Strip by: David Morgan-Mar
T-Rex: T-Rex presents The Periodic Table:
T-Rex: 61 PROMETHIUM
T-Rex: An element with no stable isotopes, it exists only as an intermediate decay chain product. The short half life of 18 years means the total supply in Earth's crust is only about 500 grams.
T-Rex: Named after Prometheus, the Titan who stole fire from the Greek gods.
T-Rex: To symbolise "the daring and possible misuse of mankind's intellect."
Utahraptor: Wow. They built a hubris warning right into the element's name.
T-Rex: Yeah. The discoverer wanted to name it Frankensteinium, but it wasn't "classical" enough.
The author writes:
 That's actually the half life of the longest lived isotope. Two other main isotopes have half lives of just a few years, and other isotopes are even shorter lived.