Engineering

Liquid metal may point way to wearable ultrasound devices

The best-known byproduct of ultrasound—so named because its frequencies exceed the range of the human ear—is, in fact, not audio but visual: 2D imagery, often of a fetus maturing in the womb. But ultrasound has also found ...

Blood flow

Blood flow is the flow of blood in the cardiovascular system.

It can be calculated by dividing the vascular resistance into the pressure gradient.

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