Trigger finger occurs due to inflammation of the tendons in the hand, causing hand tenderness, pain, and deformity. The condition limits your fingerâs movement and can make it impossible to straighten your finger.
1 A conical or volute spring (including the spring used to hold and make contact with the negative terminals of AA or AAA batteries in remote controls), and the vortex that is created when water is draining in a sink is often described as a spiral, or as a conic helix.
Optima Spiral cell batteries have been around for many years now. Many people have only good things to say about their performance! A short explanation about how they're constructed may help you to understand why they work so well for vintage car applications: Traditional batteries use lead plates suspended in acid.