The authors wish to thank the following institutions and individuals for their support:

The Eduard Job Foundation for Thermodynamics and Chemical Dynamics (Hamburg, Germany) has provided generous financial support that will make the completion of the PSS Learning Environment possible.
The Department of Physics (part of the School of Engineering) of the Zurich University of Applied Sciences at Winterthur continues to provide manpower and infrastructure for setting up many of the experiments used in the PSS Learning Environment.
The University of Applied Sciences of Western Switzerland at Fribourg supported the creation of an early version of the learning environment.
A. Baumann has provided several of the movies and many of the photographs used in the learning environment.
Students at the Zurich University of Applied Sciences at Winterthur have been using the materials and have provided important feedback over the years.
Water wheel: A. Baumann, ZHAW.
Bandakoro-otaki Falls, Norikura Highlands. Nagano Prefecture, Japan.(c) Tomo.Jun (
Power line. (c) Ian Britton -
Ozone hole.
Electric arc. Courtesy Aare-Tessin AG, Switzerland.
Distillation colums. (c) Ian Britton -

Chapter 1
Aortic arc. Courtesy WebMD, Inc.
Clouds. Gas flare. (c) Ian Britton -

Chapter 2
Electric arc. Courtesy Aare-Tessin AG, Switzerland.
Generators. (c) Ian Britton -
Diodes, period doubling, and chaos: Rhonald Lua,

Chapter 3
Eruption of Mount Etna. (c) Tom Pfeiffer.,

Chapter 4
Distillation colums. (c) Ian Britton -
Gas flare. (c) Ian Britton -
Neurons in the brain. Benedict Campbell. Wellcome Images. Creative Commons License.
Nerve cell:
Ozone hole.

Chapter 5
Comet Shoemaker-Levy Collision with Jupiter. Calar Alto Picture of Fragment A impact. Courtesy NASA/JPL-Caltech.
Sonic boom F-18. Courtesy Ensign John Gay, USS Constellation, US Navy.
Asteroid Ida with its moon Dactyl: Courtesy JPL, Nasa,
WMAP at L2. Courtesy Nasa.
Stromboli photo: Tom Pfeiffer /

Cooling towers. (c) Ian Britton -
Flusslaufkraftwerk Eglisau. Courtesy VSE (Verein Schweizerische Kraftwerke).
Picutre Credits