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Simon Dobbs's Shop

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I taught chemistry for 25 years. I now provide tuition online. I just like nicely produced, imaginative resources.

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I taught chemistry for 25 years. I now provide tuition online. I just like nicely produced, imaginative resources.
Fleming's left hand rule
simondobbssimondobbs

Fleming's left hand rule

(1)
I needed a clean, scalable (vector)graphic of fleming’s left hand rule that I could freely use in my resources, so resorted to drawing my own. I thought I would share it. If anyone would like to use the editable SVG version or postscript or EPS etc, contact me.
SI Wheel
simondobbssimondobbs

SI Wheel

(1)
I have added the new definitions to the SI wheel of units. Possibly for display in your lab.
Astronomy Autonomy
simondobbssimondobbs

Astronomy Autonomy

(0)
I made a wacky presentation showing some constellations, and a tiny bit of information on the solar system. I also made a movie of the presentation set to music. Just for fun really.
Meniscus
simondobbssimondobbs

Meniscus

(0)
A simple information sheet, with the emphasis on clarity. It may be useful to someone, somewhere.
Graph of boiling points of hydrides.
simondobbssimondobbs

Graph of boiling points of hydrides.

(0)
The traditional textbook graph of this data is very confused. I feel that my presentation of the data emphasizes the role played by hydrogen bonding more clearly. The influence of atomic size on boiling point is also clearly shown by the bp of the noble gases.
Solid, liquid or gas?
simondobbssimondobbs

Solid, liquid or gas?

(0)
Students work out the state different substances are in at room temperature, given their melting point and boiling point.