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Rivers and 'Dreven'      Portfolio      Partytricks      Don't do this at home      The Trinity Test (1945)      Photogallery      Gadgets      Audiovisual expertise      Remarks and citations      Pronounciation      Other websites      Downloads      Disclaimer      Science Café Overvecht

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About this site

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Rivers and 'Dreven'

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45 streets, all called drives ( dreef, plur. dreven ), in the Overvecht district of Utrecht are named after rivers.
On an interactive map you can see photos of these rivers.

Portfolio

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Things I make
• Ceramic chain
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• Ashtrays for non-smokers
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• Moisturemeter
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• Broche
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• Single lens microscopes
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• Klarner's puzzle
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• High speed photo's
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• Noise generator
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• Lost wax casts
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Partytricks

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Vacuumdestillation of ethanol
• Additive and subtractive colourmixing.
• Bimetal switches and jumping Klixon.
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• Crystallisation of sodiumthiosulphate; it happens for your very eyes. sodiumthiosulphate.mpg
• Cycloide; the straight path is not always the fastest path.
• Electrostatic bending of a waterjet flowing from a Mariotte bottle.
• Floating sphere
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• Gadolinium thermal engine
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• Giga soapbubbles; 60 cm diameter or more.
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• Greasespot photometer
• Mach-bands; how we enhance visual contrast.
• Meteorites en tectites.
• Polarised light; double refraction in Calcite, Haidinger's figures.
• Reactions of coppersulphate; colourful chemistry.
• Thermoelastic effect; the carnotcycle of a rubberband.
• Thermoelectic generator; Peltier-effect.
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• Triboluminescence; DOY light from sugar
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• Ulexite; natural fiber optics.
• Vacuumdestillation of ethanol.
• View how a sugarcube disolves with schlieren projection.
• Waterpowered electrical machine; Wasserinfluenzmachine.
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    and     http://www.youtube.com/watch?v=rWKgeVO02N8
• Woodsmetal; an alloy that melt in hot water. calciet.jpg

Don't do this at home

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• V1.5; a selfcontrolled chainreaction.
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    including V1 flying bomb , V2 rocket and Rolls-Royce gasturbines .
• van de Graaff generator; 350 kV DC.
• hydrogenfactory; clean electrolysis of NaCl.
• Pooring molten lead on ice.
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• Trinitite, legacy of the first nuclear bomb.
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Photogallery

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To view these webpages a broadband connection is recommended.

Gagelpark


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Objects trouvés


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Svizzera


• Samedan 2007
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• Andermatt 2010
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• Samedan 2011
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• Göschenen 2013
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• Thun 2014
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Gadgets

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• Birdnest monitoring
• Cinemalightning in your livingroom
• IR over coax
• Interrupted powersupplies
• Lightningswitch for toilets
• Magnetic storm detector
• Magnetronhygrostat
• Measuring the molecular weight of gases by diffusion (in development)
• Measuring the molecular weight of gases with ultrasound
• Powergrid alarm
• Powergrid monitor
• RFID detector detector
• Superellipse furniture
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Audiovisual expertise

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mp3 audio quality

Results of detailed evaluation.
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Remarks and citations

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Citations and booktitles I want to share.
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Pronounciation

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How do you pronounce f.i. Nikon or Linux ? listen

Other websites

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Sites and places you should visit
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Downloads

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Disclaimer

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Alp Mulix (2500m) This site is under construction.    kongsa chung    48/0 Kõ 6/7 Ji 1/2 Chu
The illustration seems to show destruction rather than construction. But that depends on your point of view. Alp Mulix near Preda in Switzerland at an altitude of 2500 m drains in the Ava de Mulix , a tributary of the river Albula. Which itsself is a tributary of the river Rhine (Hinterrhein). So the ultimate destination of this granite may be Rotterdam.

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© COPYRIGHT: Harm J. Schoonhoven, Utrecht, 2011. version 2016-08-31. All rights reserved.    Change Log
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