The Mini-Maker Faire
One group replicated the MythBusters experiment to see if ninjas can walk on water by re-creating the same non-Newtonian liquid they did--cornstarch and water--a compound whose viscosity increases as you apply force to it. Lines of children were running and squealing across the water-and-cornstarch mix, not sinking. A few older children (troublemakers or scientists) challenged the theory by walking slowly and sinking up to their ankles in cornstarch sludge.
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