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Microscale Thermite Reaction (sciencedemonstrations.fas.harvard.edu)
imzadi 1 minutes ago [-]
Does the second rusty ball really need to be a rusty ball since it is covered in foil?
krunck 1 hours ago [-]
Please try this at home. You all have rusty iron ball laying around, right?
fer 51 minutes ago [-]
It wouldn't be weird for someone in the south of France to have a rusty pétanque ball.
jcims 34 minutes ago [-]
Hammer faces would work (def wear goggles!!!). Hit the face of the disposable one with a mixture of hydrogen peroxide, vinegar and salt and wait an hour.
xattt 50 minutes ago [-]
Joining the thread to see where iron balls can be sourced.

Some vendor on AliExpress? Those Lucky Iron Fish?

dgacmu 24 minutes ago [-]
This might work with old iron dumbbells (or modern iron kettle balls if left unpainted). Your gym might hate you for it though.
lstodd 38 minutes ago [-]
I'd guess exact form wouldn't matter. Wrap a hammer in foil and beat up something rusty.
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