Anon asked in Science & MathematicsEngineering · 8 years ago

# What Egg drop contest designs with the given limitations?

the rules are no food, no plastic or polymers, no adhesives, no cotton material or bathroom tissue (paper towels, toilet paper).

measurement kg(cm^3) the smaller the better <25 would be awesome

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• 8 years ago

not sure what you mean by kg(cm^3) Could you be meaning density [kg][cm^-3], and be wanting the lightest design possible?

AFAIK no polymers will eliminates biological material of any kind.(proteins are polymers)

think about the only thing left would be metals. so metal foils come to mind? could perhaps cut strips to use a kind of rope, and tie knots to keep things together. If two edges of foil are to be joined, a seam can be formed by partially overlapping the foil, and rolling the edges so they are kept together as a kind of tinmans joint. Not sure if solder would be considered a kind of adhesive or not., but even a dry joint will have some mechanical strength, and be reasonably air tight.

Could possibly still try the balloon idea I've thought of previously for egg drops experiments. Make a tin foil hot air balloon that's only just large enough to lift itself+the egg. As air begins to cool, lift will be reduced, and so balloon will start to descend *slowly*. If impact speed is low enough, even an unprotected egg will survive NB use gas to heat the air- no polymers there (unlike wood which has lignin) .

• 8 years ago

If you were to form aluminum foil into pleats and arrange the layers 90 degrees to each other,it would absorb a lot of energy. 4 layers with 1/2' pleats would give you your size limits. 2"x2"x2".

Hope this helps.

Source(s): Old guy