Is it possible to track physical objects on a blockchain? I am currently working on a project for school in which we have to come up with a product. I won't go into the mechanics of my product but essentially what my group has come up with is using tracking devices to track any object through a mobile/desktop application. When looking through tracking technologies, the idea of using blockchain technology to track physical objects came to mind. 

However, I am not entirely sure if this is possible so I would like to know if it is and could it work in theory and in practicality? Has this already been done yet?
I forget who once said this, "If you think you need to use BlockChain technology, you almost certainly don't."

BlockChain technology is designed to show proof of ownership via a proof of work mechanism that ties an expensive-to-run algorithm to a cryptographically secure chain of transactions.

If your system seeks to track ownership of objects where ownership changes regularly, and you need to prove ownership, perhaps a BlockChain solution might be applicable.  However, if your objects don't regularly change ownership, and you're simply looking to track geographical position, I would recommend some other data storage system, such as a typical relational database.