In the provided text, a group of characters embarks on a magical adventure involving a dragon, a powerful ring, and the struggle between good and evil. They face challenges, including traps set by witches and the retrieval of a stolen magic ring. The narrative touches on themes of friendship, courage, and the quest for knowledge about one's powers and origins. The story culminates in a confrontation with authority figures regarding their actions.
Here are the key facts extracted from the text:
1. A nuclear fusion reaction was sustained at over 100 million°C for 30 seconds.
2. The experiment achieved a net energy gain.
3. The temperature achieved is nearly seven times hotter than the Sun's core.
4. The Sun's core temperature is approximately 15 million degrees Kelvin.
Please note that these facts are based on the search results provided earlier in our conversation. If you need more detailed information or have any other questions, feel free to ask!