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The San Francisco Giants added a special pitcher to their roster for the day. It was small -- yet fierce -- Hailey Dawson, who has a 3D-printed hand.

Hailey Dawson is already a veteran of tossing the ceremonial first pitch at the ripe old age of seven. She’s got two Major League games under her belt and is about to add a third, with her biggest audience yet, as she kicks off Game 4 of the World Series in Houston.

In search of someone to help print a hand for Hailey, Engineers at 51³Ô¹ÏºÚÁÏ’s Howard R. Hughes College of Engineering took on the project using Stratasys Fortus 250mc 3D printer. By 2015, Hailey was throwing her first opening pitch at a 51³Ô¹ÏºÚÁÏ Rebels baseball game, which quickly led to an MLB game.

Late in the afternoon in early October, the Dawson family gathered to watch son Zach’s baseball game.

Mom couldn't find a company to create a robotic hand for her daughter, so she came up with a novel solution.

A group of Nevada researchers plans to take solar eclipse viewing to new heights. They’re launching a balloon outfitted with cameras to the edge of space just as the eclipse shadow rolls over eastern Oregon and Idaho. The idea is to capture unique images from the first total solar eclipse viewable from the contiguous United States since 1979.

While 3D printed prosthetics are good at helping people complete simple tasks like holding a pen or opening a door, we’ve also seen some special 3D printed prostheses for use in activities like playing an instrument, running, or playing sports, like baseball. 7-year-old Hailey Dawson, who is missing the three middle fingers on her right hand, wants to show people that kids with handicaps like hers can still have great lives and enjoy normal activities. You may ask how exactly she plans to do this, and the answer is pretty interesting – by throwing out the ceremonial first pitch for every Major League Baseball (MLB) game.

The little girl squirmed in her mother’s arms inside a lab at the University of Nevada, Las Vegas, her American flag-themed dress contrasting with the hammers, rulers and other engineering equipment that surrounded her.