C
Clive Mitchell
- Jan 1, 1970
- 0
How easy is it to make the bubble tubes and bubble lights so common in
the old Wurlitzer jukeboxes and as Christmas lights? These are the
sealed glass tubes that usually contained methylene chloride with some
glass or chemical granules at the bottom to allow easy vaporisation of
the liquid using an external heater or lamp. The liquid then "boiled"
sending bubbles up the tube where the vapour recondensed back into
liquid again to repeat the cycle.
Do these need a vacuum drawn on them to lower the liquids boiling point?
Is there a safer liquid?
Also, does anyone have a close-up picture of an old Christmas light
called a Peerless Shooting Star which sounds like a mini lava lamp.
the old Wurlitzer jukeboxes and as Christmas lights? These are the
sealed glass tubes that usually contained methylene chloride with some
glass or chemical granules at the bottom to allow easy vaporisation of
the liquid using an external heater or lamp. The liquid then "boiled"
sending bubbles up the tube where the vapour recondensed back into
liquid again to repeat the cycle.
Do these need a vacuum drawn on them to lower the liquids boiling point?
Is there a safer liquid?
Also, does anyone have a close-up picture of an old Christmas light
called a Peerless Shooting Star which sounds like a mini lava lamp.