#  Day 4, Friday, June 11, 2021: 

 



##  Alan Needleman 

 





 

 

 



 

 

 

##  Philippe H. Geubelle 

 





 

 

 



 

 

 

##  Yehuda Ben-Zion 

 





 

 

 



 

 

 

##  Allisar Yehya 

 





 

 

 



 

 

 

##  Colin R. Meyer 

 





 

 

 



 

 

 

##  Jeffrey Kysar 

 





 

 

 



 

 

 

##  Chen Gu 

 





 

 

 



 

 

 

##  Nadia Lapusta