Shrinking penny experiment: 1. Take a penny, must be newer than 1971. 2. Put it in the microwave for 2 minutes and 30 seconds EXACTLY—any shorter and it won't happen, any later and it could destroy your microwave. 3. Remove tiny penny.
Just discovered this through a friend who majored in physics. So cool!! Does anyone else know any cool, less known science tricks like this?
put a grape in it. it's actually fun. don't do it if it's new.
Colton Garcia
i meant, if the microwave is new.
Isaac Gutierrez
>old grape
Henry Diaz
raisins won't work, it needs water to create the plasma, that's why I corrected myself
Isaiah Garcia
Yes, as the process requires a high level of voltage.
For the intellectual less-thans:
Short answer—yes, this CAN work. However, there are some major caveats here. There are many variables at play when it comes to successfully shrinking a conductive metal such as copper. First off, it must be in a completely dry environment devoid of ANY moisture. This is difficult, but not impossible, to do at home. It would take a lot of effort to make sure you get this step right. If it isn't completely dry, it simply won't work. Copper is a metal made up of copper atoms closely packed together. If we could look closely enough, we would see that there are electrons moving about between the copper atoms. Each copper atom has lost one electron and become a positive ion. So copper is a lattice of positive copper ions with free electrons moving between them. (The electrons are a bit like the particles of a gas that is free to move within the surfaces of the wire). The electrons can move freely through the metal. For this reason, they are known as free electrons. They are also known as conduction electrons, because they help copper to be a good conductor of heat and electricity. The key we're looking for here is a process called PYROLYSIS—it is essentially, in this context, the decomposition of metal due to being exposed to high levels of heat. Microwave-metal interaction pyrolysis has had led to successfully shrinking metal materials before it completely decomposes them. It is the foundation for the fictional concept "THE SHRINK RAY" a la "HONEY I SHRUNK THE KIDS", etc. So yes, it is very real—and yes, it can be achieved.
Oliver Anderson
But first you have to completely dry the kids >Honey, I Desiccated the Kids