for many years and they were
used as indicators on various devices
but there was no such thing as a blue
LED until it was finally developed first
in japan and the blue LED made it
possible to have white LED lighting and
now we have a revolution in lighting
throughout the world where incandescent
bulbs which use a great deal of
electricity are replaced by LED lights
and that was a spectacularly important
discovery the first Chinese Nobel Prize
in science was awarded recently for the
discovery of the drug from from
traditional Chinese medicine art
Enderson silicones
here are some more discoveries of
applied science the graphene in Britain
the giant magnetic resistance effect
you've never heard of that but it's very
important because when that when it was
discovered that mag the resistance of
materials can be very much affected by a
magnetic field it became possible to
developaccident he wasn't looking
for it he made lots of discoveries by
accident he discovered the planet Uranus
a new planet by the way uranium was
named after it was discovered in the
same year that he discovered Uranus and
so that's why uranium is called uranium
there was a serendipitous discovery a
contemporary of his johanna ritter just
the year later decided that if there's
something funny going on on the red side
of the spectrum there has to be
something strange going on on the blue
side of the spectrum
he discovered quite by planning
ultraviolet radiation then we come to
Heinrich Hertz
Heinrich Hertz
was a rare example of a physicist who
could undo experiments and understand
theory and he decided that he would
confirm the theory of electromagnetism
and find a new form of radiation radio
waves in 1888 he produced a device that
sent radio waves from