by gravity

Examples (10)

• The water flows from the tank by gravity to the houses below.
• Sewage systems often rely on gravity by design to move waste downhill.
• The oil is fed into the engine by gravity alone.
• Ancient aqueducts transported water by gravity over long distances.
• The grain moves through the silo by gravity without mechanical assistance.
• Blood returns to the heart from the legs partly by gravity when lying down.
• The irrigation system works by gravity, requiring no pumps.
• Rainwater is collected and distributed by gravity to the garden beds.
• The fuel reaches the carburetor by gravity from the overhead tank.
• Molten metal flows into the mold by gravity during casting.