Astro Hacker News - Microscale Thermite Reaction

mrnotcrazy |next [-]

Does the ball need to be iron? Can we just take a 3d printed sphere, paint it with glue ,roll it around in a bucket of rust and then smash?

imzadi |next |previous [-]

Does the second rusty ball really need to be a rusty ball since it is covered in foil?

krunck |previous [-]

Please try this at home. You all have rusty iron ball laying around, right?

fer |root |parent |next [-]

It wouldn't be weird for someone in the south of France to have a rusty pétanque ball.

jcims |root |parent |next |previous [-]

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 |root |parent |previous [-]

Joining the thread to see where iron balls can be sourced.

Some vendor on AliExpress? Those Lucky Iron Fish?

dgacmu |root |parent |next [-]

This might work with old iron dumbbells (or modern iron kettle balls if left unpainted). Your gym might hate you for it though.

lstodd |root |parent |previous [-]

I'd guess exact form wouldn't matter. Wrap a hammer in foil and beat up something rusty.