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plasma ball
noun
- a glass globe containing a low density gas and a central electrode that creates lightning-like streams of light.
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Example Sentences
When produced by high temperatures, such as in the sun, it’s called “hot plasma,” while the plasma created in a plasma ball and other room-temperature, low-pressure environments is called “cold plasma.”
When the pandemic shut down his lab last year, he took his work — and his plasma balls — home.
He and colleagues balanced the seeds on a plasma ball for one minute each, then incubated the seeds in water for seven hours.
“When we use the plasma balls or lamps, the water can penetrate easily through the pores and accelerate germination,” he says.
While researchers and growers await those results, citizen scientists, amateur physicists and experimental gardeners have been known to make space in the shed for a plasma ball next to their rakes and shovels, to run their own experiments at home.
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