They'll say it's gravity that causes the pressure gradient, but they can't explain gravity except by inventing gravitons.
They'll say it's gravity that causes the pressure gradient, but they can't explain gravity except by inventing gravitons.
This is a toy rocket launcher, what you are seeing is Schlieren imaging from the airflow coming out of the bottle. You can see the airflow is sonic by the Mach diamonds. This is known as under expanded sonic flow. Red is low pressure, blue is high.
This is a toy rocket launcher, what you are seeing is Schlieren imaging from the airflow coming out of the bottle. You can see the airflow is sonic by the Mach diamonds. This is known as under expanded sonic flow. Red is low pressure, blue is high.
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