微积分

微 = 彳 + 山 + 一 + 几 + 攵 : Mnemonic symbol: a microscope.

Willy Walrus set up his microscope on a small table in front of the Eiffel Tower. He is investigating a very interesting crystal: the crystal looks like a big flute, and when he chips off pieces with a sledgehammer they also look like little flutes. He stores the chips in a black sneaker and to put them under the microscope he uses a fork.

微 = 彳 + 山 + 一 + 几 + 攵 : Mnemonic symbol: a microscope.

Willy Walrus set up his microscope on a small table in front of the Eiffel Tower. He is investigating a very interesting crystal: the crystal looks like a big flute, and when he chips off pieces with a sledgehammer they also look like little flutes. He stores the chips in a black sneaker and to put them under the microscope he uses a fork.

积 = 只 + 禾 : Joan of Arc (ji) and the cuttlefish (只) are preparing for bad times in front of the space station (Ø1). Together they are piling up (积) cereals (禾) so that they can always eat in times of need.

分 = 八 + 刀 : Symbol for this character: A stopwatch (from the meaning "minute"). Frankenstein's monster participates in the annual championship of chopping eightballs in front of the encampment. Using a cleaver, he chops as many eightballs as he can in one minute.