The text is a transcript of a documentary about Nikola Tesla, the inventor and engineer who pioneered the use of alternating current and wireless transmission. The text narrates Tesla's life story, his achievements, his challenges, his rivals, and his legacy. It also poses some hypothetical questions about what the world would be like without Tesla's inventions. The text is divided into several sections, each focusing on a different aspect or episode of Tesla's biography. The text uses dramatic language, imagery, and rhetorical questions to engage the audience and convey Tesla's genius and vision.
Here are the key facts extracted from the text:
1. **Korean nuclear fusion reactor KSTAR** achieved 100 million°C for 30 seconds.
2. This temperature is nearly seven times hotter than the core of the Sun.
3. The core of the Sun has a temperature of close to 15.7 million Kelvin.
4. KSTAR's experiment is a significant step in nuclear fusion research.
5. The experiment demonstrated a net energy gain, a crucial milestone for fusion energy.
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