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.
âA battery is a device that is able to store electrical energy in the form of chemical energy, and convert that energy into electricity,â says Antoine Allanore, a postdoctoral associate at MITâs Department of Materials Science and Engineering ..