Lightning creates a vacuum in the surrounding air; how is it defined?

Subject: Lightning creates a vacuum in the surrounding air; how is it defined?

Date: Sat Oct 14 14:34:27 2000
Posted by Gary Benda
Grade level: undergrad School: No school entered.
City: Los Angeles State/Province: CA Country: USA
Area of science: Physics
ID: 971548467.Ph

Message:


In the 10/00 PS issue, "FYI" section, a question about sounds of thunder 
was asked, and answered as 'heat causes the air around the lightning to 
expand very quickly", so it creates a vacuum.  What are the properties of 
this vacuum; like a black hole? Or temporary at best?

Re: Lightning creates a vacuum in the surrounding air; how is it defined?

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