A rotary dial cell phone A rotary dial cell phone…why not? It’s not as cool as the mechanical calculator. Facebook Prev Article Next Article Gadgets Checkout these cool gadgets... Related Posts Top 8 Inventions to Torment Bike Thieves RC Bionic Bird The Tiny Egloo Can Heat Your Home Without Electricity for Just 10-Cents a Day Electronic bumper stickers Flying Manta Ray Inflatable Watercraft The Knife-Shooting Slingshot