Inverters are made in many different sizes. They can be as small as 150 watts, or as large as 1 megawatt (1 million watts). Smaller inverters often plug into a car's cigarette lighter socket and provide 120 or 240 volt AC power from the car's 12 volt supply.
The earliest inverters consisted of a DC motor connected mechanically to an AC generator. A later design often used with vacuum tube car radios consisted of a rapidly switching relay. Modern inverters are based on MOSFET or IGBT transistors.
1998 FIFA World Cup
The 1998 FIFA World Cup was a football sporting event that was held in France from 10 June to 12 July 1998. 32 teams took part from many countries. France won the trophy after beating Brazil in the final 3-0.
A win would earn the team 3 points, a draw would earn them 1 point, and a loss earns them no points.
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1994 FIFA World Cup
The 1994 FIFA World Cup was a football sporting event that was held in USA from June 17 to July 17, 1994. 24 teams took part from many countries. Brazil won the trophy after Roberto Baggio from Italy famously missed the last penalty in a penalty shootout.
won the championship.
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1990 FIFA World Cup
The 1990 FIFA World Cup was a football (soccer) sporting event that was held in Italy from 8 June to 8 July 1990. 24 teams took part from many countries. Germany won the trophy after beating Argentina in the final.
The 1990 FIFA World Cup had the lowest amount of goals, and had 16 red cards handed out. However, the 1990 FIFA World Cup was one of the most watched sporting events of all time. This was also the last World Cup that had 2 points for a win in the Group Stage.
24 teams qualified for the 1990 FIFA World Cup. Costa Rica, Republic of Ireland and the United Arab Emirates qualified for the first time.
Hosts Italy won Group A with a 100 percent record. They beat Austria 1–0 thanks to substitute Salvatore 'Totò' Schillaci, who had played only one international before but would become a star during the tournament. A second 1–0 victory followed against a United States team already thumped 5–1 by Czechoslovakia. The Czechoslovaks ended runners-up in the group, while the USA's first appearance in a World Cup Finals since 1950 ended with three consecutive defeats.
Cameroon defeated reigning champions Argentina. Despite ending the match with only nine men, the African team held on for a shock 1–0 win, with contrasting fortunes for the brothers Biyik: François Omam scoring the winning goal, shortly after seeing Andre Kana sent off for a serious foul. In their second game the introduction of Roger Milla was the catalyst for a 2–1 win over Romania, Milla scoring twice from the bench (making him the oldest goalscorer in the tournament). With progression assured, Cameroon slumped to a 4–0 defeat in their final group game to a Soviet Union (in what would be their last World Cup due to the dissolution of the Soviet Union) side striving to stay in the tournament on goal difference after successive 2–0 defeats. A 1–1 draw between Romania and Argentina sent both through, the latter as one of the best third-placed teams.
Costa Rica beat Scotland 1–0 in their first match, lost 1–0 to Brazil in their second, then saw off Sweden 2–1 to claim a place in the second round. Brazil took maximum points from the group. They began with a 2–1 win over Sweden, then beat both Costa Rica and Scotland 1–0. Scotland's 2–1 win over Sweden was not enough to save them from an early return home as one of the two lowest-ranked third-placed teams.
Group D featured the most goals of all the groups, due in part to the defensive inadequacies of a United Arab Emirates team that lost 2–0 to Colombia, 5–1 to West Germany and 4–1 to Yugoslavia. West Germany topped the group after a 4–1 opening victory over group runners-up Yugoslavia.
The winners of Group E were Spain, for whom Michel hit a hat-trick as they beat South Korea 3–1 in an unbeaten group campaign. Belgium won their first two games against South Korea and Uruguay to ensure their progress; Uruguay's advance to the second round came with an injury time winner against South Korea to edge them through as the weakest of the third-placed sides to remain in the tournament.
Group F, featured the Netherlands, England, the Republic of Ireland and Egypt. In the six group games, no team managed to score more than once in a match. England beat Egypt 1–0, thanks to a 64th-minute goal from Mark Wright – and that was enough to win the group.
The Republic of Ireland and the Netherlands finished with identical records. With both teams assured of progressing, they were split by the drawing of lots to determine second and third place.
The knockout stage involved the 16 teams that qualified from the group stage of the tournament. There were four rounds of matches, with each round eliminating half of the teams entering that round. The successive rounds were: round of 16, quarter-finals, semi-finals, final. There was also a play-off to decide third/fourth place. For each game in the knockout stage, any draw at 90 minutes was followed by 30 minutes of extra time; if scores were still level there would be a penalty shoot-out (at least five penalties each, and more if necessary) to determine who progressed to the next round. Scores after extra time are indicated by (aet), and penalty shoot outs are indicated by (p).
Two of the ties – Argentina vs Brazil and Italy vs Uruguay – pitted former champion countries against each other, and West Germany met the Netherlands in a rematch of the 1974 World Cup Final.
The all-South American game was won for Argentina by a goal from Claudio Caniggia with 10 minutes remaining after a run through the Brazilian defence by Diego Maradona and an outstanding performance from their goalkeeper Sergio Goycochea. It would later come to light that Branco had been offered water spiked with tranquilisers by Maradona and Ricardo Giusti during half time, to slow him down in the second half. Initially discredited by the press, Branco would be publicly proven right years later, when Maradona confessed the episode in a TV show in Argentina. As for Italy, a strong second half showing saw the hosts beat Uruguay 2–0, thanks to another goal from Schillaci and one from Aldo Serena.
The match between West Germany and the Netherlands was held in Milan, and both sides featured several notable players from the two Milanese clubs (Germans Andreas Brehme, Lothar Matthäus and Jürgen Klinsmann for Internazionale, and Dutchmen Marco van Basten, Ruud Gullit and Frank Rijkaard for Milan). After 22 minutes Rudi Völler and Rijkaard were both dismissed after a number of incidents (including Rijkaard spitting on Völler) between the two players left the Argentine referee with no option but to send them both off. As the players walked off the pitch together, Rijkaard spat on Völler a second time. Early in the second half, Jürgen Klinsmann put the West Germans ahead and Andreas Brehme added a second with eight minutes left. A Ronald Koeman penalty for the Netherlands in the 89th minute narrowed the score to 2–1 but the Germans saw the game out to gain some revenge for their exit to the Dutch in the previous European Championship.
Meanwhile, the heroics of Cameroon and Roger Milla continued in their game with Colombia. Milla was introduced as a second-half substitute with the game goalless, eventually breaking the deadlock midway in extra time. Three minutes later he netted a second after Colombian goalkeeper, René Higuita was dispossessed by Milla while well out of his goal, leaving the striker free to slot the ball into the empty net. Though the deficit was soon reduced to 2–1, Cameroon held on to become the first African team ever to reach the World Cup quarter-finals. Costa Rica were comfortably beaten 4–1 by Czechoslovakia, for whom Tomáš Skuhravý scored the tournament's second and final hat-trick.