Theoretical vs. Actual Network Speeds. The performance of Wi-Fi networks practically never approach these theoretical maximums. 802.11b networks, for example, generally operate no faster than about 50 percent of theoretical peak, around 5.5 Mbps. Likewise, 802.11a and 802.11g networks generally run no faster than 20 Mbps.
It is not unusual to see aerobic dance and Zumba, a form of dance to Latin music, offered in neighborhood gyms and community centers. Both have similarities but some differences for participants.
Alberto Beto Perez initiated the Latin dance class now known as Zumba in an aerobics class in Cali, Colombia in 1986, according to the New York Times. Perez arrived to teach class one day without his traditional aerobics music, so he substituted Latin music he had with him at the time.