Are Mean Coaches Effective?

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Are Mean Coaches Effective?         Experts say no, but some believe old-school tantrums motivate through fear. Read More WATCH VIDEO: Why Do We Fear Things? DNews traces the origins of deep-rooted fears. Why Did Old-Time Announcers Talk That Way?         Old-time sports announcers had a very specific style and cadence to their speech, which can be attributed to technique and technology. Read More WATCH VIDEO: Voice Recognition Find out which of your voices is the "true" voice and why. Human Games Future Aliens Could Play         A designer fashions a game that aliens might play after humanity gets wiped out. Read More WATCH VIDEO: Video Game Evolution Jorge Ribas looks back at Pong, Super Mario and more. Telescope Watches White Dwarf Warp Spacetime         The Kepler space telescope's prime objective is to hunt for worlds orbiting distant stars, but that doesn't mean it's not going to detect some extreme phenomena along the way.  Read More WATCH VIDEO: Hubble's Latest Camera The Wide Field Camera 3 lets Hubble look deeper into space and further back in time than ever before. Follow Discovery News on Facebook! Get your sci-tech headlines all day on Twitter too! Follow us @Discovery_News. At Discovery we value your privacy. If you would like to be removed from Discovery News emails like this, please click here to our subscription center, where you can manage your account. We recently updated our privacy policy. This policy is effective as of 10/30/07. To see new policy click here . Discovery Communications, LLC One Discovery Place Silver Spring, MD 20910 © 2013 Discovery Communications, LLC