Free Science Videos and Lectures

We travel inside nucleus to see how the DNA replicates.

When DNA replicates its strands are separated by enzine helicase.
Single-stranded DNA binding proteines keep the strands from...

This science video contains:
dna, replication, enzine helicase, strand, polymerase, encode, okazaki fragments, rna primase, rna primer, dna ligase

The plane is vibrated at some specific frequency. The waves travel across the plane and at some places they add together and at other places they cancel out. Where they cancel out the salt stucks...

This science video contains:
interference, resonance, plane, salt, node, antinode, destructive, constructive

This video shows how various molecules look. For example, water consisting of two hydrogen atoms and one oxygen atom.

The others are: glucose, sucrose, amylose, stearic acid, oleic, glycerol,...

This science video contains:
hydrogen, molecules, dna, oxygen, atoms, glucose, sucrose, amylose, stearic acid, oleic, glycerol, trigglyceride, phospholipid, alenine, serine, leucine, phenyaleine, hexapeptide, peroxide, dioxiribose, thymine, atp, amylpectin, cellulose

The video shows how each planet scales in size relative to each other.

The exploration begins at the smallest planet Mercury which has diameter of just 4880 km, then comes Mars (6794 km), Venus,...

This science video contains:
planets, stars, mercury, mars, venus, earth, neptune, saturn, jupiter, sun, sirius, pollux, arcturus, rigel, beteigeuze, antares, my cephei, vv cephei

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