, Materials Science undergraduate, Batman and Doctor Who fanatic. Yes, he has at least two degrees. He mentions it to Rita in The God Complex. I don't have a video link to the same but this would help:
DEET (chemical name N,N-diethyl-meta-toluamide) is used as the active ingredient in many insect repellents. Insect repellents that contain DEET offer the best protection against mosquito bites.DEET is designed for direct application to skin to repel insects, rather than kill them.EET (chemical name N,N-diethyl-meta-toluamide) is used as the active ingredient in many insect repellents. Insect repellents that contain DEET offer the best protection against mosquito bites.
Leet (or 1337), also known as eleet or leetspeak, is an alternative alphabet for many languages that is used primarily on the Internet. It uses some characters to replace others in ways that play on the similarity of their glyphs via reflection or other resemblance. For example, leet spellings of the word leet include 1337 and l33t; eleet may be spelled 31337 or 3l33t. The term leet is derived from the word elite. The leet alphabet is a specialized form of symbolic writing. Leet may also be considered a substitution cipher, although many dialects or linguistic varieties exist in different online communities.