4D volume clipping (VIDEO) Optica This video is under embargo. Please login to access this video. Caption The clipping spline provides 4D volume clipping, featuring a smooth flythrough from the outside of the embryonic yolk sac to the inside of the beating embryonic heart. Credit Andre C. Faubert and Shang Wang, Stevens Institute of Technology Usage Restrictions None License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.