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Plasma Globe
# 7B35.75


Description: The plasma globe consists of a partially evacuated glass sphere containing a mixture of gases at fairly low pressure. The smaller sphere at the center of the glass sphere is connected to a high voltage, high frequency, yet low current source of alternating current. Touching the glass side will cause a plasma stream to flow to your finger tips. Bring a flourescent tube close by and the high voltage will light it.

Purchased/Built: purchased

Setup Time: none

Quant. in Demo Room: 1

Source: Edmund Scientific

Demo References
The Video Encyclopedia of Physics Demonstrations Disc 25-06 Bring the hand near a commercial plasma tube.

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