This java applet is a simulation that demonstrates electrodynamics in two dimensions, including setups which demonstrate electromagnetic waves, reflection at conductors, radiation from antennas, standing waves, waveguides, and diffraction. To get started with the applet, just go through the items in the Setup menu in the upper right. The arrows indicate electric field (and current, in the gray conductors); the green and red indicate magnetic field.
Create your own dynamic desktop wallpaper for your Mac.
View planets and their moon from Solar System on your Mac.
This app lets you choose from various wallpapers for your desktop.
Live Desktop makes the Mac desktop alive with amazing live themes.
Offshoots is for animating the wallpaper of your desktop with growing trees.
Classify desktop pictures whenever you change or get a new wallpaper.
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