These are my 100 mF 10 kV Maxwell energy discharge capacitors. I connect them in parallel, charge them to 10 kV, then unleash 10,000 Joules, rather violently.

This is my 34 kVDC PSU and my homemade controller.

This is a quarter, confined between 2 1" diameter hardwood dowels. I wrapped it with ten turns of AWG 10 magnet wire.

This is my coin shrinker setup. You can see my 1/4" x 3" silver plated copper bus bars. For containment, I used a stainless steel beverage vessle placed in a five gallon plastic bucket. I filled the annular space with concrete. If you look closely, you can see that this wasn't strong enough for the blast. The concrete cracked and the stainless steel has numerous punctures from the blast.

Here's my previous containment box after a single shot. This 1/8" aluminum diamond plate is no match for the supersonic copper fragments.

This is a quarter and a dime that I shrank.

Here's my can crusher.

Here's a can crushed at around 1,000 Joules.

Here's a can crushed at around 2,500 Joules.

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Adam