There are four types of sounds that the cochlea produces: 1  Spontaneous acoustic emissions - the cochlea produces these sounds spontaneously (not in response to another sound). These only occur in approximately 40-50 percent of people with normal hearing.
Discovery Green. Discovery Green is a public urban park in Downtown Houston, Texas, United States. Opened in 2008, Discovery Green 11.78-acre (47,700 m2) is located on Avenida de las Americas across from the George R. Brown Convention Center and the Hilton Americas Hotel, adjacent to Toyota Center.
<p>Webb Mountain Discovery Zone is an outdoor learning center that offers science, history and nature programs for schools, families and individuals.&nbsp;Located on 171 acres of land, this center features three trails, complete with learning stations, on which interactive scavenger hunts take place.&nbsp;</p> <p>Guided school field trips are ...