By Dolores de la Fuente | Roseburg, Oregon

By Andy Dungan | Near Cotopaxi, Colorado USA

By David Hawkes | South Yorkshire

By Tom Tan | Melbourne, Australia

By Mandy Daniels | Derbyshire, UK

By Armando Caussade | San Juan, Puerto Rico

By Kris Pamintuan | Alpine, CA, USA

By Hassan Dadashi.Arani | Esfahan province. Iran

By Stephen Montag | Livingston, New Jersey

By Cecille Kennedy | Depoe Bay, Oregon

By Nina Gorenstein | West Lafayette, IN, USA

By GREG REDFERN | CALIFORNIA SCIENCE CENTER, LOS ANGELES, CA

By Mario Rana | Hampton, Virginia

By Victoria Bryhan | Corvallis, Oregon

By Steven Bellavia | Smithfield, VA

By Hassan Dadashi.Arani | Esfahan. Iran