Pulled by Sony Germany

Despite standing only 5'4" and weighing 140 pounds, Greenstein became one of the 20th century's leading strongmen. Some of his feats of strength included:
Driving 20 penny nails through a 2½ inch board with his bare hands.[1]
Lying on a bed of nails while supporting a 14-man Dixieland band on his chest.
Changing a tire on a car without any tools.
Breaking as many as three chains by chest expansion.
Bending an iron bar or horseshoe by holding one end with his teeth while one end of the bar was held fixed in a vise.
Bending half-inch steel bars with his hair.
Biting nails in half with his teeth (he could perform this feat with a 25-cent coin).
Resisting the pull of an airplane with his hair.[3] This feat was performed at the Buffalo Airport and was documented in the Buffalo Evening Times on September 29, 1928.
Greenstein continued performing his strongman feats well into his eighties, giving his last performance at his great-grandchild's first birthday on May 11, 1977 at Madison Square Garden. He was featured several times in Ripley's Believe It Or Not and in the 1976 Guinness Book of World Records. Later in life he sold coconut oil soaps and health elixirs at fairs and farmers' markets. He traveled in an old Model A truck with panels that opened to show his extensive collection of newsclippings and citations from civic leaders and organizations. NYC Mayor LaGuardia issued a proclamation thanking Greenstein for showing his skills to the NYC police department. Greenstein had volunteered to teach jujutsu techniques to members of the New York City auxiliary police during World War II. It was many years before the technique was known to most Americans. At the age of 81, Greenstein was still performing. He dazzled an audience at Madison Square Garden by bending horseshoes and driving spikes through metal with the palm of his hand. He succumbed to cancer five years later.

Flames conduct electricity

They also do so better in one direction than another and so behave like a diode...

That has been an effective analytical tool for some time.

OK, learned this the other day, but:

Gillian Anderson. I always thought she was cute in the X Files, but she's just got better with age. She was on Graham Norton on Friday. That'll be on iPlayer. If you can get past the mutant camp bloke, you're in for a treat.

Gillian needs a thread of her own, methinks.

Small problemette - Anderson died her hair for the X-Files, she's naturally a blonde.