POOR CHANCES FOR UNITED LONDON (AP): Leicester’s first target was exceeded long ago: Premier League survival. Another landmark was achieved yesterday: Champions League qualification for the first time. By the end of the month, Leicester should have secured the prize once simply unthinkable for such a team: the Premier League trophy itself. Jamie Vardy’s double at Sunderland sealed a 2-0 victory that guaranteed a coveted top-four finish. Leicester remain seven points clear at the top and are starting to resemble a Premier League thoroughbred with their effortless march to a first title. This isn’t what a title run-in should look like for a team yet to win the league title in its 132-year history and were in a relegation scrap this time last season. Tottenham are waiting to pounce on any slip-up by Leicester. The second-place London club responded to Leicester’s Sunderland success by ending a 15-year wait for a home win over Manchester United. A 3-0 victory was secured by Dele Alli, Toby Alderweireld and Erik Lamela scoring within five minutes, 46 seconds in the second half. It pushed Tottenham a step closer to joining Leicester in the Champions League next season, having only featured in Europe’s top competition once before. United look unlikely to be with them, given that cross-town rivals Manchester City are four points ahead in fourth place. As things are progressing, record 20-time English champions United could see Leicester guarantee the title by winning at Old Trafford in three games time. Leicester are in unfamiliar territory but not showing it. There are no nerves, no sign of anxiety from Claudio Ranieri’s team. Some observers suggested the manager was crying when he entered the field after yesterday’s fifth successive win. “It’s fantastic when you see before the match a lot of old ladies with Leicester shirts outside the stadium,” Ranieri said later. “I said, ‘Unbelievable, they came from Leicester to support us.’ That is emotional; that is fantastic; that is football. “I want, through you, to say thank you for the support. It’s unbelievable. They are amazing. They are dreaming and we want to continue to dream. But to do this, we must be concentrated.” It’s looking bleak for Sunderland, who are four points from safety but with a game in hand over Norwich. There was little at stake in yesterday’s third game apart from Liverpool gaining confidence ahead of their Europa League quarter-final second leg against Borussia Dortmund, which is locked at 1-1. Liverpool dislodged Stoke from eighth place by beating the Anfield visitors 4-1. Alberto Moreno’s fine Liverpool opener was cancelled out by Bojan Krkic in the 22nd minute. But Daniel Sturridge restored Liverpool’s lead before half-time and substitute Divock Origi netted twice after the break.
In 1930, Einstein and Leo Szilard designed a refrigerator that required no electricity and had no moving parts. While almost everybody knows how Einstein revolutionized physics with his theories of relativity, many people may not know that the great scientist had a domestic side, too. Well, sort of – in 1930, Einstein and his former student Leo Szilard designed a refrigerator that required no electricity and had no moving parts. However, as refrigerator technology became more efficient, Einstein’s design was nearly forgotten. Citation: Einstein’s green refrigerator making a comeback (2008, September 25) retrieved 18 August 2019 from https://phys.org/news/2008-09-einstein-green-refrigerator-comeback.html Now, Malcolm McCulloch, an electrical engineer at Oxford, is trying to bring Einstein’s refrigerator back. McCulloch explains that the design is environmentally friendly and could prove especially useful in developing countries, where demand for cooling appliances is quickly increasing.McCulloch’s team has recently built a prototype of Einstein and Szilard’s refrigerator. Instead of compressing man-made greenhouse gases called freons, as typical refrigerators do, the prototype uses pressurized gas to keep items cold. The refrigerator just requires a way to heat the liquids, and McCulloch has been working on developing a solar energy system to meet this requirement.The refrigerator is based on the idea that liquids boil at low temperatures when the surrounding air pressure is low. “If you go to the top of Mount Everest, water boils at a much lower temperature than it does when you´re at sea level, and that´s because the pressure is much lower up there,” McCulloch said.In their refrigerator prototype, the scientists filled a flask with liquid butane (which is also commonly sold as a liquid in cigarette lighters and as a gas for cooking). Then the scientists introduced a new vapor to decrease the air pressure, which decreases the liquid boiling temperature, causing the butane to boil. As the butane boils, it takes energy from the surroundings, and lowers the temperature inside the refrigerator. Although Einstein and Szilard´s original design was not as efficient as the freon refrigerators that replaced them, McCulloch plans to improve the design by using different kinds of gases. He predicts these improvements could quadruple the refrigerator´s efficiency. The fact that the refrigerator has no moving parts could also be advantageous, he explains, as it would require minimal maintenance and so could be particularly useful in rural areas. McCulloch emphasizes that the refrigerator is still just a prototype, but he hopes to one day commercialize it. The work is part of his team’s three-year project to develop robust appliances that can be used in locations without electricity.via: The Guardian This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only.