Real image (such as the images on the right), real rays of light are always represented by full, solid lines; perceived or extrapolated rays of light are represented by dashed lines. A real image occurs where rays converge, whereas a virtual image occurs where rays only "appear" to converge. Real images can be produced by concave mirrors and converging lenses, only if the object is placed further away from the mirror/lens than the focal point and this real image is inverted. As the object approaches the focal point the image approaches infinity, and when the object passes the focal point the image
Concave football boot wears the 'Volt' range. Concave has retail and online distribution in UK, Australia, Japan, Indonesia, USA and Europe. Concave football boot The Concave Football Boot is a special boot designed to increase the 'sweet spot' (the area of the boot that makes contact with the ball) by approximately four times. It has evolved the games of Australian Football League, Soccer and Rugby league. Independent testing at Deakin University has shown the boot increases power by between 8-15% and provides increased accuracy with a smaller margin of error. Concave also designed this new boot to protect the metatarsal bones. The upper