Marvin & Milo

Bubbles squared

 

Bubbles squared

 

 

What you need:

Six pipe cleaners or coated wires

Six straws

Scissors

Soap solution

Bubble wand

 

Instructions

Cut the pipe cleaners in half to make 12 pieces. Twist the ends of three pieces together to make a pyramid shape – make four of these.

Cut the straws in half to make 12 pieces and slide these over each leg of the pyramids. Twist the ends of each leg together to form a cube.

Submerge the cube in the soap solution for a few seconds then lift it out and move it gently till you have a horizontal square in the middle. Blow a bubble and drop it onto the square.

 

Results & explanation

The centre becomes a bulging cube!

Attractive forces in the soap mixture pull the film into a shape that minimises distances, creating the central square. These forces also pull the cube in the centre into a more spherical shape.

 

See previous cartoons

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Bottled tornado

Facing pressure

Mushrooming marshmallows

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Bubble bounce

Bead fountain

Jam jar session

Sixth-sense toy

Strange attraction

Impossible tower

Sinking sugar

Freezing time

Liquid strength

Mirror magic

Polar opposites

Unbalanced balloons 

Unsliced ice

Free fluid

Heavy atmosphere

Dogged drifter

Remote detector

Free fall ride

Electric slime

Pressure fountain

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