Nothing works without a spring
When people talk about the most important invention by mankind, it usually revolves around the wheel. But can you imagine a day without springs? Every switch contains a spring, as do the contact elements of every socket. Every lock comprises several springs. There are springs in every battery or power pack operated device. Without springs, we would have to make do without any of our much-loved electronic devices. Acknowledging these facts also means realising that most everyday items would be entirely useless without springs or spring elements. It’s fair to say that the spring easily tops the wheel.