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Free science and education videos tagged human (page 1)

Neutrophil Chemotaxis

Neutrophil Chemotaxis

Human neutrophils are mobile cells that will quickly migrate to sites of injury to help fight infection. They are attracted there by chemical signals released by other cells of the immune system or...

This science video contains:
experiment, human, polarization, cell, bacteria, blood, neutrohpil chemataxis, microbes, chemical signal, micropipette

The Pale Blue Dot

The Pale Blue Dot

This is our home. Earth from 4 billion miles (Voyager 1991).

This is here. This is us. On it every one you ever heard of. Every human being who has ever lived. All our joys and sufferings....

This science video contains:
earth, carl sagan, planet, milky way, voyager, satellite, human, inventor, explorer, universe