  A human creates an image basing on the information delivered by photons that
arrived at his retina simultaneously. Due to finite and constant velocity of
light these photons left the moving body at different times, since not all
points of the body are equidistant. In other words its image represents the
body as it was in several different times i.e. it is distorted and does not
correspond to its real appearance. The useful experimental arrangement is set
and then used to derive the general expression that transforms two-dimensional
stationary shapes to their apparent forms, which could be photographed once
they are set in motion. It is then used to simulate the so-called Gamow's
bicycle combined out of circles and straight lines. The simulation outlines two
important aspects of bike's motion: apparent distance of two points and
apparent velocity which are then discussed thoroughly. It is found that the
approaching body is elongated and its apparent speed is greater than its real
one (under certain conditions can exceed the speed of light), whereas the
receding one is contracted (but not in a matter of Lorentz contraction) with
the speed smaller than the real one. Both the apparent length and speed tends
to a certain limit when time tends to plus or minus infinity. The change of
both parameters takes place in the vicinity of the nearest approach to the
observer and is more rapid when the velocity greater and the distance is
smaller. When the moving vertical rod is seen at right angle, its total
apparent length is Lorentz contracted, however its interior is still distorted.
At the same conditions apparent velocity of a point equals its real one.
Finally it is proven that not only the apparent geometrical shape changes as
the body moves but also its color according to Doppler shift.
