[Slow explanation] How did the universe begin?

[Slow explanation] How do we know the universe is 13.8 billion years old?

【ゆっくり解説】今さらだけど二重スリット実験って何なの？

[Slow explanation] It's a little late to ask, but what is light?

【ゆっくり解説】ブラックホールを予言したインドの天才

[Slow explanation] Why can't we meet aliens?

[Slow explanation] How did humans get to the moon?

[Slow explanation] Why did humans go to the moon?

【ゆっくり解説】なぜ地球が46億歳とわかるのか

【ゆっくり解説】錬金術とは何だったのか