Raquel Welch knows what she is doing, with the scuba gear and the submarine.
Kids don't try this at home! It is OK for Tom Baker to enter his own head as a miniaturised clone, equipped with only a long woolly scarf and a sexy barbarian warrior clad in skimpy animal skins; he is a professional.
HA HA look at silly Trigo who is not at all clear on the concept. That branching strand of RNA is not a great deal of help now he has found the bacteria.