This is a VERY LIMITED edition.
Those marbles are out of production for over 60 years, once my stock is empty, the project is over.
The uranium is a beautiful shiny necklace composed of:
- An antique uranium glass marble
- 1x Fully assembled and programmed microelectronics
- 2x CR1616 batteries
- 1x 3D-printed part in black or fluorescent yellow
- 1x Lanyard
Till the late fifties of the past century people made uranium glass things.
That is glass with 0.25-3% radioactive uranium-238 in it.
Uranium has the property of releasing beautiful yellow/greenish photons when its hit by UV light.
See fluorescence on wikipedia
What makes this necklace special?
It is radioactive!
A little.. very little actually.
In fact there is way more radiation hitting you if you board a plane or go hiking on a mountain.
But still.. it looks great.
Q: Is it dangerous?
A: No. It's beautiful.
Q: But is it safe?
A: You are on a rock that rotates at 1670 km/h floating trough space. You are not safe. Ever.
Q: But is this radioactive necklace thing save?
A: You should not eat it.
Q: Are you kidding me? Is it safe now or what?
A: I had the radiation measured with special equipment used in the radiation incident department of the red cross and the emitted radiation from the uranium marbles is SLIGHTLY above average background radiation that you experience all the time.
So no.. the emitted radiation is not harmful.
Also uranium is a primary alpharadiation emitter.
Its radiation can be blocked by a piece of paper. As long as you don't get it inside your body you are safe handling this material.
It is also not raw uranium but uranium GLASS.
That makes all the difference as the uranium is embedded in shielding material.
If you pick the BOTH ENCLOSURES option, we will send you all the parts to assemble uranium and one yellow and one black enclosure.
If you want to print your own enclosure or build on my design you can download the .scad and .stl files from thingiverse.
The uranium necklace came loooong way.
I got the inspiration from a .gif i saw on the internet ~12 years ago and started to play with uran marbles and UV lights.
8 different enclosure designs followed.
This one is perfect to me now.
It can be dismantled with ease to take out the electronics and the marble to show it off.
No glue, no screws, no brittle acrylic.
Also it is very robust and can be printed in different colors.