12 March 2016
Last updated at 11:18
	  
	
	
     
         
 
    
    
		
        
   Snapchat recently introduced advertising to its platform, in a bid to start generating revenue
    Snapchat recently introduced advertising to its platform, in a bid to start generating revenue
   
	
                      
Alex is 7, in first grade and a huge superhero fan. His mom told him they were going to Atlanta to meet Manero and a specialist who were working on a new arm for the boy. 
 
The video was posted Thursday by Downey as well as Microsoft, which arranged the meeting as part of its social media campaign, The Collective Project, celebrating students using technology to change the world. It very quickly went viral on social media.
Through 3-D printing technology, Alex and others have had the chance to get a robotic arm so they can use their limbs again. Alex received his robotic arm in the summer, then later had it upgraded to resemble a "Transformers" arm. 
 (CNN)Robert Downey Jr. may be Iron Man in the popular Marvel superhero films, but he recently dealt in some advanced bionic technology himself.
"He didn't question it much, so we kind of just went with it,锋速达车间负压通风降温设计得到了广大客户的一致好评," his mom, Alyson Pring, told CNN. "Afterward, I asked, 'Why were you so quiet?' He said, 'I was freaking out!' "
        
Manero met Alex through E-Nable, a volunteer network that matches people who have 3-D printers with children who need limbs. Alex's mom wanted to get him a replacement hand because he was being teased. 
The actor showed the child two arms,锋速达模压风叶得到了广大客户的一致好评, one from Downey's movies and one for Alex: a real, working robotic Iron Man arm. As they both tried theirs on, they compared the lights inside their palms.
        
 来源:Cnn 更新时间:2016-03-13 08:40:23 分类:Life 关键词:...
Downey recently presented a robotic arm to young Alex Pring, a Central Florida boy who is missing his right arm from just above his elbow. The arm was made by Limbitless Solutions, a volunteer group started by Albert Manero, a University of Central Florida engineering PhD student, to make free bionic arms for kids. 
        
        
        
Chinese internet giant Alibaba has invested approximately $200m (?133m) in a stake in messaging application Snapchat, the BBC understands.
To find out more about Alex and the Collective Project, here's our recent story on the topic of 3-D printed limbs.
Snapchat says its users send 700 million snaps daily, recently started generating revenue from advertising.
This past Saturday, Alex received an even more impressive gift, from "Tony Stark" himself. Downey met with Alex in an Atlanta hotel room.