Reflection involves a source of light and a ... Image caption, When the Sun ray hits the black umbrella some of the light is reflected back but some is also absorbed by the dark material.

SEE ALSO: Sunshine and clouds to kick off a long week of warm temperatures and dry conditions "They develop as a result of ice crystals slowly falling through the air, reflecting the sun’s rays ...

A surplus Sun Ray 270 all-in-one thin client came [Evan Allen]’s way, and to make something useful from it he converted it into a Raspberry Pi workstation. The Sun Ray 270 has a MIPS processor ...