little_tippler

Invisible Water?



Supercooling



Rubens Tube



Trapped Lightning



Superconductivity

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Whether we write or speak or do but look
We are ever unapparent. What we are
Cannot be transfused into word or book.
Our soul from us is infinitely far.
However much we give our thoughts the will
To be our soul and gesture it abroad,
Our hearts are incommunicable still.
In what we show ourselves we are ignored.
The abyss from soul to soul cannot be bridged
By any skill of thought or trick of seeming.
Unto our very selves we are abridged
When we would utter to our thought our being.
We are our dreams of ourselves, souls by gleams,
And each to each other dreams of others' dreams.

Fernando Pessoa, 1918

SSJTWIZTA

Ive made a Rubens' Tube before. i have a thing for science.

im going to have to watch the rest of these. seeing how im on dial up, this should be a fun night.

edit: ive done the supercooling one plenty of times drinking. its nice to finally knows what happens. no longer will i pick up a brew, go to the couch, sit it down, pick it back up and exclaim "WHAT THE FUCK!?"

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First they came for the Jews and I did not speak out because I was not a Jew.
Then they came for the communists and I did not speak out because I was not a communist.
Then they came for the trade unionists and I did not speak out because I was not a trade unionist
Then they came for me And there was no one left to speak out for me.
-Pastor Martin Niemoller

Atreides88

This thread is awesome. Now I need to go find some liquid nitrogen for that superconductivity test.

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ironpham

Those were all amazingly awesome.

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SIGNATURE.

Death-inc

Very interesting

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Hain

The invisible water one was most likely CO2 in the tank.

Very cool stuff. I need to do the one with the beer.

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////\\// IRONSKY.NET \\//\\\\

Cynthetiq

very cool things

if you read the youtube comments for the invisible water it is supposed to be sulfur hexafloride a gas denser than the air around it.

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Daniel_

I've seen the SF6 demo in real life, and it's really interesting.

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Overhead, the Albatross hangs motionless upon the air,
And deep beneath the rolling waves,
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The Echo of a distant time
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Plummie

The trapped lightning demo was sweet!

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Kim

greyeyes

How do you think that the beer was frozen?

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Martian

It's very simple. What happened was that he left it in an environment below zero degrees without disturbing it (video's description says the freezer, which does seem to be the most readily available one). The liquid's temperature dropped below zero, but since it was undisturbed no seed crystal formed and it didn't freeze. As soon as he tapped it on the table the liquid was sufficiently disturbed to form a seed crystal and froze almost instantly.

The same effect is responsible for freezing rain.

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