1 The air we breath is a mixture of gasses: primarily nitrogen, oxygen, & carbon dioxide. 2  So, the air you blow into a balloon creates pressure that causes the balloon to expand (& this pressure is generated as all the molecules of nitrogen, oxygen, & carbon dioxide move about & collide with the walls of the balloon).
Bravo Sports Corp. in Santa Fe Springs bought Sector 9 in La Jolla on undisclosed terms. Bravo makes scooters, skateboards, helmets and other sporting goods under about 20 brands. Sector 9 makes skateboards, surfboards, snowboards, gear, and accessories under three brands, and had been owned by Billabong International.
1958: The skateboard is made from roller skates attached to a board. This is really where it all starts. 1959: Roller Derby mass produces a skateboard with metal wheels. 1963-66: Surfboard companies like Makaha and Hobie start making better-quality skateboards with clay wheels and trucks that are made for skating. The first skate contest is put on in Hermosa Beach, California, in 1963.