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My golf swing (Peter Jacobse)
phj1990
394 views
This is me practicing my swing on the driving range. I'm hitting twice a PW, a 6i and my driver. (Titleist ap2 / 905)
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PHJchem: Cobalt Confusion!
phj1990
987 views
Cobalt can't make up his mind whether it prefers being blue or pink.
I'm making solutions of cobalt(II) chloride, which are blue or pink, dependant on temperature and conc...
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PHJchem: Green + Green = Blue? Complex Chemistry!
phj1990
1,008 views
This really is a remarkable chemical experiment. Copper can form many coordination complexes in its second oxidation state. At least two of them are green. But a combinatio...
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PHJchem: Potassium Chlorate and Sugar Pyrotechnics
phj1990
605 views
I'm performing an energetic, pyrotechnic, chemical experiment with KClO3 and C12H22O11. When these two chemicals are mixed, a single drop of sulfuric acid will initiate a v...
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PHJchem: Iodine Adventures
phj1990
2,590 views
(solution below!) I'm performing a few experiments with element 53; iodine. Physical appearance, solubility and complexes are the main subjects.
Derkozten, you've got th...
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PHJphys: Free Fall Pendulum part1: Ceramic Cup
phj1990
1,074 views
I'm smashing a ceramic cup onto some pavement bricks in this experiment. Luckily, physics comes to the rescue, since there's a so-called "conservation law of angular moment...
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PHJchem: Painting with Iron
phj1990
995 views
I'm going to paint with iron(III), using ammonium thiocyanate, sodium chloride and potassium ferrocyanide. Colored complexes will be formed when the dry chemicals meet ferr...
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PHJchem: The Chemical Thermometer
phj1990
680 views
I'm performing an interesting experiment based on a temperature dependant coordination equilibrium of two complexes of cobalt(II). In other words: a mix that changes color ...
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PHJtravel: CERN 2008; VIENT on tour
phj1990
3,092 views
For a modern physics project of my school (the Praedinius Gymnasium Groningen) an educative trip to CERN, Geneva was organized. This movie is a quick impression of me and m...
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PHJphys: The Glowing Pickle
phj1990
3,931 views
When a pickle is subjected to 230 volts of electricity, it will begin to glow. Sodium ions inside the pickle are excited and produce a yellow-orange glow with a wavelength ...
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