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The Three-Light Traffic Light, Invented  by Garrett Morgan in 1923 With only an elementary school education, black inventor (and son of a slave),  Garrett Morgan came up with several significant inventions, including an improved sewing machine and the gas mask. However, one of Morgan's most influential inventions was the improved traffic light. Without his innovation, drivers across the nation would be directed by a two-light system. Thanks to the successes of his other inventions, Morgan became the first black person in Cleveland, Ohio to own a car. As a motorist, he witnessed a severe car accident at an intersection in the city. In response, he decided to expand on the current traffic light by adding a “yield” component, warning oncoming drivers of an impending stop. He took out the  patent for the creation in 1923 , and it was granted to him the following year.

Galaxy S (2010): The original S-series handset was released days ahead of Apple's iPhone 4, and had a bigger 4in screen and microSD card slot in its favour. At that point, its main Android rival was the HTC Desire, and although Samsung's device was lighter, thinner, and had a more powerful graphics processor, some reviewers  said it felt less "premium " in the hand than its competitor. Galaxy S2 (2011): The second-generation device saw its display grow to 4.3in, its rear camera increase in resolution to 8MP, and its processor move over to a dual-core design. It was praised for allowing owners to unlock it by pressing the home key, rather than having to press a button on top as before. And although some griped that it still felt plasticky, it sold in its millions - helping Samsung overtake Nokia as the world's bestselling mobile phone-maker. Galaxy S3 (2012): The third-generation model established a trend of including a bigger display but compensati...

Image copyright AFP Image caption "Ad hoc observers", like these in Adamawa, will have to be in place for the rescheduled election Nigeria is to hold a delayed presidential election this Saturday after the initial vote was rescheduled in a dramatic overnight press conference, five hours before polls were due to have opened. The last-minute cancellation surprised the country and inconvenienced thousands of Nigerians who had travelled a long way to cast their votes. It has also cost the economy $1.5bn (£1.15bn), according to the Lagos Chamber of Commerce and Industry. The Independent National Electoral Commission (Inec) has given several reasons for the delay, including attempted sabotage and logistical issues such as bad weather and problems with delivering the ballot papers. Election in numbers 84 million registered voters 51% of the electorate under the age of 35 73 registered presidential candidates 120,000 polling stations The governing All Progressives Con...

The National Youth Service Corps has urged the Independent National Electoral Commission to keep to its pledge of ensuring the safety and welfare of all corps members deployed as ad hoc staff for the general elections. Mrs Adenike Adeyemi, the NYSC Director, Press and Public Relations, in a statement in Abuja on Tuesday, said the commission had assured the scheme that adequate arrangements had been made for transportation, accommodation and security for corps members deployed for the exercise. “The attention of NYSC management has been drawn to uninspiring pictures and tales of woes experienced by many corps members assigned to INEC duties in several states across the country on the eve of the postponed general elections. “These have been confirmed as authentic situation reports and have since been brought to the attention of the INEC management. “While these incidents have been adduced to the logistic challenges which INEC experienced, the NYSC wishes to note that the unpleasant...

© Daniele Venturelli/WireImage Karl Lagerfeld © AFP/Getty Images Karl was known for his signature outfit Karl Lagerfeld has died at 85, according to sources close to Chanel. The iconic fashion designer, who was the creative director of Chanel, died after a period of ill health that lasted for weeks. Karl Lagerfeld died on Tuesday, February 19th, French magazine  Closer  reports. He had missed two of Chanel's haute couture shows in Paris on January 22, but the fashion company only said at the time he was feeling tired.  In a statement read out after he missed the second show, it said: "Mr Lagerfeld, artistic director of Chanel, who was feeling tired, asked Virginie Viard, director of the creative studio of the house, to represent him." It was the first time he had ever missed giving a catwalk bow at the end of a Chanel show. Karl has presided over the iconic fashion house, established by Coco Chanel, for more than three decades, producing as much as eight colle...

© Getty An artist's impression of the Milky Way galaxy colliding with Andromeda. Our galaxy, the Milky Way, is moving towards the Andromeda galaxy. Astronomers predict that in about 4 billion years, the two galaxies will collide and begin to merge. The Solar System's fate is uncertain. It might end up in the final, larger galaxy, orbiting further from the core than it does now, or it might be ejected into space altogether. © Provided by AFP The study used radio astronomy to look at a segment of sky and found 300,000 previously unseen light sources thought to be distant galaxies The known Universe just got a lot bigger. A new map of the night sky published Tuesday charts hundreds of thousands of previously unknown galaxies discovered using a telescope that can detect light sources optical instruments cannot see. The international team behind the unprecedented space survey said their discovery literally shed new light on some of the Universe's deepest secrets, including...

After a strong start to the season, the Blues have slipped down to sixth in the Premier League table following three straight away defeats. Chelsea are still in all three cup competitions, including the final of the Carabao Cup where they face Manchester City next weekend. Chelsea chiefs want to see evidence Maurizio Sarri can improve the Blues – or the Italian’s time at Stamford Bridge may be short lived.  That is according to ESPN FC pundit and European football expert Julien Laurens. Sarri was only appointed as successor to Antonio Conte in July 2017 but his long-term future at Chelsea is already in doubt after a poor run of results since the turn of the year.  Like Conte, Laurens cannot see a cup win saving Sarri his job. He instead thinks director Marina Granovskaia and owner Roman Abramovich want clear examples Sarri is taking the club in the right direction. “I’m not sure it [winning the FA Cup] would be enough,” Laurens said. “It was not enough for Antonio Conte, for...