<iframe width="580" height="385" src="https://www.youtube.com/embed/U8mF08OmFks" frameborder="0" allowfullscreen></iframe> <br>Life Size Holographic Projection welcomes visitors to BrainSTEM festival. http://www.tradeshowhologram.com 3D Hologram and virtual presenter greets guests ... <br><a href="https://www.youtube.com/watch?v=U8mF08OmFks">source</a>