 The sun's core. The earth's core. The melting point of a diamond. Controlled nuclear fusion. Donna Summer. There's some hot stuff. It's a keep on dancing weekend. We hope you're enjoying the presentation. And don't forget, if you're looking to improve your love life, you need to improve your kissing skills. Kissing.com. Tips, tricks, who to kiss, who not to kiss, when to kiss. And the most important thing about kissing, I'll give you that one.