You have introduced a very important topic to all of us but arranging such apparatus can't be an easy task for everyone. There are people who are avoiding transaction with cash. They are using scan and pay system. But not everyone is familiar to this contact less transaction of money. I would ask you to suggest some other techniques to disinfect the banknotes. It will help a lot of people out there.
That is great that your son is interested in atoms and all and whatever you are doing is very good. If you want to make him understandd the things in a better way then you can use animated illustartion available on youtube.
We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.