When writing my post, I remembered the miner's joke from the series: > What's as big as a house, burns 20 liters of fuel an hour, puts out a huge amount of smo

When writing my post, I remembered the miner's joke from the series: > What's as big as a house, burns 20 liters of fuel an hour, puts out a huge amount of smoke and noise, and cuts an apple into three pieces? > A Soviet machine for cutting apples into four pieces.