Handige en interessante filmpjes

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Re: Handige en interessante filmpjes

Berichtdoor Z4x » vr jun 18, 2010 10:11 am

Voor Mmaniac McManiac

http://www.guardian.co.uk/lifeandstyle/ ... -principle

Almost any food can be made into a jelly by following a few simple guidelines
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Re: Handige en interessante filmpjes

Berichtdoor Z4x » zo jul 04, 2010 7:44 pm

http://www.physorg.com/news197460066.html

The world's biggest Roman candle has got nothing on this. Using super-high pressures similar to those found deep in the Earth or on a giant planet, Washington State University researchers have created a compact, never-before-seen material capable of storing vast amounts of energy.

...

All this "squeezing," as Yoo calls it, forced the molecules to make tightly bound three-dimensional metallic "network structures." In the process, the huge amount of mechanical energy of compression was stored as chemical energy in the molecules' bonds.
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Re: Handige en interessante filmpjes

Berichtdoor Z4x » ma jul 12, 2010 10:06 am

Er zijn toch ook mensen die "chemie koken" doen, misschien is dit handig voor de "looks": http://www.toxel.com/inspiration/2010/0 ... -by-color/
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Re: Handige en interessante filmpjes

Berichtdoor Z4x » vr jul 16, 2010 9:50 am

http://mrsec.wisc.edu/Edetc/nanolab/3D_print/index.html

3D Printing

In this lithography experiment light creates free radicals from phenylbis(2,4,6-trimethylbenzoyl)phosphine oxide which induce polymerization of 1,6-hexanediol diacrylate. Light is supplied by a computer projector which shines the pattern for one layer at a time. After each layer, the elevator is slightly lowered and the process is repeated. A dye (Sudan I) is included to prevent light from penentrating much below the surface of the solution.
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Re: Handige en interessante filmpjes

Berichtdoor Z4x » vr jul 16, 2010 7:03 pm

http://www.physorg.com/news198500447.html

(PhysOrg.com) -- Chemists from New York University and Russia's St. Petersburg State University have created crystals that can twist and untwist, pointing to a much more varied process of crystal growth than previously thought. Their work, which appears in the latest issue of the Journal of the American Chemical Society, may explain some of the properties of high-polymers, which are used in clothing and liquid crystal displays, among other consumer products.
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Re: Handige en interessante filmpjes

Berichtdoor Z4x » wo jul 21, 2010 12:19 pm

glow sticks - NurdRage (17 juli 2010)

http://www.youtube.com/watch?v=tItOOpyJP5k

of was die al geweest?
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Re: Handige en interessante filmpjes

Berichtdoor Jor » di jul 27, 2010 10:40 am

Ik heb een site gevonden met veel leuke experimenten erop, het is een Duitse site:

http://illumina-chemie.de/

Vooral de synthesen zijn interessant en zeer exotisch:
http://illumina-chemie.de/synthesen-f21.html
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Re: Handige en interessante filmpjes

Berichtdoor Nernst » di jul 27, 2010 1:03 pm

Mooie vondst Jor!
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Re: Handige en interessante filmpjes

Berichtdoor Z4x » vr aug 13, 2010 9:59 pm

Hier staan paar 'boem' experimenten. Ziet er wel leuk uit.

http://www.uk.rug.nl/overig/series/boem.php
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Re: Handige en interessante filmpjes

Berichtdoor Z4x » do aug 26, 2010 10:09 am

http://www.popsci.com/science/article/2 ... ntists-say

How's this for spooky action at a distance? The sun, at 93 million miles away, appears to be influencing the decay of radioactive elements inside the Earth, researchers say.
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Re: Handige en interessante filmpjes

Berichtdoor blommetje92 » di aug 31, 2010 6:56 pm

http://www.spelletjesoverzicht.nl/element-matching-game.html

geen leuk filmpje, maar wel een leuk spelletje.
Wie kan bij de eigenschap de goede groep elementen vinden? B)
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