Secret Lab 2: Light

Professor Knowitall explores light with Dr Spark and Dr Bright

Factual series explaining all the mysteries of the world of science in BSL! In this episode, Professor Knowitall and his sidekicks Dr Spark and Dr Bright tell us all about light. How long does it take the sun’s light to travel to Earth? Which is faster, light or sound? Dr Spark once again gets in the teleporter and blows up some watermelons to give us the definitive answer! Later, she’s sent to a laser pointer to show whether light rays are curved or not. Finally, Dr Knowitall explores what happens when light is filtered through different colours.Aimed at children of Key Stage 3 level. Don’t miss it!

Click here to see a Deaf Boy's tribute to Secret Lab and Professor Knowitall!


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  • Sun solor what in there
    Posted on
    151127
  • Great work! Hope it will continue.
    Posted on
    150813
  • I had no physics lessons at school in the 1940s and 50s because of the shortage of teachers after the war. Tried learning from books but quite diffficult. This production gives is a clear explanation of light and is entertaining at the same time. Will recommend it to friends to view. Very useful for children hearing and deaf too.
    Posted on
    140219
  • my son is profoundly deaf and is a BSL user and found this amazing! can we have more please!!
    Posted on
    140219
  • i love it
    Posted on
    121112
  • Amazing program!
    Posted on
    121031
  • where live secret lab
    Posted on
    121031

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