Rheumatoid arthritis is a chronic (long-lasting) inflammatory disease that causes pain, stiffness, warmth, redness and swelling in joints. Over time, the affected joints may become misshapen, misaligned and damaged.
Jon Hamm as Matt Trent in Black Mirror. Photograph: Channel 4 Channel 4 has lost the right to show Charlie Brookerâs Black Mirror in the UK six months after the acclaimed drama was snapped up by Netflix in a reported $40m deal.
A convex mirror diagram showing the focus, focal length, centre of curvature, principal axis, etc. A convex mirror, fish eye mirror or diverging mirror, is a curved mirror in which the reflective surface bulges toward the light source. Convex mirrors reflect light outwards, therefore they are not used to focus light.