Marvin and Milo

Explore physics the exciting way, by trying out a simple and fun experiment. This month, Leaning Tower Don't forget to check back next month for the next edition...

Leaning Tower

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What you need


Plastic box



Smooth brick or other heavy object

Rubber mallet



Fill half a plastic box with sand

Add water until it fills up to just below the level of the sand.

Place a heavy object upright in the sand. 

Tap the side of the box with the mallet and you'll notice the object will begin to fall over.

Results & explanation


Tapping the side of the box makes the sand particles move over each other, making the heavy object fall over.

Read more about liquefaction on


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