Added: 11 months ago
From: arvindguptatoys
Views: 16,738
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  • Great video...just use CAUTION with Dettol and similar liquids...Dettol is poisonous when ingested, and even when it is unintentionally inhaled.

  • pl explain the importance of dettol..u should explain everything in the projects..

  • this is really fantastic...all ...bravo :))

  • Comment removed

  • @arvindguptatoys ty that helped cause i am grade 8 and studying total internal reflection in physics this helped me to know the secret

  • ha he spilled some water on his second trial!!

  • why dettol water Is imp ?

  • @21dreem I've seen that in another video : the Dettol is used to make the water a little hazy. I guess that without it, the laser light might be nearly invisible.

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