[[A bar chart on a sheet of paper labeled "Fuel energy density in Megajoules
kg.  Values are as follows:
Sugar: 19
Coal: 24
Fat: 39
Gasoline: 46
Uranium: 76 000 000

The bar representing Uranium is so large that it extends onto a stack of paper taller than a human]]

{{Title text: Knuth Paper-Stack Notation: Write down the number on pages. Stack them. If the stack is too tall to fit in the room, write down the number of pages it would take to write down the number. THAT number won't fit in the room? Repeat. When a stack fits, write the number of iterations on a card. Pin it to the stack.}}