In this equipment, the strength of the
light can be adjusted, so that the light is
either strong for a short period of time, or
low for a comparatively longer period of
time; and this is determined by the weight
of the ballast or brass. The two terminals
in the front of the Gravity Light can be
used to power other simple devices such
as radios.
This may be considered as a simple
Engineering application. Here, the light
A GRAVITY POWERED
intensity may not be much, or the period
LED?
to lift the weight up; which may result in
P
of electricity generation for one lift may
be short and it is true that a person has
calling this something primary. But, still
all what you have to do to light a bulb
for 30 minutes is just lifting a weight to
some height.
eople in developing countries still have difficulties in getting electricity or
other sources of energy to light up bulbs; as either the initial cost or running
cost of those methods are high. So, they use kerosene oil lamps as the as the
alternative. But, consciously it’s hazardous to the environment as well as to
It is obvious that light can be obtained
through this, regardless the geographical
or physical location, climatic condition
the health.
and the time of the day. And this produces
While there’s such a situation in developing countries, Martin Riddiford and Jim Reeves
the initial and running costs are low.
endless supply which is inexpensive as
were experimenting for 4 years to find out an inexpensive and safe way to light bulbs
and finally came up with a gravity powered LED light. This uses the gravity of the earth
It is true tha