Which is faster: a motorbike, golf ball, or firework? Brainiac boffin Jon Tickle goes undercover with X-Ray specs; vacuum cleaning - does it really suck? Brainiacs get sloshed checking out hangover cures; we do more bad things with a microwave oven; Tina Turner and her Bunsen Burner are back with another big bang; it's slime time for Dr Bunhead; a bunch of toffs take on our black box flight recorder.