exceeding 100 million degrees Celsius, creating plasma that needs to be contained [15] - Magnetic confinement, using devices like tokamaks, is a leading method for containing plasma [16] - Ignition, producing more energy from fusion than input, has been achieved, demonstrating the potential for efficient energy generation [19] Fuel and Sustainability - Deuterium, a key fusion fuel, is abundant in seawater, and tritium can be bred from the fusion cycle itself, ensuring a sustainable fuel supply [13][14] - Fusion emits no greenhouse gases and produces no long-term radioactive waste, unlike nuclear fission [14] Challenges and Future Directions - Sustained funding, global cooperation, and continued research are crucial for realizing the potential of fusion energy [29] - Public perception and political challenges related to nuclear energy need to be addressed to gain widespread acceptance [25][26]