Free Science Videos and Lectures

A ferrofluid is a liquid which becomes strongly polarised in the presence of a magnetic field.

Ferrofluids are composed of nanoscale ferromagnetic particles suspended in a carrier fluid, usually...

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ferrofluid, ferromagnetic fluid, magnet, magnetization

An atmospheric cloud wave is a stable structure moving through the clouds.

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weather, atmosphere, clouds, wave, rain

First waves in a large free sphere of water in weightlessness are examined.

A large free sphere of water 130mm in diameter. A puff of air is put radially directed from side and we look at the...

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experiment, zero g, 0g, weightlessness, water, sphere, surface waves, body waves, water droplets, elastic collisions, effervescent antacid tablet, chemical reaction

To reach other intelligences our technology must reach beyond interplanetary distances it has to go interstellar distances.

The largest radio radar telescope on the planet Earth - Arecibo radio...

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life, stars, carl sagan, milky way, galaxies, intelligence, civilization, radio telescope, extraterrestrial, arecibo, puerto rico, m15, signal, prime numbers

Building on the success of the two rover geologists that arrived at Mars in January, 2004, NASA's next rover mission is being planned for travel to Mars before the end of the decade. Twice as long...

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mars, planet, labaratory, rover, parachute, orbit, landing, exploration, msl