What Is Love at number two in the United Kingdom and Germany and hit number one in 13 other countries: Austria, Belgium, Denmark, Finland, France, Ireland, Italy, Netherlands, Norway, Portugal, Spain, Switzerland and Zimbabwe. Debuting at number 87 on 28 August 1993, the song reached number 11 on the Hot 100 in the United States. The song also peaked at number 12 in Australia. By March 1994, worldwide sales of "What Is Love" had already reached 2.6 million. When asked about the meaning of "What Is Love" in a 2015 interview, Haddaway said: "Billboard" wrote about the song: "Glorious pop/house ditty recently topped
Rule of thirds (diving) Rule of thirds (diving) In scuba diving, the rule of thirds is a rule of thumb used by divers to plan dives so they have enough breathing gas remaining in their diving cylinder at the end of the dive to be able to complete the dive safely. This rule generally only applies to diving in overhead environments, such as caves and wrecks, where a direct ascent to the surface is impossible and the divers must return the way they came. For divers following the rule, one third of the gas supply is planned for the outward journey, one third is