矼

工 = 二 + 丨 : Mnemonic symbol: a steel beam, since 工 looks like the cross section of a steel beam.

Gitta Giraffe (gu) is working a shift in front of the engine ((e)ng1). Her job is to melt dinosaur bones (丨) so that they can be disposed off easily. To melt the bones, she is shorting a huge capacitor (二) with a steel beam (工) which consequently heats up to a bright glow. Using the glowing hot steel beam she can melt the dinosaur bone easily.

石 = 丆 + 口 : Sherlock Holmes finds the space station's entrance blocked by a big rock. He uses a wind wheel and a mandarin to build a lever, with which he is able to move the rock.

石 = 丆 + 口 : Sherlock Holmes finds the space station's entrance blocked by a big rock. He uses a wind wheel and a mandarin to build a lever, with which he is able to move the rock.