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Flat icons
physics, speech, magnet
Black
256x256
physics, magnet, Key
cancel, magnet, physics
physics, Clock, magnet
iOS 7 icons
physics
512x512
physics, magnet
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Mixed
Outline
Miscellaneous
magnet, physics, miscellaneous
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Education & science
Handdrawn
Brainy Icons Free — 36 Science and Education Icons
fall, mac, gravitation
64x64
science, Atom, nuclear
Molecule, science, Social
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Mobile apps
Glyph
Free Retina Icon Set
Horseshoe, physics, magnet
60x60
Gaming & gambling
Photorealistic
48x48 Free Object Icons
neutron, Atomic, physics
48x48
3D
Super Vista
science, Atom, cellular
400x400