Lego Antikythera Mechanism. Touch Effects. Hands-on-cern.physto.se/ani/acc_lhc_atlas/lhc_atlas.swf. National Air and Space Museum: How Things Fly. Spinning Death Spheres! Scientific Tuesdays - Ferro Fluid Tests - Magnetic Liquid. Melt Metal Easily! (Gallium) Scientific Tuesdays - Candy Nuke. HOW TO: Solar Spirit Lights. Simple Snow Globes! (Cheap Gift) Easy Fake Spill Prank (How To)