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"Finally a celebrity fighting back": Cardi B hurls mic at concert goer

<p>The latest celebrity to be hit with something on stage has fought back, as Cardi B took revenge on the concert goer who threw a drink over her during a performance. </p> <p>The rapper, 30, was performing in Las Vegas on Saturday, as she sang her 2018 song, <em>Bodak Yellow</em>, that propelled her to global fame. </p> <p>During the song, a member of the audience threw their drink on stage, splashing the singer in the liquid. </p> <p>Cardi B immediately retaliated by lobbing her microphone into the crowd, targeting the audience member. </p> <p>The fan was led out of the crowd by security, while the performer took the time to casually fix up her hair before continuing her performance. </p> <blockquote class="twitter-tweet"> <p dir="ltr" lang="en">Cardi B throws microphone at audience member who threw a drink at her. <a href=""></a></p> <p>— Pop Base (@PopBase) <a href="">July 30, 2023</a></p></blockquote> <p>The confrontation, which was filmed by many fellow concert goers, has since gone viral, with many commending the artist for fighting back. </p> <p>"Finally a celebrity fighting back," said one.</p> <p>"Exactly, it's about time a performer retaliated to this 'trend'," another agreed.</p> <p>"She did what needed to be done! People need to stop throwing stuff at performers," added another fan.</p> <p>The incident in Vegas was the second time in just 24 hours that the singer was captured on video hurling a microphone at inconsiderate fans. </p> <p>The singer was performing at another club in Las Vegas the night before, when the DJ in control of her music kept cutting out the track as she was trying to sing. </p> <p>After the song stopping and starting abruptly several times, Cardi B yelled out her own name before spinning around and aiming the microphone at the DJ before storming off the stage.</p> <p><em>Image credits: Twitter</em></p>


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Targeting shooters: technology that can isolate the location of gunshots

<p>Inexpensive microphone arrays deployed in urban settings can be used to pinpoint the location of gunshots and help police respond instantly to the scene of crimes, scientists say.</p> <p>The process works by recognising that a gunshot produces two distinct sounds: the muzzle blast, and the supersonic shockwave that follows it. Luisa Still of Fraunhofer Institute for Communication, Germany, told a meeting of the <a href="" target="_blank" rel="noreferrer noopener">Acoustical Society of America in Denver, Colorado</a>, this week that by using those two signals – in a process akin to that by which seismologists track seismic waves from earthquakes – police departments armed with the right equipment could pinpoint the location of the shot within seconds.</p> <p>It’s not as straightforward as it sounds. In an urban environment, buildings and other structures can reflect, refract or absorb sound waves, causing the sounds of the shot to come at the microphones from any number of directions.</p> <p>But it turns out, Still says, that it only takes two such sensor arrays to locate the source of a gunshot — and a good computer can do so very quickly.</p> <p>In tests, her team began on a rifle range, where they confirmed that a pair of such microphone arrays could indeed determine the location of the shooter to a high degree of accuracy.</p> <p>They then moved to an urban environment, where they repeated the experiment, though in this case the shooter was replaced with a propane gas cannon of the type used by farmers to scare away crop-eating birds.</p> <p>Again, two microphone arrays were all that were needed to zero in on the source of the “shot”.</p> <p>Not that this can work anywhere, any time. Still’s signal-location algorithms require maps of the surrounding buildings, the walls of which might affect the sound and, in extreme cases, create “blind spots” if microphone arrays aren’t properly deployed.</p> <div class="newsletter-box"> <div id="wpcf7-f6-p192812-o1" class="wpcf7" dir="ltr" lang="en-US" role="form"> </div> </div> <p>She also notes that research is ongoing as to whether it is better to put microphones at ground level or atop neighbouring buildings. There’s also continuing research around how many might be needed in complex urban cores, where there are a lot of buildings of varying height and echo patterns can become very convoluted. “We still need to evaluate [that],” she says.</p> <p>There’s also the need to weed out noises that sound like gunshots, such as firecrackers, car-engine backfires and anything else that makes a sudden bang. “We are working on classification methods,” Still says, noting that these involve computerised “deep learning” methods that can be trained to distinguish such sounds.</p> <p>Could similar sensors be deployed within a school building in order to locate a school shooter even more quickly that is currently possible? Still was asked. </p> <p>“Oh, yeah,” she said. “I think that would be applicable.” Though she noted that it might also be acoustically “very challenging” to put into practice.</p> <p>Later that same day, 19 school children and two adults were killed in Uvalde, Texas, in America’s worst grade-school shooting in nearly a decade.  </p> <p>Would the death toll have been lower if gunshot sensors such as Still’s were widely deployed? Who knows? But it was one of the most stunningly prescient scientific presentations imaginable, because she spoke less than an hour before the Uvalde gunman opened fire. It was far too late for her research to be able to deflect the tragedy that was about to unfold, but close enough to it to underscore the urgency of what she was doing.</p> <p><img id="cosmos-post-tracker" style="opacity: 0; height: 1px!important; width: 1px!important; border: 0!important; position: absolute!important; z-index: -1!important;" src=";title=Targeting+shooters%3A+technology+that+can+isolate+the+location+of+gunshots" width="1" height="1" /></p> <div id="contributors"> <p><em><a href="" target="_blank" rel="noopener">This article</a> was originally published on <a href="" target="_blank" rel="noopener">Cosmos Magazine</a> and was written by <a href="" target="_blank" rel="noopener">Richard A Lovett</a>. Richard A Lovett is a Portland, Oregon-based science writer and science fiction author. He is a frequent contributor to Cosmos.</em></p> <p><em>Image: Getty Images</em></p> </div>