Humorous drawing of a computer scientist and a light bulbHumorous drawing of a computer scientist and a light bulb
White and yellow letters in the form of a light bulbWhite and yellow letters in the form of a light bulb
The image in the image of the light bulb-face profileThe image in the image of the light bulb-face profile
Hpp, the scheme of how much fuel is needed for a light bulb for a yearHPP, the scheme of how much fuel is needed for a light bulb for a year